HHH-18476 Reset resolved entities after resolveEntityKeyOnly and improve loading further
This commit is contained in:
Christian Beikov
parent
062afdb6cd
commit
f8a6106ea2
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@ -8,9 +8,9 @@ package org.hibernate.metamodel.mapping.internal;
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import java.io.Serializable;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.List;
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import java.util.Locale;
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import java.util.Set;
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import java.util.function.Consumer;
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import org.hibernate.MappingException;
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@ -93,6 +93,11 @@ public abstract class AbstractEmbeddableMapping implements EmbeddableMappingType
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return 0;
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}
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@Override
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public Collection<ConcreteEmbeddableType> getConcreteEmbeddableTypes() {
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return Collections.singleton( this );
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}
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@Override
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public boolean declaresAttribute(AttributeMapping attributeMapping) {
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return true;
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@ -9,6 +9,7 @@ package org.hibernate.metamodel.mapping.internal;
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import java.io.Serializable;
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import java.util.BitSet;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Locale;
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import java.util.Map;
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@ -871,7 +872,9 @@ public class EmbeddableMappingTypeImpl extends AbstractEmbeddableMapping impleme
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@Override
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public Collection<ConcreteEmbeddableType> getConcreteEmbeddableTypes() {
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//noinspection unchecked
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return (Collection<ConcreteEmbeddableType>) (Collection<?>) concreteEmbeddableBySubclass.values();
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return concreteEmbeddableBySubclass == null
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? Collections.singleton( this )
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: (Collection<ConcreteEmbeddableType>) (Collection<?>) concreteEmbeddableBySubclass.values();
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}
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@Override
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@ -464,6 +464,19 @@ public abstract class AbstractImmediateCollectionInitializer<Data extends Abstra
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initializeSubInstancesFromParent( data );
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}
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@Override
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public boolean hasLazySubInitializers() {
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final DomainResultAssembler<?> indexAssembler = getIndexAssembler();
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if ( indexAssembler != null ) {
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final Initializer<?> initializer = indexAssembler.getInitializer();
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if ( initializer != null && ( !initializer.isEager() || initializer.hasLazySubInitializers() ) ) {
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return true;
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}
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}
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final Initializer<?> initializer = getElementAssembler().getInitializer();
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return initializer != null && ( !initializer.isEager() || initializer.hasLazySubInitializers() );
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}
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@Override
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public void accept(Data data, List<Object> objects) {
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readCollectionRow( data, objects );
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@ -6,9 +6,13 @@
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*/
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package org.hibernate.sql.results.graph.embeddable;
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import java.util.function.Consumer;
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import org.hibernate.metamodel.mapping.EmbeddableValuedModelPart;
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import org.hibernate.sql.results.graph.InitializerData;
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import org.hibernate.sql.results.graph.InitializerParent;
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import org.hibernate.sql.results.jdbc.spi.JdbcValuesSourceProcessingState;
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import org.hibernate.sql.results.jdbc.spi.RowProcessingState;
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import org.checkerframework.checker.nullness.qual.Nullable;
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@ -34,4 +38,13 @@ public interface EmbeddableInitializer<Data extends InitializerData> extends Ini
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return this;
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}
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/**
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* Resets the resolved entity registrations by i.e. removing {@link org.hibernate.engine.spi.EntityHolder}.
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*
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* This is used after {@link org.hibernate.sql.results.graph.entity.EntityInitializer#resolveEntityKeyOnly(RowProcessingState)}
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* to deregister registrations for entities that were only resolved, but not initialized.
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* Failing to do this will lead to errors, because {@link org.hibernate.engine.spi.PersistenceContext#postLoad(JdbcValuesSourceProcessingState, Consumer)}
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* is called, which expects all registrations to be fully initialized.
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*/
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void resetResolvedEntityRegistrations(RowProcessingState rowProcessingState);
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}
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@ -27,6 +27,7 @@ import org.hibernate.spi.NavigablePath;
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import org.hibernate.sql.results.graph.AssemblerCreationState;
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import org.hibernate.sql.results.graph.DomainResultAssembler;
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import org.hibernate.sql.results.graph.Fetch;
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import org.hibernate.sql.results.graph.FetchParent;
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import org.hibernate.sql.results.graph.Fetchable;
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import org.hibernate.sql.results.graph.Initializer;
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import org.hibernate.sql.results.graph.InitializerData;
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@ -64,7 +65,7 @@ public class EmbeddableInitializerImpl extends AbstractInitializer<EmbeddableIni
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protected final BasicResultAssembler<?> discriminatorAssembler;
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protected final @Nullable Initializer<InitializerData>[][] subInitializers;
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protected final @Nullable Initializer<InitializerData>[][] subInitializersForResolveFromInitialized;
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// protected final BitSet eagerSubInitializers;
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protected final @Nullable Initializer<InitializerData>[][] collectionContainingSubInitializers;
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protected final boolean lazyCapable;
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protected final boolean hasLazySubInitializer;
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@ -118,43 +119,83 @@ public class EmbeddableInitializerImpl extends AbstractInitializer<EmbeddableIni
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// We never want to create empty composites for the FK target or PK, otherwise collections would break
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this.createEmptyCompositesEnabled = !isPartOfKey && embeddableMappingType.isCreateEmptyCompositesEnabled();
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this.sessionFactory = creationState.getSqlAstCreationContext().getSessionFactory();
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this.assemblers = createAssemblers(
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resultDescriptor,
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creationState,
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embeddableMappingType
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);
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this.discriminatorAssembler = discriminatorFetch != null ?
