hibernate-orm/changelog.txt

Hibernate Changelog
===================
Note: Newer entries are automatically generated and the description might not
match the actual issue resolution (i.e. a bug might not be a bug). Please
refer to the particular case on JIRA using the issue tracking number to learn
more about each case.


Changes in version 3.2.6 (2008.02.07)
-------------------------------------------

** Bug
    * [HHH-925] - DetachedCriteria.createCriteria not working with alias
    * [HHH-1312] - Unclosed ResultSet when using Identity
    * [HHH-1329] - SchemaValidator fail when views are involved
    * [HHH-1593] - Infinite loop/StackOverflow when calling configuration.setListener(null)
    * [HHH-1685] - DetachedCriteria doesn't create alias on subcriteria
    * [HHH-1753] - DB2Dialect.getCurrentTimestampSQLFunctionName() uses Oracle syntax
    * [HHH-1916] - param values in generator element should be trimmed during HbmBinding
    * [HHH-1956] - Interceptor.afterTransactionCompletion not called with JTATransaction (CacheSynchronization.hibernateTransaction not set)
    * [HHH-2016] - Oracle9Dialect registers last_day() function as "lastday"
    * [HHH-2159] - NullPointerException in FromElement#findIntendedAliasedFromElementBasedOnCrazyJPARequirements with 'hibernate.query.jpaql_strict_compliance' enabled
    * [HHH-2200] - Memory leak in AbstractBatcher with Generated Properties
    * [HHH-2261] - Setting hibernate.hbm2ddl.auto=validate causes problems on mySQL with numeric fields
    * [HHH-2320] - Regression: optional properties under a <join> tag no longer update properly
    * [HHH-2503] - AbstractEntityPersister swallows JDBCExceptions in processGeneratedProperties
    * [HHH-2542] - NullPointerException in TypeFactory.replaceAssociations for ComponentType
    * [HHH-2593] - Keyword UNION is prefixed with "this_." in filter conditions
    * [HHH-2598] - Mapping a collection of entities from two different classes with the same collection name results in duplicate backref property exception if collection keys are not null
    * [HHH-2616] - No event is fired on Collection recreate/remove/update action
    * [HHH-2627] - Generated properties leak prepared statements in Hibernate 3.2.3 and higher.
    * [HHH-2728] - Calling session.clear() while retrieving objects via an iterator will cause a "LazyInitializationException - No Session" by the CGLIBLazyInitializer
    * [HHH-2788] - Oracl8iDialect No Dialect mapping for JDBC type 91
    * [HHH-2795] - CollectionLoadContexts for empy collections are not removed until PersistenceContext.clear()
    * [HHH-2816] - DefaultFlushEntityEventListener.checkNaturalId() causes extra SELECTs on read-only entities
    * [HHH-2833] - insert-select query fails with NPE when select includes join
    * [HHH-2857] - schemaSupport for HSQLDialect remote connections doesn't work
    * [HHH-2861] - cascade="delete-orphan,all" is ignored
    * [HHH-2864] - Merging a detached instance with a new child in a unidirectional one-to-many association fails if the parent was previously loaded as a proxy
    * [HHH-2892] - skip up-to-date checks of query cache for natural-id only if immutable
    * [HHH-2928] - optimizers for enhanced id generators should be synchronized against multi-threaded access
    * [HHH-2948] - QueryStatistics.executionMinTime always = 0

** Improvement
    * [HHH-1630] - duplicate property mapping - more details
    * [HHH-1696] - Add outer join support for aliases on DetachedCriteria
    * [HHH-2048] - Incomplete MappingException at org.hibernate.mapping.SimpleValue
    * [HHH-2682] - support for auto-discovery of H2 dialect
    * [HHH-2761] - Handle null and empty string consistently in PropertiesHelper
    * [HHH-2822] - timestamp extraction functions for SAPDBDialect
    * [HHH-2826] - IS [NOT] NULL checks with component values
    * [HHH-2852] - Better error messages when schema validation fails

** Patch
    * [HHH-952] - Patch to allow subqueries with joins using Criteria API and Subqueries with DetachedCriteria
    * [HHH-2070] - Expand DB2Dialect auto-discovery support (Martin Renner)
    * [HHH-2839] - Don't use dummy dual table for hsqldb (David Bala?ic)
    * [HHH-2849] - Better error logging in IdentifierGeneratorFactory (Antony Stubbs)
    * [HHH-2957] - ActionQueue Insertion sort performance degrades exponentially (Jay Erb)
    * [HHH-3084] - DialectFactory detection of Ingres metadata (Michael Leo)

** Task
    * [HHH-2559] - http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd needs to be updated
    * [HHH-3085] - Remove connector.jar (unnecessary library)
    * [HHH-3086] - Remove jdbc2_0-stdext.jar (unnecessary library)


Changes in version 3.2.5 (2007.07.31)
-------------------------------------------

** Bug
    * [HHH-1116] - batch-size typo
    * [HHH-1561] - Missing " in Documentation for H3, Chapter 15.8
    * [HHH-1569] - Immutable Natural Id check fails with ArrayIndexOutOfBounds in some cases
    * [HHH-1694] - Documentation Outdated: "10.4.4. Queries in native SQL"
    * [HHH-2180] - minordocumentation error in hbm xml
    * [HHH-2201] - session.iterate() does not exist
    * [HHH-2267] - A copy/paste mistake in the documentation for <schemavalidator> ant task
    * [HHH-2334] - Documentation error in section 5.1.3
    * [HHH-2420] - Error in 2.5. Contextual Sessions
    * [HHH-2502] - The second level caching documentation states that ehcache is not distributed.
    * [HHH-2631] - Leaking PreparedStatement and ResultSet via CollectionLoadContext instances maintained in Map collectionLoadContexts in LoadContexts
    * [HHH-2649] - Batcher configuration parameter incorrectly documented
    * [HHH-2711] - PropertyAccessException with backref and <composite-map-key/>
    * [HHH-2713] - duplicated phrase in docs "of the of the"
    * [HHH-2714] - Three typos in code examples
    * [HHH-2719] - adddress --> address
    * [HHH-2720] - Monetory --> Monetary

** Improvement
    * [HHH-1022] - incomplete documentation in _README.txt in the lib directory
    * [HHH-1682] - Improve the description of differences between save() and persist()
    * [HHH-2048] - Incomplete MappingException at org.hibernate.mapping.SimpleValue
    * [HHH-2417] - Update book on Hibernate reference
    * [HHH-2418] - Refer HSQL DB website in chapter 1.2.3
    * [HHH-2487] - Typo in "5.1.7. version (optional)"
    * [HHH-2550] - Update API Class in 10.4.3. Criteria queries
    * [HHH-2662] - Workaround PostgreSQL issues in testsuite
    * [HHH-2663] - Map java.sql.Types.REAL to Hibernate FloatType for auto-discovery stuff
    * [HHH-2665] - Split Oracle9Dialect into Oracle9iDialect and Oracle10gDialect

** Patch
    * [HHH-2520] - Miscellaneous config doc spelling fixes
    * [HHH-2630] - Hibernate Dialect is not auto-detected for Sybase ASE and DB2 (Shelley McGowan)
    * [HHH-2758] - Patch IngresDialect based on certification

** Task
    * [HHH-2551] - Deprecate org.hibernate.criterion.Expression
    * [HHH-2566] - Replace usages of FlushMode.NEVER with FlushMode.MANUAL
    * [HHH-2567] - Update reference to use FlushMode.MANUAL
    * [HHH-2568] - Hibernate javadoc overview refering wrong classes and packages


Changes in version 3.2.4.sp1 (2007.05.18)
-------------------------------------------

** Bug
    * [HHH-2605] - Since 3.2.4 no value specified for row id
    * [HHH-2613] - LockMode.FORCE on non versioned entity leads to NPE


Changes in version 3.2.4 (2007.05.09)
-------------------------------------------

** Bug
    * [HHH-511] - reattach object from same session
    * [HHH-2316] - org.hibernate.cache.CacheKey.equals() can cause PropertyAccessException to be thrown
    * [HHH-2553] - New LoadContexts Implementation causing possible performance degradation
    * [HHH-2602] - instrumented many-to-one problem with aggressive release

** Deprecation
    * [HHH-2603] - Deprecate the Session.connection() method

** Improvement
    * [HHH-2549] - Warn users explicitly about schemaexport and schemaupdate does not support annotations

** New Feature
    * [HHH-1] - Optimize Hibernate for the bulk insertion of related entities

** Patch
    * [HHH-2301] - Identity generator with custom insert SQL broken in 3.2 (Scott Rankin and Gail Badner)
    * [HHH-2336] - paremeterizable and typedef-able UserCollectionType (Holger Brands)
    * [HHH-2580] - Performace: Too many lookups of WAS extended transaction support (Jesper Udby)


Changes in version 3.2.3 (2007.04.02)
-------------------------------------------

** Bug
    * [HHH-2376] - Query with fully qualified entity class fails
    * [HHH-2392] - LockModes referencing non-root joined-subclass class in HQL/Criteria
    * [HHH-2393] - Generated properties leave open ResultSet on Batcher to be closed on transaction completion
    * [HHH-2397] - hilo generator can generate negative numbers because of arithmetic overflow
    * [HHH-2469] - ArrayIndexOutOfBoundsException during update by rowid
    * [HHH-2476] - PersistentMap.put() incorrect on uninitialized, non-extra-lazy map
    * [HHH-2481] - Big memory leak in the use of CGLIB
    * [HHH-2499] - incorrect assertion failure relating to generated property values
    * [HHH-2513] - Abusive WARN logged during deserialization of replicated SessionFactory
    * [HHH-2521] - Fix cascading of merge across component properties
    * [HHH-2532] - update/delete executeUpdate() causes problems with JBossCache (at least in opt-locking setups)

** Improvement
    * [HHH-2495] - encapsulate the notion of state pertaining to processing a result set
    * [HHH-2534] - better error message for illegal 'collection dereference' in HQL query
    * [HHH-2535] - Change Cache' Cache71Dialect so that sequence support returns false

** New Feature
    * [HHH-2471] - create a set of "enhanced" generators
    * [HHH-2500] - apply Terradata certification results

** Patch
    * [HHH-2367] - InformixDialect uses wrong data type
    * [HHH-2489] - SQL comments for HQL bulk operations


Changes in version 3.2.2 (2007.01.24)
-------------------------------------------

** Bug
    * [HHH-1471] - If the 'generated' attribute is set to 'insert' or 'always' on the property of a component it is ignored and the value is not read from the database.
    * [HHH-1646] - Bad code in FastClass.equals
    * [HHH-1889] - LockMode.UPGRADE not applied in all cases for SQL Server / Sybase
    * [HHH-2112] - ClassCastException in StatefulPersistenceContext.getCachedDatabaseSnapshot(...)
    * [HHH-2221] - MySQL temp table DDL and isolation
    * [HHH-2238] - SQLQuery executeUpdate doesn't respect Query.setFlushMode()
    * [HHH-2251] - Settings build unnecessary in schemaupdate/schemavalidate
    * [HHH-2257] - Query.iterate() results differ from Query.list() 2
    * [HHH-2259] - autoflush and autoclose not longer occur in JTA environment with hibernate 3.2
    * [HHH-2264] - NPE when NamedQuery contains space before variable name
    * [HHH-2274] - Collection ordering when many to many order by is used is not respected
    * [HHH-2275] - Mapping a composite element as a map key using formulas can lead to AOOBE
    * [HHH-2284] - HQL: selecting components inside components doesn't work
    * [HHH-2291] - collection based on property-ref not handled correctly during reattch
    * [HHH-2292] - merge detached instance fails to persist collection changes in case of bare collection reference
    * [HHH-2356] - NullableType.toString(Object) should account for nulls
    * [HHH-2366] - Changing a component's value does not trigger an update during flush
    * [HHH-2378] - replicate() of non-versioned entiy can result in wrong value for version in entity cache

** Improvement
    * [HHH-1851] - relax special handling of 'id' property
    * [HHH-2130] - SQLQuery does not autoflush all entities used in the query
    * [HHH-2193] - Introduce a flag to avoid checking NamedQuery at startup
    * [HHH-2242] - Consider Allowing Optimistic Lock Strategies other than 'Version' with joined-subclass
    * [HHH-2250] - Create an appropriate error message if Query.setEntity is passed a NULL value
    * [HHH-2282] - PersistentClass property lookups do not properly account for embedded composite identifiers
    * [HHH-2286] - dialect informational metadata
    * [HHH-2372] - Allow tooling to create Settings via SettingsFactory without contacting the db

** New Feature
    * [HHH-2246] - No way to specify CACHE_PROVIDER_CONFIG in HibernateServiceMBean

** Patch
    * [HHH-2300] - Updated dialect for H2 database engine
    * [HHH-2371] - enhancements to C3P0ConnectionProvider

** Task
    * [HHH-2032] - update c3p0 to 0.9.1



Changes in version 3.2.1 (2006.11.16)
-------------------------------------------

** Bug
    * [HHH-939] - 'class' property in HQL results in incorrect SQL for joined-subclass
    * [HHH-1401] - session.merge() executes unnecessary updates when one-to-many relationship is defined.
    * [HHH-1460] - Inconsistent behavior when using Session.get() with multiple subclasses
    * [HHH-1564] - deleting versioned object with collection leads to unecessary update
    * [HHH-1629] - SchemaUpdate/validator doesn't listen to quoting
    * [HHH-1631] - Missing table in SQL from clause that is referenced in where clause when using joined subclass
    * [HHH-1651] - hibernate does not find an existing sequence from an Oracle database
    * [HHH-1663] - <any/> with collection will produce "AssertionFailure: collection was not processed by flush()"
    * [HHH-1737] - Add a ConnectionWrapper interface to allow access to the underlying connection from a BorrowedConnectionProxy
    * [HHH-1756] - Proxy objects are not removed from the BatchFetchQueue during a session evict
    * [HHH-1774] - Component parameters bound incorrectly
    * [HHH-1921] - "dirty, but no dirty properties" thrown when Interceptor resets properties.
    * [HHH-1986] - javassist throws InvocationTargetException instead of original checked Exception
    * [HHH-2027] - merge listener over-writes Interceptor changes to component state for a transient entity
    * [HHH-2044] - DefaultMergeEventListener.entityIsDetached call StaleObjectStateException with wrong identifier
    * [HHH-2082] - UpdateTimestampsCache.isUpToDate returns before checking all spaces
    * [HHH-2108] - cacheable files broken
    * [HHH-2138] - merge with bidirectional one-to-one may fail
    * [HHH-2145] - set.retainAll calling set.addAll
    * [HHH-2174] - Wrong log message in SessionImpl.afterTransactionCompletion(...)
    * [HHH-2199] - Unique constraints on nullable columns should not be generated with unique-key is used and supportsNotNullUnique=false
    * [HHH-2202] - Clearing the connection warnings even when log is > WARN to workaround a Sybase issue
    * [HHH-2206] - SessionImpl tries to deserialize itself in an incorrect order
    * [HHH-2207] - Suggested fix for HQL - MySQL setMaxResults issue
    * [HHH-2226] - org.hibernate.hql.ast.tree.FromElementType contains warning log message that should be debug instead
    * [HHH-2229] - Performance issue with fix for HHH-1293, CGLIBLazyInitializer may be slower for certain Java classes
    * [HHH-2236] - Lazy property + setReadOnly + Instrumented classes results in NullPointerException when accessing lazy property

** Improvement
    * [HHH-2037] - provide Query.setProperties(Map)
    * [HHH-2042] - Typo in FlushMode.MANUAL Javadoc
    * [HHH-2057] - Add "remove" cascading style to CascadeStyle for XML mappings
    * [HHH-2127] - Document <filter-def condition="defaultCondition"> and <filter-def>defaultCondition
    * [HHH-2135] - Hibernate Deserialization:  In org.hibernate.type.SerializableType the code makes a test for the return of a null object by simply testing the object as to whether or not it is null.
    * [HHH-2185] - introduce setting to control cglib caching of classes
    * [HHH-2203] - Make Post*Events extend AbstractEvent
    * [HHH-2208] - Table schema use in DatabaseMetadata
    * [HHH-2209] - ehcache.jar is old and does not contain the SingletonCacheProvider which are advised in exception messages
    * [HHH-2217] - Collection write methods and dirtying the collection

** New Feature
    * [HHH-2205] - Dialect for Intersystems' Cache SQL 2007.1

** Patch
    * [HHH-1767] - read-only cache for immutable collection causes unnecessary warning

** Task
    * [HHH-2219] - Upgrade to Javassist 3.4


Changes in version 3.2.0.ga (16.10.2006)
-----------------------------------------
(retag of 3.2.0.ga (2006.10.16))

Changes in version 3.2.0.cr5 (04.10.2006) 
-------------------------------------------

** Bug
    * [HHH-1668] - PersistentSet write methods mark collection as dirty even if entry is not written
    * [HHH-1714] - Session.get() behavior
    * [HHH-1891] - Since rc3 deprecation Warning: The syntax 'TYPE=storage_engine' is deprecated and will be removed in MySQL 5.2.

