51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
= 6.3 Migration Guide
|
|
:toc:
|
|
:toclevels: 4
|
|
:docsBase: https://docs.jboss.org/hibernate/orm
|
|
:versionDocBase: {docsBase}/6.3
|
|
:userGuideBase: {versionDocBase}/userguide/html_single/Hibernate_User_Guide.html
|
|
:javadocsBase: {versionDocBase}/javadocs
|
|
|
|
|
|
This guide discusses migration to Hibernate ORM version 6.3. For migration from
|
|
earlier versions, see any other pertinent migration guides as well.
|
|
|
|
* link:{docsBase}/6.2/migration-guide/migration-guide.html[6.2 Migration guide]
|
|
* link:{docsBase}/6.1/migration-guide/migration-guide.html[6.1 Migration guide]
|
|
* link:{docsBase}/6.0/migration-guide/migration-guide.html[6.0 Migration guide]
|
|
|
|
[[hql-numeric-literal-types]]
|
|
== HQL Numeric Literal Types
|
|
|
|
Version 3.2 of the Jakarta Persistence specification
|
|
https://github.com/jakartaee/persistence/issues/423[clarifies] the interpretation of
|
|
numeric literals with regard to type, explicitly aligning with the Java specification (as well
|
|
as adopting Hibernate's long-standing `BigInteger` and `BigDecimal` suffixes).
|
|
HQL and JPQL are domain/object-level queries, so that makes perfect sense.
|
|
|
|
* `Integer` - 123
|
|
* `Long` - 123l, 123L
|
|
* `BigInteger` - 123bi, 123BI
|
|
* `Double` - 123.4
|
|
* `Float` - 123.4f, 123.4F
|
|
* `BigDecimal` - 123.4bd, 123.4BD
|
|
|
|
Hibernate 6.3 aligns with those interpretations, which may lead to different behavior
|
|
from prior versions.
|
|
|
|
|
|
[[batch-fetching-changes]]
|
|
== Batch Fetching and LockMode
|
|
|
|
When LockMode is greater than READ Hibernate does not execute the batch fetching so existing uninitialized proxies will not be initialized.
|
|
This because the lock mode is different from the one of the proxies in the batch fetch queue.
|
|
|
|
E.g.
|
|
|
|
```java
|
|
MyEntity proxy = session.getReference( MyEntity.class, 1 );
|
|
MyEntity myEntity = session.find(MyEntity.class, 2, LockMode.WRITE);
|
|
```
|
|
|
|
only the entity with id equals to 2 will be loaded but the proxy will not be initialized.
|