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(BasicResultAssembler<?>) discriminatorFetch.createAssembler( this, creationState ) :
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null;
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this.subInitializers = createInitializers( assemblers );
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final Collection<EmbeddableMappingType.ConcreteEmbeddableType> concreteEmbeddableTypes = embeddableMappingType.getConcreteEmbeddableTypes();
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final DomainResultAssembler<?>[][] assemblers = new DomainResultAssembler[concreteEmbeddableTypes.isEmpty() ? 1 : concreteEmbeddableTypes.size()][];
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final @Nullable Initializer<InitializerData>[][] subInitializers = new Initializer[assemblers.length][];
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final @Nullable Initializer<InitializerData>[][] eagerSubInitializers = new Initializer[subInitializers.length][];
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final @Nullable Initializer<InitializerData>[][] collectionContainingSubInitializers = new Initializer[subInitializers.length][];
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final int numberOfFetchables = embeddableMappingType.getNumberOfFetchables();
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Arrays.fill( subInitializers, Initializer.EMPTY_ARRAY );
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Arrays.fill( eagerSubInitializers, Initializer.EMPTY_ARRAY );
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// final BitSet eagerSubInitializers = new BitSet(subInitializers.length * embeddableMappingType.getNumberOfFetchables());
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Arrays.fill( collectionContainingSubInitializers, Initializer.EMPTY_ARRAY );
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for (int i = 0; i < assemblers.length; i++ ) {
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assemblers[i] = new DomainResultAssembler[numberOfFetchables];
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}
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boolean lazyCapable = false;
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boolean hasLazySubInitializers = false;
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for ( int subclassId = 0; subclassId < subInitializers.length; subclassId++ ) {
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final Initializer<InitializerData>[] subInitializer = subInitializers[subclassId];
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for ( int i = 0; i < subInitializer.length; i++ ) {
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final Initializer<InitializerData> initializer = subInitializer[i];
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if ( initializer != null ) {
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if ( initializer.isEager() ) {
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for ( int stateArrayPosition = 0; stateArrayPosition < numberOfFetchables; stateArrayPosition++ ) {
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final Fetchable stateArrayContributor = embeddableMappingType.getFetchable( stateArrayPosition );
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final Fetch fetch = resultDescriptor.findFetch( stateArrayContributor );
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final DomainResultAssembler<?> stateAssembler = fetch == null
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? new NullValueAssembler<>( stateArrayContributor.getJavaType() )
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: fetch.createAssembler( this, creationState );
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if ( concreteEmbeddableTypes.isEmpty() ) {
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assemblers[0][stateArrayPosition] = stateAssembler;
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}
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else {
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for ( EmbeddableMappingType.ConcreteEmbeddableType concreteEmbeddableType : concreteEmbeddableTypes ) {
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if ( concreteEmbeddableType.declaresAttribute( stateArrayPosition ) ) {
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assemblers[concreteEmbeddableType.getSubclassId()][stateArrayPosition] = stateAssembler;
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}
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}
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}
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//noinspection unchecked
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final Initializer<InitializerData> subInitializer = (Initializer<InitializerData>) stateAssembler.getInitializer();
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if ( subInitializer != null ) {
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for (int subclassId = 0; subclassId < assemblers.length; subclassId++ ) {
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if ( subInitializers[subclassId] == Initializer.EMPTY_ARRAY ) {
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subInitializers[subclassId] = new Initializer[numberOfFetchables];
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}
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subInitializers[subclassId][stateArrayPosition] = subInitializer;
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if ( subInitializer.isEager() ) {
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if ( eagerSubInitializers[subclassId] == Initializer.EMPTY_ARRAY ) {
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eagerSubInitializers[subclassId] = new Initializer[subInitializer.length];
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eagerSubInitializers[subclassId] = new Initializer[numberOfFetchables];
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}
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eagerSubInitializers[subclassId][stateArrayPosition] = subInitializer;
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hasLazySubInitializers = hasLazySubInitializers || subInitializer.hasLazySubInitializers();
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assert fetch != null;
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final FetchParent fetchParent;
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if ( ( fetchParent = fetch.asFetchParent() ) != null && fetchParent.containsCollectionFetches()
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|| subInitializer.isCollectionInitializer() ) {
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if ( collectionContainingSubInitializers[subclassId] == Initializer.EMPTY_ARRAY ) {
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collectionContainingSubInitializers[subclassId] = new Initializer[numberOfFetchables];
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}
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collectionContainingSubInitializers[subclassId][stateArrayPosition] = subInitializer;
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}
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eagerSubInitializers[subclassId][i] = initializer;
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hasLazySubInitializers = hasLazySubInitializers || initializer.hasLazySubInitializers();
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}
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else {
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hasLazySubInitializers = true;
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}
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lazyCapable = lazyCapable || initializer.isLazyCapable();
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lazyCapable = lazyCapable || subInitializer.isLazyCapable();
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}
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}
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}
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this.assemblers = assemblers;
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this.discriminatorAssembler = discriminatorFetch != null
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? (BasicResultAssembler<?>) discriminatorFetch.createAssembler( this, creationState )
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: null;
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this.subInitializers = subInitializers;
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this.subInitializersForResolveFromInitialized = isEnhancedForLazyLoading( embeddableMappingType )
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? subInitializers
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: eagerSubInitializers;
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this.collectionContainingSubInitializers = collectionContainingSubInitializers;
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this.lazyCapable = lazyCapable;
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this.hasLazySubInitializer = hasLazySubInitializers;
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}
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@ -165,61 +206,6 @@ public class EmbeddableInitializerImpl extends AbstractInitializer<EmbeddableIni
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);
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}
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protected DomainResultAssembler<?>[][] createAssemblers(
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EmbeddableResultGraphNode resultDescriptor,
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AssemblerCreationState creationState,
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EmbeddableMappingType embeddableTypeDescriptor) {
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final int size = embeddableTypeDescriptor.getNumberOfFetchables();
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final DomainResultAssembler<?>[] overallAssemblers = new DomainResultAssembler[size];
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for ( int i = 0; i < size; i++ ) {
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final Fetchable stateArrayContributor = embeddableTypeDescriptor.getFetchable( i );