** Improvement
    * [HHH-2093] - PERSIST_ON_FLUSH ineffective for recursive object graphs
    * [HHH-2103] - Rolling back 'SELECT is mandatory' on JPA strict compliance

** Task
    * [HHH-1931] - verify that the instrument tasks actually work


Changes in version 3.2.0.cr4 (24.08.2006)
-------------------------------------------

** Bug
    * [HHH-1293] - java.lang.NoSuchMethodError: <persistent class>.getHibernateLazyInitializer()
    * [HHH-1677] - optimistic-lock="dirty|all" is ignored at delete time
    * [HHH-1710] - persistent collections with property-ref to secondary tables cannot be joined in HQL
    * [HHH-1713] - AbstractEntityPersister causes an exception when a row in a joined table is missing with fetch="select"
    * [HHH-1740] - Build-time instrumentation breaks lazy="proxy"
    * [HHH-1750] - Exception ORA-01000 too many open cursors by generated="insert"
    * [HHH-1806] - No Dialect mapping for JDBC type: 3
    * [HHH-1848] - A session.lock generates a query with a version column in a joined subclass which does not exist
    * [HHH-1892] - finish HHH-1789 for ordered and sorted collections
    * [HHH-1898] - With hibernate 3.2.0-cr3 there is an hql parsing error on a one-to-one relation
    * [HHH-1924] - ForeignKeys: TransientObjectException is thrown without a message because of a wrong bracket in the code
    * [HHH-1927] - persist() and then merge() not handled correctly for multiple entity instances representing the same logical state
    * [HHH-1937] - Proxy creation failure leads to NPEs
    * [HHH-1943] - PersistenceContext not checked to see whether the associated entity is transient or not
    * [HHH-1944] - generated subqueries and jpaql compliance (derived select clause) check
    * [HHH-1947] - OF part of MEMBER  OF is optional
    * [HHH-1948] - Query Idetification variables are case insensitive in JPA
    * [HHH-1949] - having trim(BOTH from c.name) translated into having ltrim(rtrim(BOTH)) on DB2
    * [HHH-1954] - Proxies are never unassociated (evicted) from a session
    * [HHH-1958] - session.lock(LockMode.FORCE) can lead to NPE
    * [HHH-1963] - meta inheritance broken
    * [HHH-1992] - Some cascade actions should not trigger a property access on lazy properties
    * [HHH-2001] - javaassist does not setup the proper protection domain thus does not work with signed/secured deployments such as webstart
    * [HHH-2015] - where= does not set parenthesis leading to unexpected query when multiclause are used
    * [HHH-2017] - locate function defined on Oracle9Dialect is incorrect
    * [HHH-2022] - property names beginning with underscores cause Hibernate to generate invalid aliases

** Improvement
    * [HHH-1470] - Enhance Hibernate-Mapping DTD Definition of type element
    * [HHH-1934] - logging NonUniqueObjectException and WrongClassException
    * [HHH-1941] - Be more specific about x not found and invalid mapping exceptions to allow tools to tell about it
    * [HHH-1968] - unify bytecode instrumentation
    * [HHH-1980] - disallow the mapping combination of <version/> and optimistic-lock
    * [HHH-2005] - more standard build script
    * [HHH-2023] - performance optimization of JTATransactionFactory.isTransactionInProgress()

** Patch
    * [HHH-1271] - When using Stored Procedure for update or delete, the check is not done correctly.

** Task
    * [HHH-1931] - verify that the instrument tasks actually work


Changes in version 3.2 cr3 (06.07.2006)
-------------------------------------------

** Bug
    * [HHH-1452] - Native SQL query is missing join if entity includes many-to-one on secondary table
    * [HHH-1507] - one-to-one can have formula or meta but not both of them.
    * [HHH-1552] - Error when using ?1 and parameterList
    * [HHH-1586] - ClassCastException in CollectionType.toLoggableString if using CustomCollectionType
    * [HHH-1732] - EhCache.toMap still assumes Serializable objects
    * [HHH-1734] - Connection leak when using hilo strategy in SE environment
    * [HHH-1741] - Bug in reference documentation
    * [HHH-1746] - NullPointerException at IdentNode.resolveAsNakedComponentPropertyRefLHS(IdentNode.java:195
    * [HHH-1748] - Setting a comment that contains a single quote on a query results in an unintuitive exception
    * [HHH-1763] - Bug in InputStream org.hibernate.util.ConfigHelper.getResourceAsStream(String resource)
    * [HHH-1791] - property update="false" ignored since 3.2.0.cr2
    * [HHH-1816] - serializing session from a named session factory to a different vm broken
    * [HHH-1822] - flushing entity linked to transient instance (non cascaded) should always fail
    * [HHH-1828] - registering a transaction marked for Rollback is illegal
    * [HHH-1833] - Not Generating HibernateException
    * [HHH-1838] - Wrong SQL generated for hql query on "any" relation
    * [HHH-1855] - booleans not properly handled in assignment clause of UPDATE statements
    * [HHH-1858] - wrong sql generated against many-to-any association table
    * [HHH-1871] - query type autodiscovery assume wrong column when mixing entities and scalars

** Deprecation
    * [HHH-1792] - Callable update/insert/delete statements should not force rowcount out parameter

** Improvement
    * [HHH-1617] - Check the second-level cache before adding a PK to a batch fetch
    * [HHH-1773] - Typo in ImprovedNamingStrategy
    * [HHH-1779] - Allow Session.remove() on transient object
    * [HHH-1789] - improve efficiency of collection initialization from L2 cache hits
    * [HHH-1795] - default cache provider to NoCacheProvider
    * [HHH-1796] - TreeCache based providers and Fqn
    * [HHH-1800] - session.get() / load() should raise exception when the id is of the wrong type
    * [HHH-1818] - remove() should force subsequent contains() calls to return false
    * [HHH-1831] - Batch loading the same EntityKey (one side of manytoone ) more than once
    * [HHH-1861] - More complete component handling in HQL
    * [HHH-1881] - introduce LoggableUserType interface

** New Feature
    * [HHH-1709] - Be able to raise ENFE rather than LIE in proxies
    * [HHH-1727] - Add a SQLFunctionRegistry
    * [HHH-1817] - Introduce setting for JPA-QL strict compliance
    * [HHH-1826] - Built-in type for char[] -> VARCHAR Byte[] and Character[]

** Patch
    * [HHH-1558] - Dialect for new database engine H2
    * [HHH-1847] - QBE 'like' clause with backslashes don't work with MySQL

** Task
    * [HHH-1839] - rename FlushMode.NEVER -> FlushMode.MANUAL


Changes in version 3.2 cr2 (05.05.2006)
-------------------------------------------

** Bug
    * [HHH-1114] - The first (HSQL) Hibernate Application doesn't work as expected due to lack of database shutdown
    * [HHH-1175] - Exception when loading inheritance mapping in single file
    * [HHH-1560] - PropertiesHelper.resolvePlaceHolders() fails with non-String values in System properties
    * [HHH-1620] - Errors on max_lo <=1 boundaries
    * [HHH-1625] - Hibernate.isPropertyInitialized() returns false on instrumented transient object
    * [HHH-1648] - Exception while resuming a transaction is silently eaten
    * [HHH-1674] - Configuration serialization error: filterDefinitions map not serializable
    * [HHH-1695] - subsequent calls to non-existent proxy causes NPE

** Improvement
    * [HHH-1266] - StatelessSession can implement refresh
    * [HHH-1414] - many-to-many and metadata order-by based on column from the target table
    * [HHH-1477] - Improve naming strategy for ANN-195
    * [HHH-1538] - aggregations functions in EJBQL queries does not return the appropriate types
    * [HHH-1670] - Update EhCache and EhCache provider to support EhCache 1.2
    * [HHH-1704] - Deduplicate unique constraints generation sharing the same column(s)

** New Feature
    * [HHH-870] - support SQL updates in named queries
    * [HHH-1591] - Replace LazyInitializationException by EntityNotFoundException
    * [HHH-1719] - Provide a ClassTransformer interface to the BytecodeProvider


Changes in version 3.2 cr1 (27.03.2006)
-------------------------------------------

** Bug
    * [HHH-1453] - Broken exception handling in NullableType

** Improvement
    * [HHH-227] - remove reflection optimizer
    * [HHH-587] - Make ResultTransformer available for all query methods
    * [HHH-1588] - delay inserts for insert-generated-identifiers outside transaction
    * [HHH-1590] - redesign how PostInsertIdentifierGenerators are handled at insertion
    * [HHH-1592] - allow SelectGenerator to use a defined natural-id (if one)

** New Feature
    * [HHH-332] - create ability to add resulttransformer to HQL query
    * [HHH-1179] - support inline sequence id generation on Oracle using RETURNING clause


Changes in version 3.2 alpha2 (15.03.2006)
-------------------------------------------

** Bug
    * [HHH-535] - properties element causes exception in interface/abstract class
    * [HHH-1325] - ArrayOutOfBounds expected in DatabaseMetadata.isTable when specifing schema
    * [HHH-1435] - many-to-one lazy seems to be broken in 3.1.x
    * [HHH-1531] - NPE with many-to-many and property-ref
    * [HHH-1546] - generated version properties fail with multiple actions per flush

** Improvement
    * [HHH-1540] - Better Error Feedback In CollectionEntry.postFlush(PersistentCollection)
    * [HHH-1555] - ConnectionReleaseMode.AFTER_STATEMENT and flushes
    * [HHH-1559] - introduce TransactionFactory.isTransactionInProgress to facilitate EJB3 joinTransaction handling


Changes in version 3.2 alpha1 (28.02.2006)
-------------------------------------------

** Bug
    * [HHH-687] - Exception QuerySyntaxError not really serializable
    * [HHH-1236] - Remove static reference to classloader, to avoid memory leak at webapp reload
    * [HHH-1287] - Problem with WAS ExtendedJTATransaction not available when using MDB
    * [HHH-1419] - Update + Exists doesn't seem to work
    * [HHH-1445] - SchemaUpdate closes shared ConnectionProvider
    * [HHH-1464] - QueryException from Query.getReturnAliases when query uses "fetch"
    * [HHH-1486] - Concurrent access issues with both SoftLimitMRUCache and SimpleMRUCache
    * [HHH-1508] - Session.createQuery() should not flush the session

** Improvement
    * [HHH-1411] - Collection fetches and DISTINCT
    * [HHH-1412] - Collection fetches and firstResult/maxRows
    * [HHH-1416] - LockMode.FORCE to implement EJB3 LockModeType.WRITE
    * [HHH-1457] - support new optimisitc locking capabilities of JBossCache
    * [HHH-1466] - better handling of Antlr exceptions
    * [HHH-1516] - support DataDirect standard jdbc stored procedures
    * [HHH-1518] - Guarentee LockMode behaviors
    * [HHH-1520] - with clause with implied joins within an explicit join
    * [HHH-1526] - Improved DTDEntityResolver

** New Feature
    * [HHH-1251] - Avoid replicating the clearing of TreeCache on SessionFactory..close()
    * [HHH-1410] - FlushMode.AUTO -> COMMIT when outside a transaction
    * [HHH-1447] - pluggable bytecode libraries


Changes in version 3.1.2 (27.01.2006)
-------------------------------------------

** Bug
    * [HHH-73] - Statistics for HQL queries use pre-processed query string
    * [HHH-1306] - HQL parsing problem with join fetching of arrays/collections of values
    * [HHH-1370] - Warning in hibernate-mapping-3.0.dtd
    * [HHH-1371] - MappingException is thrown when the same column is referenced with different case
    * [HHH-1386] - Numeric (long) literals not properly handled by HQL parser
    * [HHH-1390] - Session.isOpen() throws exeception when the session is closed with ThreadLocalSessionContext
    * [HHH-1391] - Invalid parameter index SQLException when using named parameters after positional parameters
    * [HHH-1392] - Proxies cannot be serialized after session is closed
    * [HHH-1398] - extends and entity-names broken with mapping-level package attribute
    * [HHH-1407] - return-join broken for entity collections

** Improvement
    * [HHH-1364] - Defensive check of isClosed when obtaining a connection from ConnectionManager
    * [HHH-1367] - warn level log "this operation breaks ==" may be disturbing

** New Feature
    * [HHH-1372] - Support for MySQL5 new varchar length

** Patch
    * [HHH-1005] - Criteria LEFT JOIN capability when adding Order to associations

** Task
    * [HHH-1373] - Document update versioned


Changes in version 3.1.1 (13.01.2006)
-------------------------------------------

** Bug
    * [HHH-853] - DML-style HQL queries and associations
    * [HHH-1281] - FORWARD_ONLY ScrollableResults#next() throw GenericJDBCException
    * [HHH-1286] - Set entity in HQL query without prefix -> incorrect SQL
    * [HHH-1308] - Session.createFilter(...).iterate() results in bogus column names for result set extraction
    * [HHH-1314] - float/double literals not sent to the database correctly
    * [HHH-1316] - SchemaUpdate : java.sql.SQLException: You cannot commit during a managed transaction!
    * [HHH-1328] - org.hibernate.util.SimpleMRUCache keeps a soft reference to the cache key, so cached values get collected prematurely
    * [HHH-1336] - ForeignGenerator does not handle transient entities with an entity-name properly
    * [HHH-1337] - Mapped <component> generated column names incorrect with ImprovedNamingStrategy
    * [HHH-1349] - HQL delete statement problem due to oracle lacking table aliases in delete clause
    * [HHH-1361] - creating temporary table for bulk delete will commit current transaction in managed environment such as J2EE

** Improvement
    * [HHH-1019] - Native SQL return-property mapping doesn't support dot-syntax in return-property for components
    * [HHH-1290] - Defensive checking of session status
    * [HHH-1302] - query.getReturnTypes inconsistent
    * [HHH-1304] - better handling of borrowed connections in non-ON_CLOSE release semantics
    * [HHH-1309] - schemaupdate does not handle TableHiLoGenerator
    * [HHH-1339] - empty property name in mapping file gives imcomprehensible error message
    * [HHH-1344] - ANSI-SQL trim function for SQLServer
    * [HHH-1345] - ANSI-SQL mod function for SQLServer
    * [HHH-1346] - ANSI-SQL bit_length function for SQLServer
    * [HHH-1351] - <return-scalar name="blah"/> should be possible
    * [HHH-1360] - set autodiscovery flag for SQLQueries when resultsetmappings are used


Changes in version 3.1  (12.12.2005)
-------------------------------------------

** Bug
    * [HHH-849] - Cartesian product + implicit joins
    * [HHH-1065] - user provided connection not usable by default due to agressive release changes
    * [HHH-1101] - associations join fetched in HQL without owner being selected
    * [HHH-1133] - Comparators, defined for collections in mapping files, are not set
    * [HHH-1149] - NPE flushing reattached entity  w/ non-mutable natural-id
    * [HHH-1170] - HQL 'cast' function doesn't work with MySQL 4 when casting to string
    * [HHH-1187] - Cannot delete a object having a delete-orphan collection when user_rollback_id is set
    * [HHH-1191] - HQL fails backward compatibility using classic translator
    * [HHH-1194] - hql delete statements with joined-subclass hierarchies with a mapped where attribute at the root
    * [HHH-1206] - Mappings.TableDescription is not serializable
    * [HHH-1212] - mismatch in entity-modes defined in DTD and EntityMode class
    * [HHH-1227] - ClassCastException on DOM4J replicate of Calendar property
    * [HHH-1239] - BinaryArithmeticOperatorNode.getDataType() does not properly handle date/time arithmetic
    * [HHH-1240] - Track connection leakage in JDBCContext.afterTransactionCompletion()
    * [HHH-1245] - Calling the Session should register it with the current JTA txn.
    * [HHH-1254] - Serialization of Sessions using JDBCTransactions with auto-flush/auto-close

** New Feature
    * [HHH-1222] - Autodiscover scalar types in native-sql
    * [HHH-1243] - allow placeholders to system properties in config properties
    * [HHH-1244] - Support for MySQL5 stored procedures
    * [HHH-1260] - Configuration.mergeProperties()

