HHH-15522 Implement a LazyInitializable interface that PersistentCollection and Envers collections extend or implement. Improve related tests.
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e218b8f127
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@ -20,6 +20,7 @@ import org.hibernate.engine.spi.SessionImplementor;
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import org.hibernate.engine.spi.SharedSessionContractImplementor;
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import org.hibernate.proxy.HibernateProxy;
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import org.hibernate.proxy.LazyInitializer;
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import org.hibernate.collection.spi.LazyInitializable;
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/**
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* <ul>
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@ -61,8 +62,8 @@ public final class Hibernate {
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if ( proxy instanceof HibernateProxy ) {
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( (HibernateProxy) proxy ).getHibernateLazyInitializer().initialize();
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}
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else if ( proxy instanceof PersistentCollection ) {
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( (PersistentCollection) proxy ).forceInitialization();
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else if ( proxy instanceof LazyInitializable ) {
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( (LazyInitializable) proxy ).forceInitialization();
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}
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else if ( proxy instanceof PersistentAttributeInterceptable ) {
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final PersistentAttributeInterceptable interceptable = (PersistentAttributeInterceptable) proxy;
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@ -91,8 +92,8 @@ public final class Hibernate {
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}
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return true;
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}
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else if ( proxy instanceof PersistentCollection ) {
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return ( (PersistentCollection) proxy ).wasInitialized();
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else if ( proxy instanceof LazyInitializable ) {
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return ( (LazyInitializable) proxy ).wasInitialized();
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}
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else {
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return true;
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@ -0,0 +1,33 @@
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/*
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* Hibernate, Relational Persistence for Idiomatic Java
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*
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* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
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* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
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*/
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package org.hibernate.collection.spi;
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import org.hibernate.Incubating;
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/**
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* Hibernate "wraps" a java collection in an instance of PersistentCollection. Envers uses custom collection
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* wrappers (ListProxy, SetProxy, etc). All of them need to extend LazyInitializable, so the
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* Hibernate.isInitialized method can check if the collection is initialized or not.
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*
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* @author Fabricio Gregorio
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*/
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@Incubating
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public interface LazyInitializable {
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/**
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* Is this instance initialized?
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*
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* @return Was this collection initialized? Or is its data still not (fully) loaded?
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*/
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boolean wasInitialized();
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/**
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* To be called internally by the session, forcing immediate initialization.
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*/
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void forceInitialization();
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}
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@ -45,7 +45,7 @@ import org.hibernate.type.Type;
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*
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* @author Gavin King
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*/
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public interface PersistentCollection {
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public interface PersistentCollection extends LazyInitializable {
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/**
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* Get the owning entity. Note that the owner is only
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* set during the flush cycle, and when a new collection
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@ -271,11 +271,6 @@ public interface PersistentCollection {
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*/
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Serializable getSnapshot(CollectionPersister persister);
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/**
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* To be called internally by the session, forcing immediate initialization.
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*/
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void forceInitialization();
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/**
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* Does the given element/entry exist in the collection?
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*
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@ -335,13 +330,6 @@ public interface PersistentCollection {
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*/
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boolean isWrapper(Object collection);
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/**
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* Is this instance initialized?
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*
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* @return Was this collection initialized? Or is its data still not (fully) loaded?
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*/
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boolean wasInitialized();
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/**
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* Does this instance have any "queued" operations?