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final Fetch fetch = resultDescriptor.findFetch( stateArrayContributor );
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final DomainResultAssembler<?> stateAssembler = fetch == null
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? new NullValueAssembler<>( stateArrayContributor.getJavaType() )
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: fetch.createAssembler( this, creationState );
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overallAssemblers[i] = stateAssembler;
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}
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if ( embeddableTypeDescriptor.isPolymorphic() ) {
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final Collection<EmbeddableMappingType.ConcreteEmbeddableType> concreteEmbeddableTypes = embeddableTypeDescriptor.getConcreteEmbeddableTypes();
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final DomainResultAssembler<?>[][] assemblers = new DomainResultAssembler[concreteEmbeddableTypes.size()][];
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for ( EmbeddableMappingType.ConcreteEmbeddableType concreteEmbeddableType : concreteEmbeddableTypes ) {
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final DomainResultAssembler<?>[] subAssemblers = new DomainResultAssembler[overallAssemblers.length];
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for ( int i = 0; i < overallAssemblers.length; i++ ) {
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if ( concreteEmbeddableType.declaresAttribute( i ) ) {
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subAssemblers[i] = overallAssemblers[i];
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}
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}
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assemblers[concreteEmbeddableType.getSubclassId()] = subAssemblers;
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}
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return assemblers;
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}
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return new DomainResultAssembler[][] { overallAssemblers };
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}
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protected static @Nullable Initializer<InitializerData>[][] createInitializers(DomainResultAssembler<?>[][] assemblers) {
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@Nullable Initializer<?>[][] subInitializers = new Initializer<?>[assemblers.length][];
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for ( int i = 0; i < assemblers.length; i++ ) {
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final DomainResultAssembler<?>[] subAssemblers = assemblers[i];
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final @Nullable Initializer<?>[] initializers = new Initializer[subAssemblers.length];
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boolean empty = true;
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for ( int j = 0; j < subAssemblers.length; j++ ) {
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final DomainResultAssembler<?> assembler = subAssemblers[j];
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if ( assembler != null ) {
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final Initializer<?> initializer = assembler.getInitializer();
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if ( initializer != null ) {
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initializers[j] = initializer;
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empty = false;
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}
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}
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}
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subInitializers[i] = empty ? Initializer.EMPTY_ARRAY : initializers;
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}
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//noinspection unchecked
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return (Initializer<InitializerData>[][]) subInitializers;
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}
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@Override
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public EmbeddableValuedModelPart getInitializedPart() {
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return embedded;
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@ -271,7 +257,6 @@ public class EmbeddableInitializerImpl extends AbstractInitializer<EmbeddableIni
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if ( data.getState() != State.UNINITIALIZED ) {
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return;
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}
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// We need to possibly wrap the processing state if the embeddable is within an aggregate
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data.setInstance( null );
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if ( discriminatorAssembler != null ) {
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assert embeddableMappingType.getDiscriminatorMapping() != null;
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@ -296,6 +281,23 @@ public class EmbeddableInitializerImpl extends AbstractInitializer<EmbeddableIni
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}
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}
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@Override
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public void resetResolvedEntityRegistrations(RowProcessingState rowProcessingState) {
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final EmbeddableInitializerData data = getData( rowProcessingState );
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for ( Initializer<InitializerData> initializer : subInitializers[data.getSubclassId()] ) {
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if ( initializer != null ) {
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final EntityInitializer<?> entityInitializer = initializer.asEntityInitializer();
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final EmbeddableInitializer<?> embeddableInitializer;
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if ( entityInitializer != null ) {
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entityInitializer.resetResolvedEntityRegistrations( rowProcessingState );
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}
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else if ( ( embeddableInitializer = initializer.asEmbeddableInitializer() ) != null ) {
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embeddableInitializer.resetResolvedEntityRegistrations( rowProcessingState );
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}
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}
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}
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}
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private void resolveKeySubInitializers(EmbeddableInitializerData data) {
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final RowProcessingState rowProcessingState = data.getRowProcessingState();
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for ( Initializer<InitializerData> initializer : subInitializers[data.getSubclassId()] ) {
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@ -318,7 +320,8 @@ public class EmbeddableInitializerImpl extends AbstractInitializer<EmbeddableIni
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}
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else {
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final RowProcessingState rowProcessingState = data.getRowProcessingState();
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for ( Initializer<InitializerData> initializer : subInitializers[data.getSubclassId()] ) {
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// When a previous row initialized this entity already, we only need to process collections
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for ( Initializer<InitializerData> initializer : collectionContainingSubInitializers[data.getSubclassId()] ) {
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if ( initializer != null ) {
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initializer.resolveFromPreviousRow( rowProcessingState );
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}
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@ -26,12 +26,14 @@ import org.hibernate.spi.NavigablePath;
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import org.hibernate.sql.results.graph.AssemblerCreationState;
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import org.hibernate.sql.results.graph.DomainResultAssembler;
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import org.hibernate.sql.results.graph.Fetch;
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import org.hibernate.sql.results.graph.FetchParent;
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import org.hibernate.sql.results.graph.Fetchable;
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import org.hibernate.sql.results.graph.Initializer;
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import org.hibernate.sql.results.graph.InitializerData;
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import org.hibernate.sql.results.graph.InitializerParent;
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import org.hibernate.sql.results.graph.embeddable.EmbeddableInitializer;
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import org.hibernate.sql.results.graph.embeddable.EmbeddableResultGraphNode;
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import org.hibernate.sql.results.graph.entity.EntityInitializer;
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import org.hibernate.sql.results.graph.internal.AbstractInitializer;
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import org.hibernate.sql.results.internal.NullValueAssembler;
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import org.hibernate.sql.results.jdbc.spi.RowProcessingState;