** Task
    * [HHH-1066] - Upgrade CGLIB to fix proxy memory leak
    * [HHH-1242] - upgrade ANTLR to 2.7.6rc1

** Improvement
    * [HHH-860] - insert ... select ... and version numbers
    * [HHH-926] - TypeDef should be global
    * [HHH-1138] - No ConstraintName when using PostgreSQL
    * [HHH-1144] - Implement naming convention for temporary test failures
    * [HHH-1153] - PropertiesHelper fails reading primitive values from hibernate-mapping when doc has whitespace
    * [HHH-1182] - Access to filter metadata
    * [HHH-1183] - Getting sql "plan" for DML operations
    * [HHH-1197] - Support for HQL delete on MaxDB
    * [HHH-1198] - post-insert event pass the entity wo the id field filled when the generator is identity
    * [HHH-1213] - make JACC event listeners auto configurable (through initialize(Configuration))
    * [HHH-1215] - Added support for LVARCHAR in InformixDialect
    * [HHH-1218] - Add concat() function support to SAPDBDialect
    * [HHH-1255] - ThreadLocalSessionContext and Session serialization

** Patch
    * [HHH-967] - executeUpdate on StatelessSession
    * [HHH-1172] - Missing configuration templates for the new MimerSQLDialect

** Deprecation
    * [HHH-1229] - deprecate ability for entities to not define identifier properties


Changes in version 3.1 rc3  (17.11.2005)
-------------------------------------------

** Bug
    * [HHH-755] - Setter / Getter for property gDate are wrong
    * [HHH-764] - XML mapping
    * [HHH-1034] - The connection is closed  *outside* the JTA transaction in TransactionHelper
    * [HHH-1062] - java:comp/UserTransaction not correct for JBoss
    * [HHH-1064] - Exception using JTATransaction in WebSphere 6
    * [HHH-1069] - Unnecessary commas generated in select with left outer joins
    * [HHH-1075] - New parser  "not exists" command bug
    * [HHH-1077] - Typo in docs: "equiped"
    * [HHH-1080] - HQL delete fails on entities with where-fragments using operators other than '='
    * [HHH-1081] - missing parens in example code for Criteria Associations
    * [HHH-1084] - incorrect method name "sql" in Restrictions example, should be "sqlRestriction"
    * [HHH-1091] - Can't write transparent CurrentSessionContext for BMT
    * [HHH-1098] - Patch for build.sh to be able to build latest version on linux
    * [HHH-1106] - HQL "not in" generatad wrong SQL
    * [HHH-1111] - JDBCTransaction.rollback() results in a call to Interceptor.beforeTransactionCompletion()
    * [HHH-1128] - Column alias clashes under  certain circumstances
    * [HHH-1146] - latest cvs(11/10/05)  hibernate3 issue with classic query
    * [HHH-1156] - StatefulPersistenceContext not serializable when property-ref is used
    * [HHH-1160] - Incorrect use of getGeneratedKey() for Oracle

** New Feature
    * [HHH-449] - korean hibernate reference manual
    * [HHH-1129] - use expected-type in 'untyped' Query.setParameter()

** Improvement
    * [HHH-221] - Proxy for one-to-one with property-ref
    * [HHH-844] - move parameter "bookkeeping" into QueryTranslator
    * [HHH-1051] - "Compiled" native SQL queries are not cached
    * [HHH-1061] - import.sql should allow more human readable and usable files
    * [HHH-1078] - <dynamic-component> requires type on property
    * [HHH-1120] - Make NamingStrategy to work nicely with HA and EJB3 naming strategy
    * [HHH-1142] - added getSelectSequenceNextValString() and getCurrentTimestampSelectString() to TimesTenDialect

** Patch
    * [HHH-1063] - support for 'locate' function in SQLServer and Sybase dialects
    * [HHH-1090] - Allow subqueries on criteria to obtain non-string results
    * [HHH-1095] - Hibernate takes incorrect HasCode when a lot of CompositeKeys and Lazy loading is involved
    * [HHH-1103] -  finalize method filter for proxies
    * [HHH-1136] - more meaningful AssertionFailure message in org.hibernate.persister.entity.JoinedSubclassEntityPersister.getTableId(...)


Changes in version 3.1 rc2  (17.10.2005)
-------------------------------------------
** Bug
    * [HHH-1045] - Example contains inner classes that aren't serializable
    * [HHH-1055] - optimistic-lock is not inherited from class to subclass et.al.

** Improvement
    * [HHH-702] - auto detect aliasing for collection properties (coll.key, coll.id etc.)
    * [HHH-1038] - make 'auto' the default for hibernate.connection.release_mode
    * [HHH-1042] - determine "expected type" of parameters during HQL parsing


Changes in version 3.1 rc1  (07.10.2005)
-------------------------------------------
** Bug
    * [HHH-528] - component.manyToOne.id in HQL causes join
    * [HHH-871] - Configuration.setListener(String type, Object listener) throws ClassCastException
    * [HHH-873] - referencing raw HQL FromElement alias outide the from clause of update and delete statements generates incorrect sql
    * [HHH-876] - PreparedStatement being closed before being executed by AbstractBatcher
    * [HHH-884] - SchemaExport does not propagate parent indexes to <union-subclass> tables
    * [HHH-887] - Aggressive release and Session.connection()
    * [HHH-893] - custom tuplizer are not instantiated for components
    * [HHH-905] - $PlaceHolder$ remains in generated SQL when filter is enabled
    * [HHH-907] - optimistic-lock="false" for timestamped object results in SQLException: Invalid column index
    * [HHH-908] - CLONE -NullPointerException when using BigInteger in a query
    * [HHH-911] - CGLIBLazyInitializer and Exceptions
    * [HHH-913] - NPE in CMTTransaction since javax.transaction.Transaction is never set
    * [HHH-918] - impossible to move objects to another session
    * [HHH-924] - Useless OracleErrorCodeConverter (and possibly others)
    * [HHH-932] - HQL UPDATE and <union-subclass>
    * [HHH-946] - QuerySyntaxException might not be serializable
    * [HHH-964] - ORA-00936 with joined subclass / Oracle
    * [HHH-986] - Need to check Thread.currentThread().getContextClassLoader() in ConfigHelper
    * [HHH-991] - Cannot use comparator class
    * [HHH-1000] - varchar(xxx char) not supported on Oracle8i

** New Feature
    * [HHH-950] - interface for SessionFactory.getCurrentSession() handling


** Improvement
    * [HHH-608] - update HSQLDialect for HSQL 1.8 sequence support
    * [HHH-889] - Add read-only cache-mode comment in <query and <sql-query
    * [HHH-898] - OracleDialect UTF8 varchar2
    * [HHH-909] - Onquoted primary key in IncrementGenerator
    * [HHH-988] - generated="never|insert|always"
    * [HHH-989] - add discussion of implicit and explcit joins
    * [HHH-1011] - Make disconnect/reconnect of a Session implicit

** Patch
    * [HHH-994] - Sybase/SQLServer support for temporary tables


Changes in version 3.1 beta 3  (13.09.2005)
-------------------------------------------
** Bug
    * [HHH-528] - component.manyToOne.id in HQL causes join
    * [HHH-871] - Configuration.setListener(String type, Object listener) throws ClassCastException
    * [HHH-873] - referencing raw HQL FromElement alias of update and delete statements
    * [HHH-876] - PreparedStatement being closed before being executed by AbstractBatcher
    * [HHH-884] - SchemaExport does not propagate parent indexes to <union-subclass> tables
    * [HHH-887] - Aggressive release and Session.connection()
    * [HHH-893] - custom tuplizer are not instantiated for components
    * [HHH-905] - $PlaceHolder$ remains in generated SQL when filter is enabled
    * [HHH-907] - optimistic-lock="false" for timestamped object results in SQLException: Invalid column index
    * [HHH-908] - NullPointerException when using BigInteger in a query
    * [HHH-911] - CGLIBLazyInitializer and Exceptions
    * [HHH-913] - NPE in CMTTransaction since javax.transaction.Transaction is never set
    * [HHH-918] - impossible to move objects to another session 
    * [HHH-924] - Removed ErrorCodeConverters
    * [HHH-946] - QuerySyntaxException might not be serializable

** Improvement
    * [HHH-898] - OracleDialect UTF8 varchar2
    * [HHH-909] - Unquoted primary key in IncrementGenerator


Changes in version 3.1 beta 2 (16.08.2005)
-------------------------------------------
** Bug
    * [HHH-477] - Boolean discriminators generate invalid SQL for PostgreSQL dialect
    * [HHH-480] - SchemaExportTask ignores some properties not defined in hibernate.properties
    * [HHH-615] - SchemaExport outputFile ignores ant's basedir
    * [HHH-770] - hql query execution generates invalid SQL
    * [HHH-779] - Assertion failure occured with Hibernate 3 saving objects
    * [HHH-781] - SimpleExpression ignorecase regression
    * [HHH-799] - merge() and embedded composite identifiers
    * [HHH-801] - subselect fetch and named parameters
    * [HHH-802] - querying "mapped" composite identifiers
    * [HHH-803] - no version increment from delayed collection adds
    * [HHH-805] - Session.getStatistics().getEntityCount() throws UnsupportedOperationException
    * [HHH-819] - Firebird CONCAT SQL function
    * [HHH-821] - query by natural-id cache is not update when object is inserted or deleted
    * [HHH-822] - <key-property> will actually pick up <type> tags if it were allowed by the DTD
    * [HHH-825] - ReadWrite-Cache issues NullPointerException after modification of an array
    * [HHH-839] - Session.refresh not working for custom 'Load' SQL
    * [HHH-849] - Cartesian product + implicit joins
    * [HHH-854] - Class with mapped composite id can't have subclasses
    * [HHH-858] - Autocommit status inconsistent in connections created by DriverManagerConnectionProvider
    * [HHH-863] - Hibernate generates "notExists" instead of "not exists"
    * [HHH-868] - Missing parens after / or -

** New Feature
    * [HHH-35] - add attribute haltonerror to schemaexport Ant task
    * [HHH-182] - Mimer SQL Dialect for Hibernate 3
    * [HHH-704] - Statistics for optimistic lock failures
    * [HHH-725] - Allow hooks into all executed sql by a session
    * [HHH-783] - collection lazy="extra"
    * [HHH-818] - Optimisitc locking using database current timestamp
    * [HHH-828] - session.getTransaction()
    * [HHH-829] - <cache include="all|non-lazy" ... />
    * [HHH-831] - allow database generated property values
    * [HHH-832] - allow database generated property values for versioning
    * [HHH-838] - Transaction.setTimeout()
    * [HHH-840] - allow definition of "auxiliary" database objects in mapping
    * [HHH-846] - Add Intializable interface for events
    * [HHH-848] - Validate mappings against JDBC metadata
    * [HHH-859] - post-commit events

** Improvement
    * [HHH-133] - schemaexport task: provide independent drop/create output
    * [HHH-135] - parameterized types can't be used on key-property or ir (possible others)
    * [HHH-552] - NoopAccessor for HQL-only properties
    * [HHH-680] - Easier support for doing UserCollectionType's
    * [HHH-686] - Final classes and classes with private null ctors cause unhelpful NullPointerException
    * [HHH-754] - Allow HQL DML for implicit polymorphism
    * [HHH-782] - Avoid unnecessary updates when component property is update='false' but modified
    * [HHH-786] - Improve lazy options for <one-to-one>
    * [HHH-791] - Use cascade styles when fetching entities in refresh() and merge()
    * [HHH-815] - Confusing use of the term "dereference"
    * [HHH-830] - Improvements to caching lazy properties

** Patch
    * [HHH-378] - Better LockMode.UPGRADE for DB2 UDB v8.2
    * [HHH-430] - Improved SizeExpression with greater, lesser, not equals, etc. capabilities
    * [HHH-735] - SchemaUpdate reads table metadata from wrong schema
    * [HHH-780] - org.hibernate.proxy.BasicLazyInitializer reflection hotspot
    * [HHH-864] - Use QUERY_CACHE for sessions with filters to improve performance


Changes in version 3.1 beta 1 (21.07.2005)
-------------------------------------------

** Bug
   * [HHH-145] - union-subclass and oracle 8i
   * [HHH-374] - EJB3 example delete query doesn't work in Hibernate.
   * [HHH-447] - EHCache integration prevents multiple session factories
   * [HHH-488] - JACCListeners are not working at all
   * [HHH-564] - missing commas for implicit joins
   * [HHH-577] - joins within subqueries on dbs supporting ansi-joins result in extraneous commas
   * [HHH-592] - cast() function doesn't know its returned Hibernate type
   * [HHH-639] - CGLIB instrumentation of subclasses
   * [HHH-658] - Bug in Alias Name Generation
   * [HHH-671] - Firebird support of sequences/generators
   * [HHH-679] - setLockMode(LockMode.UPGRADE_NOWAIT) does not translate to correct SQL on Oracle
   * [HHH-688] - Bad implementation in org.hibernate.type.CustomType.stringToObject
   * [HHH-691] - generated column alias is incorrect if there is a prior relationship and the table column names are similar to the table name
   * [HHH-694] - NPE when accessing the SLCache stats with TreeCache
   * [HHH-698] - Exception on EG , trying to change immutable id (natural-id)
   * [HHH-699] - Incorrect Tablename genetaion when using MySQL Dialect and no Schema definition
   * [HHH-708] - Restrictions.in could not be used properly on composite-ids
   * [HHH-709] - ArrayType.replaceElements fails if original.length != target.length
   * [HHH-718] - HQL "fetch all properties" not working for column level lazy props
   * [HHH-726] - ConstraintViolationException with primitive collection
   * [HHH-727] - java.lang.StackOverflowError when cascade="true" on both sides of bidirectional one-to-one association using FK
   * [HHH-734] - HQL incorrectly parses certain query strings
   * [HHH-736] - Use of sql functions containing space not supported in filter conditions
   * [HHH-738] - formula property with select-before-update
   * [HHH-747] - Order.toSQLString generates incorrect statement
   * [HHH-748] - component dereferencing in subquery from clauses
   * [HHH-752] - Typo in 8.5.3 bidirectional one-to-one jjoin table example
   * [HHH-757] - NullPointerException when using BigInteger in a query

** New Feature
   * [HHH-595] - HQL insert select
   * [HHH-597] - Named XML resultsetmappings
   * [HHH-696] - handle discriminators on HQL insert
   * [HHH-697] - allow bumping versions in HQL update
   * [HHH-716] - handle version columns in bulk inserts
   * [HHH-723] - Need to be able to pass in javax.sql.DataSource in SF creation
   * [HHH-739] - Order.ignoreCase()
   * [HHH-741] - select clause subselects
   * [HHH-742] - Stateless session
   * [HHH-744] - collection fetching in scroll() via "break processing"
   * [HHH-768] - <many-to-many property-ref=".."/>

** Improvement
   * [HHH-14] - Add Session.delete(String entityName, Object entity)
   * [HHH-295] - cleanup and expose the Tuplizers
   * [HHH-352] - HQL bulk and cache
   * [HHH-689] - exclude parens for components outside where-clause
   * [HHH-743] - {coll.key}, {coll.index}, {coll.element}, etc
   * [HHH-745] - EJB3 composite PK style
   * [HHH-749] - Cascade merge() and unidirectional one-to-many
   * [HHH-750] - use attribute name other than 'type' in dynamic-maps
   * [HHH-753] - Replace antlr System.exit with QueryException
   * [HHH-769] - property-ref="foo.bar" to a component property
   * [HHH-772] - null in maps are handled inconsistently
   * [TODO-18] - optimistic-lock="all|dirty" with components


Changes in version 3.1 alpha 1 (24.06.2005)
------------------------------------
** Bug
    * [HHH-204] - Wrong/uncommon log name in class ...hql ast ErrorCounter
    * [HHH-241] - HQL lexer doesn't support unicode quoted strings
    * [HHH-354] - property named "full" breaks HQL queries
    * [HHH-493] -  WARNING: Keyword 'member' is being intepreted as an ident
    * [HHH-538] - length() function does not work in SQLServerDialect
    * [HHH-539] - ClassCastException on mapping a property with a formula in a set of composite elements
    * [HHH-540] - Mapping a one-to-many collection with a non-null foreign key within a component fails on save
    * [HHH-547] - Cannot commit using UserCollectionType and debug logging
    * [HHH-548] - many-to-many faulty delete optimization when filter in use
    * [HHH-554] - Hibernate 3 HQL to SQL FROM Clause Comma Generation Problem
    * [HHH-558] - HQL doesn't support multi-byte character in class name and property names
    * [HHH-559] - quoted multi-byte character in HQL is translated into weird character in SQL.
    * [HHH-565] - delete-orphan generating AssertionFailure
    * [HHH-566] - The result is not correct in  'createQuery("select new Foor(x,x) from Foo").scroll()'
    * [HHH-570] - size operator fails on a many to many in HQL
    * [HHH-571] - JDK 1.3 Compatibility Issue
    * [HHH-573] - error when merging entity graph has cascade level>2
    * [HHH-575] - org.hibernate.cache.FilterKey is not Serializable
    * [HHH-589] - parameterized expression inside function
    * [HHH-594] - order-by mapping for collections overrides order by in HQL
    * [HHH-601] - New temporary table feature assumes all persisters are ready
    * [HHH-614] - SchemaUpdate broken in DB2/400
    * [HHH-622] - Spelling mistake 'intepreted' in org.hibernate.hql.PARSER warning
    * [HHH-642] - criterias with projection
    * [HHH-650] - FilterImpl is Serializable yet FilterDefinition is not
    * [HHH-657] - Date parse exception using EntityMode.DOM4J
    * [HHH-666] - JTAHelper.isInProgress( txn.getStatus()) throws NPE when txn null

