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HHH-10602 - Retrieve cached value with enable_lazy_load_no_trans throws an exception

This commit is contained in:
Janario Oliveira 2016-03-07 22:29:52 -03:00 committed by Vlad Mihalcea
parent cf27164532
commit 0385b1436a
3 changed files with 236 additions and 35 deletions
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41
hibernate-core/src/main/java/org/hibernate/collection/internal/AbstractPersistentCollection.java
View File

@ -56,6 +56,7 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
private static final CoreMessageLogger LOG = CoreLogging.messageLogger( AbstractPersistentCollection.class );
private transient SessionImplementor session;
private boolean isTempSession = false;
private boolean initialized;
private transient List<DelayedOperation> operationQueue;
private transient boolean directlyAccessible;
@ -190,14 +191,11 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
}
private <T> T withTemporarySessionIfNeeded(LazyInitializationWork<T> lazyInitializationWork) {
SessionImplementor originalSession = null;
boolean isTempSession = false;
boolean isJTA = false;
SessionImplementor tempSession = null;
if ( session == null ) {
if ( allowLoadOutsideTransaction ) {
session = openTemporarySessionForLoading();
isTempSession = true;
tempSession = openTemporarySessionForLoading();
}
else {
throwLazyInitializationException( "could not initialize proxy - no Session" );
@ -205,9 +203,7 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
}
else if ( !session.isOpen() ) {
if ( allowLoadOutsideTransaction ) {
originalSession = session;
session = openTemporarySessionForLoading();
isTempSession = true;
tempSession = openTemporarySessionForLoading();
}
else {
throwLazyInitializationException( "could not initialize proxy - the owning Session was closed" );
@ -215,16 +211,23 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
}
else if ( !session.isConnected() ) {
if ( allowLoadOutsideTransaction ) {
originalSession = session;
session = openTemporarySessionForLoading();
isTempSession = true;
tempSession = openTemporarySessionForLoading();
}
else {
throwLazyInitializationException( "could not initialize proxy - the owning Session is disconnected" );
}
}
if ( isTempSession ) {
SessionImplementor originalSession = null;
boolean isJTA = false;
if ( tempSession != null ) {
isTempSession = true;
originalSession = session;
session = tempSession;
isJTA = session.getTransactionCoordinator().getTransactionCoordinatorBuilder().isJta();
if ( !isJTA ) {
@ -246,18 +249,20 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
return lazyInitializationWork.doWork();
}
finally {
if ( isTempSession ) {
if ( tempSession != null ) {
// make sure the just opened temp session gets closed!
isTempSession = false;
session = originalSession;
try {
if ( !isJTA ) {
( (Session) session ).getTransaction().commit();
( (Session) tempSession ).getTransaction().commit();
}
( (Session) session ).close();
( (Session) tempSession ).close();
}
catch (Exception e) {
LOG.warn( "Unable to close temporary session used to load lazy collection associated to no session" );
}
session = originalSession;
}
}
}
@ -601,7 +606,9 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
public final boolean unsetSession(SessionImplementor currentSession) {
prepareForPossibleLoadingOutsideTransaction();
if ( currentSession == this.session ) {
this.session = null;
if ( !isTempSession ) {
this.session = null;
}
return true;
}
else {

41
hibernate-core/src/main/java/org/hibernate/type/CollectionType.java
View File

@ -731,25 +731,30 @@ public abstract class CollectionType extends AbstractType implements Association
collection = persistenceContext.useUnownedCollection( new CollectionKey(persister, key, entityMode) );
if ( collection == null ) {
// create a new collection wrapper, to be initialized later
collection = instantiate( session, persister, key );
collection.setOwner(owner);
persistenceContext.addUninitializedCollection( persister, collection, key );
// some collections are not lazy:
if ( initializeImmediately() ) {
session.initializeCollection( collection, false );
collection = persistenceContext.getCollection( new CollectionKey(persister, key, entityMode) );
if ( collection == null ) {
// create a new collection wrapper, to be initialized later
collection = instantiate( session, persister, key );
collection.setOwner( owner );
persistenceContext.addUninitializedCollection( persister, collection, key );
// some collections are not lazy:
if ( initializeImmediately() ) {
session.initializeCollection( collection, false );
}
else if ( !persister.isLazy() ) {
persistenceContext.addNonLazyCollection( collection );
}
if ( hasHolder() ) {
session.getPersistenceContext().addCollectionHolder( collection );
}
}
else if ( !persister.isLazy() ) {
persistenceContext.addNonLazyCollection( collection );
}
if ( hasHolder() ) {
session.getPersistenceContext().addCollectionHolder( collection );
}
}
if ( LOG.isTraceEnabled() ) {