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@ -58,6 +60,7 @@ public class NonAggregatedIdentifierMappingInitializer extends AbstractInitializ
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private final DomainResultAssembler<?>[] assemblers;
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private final @Nullable Initializer<InitializerData>[] initializers;
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private final @Nullable Initializer<InitializerData>[] subInitializersForResolveFromInitialized;
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private final @Nullable Initializer<InitializerData>[] collectionContainingSubInitializers;
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private final boolean lazyCapable;
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private final boolean hasLazySubInitializer;
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private final boolean hasIdClass;
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@ -124,20 +127,41 @@ public class NonAggregatedIdentifierMappingInitializer extends AbstractInitializ
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this.hasIdClass = embedded.hasContainingClass() && virtualIdEmbeddable != representationEmbeddable;
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this.sessionFactory = creationState.getSqlAstCreationContext().getSessionFactory();
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this.assemblers = createAssemblers( this, resultDescriptor, creationState, virtualIdEmbeddable, fetchConverter );
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final int size = virtualIdEmbeddable.getNumberOfFetchables();
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final DomainResultAssembler<?>[] assemblers = new DomainResultAssembler[size];
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this.assemblers = assemblers;
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final Initializer<?>[] initializers = new Initializer[assemblers.length];
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final Initializer<?>[] eagerSubInitializers = new Initializer[assemblers.length];
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final Initializer<?>[] collectionContainingSubInitializers = new Initializer[assemblers.length];
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boolean empty = true;
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boolean emptyEager = true;
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boolean emptyCollectionInitializers = true;
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boolean lazyCapable = false;
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boolean hasLazySubInitializers = false;
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for ( int i = 0; i < assemblers.length; i++ ) {
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final Initializer<?> initializer = assemblers[i].getInitializer();
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for ( int i = 0; i < size; i++ ) {
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final Fetchable stateArrayContributor = virtualIdEmbeddable.getFetchable( i );
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final Fetch fetch = fetchConverter.apply( resultDescriptor.findFetch( stateArrayContributor ) );
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final DomainResultAssembler<?> stateAssembler = fetch == null
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? new NullValueAssembler<>( stateArrayContributor.getJavaType() )
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: fetch.createAssembler( this, creationState );
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assemblers[i] = stateAssembler;
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final Initializer<?> initializer = stateAssembler.getInitializer();
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if ( initializer != null ) {
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if ( initializer.isEager() ) {
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eagerSubInitializers[i] = initializer;
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hasLazySubInitializers = hasLazySubInitializers || initializer.hasLazySubInitializers();
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emptyEager = false;
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assert fetch != null;
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final FetchParent fetchParent;
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if ( ( fetchParent = fetch.asFetchParent() ) != null && fetchParent.containsCollectionFetches()
|
||||
|| initializer.isCollectionInitializer() ) {
|
||||
collectionContainingSubInitializers[i] = initializer;
|
||||
emptyCollectionInitializers = false;
|
||||
}
|
||||
}
|
||||
else {
|
||||
hasLazySubInitializers = true;
|
||||
|
|
@ -152,34 +176,18 @@ public class NonAggregatedIdentifierMappingInitializer extends AbstractInitializ
|
|||
empty ? Initializer.EMPTY_ARRAY : initializers
|
||||
);
|
||||
// No need to think about bytecode enhancement here, since ids can't contain lazy basic attributes
|
||||
//noinspection unchecked
|
||||
this.subInitializersForResolveFromInitialized = (Initializer<InitializerData>[]) (
|
||||
emptyEager ? Initializer.EMPTY_ARRAY : initializers
|
||||
);
|
||||
//noinspection unchecked
|
||||
this.collectionContainingSubInitializers = (Initializer<InitializerData>[]) (
|
||||
emptyCollectionInitializers ? Initializer.EMPTY_ARRAY : collectionContainingSubInitializers
|
||||
);
|
||||
this.lazyCapable = lazyCapable;
|
||||
this.hasLazySubInitializer = hasLazySubInitializers;
|
||||
}
|
||||
|
||||
protected static DomainResultAssembler<?>[] createAssemblers(
|
||||
InitializerParent<?> parent,
|
||||
EmbeddableResultGraphNode resultDescriptor,
|
||||
AssemblerCreationState creationState,
|
||||
EmbeddableMappingType embeddableTypeDescriptor,
|
||||
Function<Fetch, Fetch> fetchConverter) {
|
||||
final int size = embeddableTypeDescriptor.getNumberOfFetchables();
|
||||
final DomainResultAssembler<?>[] assemblers = new DomainResultAssembler[size];
|
||||
for ( int i = 0; i < size; i++ ) {
|
||||
final Fetchable stateArrayContributor = embeddableTypeDescriptor.getFetchable( i );
|
||||
final Fetch fetch = fetchConverter.apply( resultDescriptor.findFetch( stateArrayContributor ) );
|
||||
|
||||
final DomainResultAssembler<?> stateAssembler = fetch == null
|
||||
? new NullValueAssembler<>( stateArrayContributor.getJavaType() )
|
||||
: fetch.createAssembler( parent, creationState );
|
||||
|
||||
assemblers[i] = stateAssembler;
|
||||
}
|
||||
return assemblers;
|
||||
}
|
||||
|
||||
@Override
|
||||
public EmbeddableValuedModelPart getInitializedPart() {
|
||||
return embedded;
|
||||
|
|
@ -210,7 +218,6 @@ public class NonAggregatedIdentifierMappingInitializer extends AbstractInitializ
|
|||
if ( data.getState() != State.UNINITIALIZED ) {
|
||||
return;
|
||||
}
|
||||
// We need to possibly wrap the processing state if the embeddable is within an aggregate
|
||||
data.setInstance( null );
|
||||
data.setState( State.KEY_RESOLVED );
|
||||
if ( initializers.length == 0 ) {
|
||||
|
|
@ -232,6 +239,42 @@ public class NonAggregatedIdentifierMappingInitializer extends AbstractInitializ
|
|||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void resetResolvedEntityRegistrations(RowProcessingState rowProcessingState) {
|
||||
final NonAggregatedIdentifierMappingInitializerData data = getData( rowProcessingState );
|
||||
for ( Initializer<InitializerData> initializer : initializers ) {
|
||||
if ( initializer != null ) {
|
||||
final EntityInitializer<?> entityInitializer = initializer.asEntityInitializer();
|
||||
final EmbeddableInitializer<?> embeddableInitializer;
|
||||
if ( entityInitializer != null ) {
|
||||
entityInitializer.resetResolvedEntityRegistrations( rowProcessingState );
|
||||
}
|
||||
else if ( ( embeddableInitializer = initializer.asEmbeddableInitializer() ) != null ) {
|
||||
embeddableInitializer.resetResolvedEntityRegistrations( rowProcessingState );
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void resolveFromPreviousRow(NonAggregatedIdentifierMappingInitializerData data) {
|
||||
if ( data.getState() == State.UNINITIALIZED ) {
|
||||
if ( data.getInstance() == null ) {
|
||||
data.setState( State.MISSING );
|
||||
}
|
||||
else {
|
||||
final RowProcessingState rowProcessingState = data.getRowProcessingState();
|
||||
// When a previous row initialized this entity already, we only need to process collections
|
||||
for ( Initializer<InitializerData> initializer : collectionContainingSubInitializers ) {
|
||||
if ( initializer != null ) {
|
||||
initializer.resolveFromPreviousRow( rowProcessingState );
|
||||
}
|
||||
}
|
||||
data.setState( State.INITIALIZED );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void resolveInstance(NonAggregatedIdentifierMappingInitializerData data) {
|
||||
if ( data.getState() != State.KEY_RESOLVED ) {
|
||||
|
|
@ -253,6 +296,9 @@ public class NonAggregatedIdentifierMappingInitializer extends AbstractInitializ
|
|||
else {
|
||||
data.setInstance( embeddableInstantiator.instantiate( data, sessionFactory ) );
|
||||
}
|
||||
if ( parent == null ) {
|
||||
data.setState( State.INITIALIZED );
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
|
|||
|
|
@ -62,6 +62,14 @@ public interface EntityInitializer<Data extends InitializerData> extends Initial
|
|||
return getEntityIdentifier( getData( rowProcessingState ) );
|
||||
}
|
||||
|
||||
/**
|
||||
* Resets the resolved entity registrations by i.e. removing {@link org.hibernate.engine.spi.EntityHolder}.
|
||||
*
|
||||
* @see org.hibernate.sql.results.graph.embeddable.EmbeddableInitializer#resetResolvedEntityRegistrations(RowProcessingState)
|
||||
*/
|
||||
default void resetResolvedEntityRegistrations(RowProcessingState rowProcessingState) {
|
||||
}
|
||||
|
||||
@Override
|
||||
default boolean isEntityInitializer() {
|
||||
return true;
|
||||
|
|
|
|||
|
|
@ -63,11 +63,13 @@ import org.hibernate.sql.results.graph.AssemblerCreationState;
|
|||
import org.hibernate.sql.results.graph.DomainResult;
|
||||
import org.hibernate.sql.results.graph.DomainResultAssembler;
|
||||
import org.hibernate.sql.results.graph.Fetch;
|
||||
import org.hibernate.sql.results.graph.FetchParent;
|
||||
import org.hibernate.sql.results.graph.Initializer;
|
||||