** New Feature
    * [HHH-620] - Extra join conditions in HQL
    * [HHH-640] - short-circuit dirty checking for instrumented classes
    * [HHH-643] - support mutable="false" for collections
    * [HHH-645] - Session.setReadOnly()
    * [HHH-549] - portable to_char() function
    * [HHH-576] - Hook to pre-process generated select strings in the Dialect
    * [HHH-662] - Add support for definition of functional composite key ("properties") in joined subclass

** Improvement
    * [HHH-46] - Allow access to properties that are not joined
    * [HHH-261] - Stored procedure support for SQLServer dialects
    * [HHH-351] - multi-table bulk operations
    * [HHH-574] - improve in naming named-query
    * [HHH-596] - Auto-detect {..} in native SQL queries
    * [HHH-641] - create constraints for many-to-one property-ref
    * [HHH-501] - warn when a final method is tried to be proxied
    * [HHH-525] - cglib related startup performance
    * [HHH-557] - Helpful error message for non Serializable classes with a composite-id
    * [HHH-586] - check immutable natural-ids
    * [HHH-609] - Adds substr to PostgreSQL dialect
    * [HHH-618] - documentation bugs

** Patch
    * [HHH-224] - JDataStore Dialect and updated Testfiles
    * [HHH-366] - InformixDialect SQLExceptionConverter
    * [HHH-536] - ImprovedNamingStrategy modifies capitalized column names inappropriately
    * [HHH-632] - Informix Dialect missing from automatic dialect discovery
    * [HHH-4] - CachedFile bugfix + configuration + autodetect resource as file


Changes in version 3.0.5 (25.5.2005)
------------------------------------

** Bug
    * [HHH-516] - Interceptor.onFlushDirty() sometimes not called
    * [HHH-517] - getDatabaseMajorVersion() not available in JDK 1.3
    * [HHH-518] - SQL parser does not recognize all whitespace
    * [HHH-519] - broken SQL when traversing many-to-many to joined <subselect>
    * [HHH-529] - Bug in merge()

** New Feature
    * added <natural-id> mapping
    * [HHH-533] - allow unique-key on <property> and <many-to-one>
    * [HHH-534] - efficient cache by natural key
    * support for <comment> on MySQL

** Improvement
    * [HHH-526] - log "Aggressively releasing JDBC Connection" as DEBUG instead of INFO
    * various logging improvements


Changes in version 3.0.4 (23.5.2005)
------------------------------------

** Bug
    * [HHH-452] - UnsavedValueFactory.instantiate does not wrap the Exception it catches
    * [HHH-456] - Session still holds references to entities after close()
    * [HHH-457] - Log info for structured second-level cache entries is incorrect
    * [HHH-466] - Made default for MS SQL dialect definition more flexible
    * [HHH-473] - Formula can't contain SQL cast keyword
    * [HHH-484] - Order-by not applied to collections fetched by OuterJoinLoader
    * [HHH-487] - Possible empty union in UnionSubclassEntityPersister
    * [HHH-505] - Possible NullPointerException in BigIntegerType
    * [HHH-507] - Cached List does not show additions
    * Fixed bugs in subselect fetching

** New Feature
    * [HHH-455] - Obtain non-intercepted Session by passing an EmptyInterceptor
    * [HHH-467] - HQL: support for case when then else end IN select clause
    * [HHH-485] - Support multiple collection join fetches (attention: Cartesian product) in native SQL queries
    * Added SessionStatistics metric interface
    * Added support for table and column level <comment> blocks
    * Added Simplified Chinese translation of reference documentation (Xiaogang Cao)

** Improvement
    * Any query may now join fetch >1 collection role (attention: Cartesian product)
    * [HHH-454] - Add 2292 integrityViolationCode to Oracle9Dialect
    * [HHH-503] - Implemented ViolatedConstraintNameExtracter for HSQLDialect (Frank Grimes)


Changes in version 3.0.3 (8.5.2005)
-----------------------------------
* fixed bug in HQL for composite key classes which have a property named the same as the owning entity's id property
* replaced 'connection.aggressive_release' with 'hibernate.connection.release_mode'
* added ConnectionReleaseMode
* added eager fetch for any associations with fetch=join, even after a HQL query, or cache retrieval (EJB3)
* added replicate() isUpdate flag to OnReplicateVisitor, useful for native ids
* fixed ParameterizedTypes order of initialization
* fixed bug in DB2Dialect
* fixed EntityMode.DOM4J creation of duplicate <set> output
* fixed JDBCException error code handling
* fixed Criteria Restrictions.isEmpty()/isNotEmpty() when collection is mapped to superclass
* fixed HQL indexed collections access with no alias
* fixed HQL aggregate functions on components when "id" property is used
* fixed issue with non-cascading refresh to collections
* fixed query-timeout not being applied to bulk HQL (Stephan Fudeus)
* fixed pessimistic locking with Firebird (Yuichi Sugimura)
* updated Ant 1.6.3
* improved validation of sql queries, throw QueryException if addEntity() nor addScalar() was called
* added automatic dialect detection if no dialect is configured
* added new tutorial (Michael Gloegl, Christian Bauer)


Changes in version 3.0.2 (27.4.2005)
------------------------------------
* fixed union operations on PostgreSQL
* fixed HQL concat() function for Oracle dialect
* fixed auto-close/auto-flush during getCurrentSession() processing
* fixed ClassCastException with EntityMode.DOM4J
* fixed HQL dynamic instantiation with iterate()
* fixed HQL bug with missing parantheses and implicit joins
* fixed bug were Interceptor.getEntity() wasn't called if in cache
* fixed bug in merge() of sorted sets
* fixed bug in EntityMode.DOM4J with non-lazy embedded many-to-ones
* fixed Criteria/Projection ordering bug
* fixed HQL referencing component attribute
* fixed column duplication detection for components
* fixed eager fetching for many-to-many associations
* fixed stack overflow with auto_close_session and aggressive_release and unclosed ScrollableResults/HibernateIterator
* fixed bug in HQL parser regarding naked property refs which reference component properties
* fixed bug with eager fetched arrays not being loaded
* fixed bug in filter against joined-subclass
* improved CacheMode.GET/IGNORE, disabled cache put
* improved HQL support for standard SQL functions, including coalesce() and nullif()
* improved filtering of many-to-many associations
* added HQL support for cast(x as type) if SQL database supports it
* added increment id generation for union-subclass
* added ConnectionProvider.supportsAggressiveRelease() for managed environments
* added support for caching of queries if filter is enabled
* added PreparedStatement count to Statistics
* added transactional/nontransactional read()/get() to Cache API
* added quotation of schema names
* added Distinct to Projection API
* added config parameter 'connection.aggressive_release'

Changes in version 3.0.1 (18.4.2005)
------------------------------------
* added HQL tuple constructor/comparison feature
* added HQL "fetch all properties" override if instrumentation is used for lazy loading
* added HQL projection feature, return Lists instead of arrays for projection
* added HQL projection feature, return Maps with user-defined HQL SELECT aliases as keys
* added HQL support for expressions in aggregation functions
* added new IntegrityViolationException to MySQL dialect
* added value mapping type 'big_integer'
* added not-found="ignore|exception" switch for legacy associations (i.e. broken database integrity)
* added fully automatic Session scoping in JTA environments with sf.getCurrentSession()
* fixed bug in DTD that wouldn't allow union-subclass in separate file
* fixed a MS SQL Server case sensitivity issue with native SQL queries
* fixed a minor bug in subselect fetching
* fixed case sensitivity in HQL functions
* fixed a bug with listener assignment for save() operation (Matthew Inger)
* fixed return-property in named SQL queries to work with all identifier names
* fixed TransactionManager lookup (again) for WAS 6.0
* fixed a bug with HQL batch delete and MS SQL Server
* fixed session not getting closed with auto_close when rollback occured
* improved concatentation handling in AST parser
* updated dom4j to avoid memory leak in old version
* updated C3P0


Changes in version 3.0 (31.3.2005)
----------------------------------
* added support for autoflush/autoclose to HibernateServiceMBean
* fixed initialization/session association detection problem of collections
* fixed creation of FK constraints to union superclass table
* fixed bug where union-subclass table did not get a PK constraint
* added a separate log category for HQL parser warnings and errors
* fixed bulk delete operation on MS SQL Server
* added support for proxying protected methods (Juozas)
* added support for unicode quoted strings in new HQL parser
* fixed implied joins in subselect WHERE clause in new HQL parser
* added SQLServer7Dialect to handle differences in functions
* added support for JNDI-bound cache instances, future use for JBoss Cache
* added scale attribute to column mappings for numeric precision control
* added fetch=subselect for collections
* added support for bulk update/delete against discriminator-based inheritence hierarchies
* added the ability to use naked property refs in HQL (required in update/delete statements)
* updated CGLIB 2.1.0
* fixed NPE at BasicEntityPersister.getPropertyIndex (Todd Nine)
* fixed issue with entity-name and subclasses (Sverker Abrahamsson)
* fixed issue with correlated subqueries in new HQL parser
* fixed a problem with native SQL query mapping and embedded composite identifiers
* improved mapping binding, allowing unordered extends for pure entity-name hiearchies
* fixed NPE for delete() with deprecated Lifecycle interface
* fixed a problem with serial joins ending in component value in new HQL parser
* fixed inner join/subselect precedence problem in new HQL parser
* fixed indices() function in new HQL parser
* fixed a bug in InformixDialect, now correct LIMIT clause
* fixed a bug in idbag.remove() (Sebastien Cesbron)
* fixed a conflict on OracleDialect between setMaxResult and LockMode.UPGRADE
* fixed XML configuration file issue with SchemaExport
* fixed an ArrayIndexOutOfBounds problem
* renamed executeUpate() to executeUpdate()
* fixed batch loading for property-ref entities
* fixed loading from cache of <key property-ref> collection owner
* fixed minor bug in SQL exception reporting
* fixed dynamic-component cannot be bound to XML
* fixed querying component with formula property
* fixed incorrect table alias for order-by on many-to-many
* fixed a bug for unidirectional one-to-many with moving child objects
* fixed a bug with union-subclasses and persister creation
* fixed a HQL concatenation problem on MySQL
* fixed a bug where an unnecessary exception was thrown for a property-ref to a superclass property
* fixed minor dtd bug
* fixed new bug in Clob/Blob support
* fixed issue with INDEX_OP and subclass joins on theta-join dialects
* fixed some minor issues in query cache regions, including HB-1449
* fixed superflous import and regression bug in verifyparameters
* fixed two bugs in select id generator (Malcolm Green)
* fixed increment generator for union-subclass mappings
* updated JBoss Cache to 1.2.1alpha, fixing locking issues
* made stat classes serializable
* fixed merge(), now ignores blob and clob fields
* added support/dialect for TimesTen
* improved algorithm for batch fetching, more aggressive
* improved toStrings()s for Statistics objects (Ryan Lynch)
* renamed <result-*> to <return-*> for externalized SQL query mapping
* renamed Session.openSession() for EntityMode to Session.getSession()
* added support for CASE in HQL
* fixed bug with filters and polymorphic queries
* fixed import ordering problem of super/subclass mappings
* switched to patched ANTLR 2.7.5, now using context classloader before doing class.forname
* TableHiloGenerator now falls back to TableGenerator properly with max_lo < 2 (Emmanuel Bernard)
* better transaction handling of TableGenerator in a JTA environment  (Emmanuel Bernard)
* removed hard coded log4j dependency (Emmanuel Bernard)
* added support for stored procedure in named queries (Max Andersen)
* added <property-result> to named SQL queries to allow users to use sql without {}-markup
* added multi-column property support to native SQL mapping

Changes in version 3.0rc1 (28.2.2005)
----------------------------------
* introduced EntityModes, and XML mapping preview
* several minor dialect improvements
* fixed a problem where filters were not applied to subclasses
* fixed a problem where InstrumentTask would fail if applied to already-instrumented classes
* fixed many problems with new parser and made it the default (thanks again to Joshua for the new parser)
* implemented bulk update/delete queries for the new parser
* fixed a minor bug in the classic query parser
* renamed create() to persist() as per EJB3edr2

Changes in version 3.0 beta 4 (11.2.2005)
-----------------------------------------
* support unidirection one-to-many with a not-null foreign key
* support formulas for index and element of collections
* support one-to-ones mapped to formulas
* fixed a bug in proxying methods that return "this"
* optimized proxies for embededded composite id classes
* fixed a bug affecting <key-many-to-one>
* fixed a bug caching newly inserted objects
* introduced DetachedCriteria
* support subselects in Criteria queries
* miscellaneous Criteria API enhancements
* fixed a problem where hibernate.max_fetch_depth applied to eager fetching via setFetchMode()
* use inner joins for join fetching not-null fk associations
* support unique="true" in <component> and <properties> mappings
* union-subclass hierarchies may own collections (dtd bug)
* added guid support for Oracle
* new mechanism for auto-detecting unsaved-value
* pass state array in delete events
* improved implementation of hibernate.auto_close_session and hibernate.close_before_completion
* fixed a bug where components with only collections would be incorrectly nullified
* fixed a bug where criteria queries with projection could not be cached
* fixed a problem where duplicate column name aliases could be generated

Changes in version 3.0 beta 3 (30.1.2005)
------------------------------------------
* Major rework of Criteria queries, support for projection, grouping, aggregation, ordering by any attribute
* various improvements to new HQL parser (Joshua Davis)
* fixed a bug where <join fetch="select"> was broken for subclasses with duplicated property names
* fixed problems with long types in Oracle DDL generation
* added EnhancedUserType, UserCollectionType, UserVersionType
* added CacheMode
* fixed minor performance problem where cascade delete could add objects to second-level cache
* added hibernate.default_batch_fetch_size
* added hibernate.cache.use_structured_entries
* different classes and collection roles may now share a cache region
* don't include discriminators for abstract classes in generated SQL
* it is no longer truly necessary for composite identifier classes to implement equals()/hashCode() (but still recommended)
* workaround for bug in MySQL InnoDB with self-referential foreign keys
* added lazy="true" to many-to-one and one-to-one mappings (requires bytecode instrumentation)

Changes in version 3.0 beta 2 (24.1.2005)
------------------------------------------
* added LockAcquisitionErrorCodes to MySQL dialect (Jesse Barnum, Emmanuel Bernard)
* added MultipleHiLoPerTableGenerator, one hi value per row/per table (compliant with EJB3)
* added a generator handling multiple hi values per table (Emmanuel Bernard)
* added events for pre/post SQL operation interception
* added experimental support for JACC-aware configuration and events
* added full support for implicit polymorphism in Criteria queries
* added support annotated classes through XML configuration (Emmanuel Bernard)
* added support for WebSphere's weird TxManagerLookup
* added support for filters with dynamic-class mappings
* added support for lists of parameters in filters
* added support for scalar queries in createSQLQuery (Michael Gloegl)
* added support for scalar results in native SQL queries (Michael Gloegl)
* fixed SchemaExport/SchemaUpdate, now respect default_schema and default_catalog (Michael Gloegl)
* fixed a bug in one-to-one mapping with property-ref
* fixed a bug in the query cache lookup routine
* fixed compilation problems on IBM JDK 1.4. and JDK 1.3.1
* fixed custom SQL for loading when using composite identifiers
* fixed exception thrown from optimistic locking failures
* fixed support for limit queries (select first ?) in Informix
* improved SchemaExport/Update, now respect default_schema and default_catalog
* improved dialect handling, throw an exception if no dialect has been set
* improved loading of mappings, no ordering of super/subclasses required anymore
* improved statistics for second-level cache
* improved table generators for hi/lo, can now be used in a JTA environment (Emmanuel Bernard)
* query engine: added support for 'trim([leading | trailing | both] [expression from] expression)'
* query engine: added support for DISTINCT and ALL
* query engine: added support for FETCH
* query engine: added support for HAVING count()
* query engine: added support for HQL NOT IN and EJBQL '[NOT] MEMBER OF'
* query engine: added support for ORDER BY COUNT(*)
* query engine: added support for collections of scalar values
* query engine: added support for literals in constructor select expressions.
* query engine: added support for select elements(..) from Foo f
* query engine: added support for template functions in the SELECT clause
* query engine: fixed NOT LIKE
* query engine: introduced EMPTY and added it to constant (support for IS [NOT] EMPTY)
* updated dom4j, OSCache, EHCache, JBoss Cache, Xerces, Xalan, and Log4j
* associated class where filter now applies to <one-to-one property-ref>