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*
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@ -9,13 +9,15 @@ package org.hibernate.envers.internal.entities.mapper.relation.lazy.proxy;
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import java.io.Serializable;
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import java.util.Collection;
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import java.util.Iterator;
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import org.hibernate.collection.spi.LazyInitializable;
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import org.hibernate.envers.internal.entities.mapper.relation.lazy.initializor.Initializor;
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/**
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* @author Adam Warski (adam at warski dot org)
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*/
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public abstract class CollectionProxy<U, T extends Collection<U>> implements Collection<U>, Serializable {
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public abstract class CollectionProxy<U, T extends Collection<U>> implements Collection<U>, LazyInitializable, Serializable {
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private static final long serialVersionUID = 8698249863871832402L;
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private transient org.hibernate.envers.internal.entities.mapper.relation.lazy.initializor.Initializor<T> initializor;
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@ -34,6 +36,16 @@ public abstract class CollectionProxy<U, T extends Collection<U>> implements Col
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}
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}
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@Override
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public final boolean wasInitialized() {
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return delegate != null;
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}
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@Override
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public final void forceInitialization() {
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checkInit();
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}
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@Override
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public int size() {
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checkInit();
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@ -118,7 +130,7 @@ public abstract class CollectionProxy<U, T extends Collection<U>> implements Col
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return delegate.toString();
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}
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@SuppressWarnings({"EqualsWhichDoesntCheckParameterClass"})
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@SuppressWarnings({ "EqualsWhichDoesntCheckParameterClass" })
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@Override
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public boolean equals(Object obj) {
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checkInit();
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@ -10,13 +10,14 @@ import java.io.Serializable;
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import java.util.Collection;
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import java.util.Map;
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import java.util.Set;
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import org.hibernate.collection.spi.LazyInitializable;
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import org.hibernate.envers.internal.entities.mapper.relation.lazy.initializor.Initializor;
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/**
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* @author Adam Warski (adam at warski dot org)
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*/
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public class MapProxy<K, V> implements Map<K, V>, Serializable {
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public class MapProxy<K, V> implements Map<K, V>, LazyInitializable, Serializable {
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private static final long serialVersionUID = 8418037541773074646L;
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private transient Initializor<Map<K, V>> initializor;
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@ -35,6 +36,16 @@ public class MapProxy<K, V> implements Map<K, V>, Serializable {
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}
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}
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@Override
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public final boolean wasInitialized() {
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return delegate != null;
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}
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@Override
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public final void forceInitialization() {
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checkInit();
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}
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@Override
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public int size() {
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checkInit();
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@ -114,7 +125,7 @@ public class MapProxy<K, V> implements Map<K, V>, Serializable {
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}
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@Override
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@SuppressWarnings({"EqualsWhichDoesntCheckParameterClass"})
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@SuppressWarnings({ "EqualsWhichDoesntCheckParameterClass" })
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public boolean equals(Object obj) {
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checkInit();
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return delegate.equals( obj );
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@ -12,13 +12,14 @@ import java.util.Comparator;
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import java.util.Map;
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import java.util.Set;
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import java.util.SortedMap;
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import org.hibernate.collection.spi.LazyInitializable;
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import org.hibernate.envers.internal.entities.mapper.relation.lazy.initializor.Initializor;
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/**
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* @author Adam Warski (adam at warski dot org)
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*/
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public class SortedMapProxy<K, V> implements SortedMap<K, V>, Serializable {
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public class SortedMapProxy<K, V> implements SortedMap<K, V>, LazyInitializable, Serializable {
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private static final long serialVersionUID = 2645817952901452375L;
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private transient Initializor<SortedMap<K, V>> initializor;
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@ -37,6 +38,16 @@ public class SortedMapProxy<K, V> implements SortedMap<K, V>, Serializable {
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}
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}
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@Override
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public final boolean wasInitialized() {
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return delegate != null;
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}
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@Override
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public final void forceInitialization() {
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checkInit();
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}
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@Override
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public int size() {
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checkInit();
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@ -146,7 +157,7 @@ public class SortedMapProxy<K, V> implements SortedMap<K, V>, Serializable {