import org.hibernate.sql.results.graph.InitializerData;
|
||||
import org.hibernate.sql.results.graph.InitializerParent;
|
||||
import org.hibernate.sql.results.graph.basic.BasicResultAssembler;
|
||||
import org.hibernate.sql.results.graph.collection.internal.AbstractImmediateCollectionInitializer;
|
||||
import org.hibernate.sql.results.graph.embeddable.EmbeddableInitializer;
|
||||
import org.hibernate.sql.results.graph.entity.EntityInitializer;
|
||||
import org.hibernate.sql.results.graph.entity.EntityResultGraphNode;
|
||||
import org.hibernate.sql.results.graph.internal.AbstractInitializer;
|
||||
|
|
@ -130,8 +132,9 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
private final @Nullable DomainResultAssembler<Object> rowIdAssembler;
|
||||
|
||||
private final DomainResultAssembler<?>[][] assemblers;
|
||||
private final Initializer<?>[][] subInitializers;
|
||||
private final Initializer<?>[][] subInitializersForResolveFromInitialized;
|
||||
private final @Nullable Initializer<?>[][] subInitializers;
|
||||
private final @Nullable Initializer<?>[][] subInitializersForResolveFromInitialized;
|
||||
private final @Nullable Initializer<?>[][] collectionContainingSubInitializers;
|
||||
private final MutabilityPlan<Object>[][] updatableAttributeMutabilityPlans;
|
||||
private final ImmutableBitSet[] lazySets;
|
||||
private final ImmutableBitSet[] maybeLazySets;
|
||||
|
|
@ -252,9 +255,7 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
else {
|
||||
identifierAssembler = identifierFetch.createAssembler( this, creationState );
|
||||
final Initializer<?> initializer = identifierAssembler.getInitializer();
|
||||
// For now, assume key many to ones if the identifier has an initializer
|
||||
// todo: improve this
|
||||
hasKeyManyToOne = initializer != null;
|
||||
hasKeyManyToOne = initializer != null && initializer.isLazyCapable();
|
||||
}
|
||||
|
||||
assert entityDescriptor.hasSubclasses() == (discriminatorFetch != null) : "Discriminator should only be fetched if the entity has subclasses";
|
||||
|
|
@ -281,6 +282,7 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
final DomainResultAssembler<?>[][] assemblers = new DomainResultAssembler[subMappingTypes.size() + 1][];
|
||||
final Initializer<?>[][] subInitializers = new Initializer<?>[subMappingTypes.size() + 1][];
|
||||
final Initializer<?>[][] eagerSubInitializers = new Initializer<?>[subMappingTypes.size() + 1][];
|
||||
final Initializer<?>[][] collectionContainingSubInitializers = new Initializer<?>[subMappingTypes.size() + 1][];
|
||||
final BitSet[] lazySets = new BitSet[subMappingTypes.size() + 1];
|
||||
final BitSet[] maybeLazySets = new BitSet[subMappingTypes.size() + 1];
|
||||
final MutabilityPlan[][] updatableAttributeMutabilityPlans = new MutabilityPlan[subMappingTypes.size() + 1][];
|
||||
|
|
@ -310,6 +312,7 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
if ( subInitializers[subclassId] == null ) {
|
||||
subInitializers[subclassId] = new Initializer<?>[size];
|
||||
eagerSubInitializers[subclassId] = new Initializer<?>[size];
|
||||
collectionContainingSubInitializers[subclassId] = new Initializer<?>[size];
|
||||
lazySets[subclassId] = new BitSet( size );
|
||||
maybeLazySets[subclassId] = new BitSet( size );
|
||||
}
|
||||
|
|
@ -320,6 +323,12 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
maybeLazySets[subclassId].set( stateArrayPosition );
|
||||
hasLazySubInitializers = true;
|
||||
}
|
||||
assert fetch != null;
|
||||
final FetchParent fetchParent;
|
||||
if ( ( fetchParent = fetch.asFetchParent() ) != null && fetchParent.containsCollectionFetches()
|
||||
|| subInitializer.isCollectionInitializer() ) {
|
||||
collectionContainingSubInitializers[subclassId][stateArrayPosition] = subInitializer;
|
||||
}
|
||||
}
|
||||
else {
|
||||
// Lazy initializer
|
||||
|
|
@ -341,45 +350,63 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
if ( subInitializers[subMappingType.getSubclassId()] == null ) {
|
||||
subInitializers[subMappingType.getSubclassId()] = new Initializer<?>[size];
|
||||
eagerSubInitializers[subMappingType.getSubclassId()] = new Initializer<?>[size];
|
||||
collectionContainingSubInitializers[subMappingType.getSubclassId()] = new Initializer<?>[size];
|
||||
lazySets[subMappingType.getSubclassId()] = new BitSet(size);
|
||||
maybeLazySets[subMappingType.getSubclassId()] = new BitSet(size);
|
||||
}
|
||||
subInitializers[subMappingType.getSubclassId()][stateArrayPosition] = subInitializer;
|
||||
if ( subInitializer.isEager() ) {
|
||||
eagerSubInitializers[subMappingType.getSubclassId()][stateArrayPosition] = subInitializer;
|
||||
if ( subInitializer.hasLazySubInitializers() ) {
|
||||
maybeLazySets[subMappingType.getSubclassId()].set( stateArrayPosition );
|
||||
}
|
||||
}
|
||||
else {
|
||||
eagerSubInitializers[subMappingType.getSubclassId()][stateArrayPosition] = eagerSubInitializers[subclassId][stateArrayPosition];
|
||||
collectionContainingSubInitializers[subMappingType.getSubclassId()][stateArrayPosition] = collectionContainingSubInitializers[subclassId][stateArrayPosition];
|
||||
if (lazySets[subclassId].get( stateArrayPosition ) ) {
|
||||
lazySets[subMappingType.getSubclassId()].set( stateArrayPosition );
|
||||
}
|
||||
if (maybeLazySets[subclassId].get( stateArrayPosition ) ) {
|
||||
maybeLazySets[subMappingType.getSubclassId()].set( stateArrayPosition );
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
final BitSet emptyBitSet = new BitSet();
|
||||
OUTER: for ( int i = 0; i < subInitializers.length; i++ ) {
|
||||
for ( int i = 0; i < subInitializers.length; i++ ) {
|
||||
boolean emptySubInitializers = true;
|
||||
if ( subInitializers[i] != null ) {
|
||||
for ( Initializer<?> initializer : subInitializers[i] ) {
|
||||
if ( initializer != null ) {
|
||||
continue OUTER;
|
||||
emptySubInitializers = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
subInitializers[i] = Initializer.EMPTY_ARRAY;
|
||||
lazySets[i] = emptyBitSet;
|
||||
maybeLazySets[i] = emptyBitSet;
|
||||
}
|
||||
OUTER: for ( int i = 0; i < eagerSubInitializers.length; i++ ) {
|
||||
if ( emptySubInitializers ) {
|
||||
subInitializers[i] = Initializer.EMPTY_ARRAY;
|
||||
lazySets[i] = emptyBitSet;
|
||||
maybeLazySets[i] = emptyBitSet;
|
||||
}
|
||||
|
||||
boolean emptyContainingSubInitializers = true;
|
||||
if ( collectionContainingSubInitializers[i] != null ) {
|
||||
for ( Initializer<?> initializer : collectionContainingSubInitializers[i] ) {
|
||||
if ( initializer != null ) {
|
||||
emptyContainingSubInitializers = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if ( emptyContainingSubInitializers ) {
|
||||
collectionContainingSubInitializers[i] = Initializer.EMPTY_ARRAY;
|
||||
}
|
||||
boolean emptyEagerSubInitializers = true;
|
||||
if ( eagerSubInitializers[i] != null ) {
|
||||
for ( Initializer<?> initializer : eagerSubInitializers[i] ) {
|
||||
if ( initializer != null ) {
|
||||
continue OUTER;
|
||||
emptyEagerSubInitializers = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
eagerSubInitializers[i] = Initializer.EMPTY_ARRAY;
|
||||
if ( emptyEagerSubInitializers ) {
|
||||
eagerSubInitializers[i] = Initializer.EMPTY_ARRAY;
|
||||
}
|
||||
}
|
||||
|
||||
this.assemblers = assemblers;
|
||||
|
|
@ -387,6 +414,7 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
this.subInitializersForResolveFromInitialized = rootEntityDescriptor.getBytecodeEnhancementMetadata().isEnhancedForLazyLoading()
|
||||
? subInitializers
|
||||
: eagerSubInitializers;
|
||||
this.collectionContainingSubInitializers = collectionContainingSubInitializers;
|
||||
this.lazySets = Arrays.stream( lazySets ).map( ImmutableBitSet::valueOf ).toArray( ImmutableBitSet[]::new );
|
||||
this.maybeLazySets = Arrays.stream( maybeLazySets )
|
||||
.map( ImmutableBitSet::valueOf )
|
||||
|
|
@ -431,21 +459,48 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
|
||||
@Override
|
||||
public @Nullable EntityKey resolveEntityKeyOnly(RowProcessingState rowProcessingState) {
|
||||
assert identifierAssembler != null;
|
||||
final EntityInitializerData data = getData( rowProcessingState );
|
||||
resolveKey( data, true );
|
||||
if ( data.getState() == State.MISSING ) {
|
||||
return null;
|
||||
}
|
||||
if ( data.entityKey == null ) {
|
||||
assert identifierAssembler != null;
|
||||
final Object id = identifierAssembler.assemble( rowProcessingState );
|
||||
if ( id == null ) {
|
||||
setMissing( data );
|
||||
try {
|
||||
if ( data.getState() == State.MISSING ) {
|
||||
return null;
|
||||
}
|
||||
resolveEntityKey( data, id );
|
||||
if ( data.entityKey == null ) {
|
||||
final Object id = identifierAssembler.assemble( rowProcessingState );
|
||||
if ( id == null ) {
|
||||
setMissing( data );
|
||||
return null;
|
||||
}
|
||||
resolveEntityKey( data, id );
|
||||
}
|
||||
return data.entityKey;
|
||||
}
|
||||
finally {
|
||||
final Initializer<?> initializer = identifierAssembler.getInitializer();
|
||||
if ( hasKeyManyToOne && initializer != null ) {
|
||||
final EmbeddableInitializer<?> embeddableInitializer = initializer.asEmbeddableInitializer();
|
||||
assert embeddableInitializer != null;
|
||||
embeddableInitializer.resetResolvedEntityRegistrations( rowProcessingState );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void resetResolvedEntityRegistrations(RowProcessingState rowProcessingState) {
|
||||
final EntityInitializerData data = getData( rowProcessingState );
|
||||
if ( data.getState() == State.RESOLVED ) {
|
||||
rowProcessingState.getSession()
|
||||
.getPersistenceContextInternal()
|
||||
.removeEntityHolder( data.entityKey );
|
||||
rowProcessingState.getJdbcValuesSourceProcessingState()
|
||||
.getLoadingEntityHolders()
|
||||
.remove( data.entityHolder );
|
||||
data.entityKey = null;
|
||||
data.entityHolder = null;
|
||||
data.entityInstanceForNotify = null;
|
||||
data.setInstance( null );
|
||||
}
|
||||
return data.entityKey;
|
||||
}
|
||||
|
||||
protected void resolveKey(EntityInitializerData data, boolean entityKeyOnly) {
|
||||
|
|
@ -510,16 +565,15 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
|
||||
if ( oldEntityKey != null && previousRowReuse && oldEntityInstance != null
|
||||
&& areKeysEqual( oldEntityKey.getIdentifier(), id ) ) {
|
||||
// The row we read previously referred to this entity already, so we can safely assume it's initialized.