Changes in version 3.0 beta 1 (21.12.2004)
------------------------------------------
* reimplemented HQL using an ANTLR-based AST parser (Joshua Davis)
* added class="select" id generator
* added Query.setReadOnly()
* added hibernate.order_updates
* introduced cascade refresh
* added typed JDBC exceptions (Steve Ebersole)
* improved lifecycle for CacheProviders (Steve Ebersole)
* added Expression.isEmpty()
* fixed some minor mapping DTD bugs (Ben Sommerville)
* fixed auto-commit mode for SchemaUpdate
* added default-lazy to <hibernate-mapping>, which defaults to true!
* added fetch="join|select" and deprecated outer-join attribute
* fixed a bug where <custom-insert> was not used for entities with "identity" id generation
* fixed some problems with dynamic-class
* added property-level optimistic-lock attribute, to allow an unchecked property
* cascade lock() now cascades with LockMode.NONE
* fixed some bugs in filter handling (Steve Ebersole)
* added hibernate.transaction.flush_before_completion and hibernate.transaction.auto_flush_session
* added JSR-220 compliant create() and merge() operations
* cascade attribute is now multi-valued, with values save-update,create,merge,delete,delete-orphan,lock,evict,replicate,all-delete-orphan
* index and unique-key attributes may now be multi-valued
* introduced unsaved-value="undefined", the default for "assigned" ids and <composite-id>, which forces Hibernate to hit the db
* primitive typed <id> property mappings now default to unsaved-value="0"
* added ScrollMode
* added dialect for Derby (Simon Johnston)
* added MySQLMyISAMDialect and MySQLInnoDBDialect
* added precision and scale mapping attributes, for numeric types in DDL
* fixed a problem with duplicate column mappings on Sybase
* read-write cache now uses version numbers to ensure consistency with database, if available
* native SQL queries may now fetch a collection role (Steve Ebersole)
* added sequential-select, optional and inverse attributes to <join/>
* added <properties> element, which can be the target of a property-ref
* fixed a bug relating to composite property-refs
* Hibernate now much more robust if user does not implement equals()/hashCode() on id and unique key classes
* enabled batch deletes for versioned data
* fixed a minor bug in Session.close()
* removed uuid.string and renamed uuid.hex to plain uuid
* workaround for a MySQL bug in SchemaUpdate
* added JDBCException.getSQL() and made various improvements to exception flow
* createSQLQuery() now fully supports components
* fixed a bug in SQL generation for <joined-subclass> mappings
* fixed a bug where filter and query parameters could be bound in the wrong order (Steve Ebersole)
* fixed a problem where quantifiers could not appear in SQL fragments
* fixed a bug with dynamic components
* fixed a bug where Dialect default properties overrode user-specified properties (Ben Sommerville)
* fixed a bug where duplicate column name in a joined table caused an exception
* implemented two-phase load for dynamic components
* fixed a bug where cancelQuery() canceled a re-pooled statement
* deleted collections are now removed from session-level cache
* fixed a bug in LocaleType (Steve Ebersole)
* use "with rr" to obtain UPGRADE locks in DB2
* package attribute now significant for extends
* fixed a minor problem with Hibernate Clobs and Blobs
* extends attribute does no longer require specific ordering of mapping files

Changes in version 3.0 alpha (23.8.2004)
----------------------------------------
* package rename net.sf.hibernate -> org.hibernate
* checked exceptions are now runtime exceptions
* some session methods deprecated and moved to org.hibernate.classic.Session
* removed various deprecated functionality
* added Filter API and mappings, for temporal, regional and permissioned data (Steve Ebersole, Gavin King)
* support cascade delete via ON DELETE CASCADE constraint
* added extra attributes to named query definition
* added hibernate.use_identifier_rollback
* added subselect mappings
* added lazy="true" to property mappings
* added <join/> for multitable mappings
* added <union-subclass/> for table-per-concrete-class strategy
* added Statistics API and JMX MBean (Gavin King, Emmanuel Bernard)
* introduced new event-driven design (Steve Ebersole)
* support for faster startup with Configuration.addCachableFile() (Joris Verschoor, Max Andersen)
* mask connection password for log level greater of equals to info (Joris Verschoor, Emmanuel Bernard)
* add check of named queries when building SessionFactory (Joris Verschoor, Emmanuel Bernard)
* added custom EntityResolver setting capability (Emmanuel Ligne, Emmanuel Bernard)
* PropertyValueException for null values in not-null properties of components (Emmanuel Bernard)
* enhanced support for single- and no-argument sql-functions in HQL select clause (Michael Gloegl)
* Added catalog element, to enable table names like catalog.schema.table (Michael Gloegl)
* Added <sql-insert>, <sql-update> and <sql-delete> support (Max Andersen)
* Support callable statements (stored procedures/functions) via callable="true" on custom sql (Max Andersen)
* Added support for type parameters and typedefs (Michael Gloegl)
* Added support for JDBC escape sequences in createSQLQuery (Max Andersen)
* Added statistics per SessionFactory (Gavin King, Emmanuel Bernard)
* Added a StatisticsService MBean for JMX publucation (Emmanuel Bernard)
* support for updates via rownum in Oracle
* fixed problems with SchemaUpdate
* support for <column formula="..."/>
* added hibernate.use_sql_comments
* added property-ref to collection <key/>
* fixed performance problems with <one-to-one property-ref=.../>
* enhanced UserType with new methods assemble()/disassemble()
* better algorithm for batch fetch batch sizes
* added <dynamic-class>
* added entity-name concept, and session methods save(entityName, object), update(entityName, object), etc
* added framework in proxy package
* native SQL queries may now fetch a collection role
* added <loader/> for class and collection mappings
* added getEntity() and getEntityName() to Interceptor
* formula-based discriminators and association mappings
* added "guid" id generation strategy
* various improvements to dialects
* <discriminator force="true"/> now acts as a filter on collections
* where filters now apply in the on clause in an outer join
* added hibernate.jdbc.factory_class to select a custom batcher
* session now uses entity name + id to enforce uniqueness, instead of table name + id

Changes in version 2.1.6 (9.8.2004)
------------------------------------
* fixed Quickstart/readme.txt instructions
* fixed DB2/400 identity column support
* fixed the scroll() query method
* fixed exotic classloader problems with CGLIB
* added insert="false" for discriminator columns which are part of a composite identifier
* added several new configuration settings to JMX HibernateService
* added new instantiate() method to SessionFactory.getClassMetadata()
* improved the HSQL DB dialect with features from new version
* added hibernate.jdbc.batch_versioned_data (Steve Ebersole)

Changes in version 2.1.4 (2.6.2004)
------------------------------------
* improved Session serialization support by adding ability to serialize unflushed sessions (Steve Ebersole)
* fixed Session.clear() functionality to clear the internal nonExists cache (Steve Ebersole)
* much better implementation of scroll() (Steve Ebersole)
* support "select new ..." for iterate() and scroll() (Steve Ebersole)
* added support for multi-parameter SQL functions (Steve Ebersole)
* fixed hbm2ddl generating infinite indexes on MySQL (Michael Gloegl)
* fixed alias precedence in HQL queries, function names are second (Steve Ebersole)
* added "transactional" as allowed cache concurrency strategy in XML configuration file
* improved System.getProperties() with security exception warning in secure environments
* improved Proxool integration, better property handling
* fixed problem with use of getDefinedMethod() in secure environments (Ken Arnold)
* fixed bug in createSQLQuery() which prohibited multiple aliases for the same entity (Max Andersen)
* fixed query cache misses when using named bind parameters (Michael Greer)
* recognize "left" and "right as keywords in SQL fragments
* recognize SQL quoted identifiers in SQL fragments
* improved identity handling on SQL Server by using scope_identity() for update counts (Arthur Fitt)
* added DB2390Dialect for DB2/390 databases (Kristoffer Dyrkorn)
* fixed a bug in toArray() of identifier bag collections (Khachchou Mohammed)
* fixed a problem with DDL generation for serial columns in Informix
* fixed a problem with DDL generation for timestamp columns in Informix (Michael Schmidt)
* fixed a NPE that occurred calling saveOrUpdateCopy() for components
* fixed a bug with replicate() and uninitialized collections
* fixed a bug caching one-to-one associations
* fixed eviction from named query cache regions

Changes in version 2.1.3 (25.4.2004)
-----------------------------------
* added SELECT-clause SQL function support to main Dialects
* fixed a problem where some unnecessary selects where issued for optional one-to-one associations
* fixed a bug in SQL generation for criteria queries with multiple one-to-many joins
* deprecated everything related to PersistentEnum
* fixed an NPE that occurred when using <one-to-one property-ref> with composite ids
* fixed a problem with JCA adaptor on WebLogic (Michael Gloegl)
* improved behavior when removing elements from <idbag>s
* fixed a bug in getGeneratedKeys() support (Michael Gloegl, Kevin Day)
* fixed a bug when using Criteria queries with collections of joined-subclasses
* fixed an NPE that occurred when calling comparator() on a lazy sorted set (Attila Szegedi)
* fixed a bug when using setMaxResults() with native SQL queries in some Dialects
* validate that composite id classes override hashCode() (Adrien)
* fixed some minor problems with saveOrUpdateCopy()
* fixed some problems in OSCache provider
* fixed an NPE that occurred when calling a lazy collection after evicting from session
* fixed an NPE that occurred when select-before-update is used with unversioned data (Patrick Peralta)
* fixed a bug where dynamic-components could not be queried (Massimo Ferrari)
* SQL formula parser now recognizes all Dialect-specific SQL functions (Anthony Patricio)
* fixed a problem where SQL CASE statements could not appear in SQL formulas
* fixed a problem where subselects with joins could not appear in SQL formulas
* C3P0 and Proxool pools now cleaned up after SessionFactory.close()
* fixed a bug where dirty checking of mutable properties was broken after lock()
* fixed a minor bug where orphan delete was broken for newly saved instances
* added Query.setFetchSize() and Criteria.setFetchSize()
* PreparedStatement pooling in DBCPConnectionProvider can now be disabled (Emmanuel Bernard)
* Query.setProperties(Object) now detects array and collection valued properties and delegates to Query.setParameterList() (Max Andersen, Nick Heudecker)
* lengths of positional parameters and types arrays are now validated
* fixed an obscure problem where a PreparedStatement was not closed

Changes in version 2.1.2 (4.2.2004)
-----------------------------------
* added Session.isDirty()
* fixed a very obscure concurrency problem with read-write cache for inverse collections
* deprecated Criteria.returnMaps() / Criteria.returnRootEntities() in favor of new ResultTransformer framework
* don't cache objects with dynamic-update="true" or <joined-subclass> mappings immediately after insert/update
* added version checking to saveOrUpdateCopy()
* fixed constraint violations that occurred when mixing identity columns with other id generation strategies
* added Sybase 11.9.2 dialect to support older versions of Sybase that do not support ANSI joins (Colm O' Flaherty)
* added Informix9Dialect (Finn McCann and Max Andersen)
* added DB2400Dialect (Peter DeGregorio)
* fixed a problem where mapping validation failure was reported as duplicate import (Michael Gloegl)
* fixed a problem with Expression.not() in MySQL (Michael Gloegl)
* added support for ResultSet.getGeneratedKeys() (David Morris, John Kristian)
* added check attribute to allow check constraints in DDL
* implicit polymorphism for Criteria queries (Shorn Tolley)
* use IF EXISTS for dropping hilo tables (Michael Gloegl)
* better exception report if deleted object is resaved by cascade
* support nested components in Example queries (Emmanuel Bernard)
* fixed a minor problem with onDelete() callbacks
* fixed an obscure problem with select-before-update
* added SunONETransactionManagerLookup (Robert Davidson)
* fixed a problem with replicate() and <joined-subclass> mappings
* made setParameterList() accept empty lists and deny null values (Max Andersen)
* validation check on query parameters now allows setParameter(x, null) (Max Andersen)
* added default-access to DTD (Max Andersen)
* made Query.setParameterList() accept empty lists and deny null values (Max Andersen)
* allow Query.setParameter(x, null) (Max Andersen)
* queries with "select new" now cacheable
* throw meaningful exception when lazy initialization occurs on disconnected session
* added default-access to <hibernate-mapping> (Max Andersen)
* added -text support to SchemaUpdate (Max Andersen, Matt Hall)
* fixed broken implementation of embedded composite keys with createSQLQuery() (Max Andersen)
* added hibernate.cache.use_minimal_puts config property to reduce unnecessary second-level cache puts
* optimized performance of orphan delete detection (Bertrand Renuart)
* fixed problem where unnecessary UPDATE occurred after INSERT for versioned objects with collections
* WebSphereTransactionManagerLookup for WAS 5.1 (Edina Pimp)
* Criteria queries now cacheable (Mario Ivankovits)
* fixed problem with ordered, paginated queries in DB2 (Tim Collins)
* fixed a bug caching <idbag>s
* lazy="true" collections are now lazy even when available in cache
* fixed a problem with version unsaved-value="negative"
* added hibernate.cache.region_prefix config property (William Drai)
* fixed problem where configuration input streams were not closed (Rajesh Patel)

Changes in version 2.1.1 (17.12.2003)
-------------------------------------
* added optional package attribute to <hibernate-mapping>
* added <meta-value> element to allow simpler <any> mapping
* native SQL queries are now cacheable - added <synchronize> element to allow correct result set expiry
* fixed a bug in CGLIB2 integration (Chris Nockleberg)
* added NamingStrategy
* don't cache objects with formula properties immediately after insert/update
* log generated SQL to a special category
* type of property with access="field" may now be guessed using reflection

Changes in version 2.1 final (12.12.2003)
-----------------------------------------
* fixed a problem with CGLIB2 proxies and method calls inside constructors
* fixed a bug running SchemaExportTask with mappings in jar files (Tom McCune)
* allow custom persister declaration for subclasses (Nick Johnson)
* fixed handling of sequences in SchemaUpdate on Oracle (Andrew Delpha)
* fixed a bug where Iterator did not handle single null values correctly
* detect and throw exception in the case of a duplicate property mapping
* don't auto-create indexes for collection foreign keys (roll back to 2.0.x)

Changes in version 2.1 rc1 (29.11.2003)
---------------------------------------
* long identifier and discriminator column names are now safely aliased (Max Andersen)
* cleaned up mapping package to allow applications to manipulate metamodel programmatically
* fixed a recent bug where collection sort order was lost in second-level cache
* formula attribute now supported for joined-subclass mappings
* formula properties may now be used anywhere in queries
* dialect-specific query pagination for SQL Server
* fixed a bug where a long path expression ending in collection access by index missed some tables in SQL FROM clause
* fixed a very ancient performance problem where null one-to-one associations caused n+1 selects
* added Session.saveOrUpdateCopy()
* fixed some bugs in Example queries
* fixed some minor bugs in dialect-specific query pagination
* immutable entity passed to update() is now lock()ed instead
* reworked the semantics of nonstrict-read-write
* JCS cache support now deprecated
* fixed some obscure bugs in collection handling
* migrated to CGLIB2 (thanks to Chris Nockleberg)
* fixed bugs in replicate()
* fixed a bug affecting joined-subclass mappings with dynamic-update=true
* performance improvements to boolean type mappings (Bertrand Renuart)
* integrated JBoss TreeCache clustered cache (thanks to Bela Ban and Ben Wang)
* fixed a bug in new query parameter validation (Steve Ebersole)
* fixed a bug where <any> mappings caused unnecessary ObjectDeletedException at flush time
* fixed a bug where associations with property-ref mappings were not properly cached
* throw PropertyValueException when not-null properties are null at flush time
* added unsaved-value attribute to version property mapping (Emmanuel Bernard)
* tolerate classnames containing $ (Steve Ebersole)

Changes in version 2.1 beta 6 (5.11.2003)
-----------------------------------------
* added Session.cancelQuery()
* improvements to transaction handling for failed commit (thanks to Juergen Hoeller)
* added cascade="delete-orphan"
* fixed an exception that occurred when a property was declared not-null="true" update="false" (thanks to John Kristian)
* support multiple named query cache regions (Mikheil Kapanadze)
* some improvements to collection reattachment
* fixed a bad bug with adds to an uninitialized bag or list
* removed support for <dynabean/> components
* added <dynamic-component/> mapping for properties of type Map
* fixed a bug where schema export generated index names that were too long for DB2
* allow per-region expiry policies in OSCache (Matthias Bogaert)
* fixed a stack overflow that could occur while initializing nonlazy collections
* fixed a bug in case-insensitive like for Example queries
* fixed a bug in ScrollableResults.setRowNumber() (Martin Priekopa)
* improvements to the cache concurrency strategies