189
hibernate-core/src/test/java/org/hibernate/test/ondemandload/cache/CacheLazyLoadNoTransTest.java vendored Normal file
View File

@ -0,0 +1,189 @@
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.test.ondemandload.cache;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.persistence.Cacheable;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToMany;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import org.hibernate.Session;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
import org.hibernate.cache.spi.access.CollectionRegionAccessStrategy;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.cfg.Environment;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.testing.junit4.BaseNonConfigCoreFunctionalTestCase;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author Janario Oliveira
*/
public class CacheLazyLoadNoTransTest extends BaseNonConfigCoreFunctionalTestCase {
@SuppressWarnings("unchecked")
@Override
protected void addSettings(Map settings) {
super.addSettings( settings );
settings.put( AvailableSettings.ENABLE_LAZY_LOAD_NO_TRANS, "true" );
settings.put( Environment.USE_SECOND_LEVEL_CACHE, "true" );
settings.put( Environment.USE_QUERY_CACHE, "true" );
settings.put( Environment.CACHE_PROVIDER_CONFIG, "true" );
}
@Test
public void testOneToMany() {
Customer customer = new Customer();
Item item1 = new Item( customer );
Item item2 = new Item( customer );
customer.boughtItems.add( item1 );
customer.boughtItems.add( item2 );
persist( customer );
//init cache
assertFalse( isCached( customer.id, Customer.class, "boughtItems" ) );
customer = find( Customer.class, customer.id );
assertEquals( 2, customer.boughtItems.size() );
//read from cache
assertTrue( isCached( customer.id, Customer.class, "boughtItems" ) );
customer = find( Customer.class, customer.id );
assertEquals( 2, customer.boughtItems.size() );
}
@Test
public void testManyToMany() {
Application application = new Application();
persist( application );
Customer customer = new Customer();
customer.applications.add( application );
application.customers.add( customer );
persist( customer );
//init cache
assertFalse( isCached( customer.id, Customer.class, "applications" ) );
assertFalse( isCached( application.id, Application.class, "customers" ) );
customer = find( Customer.class, customer.id );
assertEquals( 1, customer.applications.size() );
application = find( Application.class, application.id );
assertEquals( 1, application.customers.size() );
assertTrue( isCached( customer.id, Customer.class, "applications" ) );
assertTrue( isCached( application.id, Application.class, "customers" ) );
//read from cache
customer = find( Customer.class, customer.id );
assertEquals( 1, customer.applications.size() );
application = find( Application.class, application.id );
assertEquals( 1, application.customers.size() );
}
private void persist(Object entity) {
Session session = openSession();
session.beginTransaction();
session.persist( entity );
session.getTransaction().commit();
session.close();
}
private <E> E find(Class<E> entityClass, int id) {
Session session;
session = openSession();
E customer = session.get( entityClass, id );
session.close();
return customer;
}
private boolean isCached(Serializable id, Class<?> entityClass, String attr) {
Session session = openSession();
CollectionPersister persister = sessionFactory().getCollectionPersister( entityClass.getName() + "." + attr );
CollectionRegionAccessStrategy cache = persister.getCacheAccessStrategy();
Object key = cache.generateCacheKey( id, persister, sessionFactory(), session.getTenantIdentifier() );
Object cachedValue = cache.get(
( (SessionImplementor) session ),
key,
( (SessionImplementor) session ).getTimestamp()
);
session.close();
return cachedValue != null;
}
@Override
protected Class[] getAnnotatedClasses() {
return new Class[] {Application.class, Customer.class, Item.class};
}
@Entity
@Table(name = "application")
@Cacheable
public static class Application {
@Id
@GeneratedValue
private Integer id;
@ManyToMany(mappedBy = "applications")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
private List<Customer> customers = new ArrayList<>();
}
@Entity
@Table(name = "customer")
@Cacheable
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public static class Customer {
@Id
@GeneratedValue
private Integer id;
@ManyToMany
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
private List<Application> applications = new ArrayList<>();
@OneToMany(mappedBy = "customer", cascade = CascadeType.ALL)
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
private List<Item> boughtItems = new ArrayList<>();
}
@Entity
@Table(name = "item")
@Cacheable
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public static class Item {
@Id
@GeneratedValue
private Integer id;
@ManyToOne
@JoinColumn(name = "customer_id")
private Customer customer;
protected Item() {
}
public Item(Customer customer) {
this.customer = customer;
}
}
}