|
||||
// Unfortunately we can't set the state to INITIALIZED though, as that has other implications,
|
||||
// but RESOLVED is fine, since the EntityEntry is marked as initialized which skips instance initialization
|
||||
data.setState( State.RESOLVED );
|
||||
data.setState( State.INITIALIZED );
|
||||
data.entityKey = oldEntityKey;
|
||||
data.setInstance( oldEntityInstance );
|
||||
data.entityInstanceForNotify = oldEntityInstanceForNotify;
|
||||
data.concreteDescriptor = oldEntityKey.getPersister();
|
||||
data.entityHolder = oldEntityHolder;
|
||||
notifySubInitializersToReusePreviousRowInstance( data );
|
||||
if ( !entityKeyOnly ) {
|
||||
notifySubInitializersToReusePreviousRowInstance( data );
|
||||
}
|
||||
return;
|
||||
}
|
||||
resolveEntityKey( data, id );
|
||||
|
|
@ -555,16 +609,22 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
|
||||
protected void resolveInstanceSubInitializers(EntityInitializerData data) {
|
||||
final int subclassId = data.concreteDescriptor.getSubclassId();
|
||||
final Initializer<?>[] initializers = subInitializersForResolveFromInitialized[subclassId];
|
||||
final EntityEntry entityEntry;
|
||||
final EntityEntry entityEntry = data.entityHolder.getEntityEntry();
|
||||
final Initializer<?>[] initializers;
|
||||
final ImmutableBitSet maybeLazySet;
|
||||
// Skip resolving if this initializer has no sub-initializers
|
||||
if ( initializers.length == 0
|
||||
// or the entity entry has a lazy set available
|
||||
|| ( maybeLazySet = ( entityEntry = data.entityHolder.getEntityEntry() ).getMaybeLazySet() ) != null
|
||||
// which is contained in the lazy sub-initializers
|
||||
&& lazySets[subclassId].contains( maybeLazySet ) ) {
|
||||
return;
|
||||
if ( data.entityHolder.getEntityInitializer() == this ) {
|
||||
// When a previous row initialized this entity already, we only need to process collections
|
||||
initializers = collectionContainingSubInitializers[subclassId];
|
||||
maybeLazySet = null;
|
||||
}
|
||||
else {
|
||||
initializers = subInitializersForResolveFromInitialized[subclassId];
|
||||
maybeLazySet = entityEntry.getMaybeLazySet();
|
||||
// Skip resolving if this initializer has no sub-initializers
|
||||
// or the lazy set of this initializer is a superset/contains the entity entry maybeLazySet
|
||||
if ( initializers.length == 0 || maybeLazySet != null && lazySets[subclassId].contains( maybeLazySet ) ) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
final RowProcessingState rowProcessingState = data.getRowProcessingState();
|
||||
assert entityEntry == rowProcessingState.getSession()
|
||||
|
|
@ -603,9 +663,24 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
}
|
||||
|
||||
private void notifySubInitializersToReusePreviousRowInstance(EntityInitializerData data) {
|
||||
final EntityEntry entityEntry = data.entityHolder.getEntityEntry();
|
||||
final Initializer<?>[] subInitializer;
|
||||
final ImmutableBitSet maybeLazySet;
|
||||
if ( data.entityHolder.getEntityInitializer() == this ) {
|
||||
// When a previous row initialized this entity already, we only need to process collections
|
||||
subInitializer = collectionContainingSubInitializers[data.concreteDescriptor.getSubclassId()];
|
||||
maybeLazySet = null;
|
||||
}
|
||||
else {
|
||||
subInitializer = subInitializersForResolveFromInitialized[data.concreteDescriptor.getSubclassId()];
|
||||
maybeLazySet = entityEntry == null ? null : entityEntry.getMaybeLazySet();
|
||||
}
|
||||
final RowProcessingState rowProcessingState = data.getRowProcessingState();
|
||||
for ( Initializer<?> initializer : subInitializers[data.concreteDescriptor.getSubclassId()] ) {
|
||||
if ( initializer != null ) {
|
||||
for ( int i = 0; i < subInitializer.length; i++ ) {
|
||||
final Initializer<?> initializer = subInitializer[i];
|
||||
// It is vital to only resolveFromPreviousRow only for the initializers where the state is maybe lazy,
|
||||
// as the initialization process for the previous row also only called those initializers
|
||||
if ( initializer != null && ( maybeLazySet == null || maybeLazySet.get( i ) ) ) {
|
||||
initializer.resolveFromPreviousRow( rowProcessingState );
|
||||
}
|
||||
}
|
||||
|
|
@ -674,7 +749,7 @@ public class EntityInitializerImpl extends AbstractInitializer<EntityInitializer
|
|||
setMissing( data );
|
||||
}
|
||||
else {
|
||||
data.setState( State.RESOLVED );
|
||||
data.setState( State.INITIALIZED );
|
||||
notifySubInitializersToReusePreviousRowInstance( data );
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,193 @@
|
|||
/*
|
||||
* 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.orm.test.query;
|
||||
|
||||
import java.util.HashSet;
|
||||
import java.util.Set;
|
||||
|
||||
import org.hibernate.testing.orm.junit.EntityManagerFactoryScope;
|
||||
import org.hibernate.testing.orm.junit.Jira;
|
||||
import org.hibernate.testing.orm.junit.Jpa;
|
||||
import org.junit.jupiter.api.AfterEach;
|
||||
import org.junit.jupiter.api.BeforeEach;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
import jakarta.persistence.Column;
|
||||
import jakarta.persistence.Entity;
|
||||
import jakarta.persistence.Id;
|
||||
import jakarta.persistence.JoinColumn;
|
||||
import jakarta.persistence.ManyToOne;
|
||||
import jakarta.persistence.OneToMany;
|
||||
|
||||
@Jpa(
|
||||
annotatedClasses = { ReloadWithPreviousRowEntityTest2.TeacherDetails.class, ReloadWithPreviousRowEntityTest2.Student.class, ReloadWithPreviousRowEntityTest2.Teacher.class }
|
||||
)
|
||||
@Jira("https://hibernate.atlassian.net/browse/HHH-18271")
|
||||
public class ReloadWithPreviousRowEntityTest2 {
|
||||
|
||||
@BeforeEach
|
||||
public void prepareTestData(EntityManagerFactoryScope scope) {
|
||||
scope.inTransaction(
|
||||
(session) -> {
|
||||
Student mathStudent = new Student(16);
|
||||
Student frenchStudent = new Student(17);
|
||||
Student scienceStudent = new Student(18);
|
||||
|
||||
Teacher teacherWithNoStudents = new Teacher(16);
|
||||
Teacher teacherWithOneStudent = new Teacher(17);
|
||||
Teacher teacherWithTwoStudents = new Teacher(18);
|
||||
|
||||
session.persist( teacherWithNoStudents );
|
||||
session.persist( teacherWithOneStudent );
|
||||
session.persist( teacherWithTwoStudents );
|
||||
|
||||
mathStudent.setTeacher( teacherWithOneStudent );
|
||||
teacherWithOneStudent.addStudent( mathStudent );
|
||||
|
||||
frenchStudent.setTeacher( teacherWithTwoStudents );
|
||||
teacherWithTwoStudents.addStudent( frenchStudent );
|
||||
|
||||
scienceStudent.setTeacher( teacherWithTwoStudents );
|
||||
teacherWithTwoStudents.addStudent( scienceStudent );
|
||||
|
||||
session.persist( mathStudent );
|
||||
session.persist( frenchStudent );