Changes in version 2.1 beta 5 (30.10.2003)
------------------------------------------
* Support for custom CollectionPersister (Nick Johnson, Max Andersen)
* Support for named SQL queries (Max Andersen)
* duplicate named queries now throws MappingException instead of just logging warning (Max Andersen)
* fixed problems with WebSphereTransactionManagerLookup (Ralf Taugerbeck, Daniel Bradby)
* added support for custom collection persisters (thanks to Max Anderson, Nick Johnson)
* fixed a performance problem during query compilation (Bulent Erdemir)
* composite keys now supported in createSQLQuery() (Max Andersen)
* fixed JCA adaptor to run in WebLogic (Daniel Bradby)
* integrated SwarmCache (Jason Carreira)
* integrated OSCache (Matthias Bogaert)
* fixed an NPE that could occur with lists and orphan delete
* allow nullable one-to-one with property-ref
* improved usage of Dialect-specific limit SQL
* fixed problem where non-lazy collections held by cached objects were not immediately initialized
* fixed getReturnTypes() for native SQL queries (Max Andersen)
* fixed problems with Criterions that applied to multi-column properties
* check of rowcounts when JDBC batch updates enabled
* added named SQL queries using <sql-query> element (Max Andersen)
* added some extra validations so Hibernate fails earlier when user makes mistakes
* allow lazy="true" as an alternative to proxy="ClassName"
* removed dependency to commons-lang
* SchemaExport now creates indexes for collection foreign key columns if specified by Dialect
* fixed a bug parsing named parameters in setParameterList()
* select new Foo(...) will now tolerate null values if the constructor accepts a wrapper type
* fixed a problem detecting Proxool
* added logging of persistent object states during flush()
* allow "not null" as a discriminator value
* added "parameters" config param to "sequence" generator (Matthias Bogaert)

Changes in version 2.1 beta 4 (3.10.2003)
-----------------------------------------
* fixed a bug where <any> mappings did not handle proxies correctly
* implemented new optimistic-lock strategies
* fixed several bugs in Criteria query API
* fixed a bug caching property-ref associations
* improvements to XML Databinder (Ara Abrahamian)
* added Session.replicate() and ReplicationMode
* added ScrollableResults.setRowNumber() / ScrollableResults.getRowNumber()
* added query cache and Query.setCacheable()
* added Criteria.returnMaps()
* fixed some problems with CGLIB proxies
* fixed an NPE that occurred when a joined-subclass of a versioned entity defined only collections
* added the access attribute, direct field access and the PropertyAccessor extension point
* added MatchMode for use with Criteria queries (thanks to Michael Gloegl)
* fixed a bug where some lazy="false" collections were not immediately initialized
* fixed problem with WebSphere 5 TransactionManager
* support schema attribute in MySQL, by using an underscore in the table name (Chris Hane)
* now seperate Dialects for Interbase and Firebird (Reha Cenani, Max Andersen)
* removed built-in PreparedStatement cache
* added Session.getSessionFactory()
* fixed problem with native SQL queries and Query.setProperties() (Max Andersen)
* Query now fully validates parameters against the query string before passing them to JDBC (Max Andersen)
* fixed an NPE in SessionFactory.close()
* fixed an NPE that occurred when using <idbag>s
* added SQL-level query results paging to DB2Dialect
* "foreign" id generator now handles detached instances

Changes in version 2.1 beta 3 (7.9.2003)
----------------------------------------
* added Example queries
* fixed an exception that occurred at startup with <key-many-to-one> and <joined-subclass>
* fixed a bug where composite-elements were not being updated if a property not in the equals() was changed
* <parent> property of a composite-element may now be used in equals()
* named parameters may now be used in HQL order by clause
* null value of version property now indicates unsaved instance
* added select-before-update attribute
* two-phase loading now use for components
* better implementation of equals()/hashCode() for proxies
* added property-ref attribute to <many-to-one>
* renamed result() to uniqueResult()
* added Session.get()
* added HashtableCacheProvider
* JTA TransactionManager now used even when not using Hibernate Transaction API
* always bypass process-level cache for LockMode.READ

Changes in version 2.1 beta 2 (27.8.2003)
-----------------------------------------
* <subclass> and <joined-subclass> may now appear outside of a <class> element, by providing the extends attribute (Max Andersen)
* fixed an NPE at startup that was introduced in beta 1
* fixed a bug in Map.putAll()
* new pluggable cache API
- deprecated <jcs-cache> in favor of <cache>
- net.sf.hibernate.cache.CacheProvider settable via hibernate.cache.provider_class
* more aggressive caching
* added Hibernate.close(Iterator)
* Criteria queries may now include joins
- Criteria.addJoin()
- Criteria.createCriteria()
* hibernate.transaction.manager_lookup_class should now ALWAYS be specified in JTA environment when using jcs caching
* fixed a bug caching <key-many-to-one>
* fixed bug where cached component did not get <parent> property populated
* added hibernate.max_fetch_depth property
* smarter outer-join fetching
* transient object may now be associated with session using Session.lock()
* added Query.result(), Criteria.result()

Changes in version 2.1 beta 1 (10.8.2003)
-----------------------------------------
* batch-size attribute for collection and class mappings, to allow batch loading
* collections of "value types" (including composite-elements) may now appear in HQL from clause
* more efficient loading of collections, and better handling of non-lazy collections
* added HQL index() function to allow access to collection element index
* added Session.createSQLQuery() (Max Andersen)
* added outer-join attribute to collection mappings
* Criteria.setFetchMode() now applies to collection-valued path expressions
* added property-ref attribute to <one-to-one>, enabling unique foreign key associations
* added hibernate.max_fetch_depth config property
* added hibernate.hbm2ddl.auto config property
* fixed a bug with combination of <jcs-cache> and <key-many-to-one>
* support for Dialect-specific SQL functions in HQL select clause (David Channon)
* added Session.clear()

Changes in version 2.0.2 (2.8.2003)
-----------------------------------
* subqueries may now use HAVING and GROUP BY clauses
* fixed a bug with setMaxResults(), setFirstResult() in HSQL (introduced in 2.0.1)
* fixed a bug in Set.removeAll()
* fixed a bug in SchemaUpdate (Mathias Bogaert)
* added weak typing functionality to ScrollableResults
* fixed a bug with "calendar" versioning in IBM JDK1.3.1 (workaround for JDK bug)
* fixed a bug in mapping DTD that caused a problem for hbm2java (Max Andersen)
* fixed a bug querying nested components
* SQL generation now prefers ANSI-style inner joins to theta inner joins
* fixed a bug caching collection references loaded using FETCH
* fixed a bug with composite foreign keys in normalized table mappings (Tom Sedge)
* limit support for Interbase (Ludovic Orban)
* added where attribute to <class> mappings
* added cascade="all-delete-orphan" for collection mappings
* fixed a bug binding named parameters with setMaxResults()/setFirstResults()
* fixed some minor bugs in HQL translator
* fixed a long-standing bug where a <key-many-to-one> could not be dereferenced in HQL
* SQL UPDATEs now occur in a predictable order (same order as objects were loaded)
* support for SELECT ... FOR UPDATE in SAPDB
* fixed bug where Criteria queries against a subclass also returned superclass instances
* fixed a very rare bug where an update could get lost with normalized mappings
* fixed a problem with proxied class heirarchies rooted at an interface or abstract class
* where and order-by attributes now allow SQL function calls and subselects
* added formula attribute to <property> tag, to allow "computed" properties
* fixed a bug where PreparedStatements were sometimes not closed when an exception occured
* workaround for a problem with <joined-subclass> and Interceptor.onFlushDirty()

Changes in version 2.0.1 (17.6.2003)
------------------------------------
* fixed some problems with new dialect-specific LIMIT clauses
* improved parsing of collection where attribute
* made one-to-many bags more efficient (they are really sets!)
* allowed type="calendar" for <version> properties
* fixed a bug with locking a versioned composite-id class
* refresh() may now take a transient instance
* added ProxoolConnectionProvider (Martin Crawford)
* fixed some minor JCA issues (Mike Mosiewicz)
* fixed a bug with FETCH and sorted associations
* improved performance of SchemaUpdate tool (Teodor Danciu)
* fixed a bug in Configuration.addFile(String) (Ken Geis)
* tidied up and documented hbm2ddl package (esp. Ant tasks)
* deprecated CounterGenerator in favor of IncrementGenerator
* improved logging during initialization
* deprecated "vm" in favor of "increment" id generator

Changes in version 2.0 final (8.6.2003)
---------------------------------------
* added "fetch" keyword to HQL
* added evict() methods to SessionFactory for JVM-level cache
* destroy caches from SessionFactory.close()
* fixed an NPE in Session.evict() (Simon Spero)
* added Query.setLockMode()
* tidied up implementation of Loader
* release ResultSets more aggressively
* miscellaneous improvements to some Dialects
* hbm2java now honors the sort attribute (Max Andersen)
* added exceptions to Interceptor interface
* fixed problem with setMaxResults(), setFirstResult() in Oracle (introduced in beta 6)
* fixed some SQL generation that was a problem for Sybase (Dietmar Posselt)
* fixed some problems with ODMG API (Oliver Gries)
* added JOTMTransactionManagerLookup (Low Heng Sin)
* added JOnASTransactionManagerLookup (?)
* fixed a bug in WeblogicTransactionManagerLookup (Mathias Bogaert)
* added Criteria.setFetchMode()
* added new Expressions
* much more elegant/robust handling of quoted identifiers
* renamed Hibernate.association() to Hibernate.entity()
* added dynamic-update and dynamic-insert mapping attributes
* fixed a bug with refresh() of objects with collections
* HQL aliases now optional - "from Cat" now legal
* platform-independant quoting of identifiers using backticks

Changes in version 2.0 beta 6 (10.5.2003)
-----------------------------------------
* fixed a bug querying one-to-many associations to a <joined-subclass>
* added support for dialect-specific LIMIT-style clauses (David White)
* added <idbag>
* fixed bug in hashCode() of persistent collections
* <joined-subclass> now supported in HSQL (Wolfgang Jung)
* fixed problem for XML parsers which ignore default values declared in DTD
* <meta> tags can now be set to not be inheritable
* fixed bug in Expression.in()
* fixed an NPE that could occur from update() in very strange cases (Chris Nockleberg)
* disabled outer-join back to owner when initializing one-to-many (performance improvement)
* fixed a bug in Query.setParameterList() (Nick Heudecker)
* improved JCA support (Igor Fedorenko)

Changes in version 2.0 beta 5 (21.4.2003)
-----------------------------------------
* Informix support (Steve Molitor)
* fixed a bug parsing "select new ... " queries
* deprecated "object" type in favor of <any> mappings
* added Session.contains()
* added extra DBCP config options (Alex Burgel)
* SessionFactory.close() now unbinds from JNDI
* added Session.evict()
* got rid of an unnecessary SQL DELETE issued when an empty collection was dereferenced
* where attribute of collection mappings no longer ignored for deletion
* improved logging
* support polymorphic associations to "embedded" composite id classes
* various bugfixes to collection filter parameter binding
* fixed some problems with proxies introduced in earlier beta versions
* fixed bug with self-reference in the case of identity column id generation
* added hibernate.cglib.use_reflection_optimizer property
* added nonstrict-read-write cache
* fixed an SQL-generation bug in new Criteria API
* added CompositeUserType
* sequence and table id generators now aware of default-schema
* added update and insert attributes to <component> element
* fixed a bug with expressions like elements(foo.bar.baz) in where clause
* more efficient Set initialization (two-phase load)
* removed support for hibernate.query.imports and added <import> mapping element
* fixed problem in DBCP connection validation and added new config properties
* hbm2java can now generate finder methods for persistent objects (experimental) (Matt Hall)
* hbm2java small fixes/refactorings to support generating more than one file per persistent object (Max Andersen)

Changes in version 2.0 beta 4 (22.3.2003)
-----------------------------------------
* Major HQL improvements
- from "Foo as foo join foo.bars as bar" instead of "from foo in class Foo, bar in elements(foo.bars)"
- "select new Foo(bar.name, bar.amount) from ...."
- outer and full join support
* Query methods now return this, to allow chaining
* FrontBase support (Run Lussier)
* experimental JCA support (Daniel Bradby)
* hbm2java now can generate Beans style property events (Klaus Zimmermann)
* support SQL identifiers quoted with []
* fixed bug with PostgreSQL
* name attribute now optional in .cfg.xml
* support for postgres ilike operator (M Lang)
* squash warnings with GNU JAXP (Chris Nockleberg)
* fixed a bug in Query.setParameterList()
* Ingres support (Ian Booth)
* collections now detect changes not made via wrapper for newly saved objects
* new (experimental) Criteria + Expression APIs
* Query.setEntity(), etc, now aware of proxies (also improved hueristics for guessing Type)
* added Hibernate.isInitialized()
* detect changes made directly to newly-wrapped collection (ie. not via the wrapper)
* added Hibernate.refresh(Object, LockMode)
* update(), saveOrUpdate() no longer initialize a proxy
* fixed problems with Sybase
* added force attribute to <discriminator>
* improved handling of null discriminator-value
* support SQL-style '' escape for HQL strings

Changes in version 2.0 beta 3 (24.2.2003)
----------------------------------------
* collections now represent null elements as a missing row
* collections now deserialize correctly (fix for bug in beta 2)
* standardised on dom4j for XML parsing
* fixed bugs in collection caching (an exception occurred for some sorted collections and some kinds of maps)
* allowed null discriminators
* set autocommit to true in SchemaUpdate
* fixed a stack overflow that could occur in toString() of classes created with hbm2java (Max Andersen)
* fixed a bug where composite-element <parent> property was not being set after retrieval from cache
* added where attribute to collection mappings to allow filtering
* fixed a exception that occurred when wrapping collections with sort="MyComparator" (Jason Horne)
* objects with mutable="false" are now never updated
* fixed an exception that occurs with <key-many-to-one> association to a class with a composite id (Stefano Travelli)
* added SchemaExport Ant task (Rong C Ou)
* integrated latest CGLIB release (Juozas Baliuka)
- added support for new CGLIB reflection optimizer (Juozas Baliuka)
* improved query cache algorithm (Who?)
* fixed a bug in "object" type
* Lists and arrays now represent null elements as a missing row
* fixed a bug in Hibernate PreparedStatement cache where maxRows and fetchSize were not cleared before re-caching
* fixed a bug in HibernateService that caused a restart to fail
* added SybaseAnywhereDialect (?)
* added SessionFactory.close()

Changes in version 2.0 beta 2 (2.2.2003)
----------------------------------------
* property column names may now be of any length (Mark Woon)
* fixed problem where CodeGenerator created private get/set pairs (Max Andersen)
* fixed all silly bugs in Configuration.configure()
* efficient collection updates from Session.update()
* added <jcs-class-cache> and <jcs-collection-cache> elements to hibernate-configuration.dtd
* support for normalized mappings for databases with DECODE instead of CASE (Simon Harris)
* added Oracle9Dialect
* added JRun4TransactionManagerLookup (Joseph Bissen)
* fixed JDBCException to keep reference to underlying SQLException
* fixed a bug loading many-to-many associations with a repeated column name
* fixed a bug in ShortType
* added IngresDialect (Ian Booth)
* added --config option to SchemaExport

Changed in version 2.0 beta 1 (28.1.2003)
-----------------------------------------
* renamed packages to net.sf.hibernate.*
* all API methods now wrap SQLExceptions
* removed support for toplevel collections / subcollections
* created hibernate-mapping-2.0.dtd
- renamed 'readonly' attribute to 'inverse'
- renamed 'role' attribute to 'name'
- changed default value for 'unsaved-value' to "null"
- added mandatory 'name' attribute to <param>
- added <meta> tag
* created hibernate-configuration-2.0.dtd
* brand new Configuration API, including exposed mapping package
* completely reworked IdentifierGenerator framework
- built-in generators now auto-detect the type (so integer identity columns are supported, for example)
- parameters are now named
- built-in strategies are renamed
* expanded Interceptor interface
* removed exceptions that occur if an object is saved or deleted multiple times in a session
* added <parent> subelement to <composite-element> and <nested-composite-element>
* collections except for <bag>s now implement by-value equals() and hashCode()
* removed all deprecated methods
* added Session.refresh()
* added dynamic-update functionality
* added update and insert attributes to <property> and <many-to-one> mappings
* added elements(), indices(), size(), maxelement(), minelement(), maxindex(), minindex() collection functions to query language
* huge improvements to CodeGenerator (Max Andersen)
* enhanced outerjoin fetching support in queries
* experimental support for DynaBeans as components