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}
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@Override
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@SuppressWarnings({"EqualsWhichDoesntCheckParameterClass"})
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@SuppressWarnings({ "EqualsWhichDoesntCheckParameterClass" })
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public boolean equals(Object o) {
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checkInit();
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return delegate.equals( o );
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@ -7,8 +7,9 @@
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package org.hibernate.envers.test.entities.collection;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.Objects;
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import javax.persistence.CascadeType;
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import javax.persistence.Column;
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import javax.persistence.Entity;
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@ -26,6 +27,7 @@ import org.hibernate.envers.Audited;
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@Entity
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@Audited
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public class MultipleCollectionEntity {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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@Column(name = "ID", length = 10)
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@ -65,7 +67,7 @@ public class MultipleCollectionEntity {
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}
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public List<MultipleCollectionRefEntity1> getRefEntities1() {
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return Collections.unmodifiableList( refEntities1 );
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return refEntities1;
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}
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public void addRefEntity1(MultipleCollectionRefEntity1 refEntity1) {
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@ -77,7 +79,7 @@ public class MultipleCollectionEntity {
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}
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public List<MultipleCollectionRefEntity2> getRefEntities2() {
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return Collections.unmodifiableList( refEntities2 );
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return refEntities2;
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}
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public void addRefEntity2(MultipleCollectionRefEntity2 refEntity2) {
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@ -110,34 +112,20 @@ public class MultipleCollectionEntity {
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}
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@Override
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public boolean equals(Object o) {
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if ( this == o ) {
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return true;
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}
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if ( !(o instanceof MultipleCollectionEntity) ) {
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return false;
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}
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MultipleCollectionEntity that = (MultipleCollectionEntity) o;
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if ( refEntities1 != null ? !refEntities1.equals( that.refEntities1 ) : that.refEntities1 != null ) {
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return false;
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}
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if ( refEntities2 != null ? !refEntities2.equals( that.refEntities2 ) : that.refEntities2 != null ) {
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return false;
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}
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if ( text != null ? !text.equals( that.text ) : that.text != null ) {
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return false;
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}
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return true;
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public int hashCode() {
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return Objects.hash( id );
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}
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@Override
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public int hashCode() {
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int result = text != null ? text.hashCode() : 0;
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result = 31 * result + (refEntities1 != null ? refEntities1.hashCode() : 0);
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result = 31 * result + (refEntities2 != null ? refEntities2.hashCode() : 0);
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return result;
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public boolean equals(Object obj) {
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if ( this == obj )
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return true;
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if ( obj == null )
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return false;
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if ( getClass() != obj.getClass() )
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return false;
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MultipleCollectionEntity other = (MultipleCollectionEntity) obj;
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return Objects.equals( id, other.id );
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}
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}
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@ -77,6 +77,7 @@ public class IsCollectionInitializedBytecodeEnhancementTest extends BaseEnversJP
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}
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@Test
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@SuppressWarnings("unchecked")
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public void testIsInitialized() {
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EntityManager em = getEntityManager();
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@ -88,6 +89,10 @@ public class IsCollectionInitializedBytecodeEnhancementTest extends BaseEnversJP
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MultipleCollectionEntity ret = res.get( 0 );
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assertEquals( Hibernate.isInitialized( ret.getRefEntities1() ), false );
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Hibernate.initialize(ret.getRefEntities1());
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assertEquals( Hibernate.isInitialized( ret.getRefEntities1() ), true );
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}
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}
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@ -72,6 +72,7 @@ public class IsCollectionInitializedTest extends BaseEnversJPAFunctionalTestCase
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}
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@Test
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@SuppressWarnings("unchecked")
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public void testIsInitialized() {
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EntityManager em = getEntityManager();
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@ -81,8 +82,12 @@ public class IsCollectionInitializedTest extends BaseEnversJPAFunctionalTestCase
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.getResultList();
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MultipleCollectionEntity ret = res.get( 0 );
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assertEquals( Hibernate.isInitialized( ret.getRefEntities1() ), false );
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Hibernate.initialize(ret.getRefEntities1());
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assertEquals( Hibernate.isInitialized( ret.getRefEntities1() ), true );
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}
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}
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