|
||||
session.persist( scienceStudent );
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
@AfterEach
|
||||
public void dropTestData(EntityManagerFactoryScope scope) {
|
||||
scope.inTransaction(
|
||||
(session) -> {
|
||||
session.createQuery( "delete from Student" ).executeUpdate();
|
||||
session.createQuery( "delete from Teacher" ).executeUpdate();
|
||||
session.createQuery( "delete from TeacherDetails" ).executeUpdate();
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testReloadWithPreviousRow(EntityManagerFactoryScope scope) {
|
||||
scope.inEntityManager( em -> {
|
||||
// First load a fully initialized graph i.e. maybeLazySet empty
|
||||
em.createQuery( "select s from Student s join fetch s.teacher t left join fetch t.students left join fetch t.details order by s.id desc", Student.class ).getResultList();
|
||||
// Then load a partially initialized graph and see if previous row optimization works properly
|
||||
em.createQuery( "select s from Student s join fetch s.teacher t left join fetch t.students order by s.id desc", Student.class ).getResultList();
|
||||
} );
|
||||
}
|
||||
|
||||
@Entity(name = "Student")
|
||||
public static class Student {
|
||||
private Integer id;
|
||||
|
||||
private Teacher teacher;
|
||||
|
||||
public Student() {
|
||||
}
|
||||
|
||||
public Student(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@Id
|
||||
@Column(name = "student_id")
|
||||
public Integer getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@ManyToOne(optional = false)
|
||||
@JoinColumn(name = "teacher_fk_id")
|
||||
public Teacher getTeacher() {
|
||||
return teacher;
|
||||
}
|
||||
|
||||
public void setTeacher(Teacher teacher) {
|
||||
this.teacher = teacher;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@Entity(name = "Teacher")
|
||||
public static class Teacher {
|
||||
|
||||
private Integer id;
|
||||
|
||||
private Set<Student> students = new HashSet<>();
|
||||
|
||||
private TeacherDetails details;
|
||||
|
||||
public Teacher() {
|
||||
}
|
||||
|
||||
public Teacher(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@Id
|
||||
@Column(name = "teacher_id")
|
||||
public Integer getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@OneToMany(mappedBy = "teacher")
|
||||
public Set<Student> getStudents() {
|
||||
return students;
|
||||
}
|
||||
|
||||
public void setStudents(Set<Student> students) {
|
||||
this.students = students;
|
||||
}
|
||||
|
||||
public void addStudent(Student student) {
|
||||
students.add( student );
|
||||
}
|
||||
|
||||
@ManyToOne
|
||||
public TeacherDetails getDetails() {
|
||||
return details;
|
||||
}
|
||||
|
||||
public void setDetails(TeacherDetails details) {
|
||||
this.details = details;
|
||||
}
|
||||
}
|
||||
|
||||
@Entity(name = "TeacherDetails")
|
||||
public static class TeacherDetails {
|
||||
|
||||
private Integer id;
|
||||
private String name;
|
||||
|
||||
@Id
|
||||
public Integer getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public void setName(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,198 @@
|
|||
/*
|
||||
* 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.orm.test.query;
|
||||
|
||||
import java.util.HashSet;
|
||||
import java.util.Set;
|
||||
|
||||
import org.hibernate.testing.orm.junit.EntityManagerFactoryScope;
|
||||
import org.hibernate.testing.orm.junit.Jira;
|
||||
import org.hibernate.testing.orm.junit.Jpa;
|
||||
import org.junit.jupiter.api.AfterEach;
|
||||
import org.junit.jupiter.api.BeforeEach;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
import jakarta.persistence.Column;
|
||||
import jakarta.persistence.Entity;
|
||||
import jakarta.persistence.Id;
|
||||
import jakarta.persistence.JoinColumn;
|
||||
import jakarta.persistence.ManyToMany;
|
||||
import jakarta.persistence.ManyToOne;
|
||||
import jakarta.persistence.OneToMany;
|
||||
|
||||
@Jpa(
|
||||
annotatedClasses = { ReloadWithPreviousRowEntityTest3.Skill.class, ReloadWithPreviousRowEntityTest3.Student.class, ReloadWithPreviousRowEntityTest3.Teacher.class }
|
||||
)
|
||||
@Jira("https://hibernate.atlassian.net/browse/HHH-18271")
|
||||
public class ReloadWithPreviousRowEntityTest3 {
|
||||
|
||||
@BeforeEach
|
||||
public void prepareTestData(EntityManagerFactoryScope scope) {
|
||||
scope.inTransaction(
|
||||
(session) -> {
|
||||
Student mathStudent = new Student(16);
|
||||
Student frenchStudent = new Student(17);
|
||||
Student scienceStudent = new Student(18);
|
||||
|
||||
Teacher teacherWithNoStudents = new Teacher(16);
|
||||
Teacher teacherWithOneStudent = new Teacher(17);
|
||||
Teacher teacherWithTwoStudents = new Teacher(18);
|
||||
|
||||
session.persist( teacherWithNoStudents );
|
||||
session.persist( teacherWithOneStudent );
|
||||
session.persist( teacherWithTwoStudents );
|
||||
|
||||
mathStudent.setTeacher( teacherWithOneStudent );
|
||||
teacherWithOneStudent.addStudent( mathStudent );
|
||||
|
||||
frenchStudent.setTeacher( teacherWithTwoStudents );
|
||||
teacherWithTwoStudents.addStudent( frenchStudent );
|
||||
|
||||
scienceStudent.setTeacher( teacherWithTwoStudents );
|
||||
teacherWithTwoStudents.addStudent( scienceStudent );
|
||||
|
||||
session.persist( mathStudent );
|
||||
session.persist( frenchStudent );
|
||||
session.persist( scienceStudent );
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
@AfterEach
|
||||
public void dropTestData(EntityManagerFactoryScope scope) {
|
||||
scope.inTransaction(
|
||||
(session) -> {
|
||||
session.createQuery( "delete from Student" ).executeUpdate();
|
||||
session.createQuery( "delete from Teacher" ).executeUpdate();
|
||||
session.createQuery( "delete from Skill" ).executeUpdate();
|
||||
}
|
||||
);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testReloadWithPreviousRow(EntityManagerFactoryScope scope) {
|
||||
scope.inEntityManager( em -> {
|
||||
// First load a fully initialized graph i.e. maybeLazySet empty
|
||||
em.createQuery( "select s from Student s join fetch s.teacher t left join fetch t.students left join fetch t.skills order by s.id desc", Student.class ).getResultList();
|
||||
// Then load a partially initialized graph and see if previous row optimization works properly
|
||||
em.createQuery( "select s from Student s join fetch s.teacher t left join fetch t.students order by s.id desc", Student.class ).getResultList();
|
||||
} );
|
||||
}
|
||||
|
||||
@Entity(name = "Student")
|
||||
public static class Student {
|
||||
private Integer id;
|
||||
|
||||
private Teacher teacher;
|
||||
|
||||
public Student() {
|
||||
}
|
||||
|
||||
public Student(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@Id
|
||||
@Column(name = "student_id")
|
||||