Changes in version 1.2.3 (28.1.2003)
------------------------------------
* fixed a recently-introduced problem with Timestamp dirty checking
* added createClob(), createBlob() for streams (Benoit Menendez)
* SchemaUpdate now configures Dialect correctly (Michael Locher)
* update() now working for classes with embedded composite ids
* unsaved-value attribute now recognized for <composite-id>
* fixed a minor problem where a very specific kind of SQL select did not qualify a column name
* added Query.getQueryString()
* fixed an NPE that sometimes occurred when hibernate.connection.username was not specified
* fixed a bug in SchemaExport where foreign key constraints did not use qualified tablenames
* added isFirst(), isLast() to ScrollableResults
* fixed bug finding properties inherited by mapped interfaces

Changes in version 1.2.1b (4.1.2003)
------------------------------------
* fixed an NPE that occurred while loading Hibernate classes in IBM JVM
* arbitrary JNDI InitialContext properties may now be passed as hibernate.jndi.*
* fixed a problem where index column was not being nullified when an entity was removed from a one-to-many

Changes in version 1.2.1 (31.12.2002)
-------------------------------------
* Changed the MySQL mapping of Hibernate "timestamp" to MySQL "DATETIME" (Matthias Schwinn)
* TransactionManagerLookup classes now define defaut UserTransaction JNDI names
* support for WebSphere 5 (Venkat Srinivasan)
* fixed a bug with query expressions of the form "foo.bar.id" for normalized mappings
* experimental Blob/Clob support (thanks to Benoit Menendez and Mark Woon)
* improvements to SchemaUpdater (Benoit Menendez)
* deprecated suspendFlushes() / resumeFlushes() in favor of FlushMode
* deprecated IDGenerationException in favor of IdentifierGenerationException
* fixed a bug introduced in 1.2 final where cascade save-update was sometimes ignored for readonly="true" bags
* fixed a bug caching null-valued one-to-one associations
* CodeGenerator now supports <bag> and <joined-subclass>
* fixed problem with TimestampType on DB2 (Jonas)
* fixed a bug in generated SQL for collections with <joined-subclass> mappings (Robson Miranda)
* fixed a bug caching Maps (Benoit Menendez)
* SchemaExport now accepts a .jar file as a source of mappings
* hibernate.dbcp.validationQuery setting (Juozas Baliuka)
* hibernate.c3p0.validate setting
* added Query.setTimeout()
* setMaxResults() now behaves sensibly on SAPDB (Russel Smyth)
* added Query.setProperties() and Query.getNamedParameters(), fixed a bug in Query.getReturnTypes()
* CodeGenerator now generates equals() and hashCode() for composite-id classes (and toString() for all classes)
* CodeGenerator now includes superclass properties in subclass constructors (Max Andersen)
* added Hibernate.custom()

Changes in version 1.2 final (7.12.2002)
----------------------------------------
* fixed a bug where uppercase IS NOT NULL, NOT IN, etc were not parsed correctly
* addition to readonly="true" bags now no longer requires collection initialization
* added ResinTransactionManagerLookup (Aapo Laakkonen)
* improved exception message when setting null to primitive type (Max Andersen)
* improved exception message for an unserializable identifier
* support for overloaded setter methods (patch by Alex Staubo)
* CodeGenerator support for <composite-element> (patch by Wolfgang Jung)

Changes in version 1.2 beta 4 (29.11.2002)
------------------------------------------
* fixed bugs in one-to-many associations to a <joined-subclass>
* LockMode class now properly serializable
* exceptions thrown by proxied objects are now propagated correctly (rather than being wrapped)
* made Calendar types compilable in JDK1.2
* added --format and --delimiter options to SchemaExport (thanks to Richard Mixon)
* fix for problem with class with no properties + native id generation + MS SQL Server contributed by Max Andersen
* fixed a BAD bug in Hibernate.configure() (thanks to Rob Stokes)
* CodeGenerator now recognizes <key-many-to-one> (patch by Wolfgang Jung)
* CodeGenerator now recognizes <version> and <timestamp> (patch by Max Andersen)

Changes in version 1.2 beta 3 (26.11.2002)
------------------------------------------
* fixed bug in UPDATE SQL generation for <joined-subclass> mapping strategy (fix by Robson Miranda)
* support <composite-id> correctly in CodeGenerator (patch by Tom Cellucci)
* fixed an exception that occurred with short qualified tablenames
* added the polymorphism attribute to the <class> element
* allow "not between", "not in" in query language
* allow subqueries beginning with a from clause in query language
* query expressions like "not (foo.bar.baz=1)" now translated to "(bar.baz!=1 and foo.bar=bar.id)"
* support for PostgreSQL ~ operator (regular expression match)
* load(id, lockMode) now working for normalized table mappings
* now compiling properly under JDK1.2, 1.3 (fix by Tom Cellucci)
* support for subcollections in query language: foo.bars[2]['index'], foo.bars[4].elements, foo.bars[0].size, etc.
* added calendar and calendar_date types
* find() queries may now return scalar values
* component-type properties may appear in a select clause
* ConnectionProviders now set isolation level before toggle autocommit
* Iterator.next() now throws NoSuchElementException as per Iterator contract (fix by Alex Staubo)
* database reverse engineering GUI tool contributed by Tom Cellucci
* SchemaExport now generates column in mapping file order (rather than alphabetical order)
* <joined-subclass> mappings working on Oracle (?)

Changes in version 1.2 beta 2 (15.11.2002)
------------------------------------------
* support multi-argument SQL functions in queries
* reintroduced deprecated form of update() with slightly altered semantics
* fixed BAD problem in the generated SQL for certain queries
* added OrionTransactionManagerLookup

Changes in version 1.2 beta 1 (11.11.2002)
------------------------------------------
* Fixed a bad bug binding to JNDI with servers that use serialization in preference to getReference()
* support for quoted SQL identifiers (patch by Jean-Francois Nadeau)
* Hibernate.initialize() allows the user to force initialization of a proxy or persistent collection
* fix to minor bug in CodeGenerator by Max Andersen
* fixed a problem with outerjoin fetching of one-to-one associations defined on subclasses
* fixed a minor problem with proxies of classes that override finalize()
* finished work on normalized table mappings using <joined-subclass> declaration (only for databases with ANSI OUTER JOIN and CASE)
* deprecated hibernate-mapping.dtd in favor of hibernate-mapping-1.1.dtd
* reworked unmapped class / interface / table-per-concrete-class query functionality, fixing several problems
* removed deprecated methods
* deprecated findIdentifiers()
* fixed some problems with embedded composite identifiers
* fixed a bug cascading deletes to one-to-one associations
* CodeGenerator now generates isFoo() style getters for boolean properties (patch by Aapo Laakkonen)
* components may now have a nonpublic constructor (patch by Jon Lipsky)
* changes / bugfixes to MapGenerator tool
* experimental SchemaUpdate tool contributed by Christoph Sturm

Changes in version 1.1.8 (30.10.2002)
-------------------------------------
* full support for composite keys in query language
* fixed bug where character type could not be null
* fixed bug parsing collection filters like: "group by this.date"
* fixed a bad bug where C3P0 properties were not always being used
* replaced hibernate.use_jdbc_batch with hibernate.jdbc.batch_size
* renamed some other properties to hibernate.jdbc.*
* made hibernate.show_sql settable from JMX (patch by Matas Veitas)
* added SessionFactory.getAllClassMetadata(), getAllCollectionMetadata (patch by Max Andersen)
* allowed use of concrete-class proxies with inherited classes ie. <subclass name="ConcreteClass" proxy="ConcreteClass">
* HibernateException extends Apache commons lang NestableException (patch by Max Andersen)
* <parent> subelement of <component> allows a component to get a reference back to owning entity
* Query.setParameterList() to bind lists of values to "in (:list)"
* Java constants may now be used in Queries
* serialization of an object graph now removes all initialized proxies
* several other improvements to proxy handling
* proxies may now be used in JDK 1.2

Changes in version 1.1.7 (25.10.2002)
-------------------------------------
* added Session.createFilter() 
* fixed a bug parsing queries with properties of form idXXX (introduced in 1.1.6)
* fixed a bug parsing queries with the id property named in the select clause (introduced in 1.1.6)
* fixed a bug dirty checking big_decimal (fix by Andrea Aime)

Changes in version 1.1.6 (24.10.2002)
-------------------------------------
* classes without subclasses may now declare themselves as their own proxy
* outer-join attribute now working for component properties and <many-to-many>
* outer-join="true" will now force outerjoin loading for an association even if associated class has a proxy
* enabled oracle-style outerjoins for SAP DB
* version properties may now be long or short (previously always integer)
* discriminators may now be boolean type
* fixed the foo.bar.id.baz syntax for queries doing composite-key joins
* fixed an NPE that occurred when no Dialect was specified
* CodeGenerator now fully proxy-aware (patch by Max Andersen)
* removed dependency upon trove4j

Changes in version 1.1.5b (20.10.2002)
--------------------------------------
* fixed an NPE that occurred on JMX startup
* smarter fetching for one-to-one associations

Changes in version 1.1.5 (19.10.2002)
-------------------------------------
* added built-in currency and timezone types
* hibernate-mapping-1.1.dtd
- added <index-many-to-many> and <composite-index> subelements of <map>
- added <key-property> and <key-many-to-one>
- renamed "save/update" to "save-update"
- tightened up the dtd (now using enumerated attribute types)
* enabled multi-column map indexes (ie. key of a Map)
* composited-id may now include a many-to-one association
* improvements to Databinder contributed by Brad Clow
* fixed bugs in minIndex, maxIndex, minElement, maxElement
* fixed a problem with JTATransaction in a JBoss BMT bean
* added addMapResource() to the MBean
* minor improvements to Configuration
* more accurate cache entry timestamping to increase the likelihood of cache hits
* JCS cache may now be used with JTATransaction in WebSphere, Weblogic, JBoss (thanks to Matt Baird)
* improvements to CodeGenerator contributed by Andrea Aime
* stopped a TransientObjectException that was being thrown when it shouldn't be
* re-enabled primary key export for tables of sets with not-null elements
* hibernate.statement.fetch_size configuration contributed by Matas Veitas
* added Interceptor application callback interface
* added metadata package to expose persistence metadata to the application
* changed filter() argument type from Collection to Object to allow filtering of arrays and Maps
* added <column> index attribute to allow table indexes to be specified in mapping document
* implemented support for queries against interfaces and abstract superclasses

Changes in version 1.1.4b (4.10.2002)
-------------------------------------
* fixed problems for JDK1.2 (thanks to Chris Webb)

Changes in version 1.1.4 (4.10.2002)
------------------------------------
* New locking API
* disabled 2-phase load for objects contained in Sets (because they should be initialized before equals() or hashCode() is called)
* fixed a bug where non-serializable cache entries could not be cached by JCS auxiliary cache
* fixed a bug in dirty checking PersistentEnums
* deprecated getID() in favor of getIdentifier() (for mainly cosmetic reasons)
* HibernateService may now be subclassed to obtain mapping files by some other mechanism (patch by Chris Winters)

Changes in version 1.1.3 (1.10.2002)
------------------------------------
* new 2-phase loading process (replaces complicated "deferred" loading process)
* new ScrollableResults interface for efficiently navigating Query results
* removed deprecated interfaces
* created engine package to hold "internal" APIs (ie. the external contract of the impl package)
* fixed bug where a component defined before all collections in the mapping file caused collections to not be persisted (thanks to Michael Link)
* fixed a bug where cascaded saveOrUpdate was ignoring the unsaved-value setting
* faster Timestamp dirty checking

Changes in version 1.1.2 (29.9.2002)
------------------------------------
* added persister attibute of class mapping to support custom persistence strategies
* Support for Oracle outerjoins contributed by Jon Lipsky
* Reworked versioning, fixing bugs (and tightening tests)
* Fixed a bug where an ObjectNotFoundException was thrown for null one-to-one associations
* fixed problems with timestamps introduced in 1.1.1
* added batch file for running demo

Changes in version 1.1.1 (27.9.2002)
------------------------------------
* Major refactoring / abstraction of persistence logic
* added maxIndex, minIndex, maxElement, minElement properties for collections
* added support for class names in where clause of queries
* fixed a bug where an association could become null after caching
* fixed a bug where an NPE could occur for a null component
* fixed minor bugs in SortedMap, SortedSet
* object type is now cacheable
* added big_integer type
* improved dirty checking for timestamp type

Changes in version 1.1.0 (22.9.2002)
------------------------------------
* implemented collection indexing with [] in query language
* fixed some minor query-language bugs

Changes in version 1.1 beta 14 (19.9.2002)
------------------------------------------
* bags now implement java.util.List
* delete() may now take a transient object
* bug where sorted collections were not being sorted fixed by Brad Clow
* fixed a bug in many-to-many association filtering
* no longer try to query connection metadata when using user-supplied connections
* added hibernate.use_scrollable_resultsets for user-supplied connections
* fixed a problem where sublists were not being proxied
* fixed a problem where Hibernate could not call methods of package-visibility classes
* removed obsolete select attribute from MapGenerator
* multiple occurrences of same path in a query no longer require multiple joins
* added WrongClassException

Changes in version 1.1 beta 13 (15.9.2002)
------------------------------------------
* added constants to Lifecycle interface
* fix for circular cascade="save/update"
* fixed a bug in cascaded update introduced in version 1.1 beta 11
* added object type

Changes in version 1.1 beta 12 (14.9.2002)
------------------------------------------
* Session.filter() for applying a filter query to collections
* experimental ODMG API (OQL features are not yet compliant)
* new DBCPConnectionProvider for Apache commons-dbcp connection pool
* Session.lock() now does version number check even on databases with no FOR UPDATE clause
* introduced new cascade styles: cascade="save/update", cascade="delete"
* added default-cascade attribute
* foreign key columns lengths now automatically set to primary key column lengths for SchemaExport
* added error checking of row update counts when batching disabled
* major improvements to ProxyGenerator tool
* CodeGenerator now aware of proxy attribute
* integrated PointbaseDialect contributed by Ed Mackenzie
* fix for problem where Proxies were being initialized on identifier access by Christoph Sturm

Changes in version 1.1 beta 11 (7.9.2002)
-----------------------------------------
* deprecated update() in favor of saveOrUpdate() and introduced unsaved-value attribute of <id>
* children mapped with cascade="all" are now always saved/updated even without a call to update(parent)
* support for composite-id classes where the composite id consists of properties of the persistent class
* added constrained attribute to <one-to-one> element
* added Validatable interface
* renamed several config properties (Hibernate issues log warnings for obsolete property usage)
* arbitrary JDBC connection properties may now be passed using hibernate.connection.*
* fixed a classloading bug in C3P0ConnectionProvider (introduced in 1.1 beta 10)
* CodeGenerator may now take multiple mapping files on the commandline

Changes in version 1.1 beta 10 (28.8.2002)
------------------------------------------
* fixed a bug that occurred when calling Session.update() for an object with no properties
* changed class loading to use the context classloader first
* introduced <timestamp> as an alternative to <version>
* added Query.getReturnTypes()
* fixed a bug with composite-elements introduced in 1.1 beta 7
* save() may now be used to persist classes with composite-ids
* improved handling of nanoseconds values in Timestamps
* support for composite id properties + objects in select clause of iterate()
* beefed-up collection tests

Changes in version 1.1 beta 9 (26.8.2002)
-----------------------------------------
* fixed a bug introduced in 1.1 beta 8 that could cause an NPE after deserializing a session with proxies
* deprecated insert() in favor of more flexible save()
* deprecated IDGenerator in favor of new IdentifierGenerator interface
* "assigned" id generator now returns the existing value of the id property instead of throwing an Exception
* fixed a problem where PreparedStatements were not being recached after retrieving a natively generated id

Changes in version 1.1 beta 8 (25.8.2002)
-----------------------------------------
* fixed a bug introduced in 1.1 beta 6 where an updated element of an indexed one-to-many collection caused an SQLException
* uninitialized collections passed to update() may now be initialized in the new Session
* uninitialized proxies passed to update() may now be initialized in the new Session

Changes in version 1.1 beta 7 (23.8.2002)
-----------------------------------------
* fixed a bug where Hibernate was not returning statements to the cache when batch updates were disabled
* fixed a bad bug parsing mappings with toplevel one-to-many associations
* fixed a bug with versioning and subcollections
* reworked Set updates again for much improved efficiency
* schema export now creates primary keys for indexed collection tables
* minor refactor to Type hierarchy
* improved some user-error detection
* fixed foreign key constraint creation for MySQL with Innodb tables

Changes in version 1.1 beta 6b (20.8.2002)
------------------------------------------
* Fixed a problem updating Sets
* added <bag> mapping for java.util.Collection

Changes in version 1.1 beta 6 (20.8.2002)
-----------------------------------------
* completely reworked fetching code
- one-to-many associations now always fetched in a single select
- many-to-many associations fetched in a single select when outerjoin fetching is enabled 
- this includes nested outerjoin fetching of the associated class!
- outerjoin fetching for <many-to-one> nested inside <component> or <composite-element>
- code refactored to be cleaner and faster
* removed unnecessary order by clause in List and array fetching SQL
* collections now individually update, insert and delete only rows that changed (thanks to Doug Currie)
* fixed a problem where exceptions were being wrapped in a LazyInitializationException for non-lazy collections
* added order-by attribute to <set> and <map> to specify a table column as defining the iteration order (JDK1.4 only)
* improved error detection in Session.update()
* further usage of JDBC2 batch updates
* some fine-tuning of JDBC2 feature usage configuration
* CodeGenerator will now generate components and arrays
* fixed problem where CodeGenerator could not generate classes in the default package
* improved logging of flush() activity
* renamed property hibernate.use_jdbc2 to hibernate.use_jdbc_batch

Changes in version 1.1 beta 5 (13.8.2002)
-----------------------------------------
* hibernate.query.imports property to allow use of unqualified classnames in queries
* fixed a bug in collection flushing that was introduced in 1.1 beta 4

Changes in version 1.1 beta 4 (11.8.2002)
-----------------------------------------
* JMX integration (thanks to John Urberg)
* "having" clause in query language

Changes in version 1.1 beta 3 (10.8.2002)
-----------------------------------------
* removed the select="all" attribute for <class> mappings - "select distinct" now specified in the hibernate query
* system properties now override hibernate.properties
* Session now flushes changes even less often (only when actual updates to the queried table(s) are waiting)
* fixed a *very* rare problem where an unnecessary update could be accidently issued before a delete

Changes in version 1.1 beta 2 (6.8.2002)
----------------------------------------
* fixed a bug exporting schemas with identity columns
* implemented factory-level caching of collections
* Datastore.storeJar() contributed by Christian Meunier
* added <mapping jar="jarfile"> to hibernate.cfg.xml

Changes in version 1.1 beta 1 (4.8.2002)
----------------------------------------
* new Query API including named parameters, pageable results
* subqueries in Hibernate queries (only for databases that support subselects)
* new DocBook documentation (contributed by Christian Bauer)
* support collections .elements, .indices inside select clause (even in aggregate functions)
* don't load collections before removal unless absolutely necessary
* mutable="false" attribute in <class> element to map immutable classes
* use JDBC batch to insert collection elements if hibernate.use_jdbc2 is set
* brand new PreparedStatementCache
* improvements to MYSQL dialect for long datatypes
* always check isAccessible() before setAccessible(true)
* removed extra unnecessary table join in queries with one-to-many association
* removed ugly "WHERE 1=1" from generated SQL
* fixed exception mapping a class with no properties (fix by Rob Stokes)
* logging enhancements including SQLException logging
* reworked factory-level cache and integrated JCS support (thanks to Christian Meunier)
* fixed a bug with circular references in cached data
* removed blocking cache support
* now rendering outerjoins as "LEFT OUTER JOIN" because "LEFT JOIN" caused problems for some Sybase versions
* added default Hibernate properties to Dialects
* native id generation now falls back to sequence id generation when identity columns not supported by the dialect
* fixed some problems with native id generation under HSQL
* may now use Session.insert() even when using native id generation

Changes in version 1.0.1b (18.7.2002)
-------------------------------------
* fixed a bad bug in query parser when hibernate.query.substitutions was unset
* much improved build.xml Ant script
* latest c3p0.jar

Changes in version 1.0.1 (17.7.2002)
------------------------------------
* enabled use of scalar values and aggregate SQL functions in select clause of iterate() queries
* fixed bug in JNDI lookup for SessionFactory
* changed ordering of SQL inserts/deletes for child collections of a cascade-enabled association 
- better behaviour for some not-null constraints
- performance optimization for bidirectional many-to-one associations
* added hibernate.query.substitutions property to allow named query constants (eg. translate 'true' to '1')
* added locale type for java.util.Locale
* added sequence hi/lo generator (seqhilo.long)
* fixed bug where load(), onLoad() callbacks were sometimes called at wrong time
* fixed an exception (fix by Eric Everman) and improved identifier searching in MapGenerator tool 
* refactored SerializableType
* extra logging + error handling
* documentation enhancements

Changes in version 0.9.17 (3.7.2002)
------------------------------------
* Added UserType interface
* documented Lifecycle
* added some new trace messages to log
* bugfix to allow SQL functions like upper(), lower(), etc to work on all platforms
* documented SAP DB support (dialect contributed by Brad Clow)
* foreign key constraint export for SAP DB
* map index may be the composite-id of the element class (contributed by Jon Lipsky)
* fixes to CodeGenerator tool (contributed by Uros Jurglic)

Changes in version 0.9.16 (19.6.2002)
------------------------------------
* fixed bug cacheing objects with references to themselves
* support for composite ids of classes with no id property
* may now disable outer join (deep) fetching for an association by setting outer-join="false"
* enabled outer join fetching for one-to-one
* fixed a bug for mappings that specify class attribute of <one-to-many>
* fixed a bug where Hashbelt did not expire cached data in a timely fashion
* fixed a mistake in the mapping DTD
* new user-error check in update()

Changes in version 0.9.15 (15.6.2002)
------------------------------------
* one-to-one associations
* support for "tricky" mappings in SchemaExport tool (multiple properties to one column, etc)
* Transaction API contributed by Anton van Straaten
* SessionFactory may be bound to JNDI name by setting hibernate.session_factory_name
* Sessions are now Serializable!
* added Session.findIdentifiers() query methods
* new Lifecycle interface to replace deprecated PersistentLifecycle
* fixed problem where session did not autoflush on iterate() queries
* performance enhancements to collection dirty checking
* added Hibernate.configure() and configuration file format
* removed some deprecated methods
* refactored Type hierarchy
* query language identifiers now case sensitive (bugfix for case sensitive SQL dialects)
* username/password now optional for datasource (contributed by Emmanuel Bourg)
* much improved API documentation
* binary types now saved using streams if hibernate.use_streams_for_binary=true (contributed by Jon Lipsky)
* MySQL Strings now mapped to TEXT columns if length > 255 (contributed by Christoph Beck)

Changes in version 0.9.14 (4.6.2002)
-------------------------------------
* lifecycle objects - properties now have a cascade attribute to cascade save, update, delete
* composite id properties may now be used in queries eg. foo.id.bar (contributed by Jon Lipsky)
* slightly changed semantics of update() so it now also save()s new transient instances
* Session now flushes() itself less often before query execution (performance enhancement)
* fixed problem where Session.save() returned null instead of the natively generated id
* fixed bug with object identity for cached classes
* fixed bug where delete(x) could not be called after update(x)
* MUCH improved Exception hierarchy
* deprecated create()
* added sql-type attribute to <column> tag to allow user to override default type mapping
* deeper fetching with use_outer_join
* new ConnectionProvider framework
* fixed a bug where blocking cache could return stale data
* now working again in JDK1.2.2
* fixed problem with not-null associations + native key generation
* minor changes to PersistentLifecycle interface
* initial, minimal version of new Transaction mechanism
* MUCH improved documentation

Changes in version 0.9.13 (25.5.2002)
-------------------------------------
* Datastore.storeResource() to load mapping files from classpath
* fixed a problem executing under JDK1.3 when compiled from JDK1.4
* documentation improvements

Changes in version 0.9.12 (24.5.2002)
------------------------------------
* Session.update() methods to update a persistent instance from transient copy (as requested by many users)
* discriminator column name, type, length, etc now configurable by <discriminator> tag in mapping file
* discriminator column values configurable by discriminator-value attribute of <class> and <subclass> tags
* added Session.insert(object, id) for classes with no identifier property
* fixed another bad bug with connection handling (fix by Anton van Straaten)
* fixed a problem with deferred loading
* fixed a problem with sorted collections (fix by Anton van Straaten)
* nested collections of objects now require 2 SQL SELECTs to load, rather than size+1
* session is NO LONGER atomic - application should discard session when exception occurs
* fixed problem where character type was mapped to VARCHAR column
* arrays of proxies now possible by using new element-class attribute of <array> tag
* fixed various problems with proxies
* added proxy generation tool
* proxy unit tests
* replaced two RuntimeExceptions with checked exceptions
* made hibernate.username/hibernate.password optional for DriverManager
* CodeGenerator now supports all hibernate basic types
* much improved caching algorithm for compiled queries
* may now specify properties simply by placing hibernate.properties in classpath
* documentation improvements + fixes
* --abstract switch to MapGenerator (contributed by Eric Everman)

Changes in version 0.9.11 (12.5.2002)
------------------------------------
* fixed major bug with connection handling (fix by Anton van Straaten)

Changes in version 0.9.10 (11.5.2002)
------------------------------------
* set a default schema name using SessionFactory property hibernate.default_schema
* code generator tool contributed by Brad Clow (www.workingmouse.com)
* lazy object initialization under JDK 1.3 and above
* fixed some error messages to go to logging framework, not stdout
* new system property hibernate.show_sql=true logs all executed SQL to stdout
* integration of bugfixes in c3p0
* wrap IllegalArgumentExceptions in HibernateExceptions
* added ObjectNotFoundException and StaleObjectStateException
* fixed a bug when using schemas
* new caching strategy (and documented cache feature)

Changes in version 0.9.9 (25.4.2002)
-----------------------------------
* sorted sets and maps (thanks to Doug Currie)
* mapping files may now be loaded using getResourceAsStream() (thanks to Markus Meissner)
* hibernate messages now logged by Apache commons-logging
* default hi/lo generator table now has column named "next_id", instead of "next"
* query language may now refer to identifier property name (eg. foo.fooKey as alternative to foo.id)
* hibernate.jndi_class, hibernate.jndi_url now optional when using datasource
* hibernate now throws an exception if you try to persist an object with a reference to a transient object
* improved connection pooling algorithm (hibernate.pool_size limits pooled conections)
* very experimental integration of c3p0 JDBC connection pool (http://sourceforge.net/projects/c3p0)
* now compiles under JDK 1.2.2
* fixed bug persisting null components
* fixed bug where cached prepared statements were not cleaned up after disconnect() session
* fixed a null pointer exception in MappingByReflection

Changes in version 0.9.8 (13.3.2002)
-----------------------------------
* supports database native key generation in Sybase, MS SQL, MySQL, DB2, Hypersonic (contributed by Christoph Sturm)
* supports Mckoi (dialect contributed by Doug Currie)
* supports Progress (dialect contributed by Phillip Baird)
* added exceptions to catch Session reentrancy from PersistentLifecycle.load() + store()
* experimental cross-transaction cache
* Session.lock() and Session.loadWithLock() for pessimistic locking
* HiLoGenerators may now use their own DriverManager connection properties + may now use same table across diff mapping files
* Session.flush(), Session.close() and Session.connection() replace Session.commit(), Session.cancel()
* Session.disconnect() and Session.reconnect() for long transactions
* added single JVM id generators vm.long, vm.hex
* added unique column constraints to mappings
* extensions to IDGenerator framework
* support sequence-style ID generation in Oracle, PostgreSQL, DB2, Interbase

* fixed problem where subcollections of a collection that changed roles would be deleted
* changed class loading strategy to be compatible with JBoss
* stopped queries retrieving unnecessary columns
* mutable types (binary + serializable) now always detected as dirty

Changes in version 0.9.7 (26.2.2002)
-----------------------------------
* save() now safe from foreign key violations (so create() is no longer preferred method of adding data)
* delete() now completely safe from foreign key violations - it no longer matters what order objects are deleted in
* removed Session.copy()
* hilo generators now NOT for use with application server datasources

* fixed two intermittent bugs in queries
* fixed a problem where components not detected as dirty
* fixed broken hilo generator which was not updating database
* fixed a minor bug when hibernate.use_outer_join was set

Changes in version 0.9.6 (24.2.2002)
-----------------------------------
* experimental XML generation
* added support for bi-directional associations (one-to-set, set-to-set) with <set readonly="true"> config
* reflective generation of mappings tool was contributed by Doug Currie
* Session operations now atomic, so exceptions are recoverable
* made ID properties optional in persistent classes
* support for multiple schemas through schema attribute of <hibernate-mapping>, <class>, <set>, <map>, etc.
* auto-creation of tables for hilo id generators (restriction: cannot use same table from more than one mapping file)
* added some more assertions to catch user "mistakes" like deleting transient or saving persistent objects

* major rework of collections and fixed some bad bugs
* lazy initialization re-enabled for one-to-many associations (thanks to Georg Schneemayer)
* fixed a problem in the mapping DTD to allow nested components in collections
* fixed a BAD bug in RelationalDatabaseSession when loading objects with PersistentLifecycle callbacks (thanks to Paul Szego)
* fixed problems with quoted strings in query language
* fixed a bug where a stack overflow occurred instead of HibernateException thrown (thanks to Georg Schneemayer)
* fixed a bug deleting updated versioned data
* fixed some problems with name generation for indexes + foreign keys
* fixed problem in Sun JDK 1.4 (only?) where IllegalArgumentException was not handled
* minor improvements to handling of dates and times
* HiLoGenerator now safe for all transaction isolation levels + safe when rollback occurs
* noticed and fixed obscure piece of nonthreadsafe code outside of core persistence engine
* removed unnecessary drop constraints for some dialects

* MUCH more comprehensive test suite

* changed some terminology used in documentation
* added javadoc for API classes
* commented the mapping DTD

Changes in version 0.9.5 (8.2.2002)
-----------------------------------
* supports HypersonicSQL (dialect contributed by Phillip Baird)
* supports Microsoft SQL server (with third party JDBC driver)
* proper command-line tool for schema generation and export
* deprecated the interface cirrus.hibernate.Persistent (due to popular demand)
* changes to hibernate-mapping DTD (required to support optional Persistent interface):
- deprecated <property type="package.PersistentClassName"/> in favor of <many-to-one class="package.PersistentClassName"/>
- deprecated <element type="package.PersistentClassName"/> in favor of <many-to-many class="package.PersistentClassName"/>
- deprecated <property role="..."/> in favor of <collection role="..."/>
- deprecated <element role=".."/> in favor of <subcollection role="..."/>
- deprecated <association> in favor of <one-to-many>
* class attribute optional in <component> and <composite-id> tags (determined by reflection)
* querying components of components now supported
* one-shot table creation (no use of unportable "alter table")
* time dataype support
* reflective mappings of java.sql.Time, java.sql.Timestamp, java.sql.Date
* fixed error msg thrown when class is missing a method but has a superclass
* property names now conform to JavaBean spec ("foo" instead of "Foo"). Note that "Foo" still works
* constructors of persistent classes may now be non-public
* collection indexes now mapped to not-null columns
* fixed obscure bug with querying collections inside components of components
* fixed potential bug related to cacheing of compiled queries
* major rewrite of code relating to O-R mappings
* Session.copy() and Session.equals() as convenience for users
* fixed repeated invocations of hasNext() on iterator + iterators now always work with distinct SQL resultsets
* McKoi dialect was contributed by Gabe Hicks

Changes in version 0.9.4 (29.1.2002)
------------------------------------
* fixed BAD bug where XML parsing would not work for parsers other than Xerces - thanks to Christian Winkler
* added some more assertions to catch user "mistakes" like changing ids or reusing existing ids

Changes in version 0.9.3 (27.1.2002)
------------------------------------
* repackaged (corrupted DatasourceConnectionProvider.class)
* better exception reporting using datasource
* added Datastore.storeClass() which looks for mapping file in classpath (class foo.Bar -> foo/Bar.hbm.xml)
* improved documentation

Changes in version 0.9.2 (25.1.2002)
------------------------------------
* iterate over query results (lazy instantiation of query results)
* added "select foo, bar" style queries returning multiple objects per row
* delete by query
* composite key support
* outer joins for faster (?) loading of associated objects ( set "hibernate.use_outer_join" to "true" )
* connection pooling when using DriverManager
* foreign key constraint from unkeyed collection table to owner entity table
* improved drop tables script execution (still not infallible)
* added <composite-element> tag
* added not-null properties and elements
* added an optimisation for dates and components
* made some XML attributes optional
* fixed errors in documentation + documented some extra features
* bugfix: store() not getting called on lifecycle interface
* bugfix: schema generation for indexed associations
* added many tests

Changes in version 0.9.1 (20.1.2002)
------------------------------------
Too many to list

Changes in version 0.8.1 (30.11.2001)
-------------------------------------
Initial alpha version