public Integer getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@ManyToOne(optional = false)
|
||||
@JoinColumn(name = "teacher_fk_id")
|
||||
public Teacher getTeacher() {
|
||||
return teacher;
|
||||
}
|
||||
|
||||
public void setTeacher(Teacher teacher) {
|
||||
this.teacher = teacher;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@Entity(name = "Teacher")
|
||||
public static class Teacher {
|
||||
|
||||
private Integer id;
|
||||
|
||||
private Set<Student> students = new HashSet<>();
|
||||
|
||||
private Set<Skill> skills = new HashSet<>();
|
||||
|
||||
public Teacher() {
|
||||
}
|
||||
|
||||
public Teacher(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@Id
|
||||
@Column(name = "teacher_id")
|
||||
public Integer getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
@OneToMany(mappedBy = "teacher")
|
||||
public Set<Student> getStudents() {
|
||||
return students;
|
||||
}
|
||||
|
||||
public void setStudents(Set<Student> students) {
|
||||
this.students = students;
|
||||
}
|
||||
|
||||
public void addStudent(Student student) {
|
||||
students.add( student );
|
||||
}
|
||||
|
||||
@ManyToMany
|
||||
public Set<Skill> getSkills() {
|
||||
return skills;
|
||||
}
|
||||
|
||||
public void addSkill(Skill skill) {
|
||||
skills.add( skill );
|
||||
}
|
||||
|
||||
public void setSkills(Set<Skill> skills) {
|
||||
this.skills = skills;
|
||||
}
|
||||
}
|
||||
|
||||
@Entity(name = "Skill")
|
||||
public static class Skill {
|
||||
|
||||
private Integer id;
|
||||
private String name;
|
||||
|
||||
@Id
|
||||
public Integer getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public void setId(Integer id) {
|
||||
this.id = id;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public void setName(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -0,0 +1,172 @@
|
|||
/*
|
||||
* 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.orm.test.stream;
|
||||
|
||||
import java.util.HashSet;
|
||||
import java.util.List;
|
||||
import java.util.Set;
|
||||
import java.util.stream.Collectors;
|
||||
import java.util.stream.Stream;
|
||||
|
||||
import org.hibernate.testing.orm.junit.DomainModel;
|
||||
import org.hibernate.testing.orm.junit.Jira;
|
||||
import org.hibernate.testing.orm.junit.SessionFactory;
|
||||
import org.hibernate.testing.orm.junit.SessionFactoryScope;
|
||||
import org.junit.jupiter.api.AfterAll;
|
||||
import org.junit.jupiter.api.BeforeAll;
|
||||
import org.junit.jupiter.api.Test;
|
||||
|
||||
import jakarta.persistence.CascadeType;
|
||||
import jakarta.persistence.Entity;
|
||||
import jakarta.persistence.GeneratedValue;
|
||||
import jakarta.persistence.Id;
|
||||
import jakarta.persistence.JoinColumn;
|
||||
import jakarta.persistence.ManyToOne;
|
||||
import jakarta.persistence.MappedSuperclass;
|
||||
import jakarta.persistence.OneToMany;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
@DomainModel( annotatedClasses = {
|
||||
KeyToOneCollectionFetchScrollTest.BasicEntity.class,
|
||||
KeyToOneCollectionFetchScrollTest.EntityA.class,
|
||||
KeyToOneCollectionFetchScrollTest.EntityB.class,
|
||||
KeyToOneCollectionFetchScrollTest.EntityC.class,
|
||||
} )
|
||||
@SessionFactory
|
||||
@Jira("https://hibernate.atlassian.net/browse/HHH-18476")
|
||||
public class KeyToOneCollectionFetchScrollTest {
|
||||
@BeforeAll
|
||||
public void setUp(SessionFactoryScope scope) {
|
||||
scope.inTransaction( session -> {
|
||||
final EntityA a1 = new EntityA("a1");
|
||||
final EntityA a2 = new EntityA("a2");
|
||||
final EntityB b1 = new EntityB("b1");
|
||||
b1.a1 = a1;
|
||||
b1.a2 = a2;
|
||||
session.persist( a1 );
|
||||
session.persist( a2 );
|
||||
session.persist( b1 );
|
||||
final EntityA a3 = new EntityA("a3");
|
||||
final EntityA a4 = new EntityA("a4");
|
||||
final EntityB b2 = new EntityB("b2");
|
||||
b2.a1 = a3;
|
||||
b2.a2 = a4;
|
||||
session.persist( a3 );
|
||||
session.persist( a4 );
|
||||
session.persist( b2 );
|
||||
} );
|
||||
}
|
||||
|
||||
@AfterAll
|
||||
public void tearDown(SessionFactoryScope scope) {
|
||||
scope.inTransaction( session -> {
|
||||
session.createMutationQuery( "delete from EntityC" ).executeUpdate();
|
||||
session.createMutationQuery( "delete from EntityB" ).executeUpdate();
|
||||
session.createMutationQuery( "delete from EntityA" ).executeUpdate();
|
||||
} );
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testScrollWithKeyToOne(SessionFactoryScope scope) {
|
||||
scope.inTransaction( session -> {
|
||||
try (final Stream<EntityB> stream = session.createQuery(
|
||||
"select b from EntityB b join fetch b.a1 join fetch b.a2 left join fetch b.c c order by b.name",
|
||||
EntityB.class
|
||||
).getResultStream()) {
|
||||
final List<EntityB> list = stream.collect( Collectors.toList() );
|
||||
assertThat( list ).hasSize( 2 );
|
||||
assertThat( list.get( 0 ).getA1() ).isNotNull();
|
||||
assertThat( list.get( 0 ).getC() ).hasSize( 0 );
|
||||
}
|
||||
} );
|
||||
}
|
||||
|
||||
@MappedSuperclass
|
||||
public static abstract class BasicEntity {
|
||||
@Id
|
||||
@GeneratedValue
|
||||
Long id;
|
||||
String name;
|
||||
|
||||
public BasicEntity() {
|
||||
}
|
||||
|
||||
public BasicEntity(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
public Long getId() {
|
||||
return id;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
}
|
||||
|
||||
@Entity( name = "EntityA" )
|
||||
public static class EntityA extends BasicEntity {
|
||||
|
||||
public EntityA() {
|
||||
}
|
||||
|
||||
public EntityA(String name) {
|
||||
super( name );
|
||||
}
|
||||
}
|
||||
|
||||
@Entity( name = "EntityB" )
|
||||
public static class EntityB {
|
||||
@Id
|
||||
@ManyToOne
|
||||
@JoinColumn( name = "a1_id")
|
||||
EntityA a1;
|
||||
@Id
|
||||
@ManyToOne
|
||||
@JoinColumn( name = "a2_id")
|
||||
EntityA a2;
|
||||
String name;
|
||||
@OneToMany( cascade = CascadeType.PERSIST )
|
||||
@JoinColumn( name = "entityb_a1_id", referencedColumnName = "a1_id")
|
||||
@JoinColumn( name = "entityb_a2_id", referencedColumnName = "a2_id")
|
||||
Set<EntityC> c = new HashSet<>();
|
||||
|
||||
public EntityB() {
|
||||
}
|
||||
|
||||
public EntityB(String name) {
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
public EntityA getA1() {
|
||||
return a1;
|
||||
}
|
||||
|
||||
public EntityA getA2() {
|
||||
return a2;
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public Set<EntityC> getC() {
|
||||
return c;
|
||||
}
|
||||
}
|
||||
|
||||
@Entity( name = "EntityC" )
|
||||
public static class EntityC extends BasicEntity {
|
||||
public EntityC() {
|
||||
}
|
||||
|
||||
public EntityC(String name) {
|
||||
super( name );
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue