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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2013, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.loader.plan.build.internal.returns;
import org.hibernate.loader.PropertyPath;
import org.hibernate.loader.plan.build.internal.spaces.CompositePropertyMapping;
import org.hibernate.loader.plan.build.internal.spaces.QuerySpaceHelper;
import org.hibernate.loader.plan.build.spi.ExpandingCollectionQuerySpace;
import org.hibernate.loader.plan.build.spi.ExpandingCompositeQuerySpace;
import org.hibernate.loader.plan.build.spi.ExpandingEntityQuerySpace;
import org.hibernate.loader.plan.spi.CollectionFetchableElement;
import org.hibernate.loader.plan.spi.CollectionFetchableIndex;
import org.hibernate.loader.plan.spi.CollectionReference;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.persister.collection.CollectionPropertyNames;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.persister.entity.PropertyMapping;
import org.hibernate.type.CompositeType;
import org.hibernate.type.EntityType;
import org.hibernate.type.Type;
/**
* @author Steve Ebersole
*/
public abstract class AbstractCollectionReference implements CollectionReference {
private final ExpandingCollectionQuerySpace collectionQuerySpace;
private final PropertyPath propertyPath;
private final CollectionFetchableIndex index;
private final CollectionFetchableElement element;
protected AbstractCollectionReference(
ExpandingCollectionQuerySpace collectionQuerySpace,
PropertyPath propertyPath,
boolean shouldIncludeJoins) {
this.collectionQuerySpace = collectionQuerySpace;
this.propertyPath = propertyPath;
this.index = buildIndexGraph( collectionQuerySpace, shouldIncludeJoins );
this.element = buildElementGraph( collectionQuerySpace, shouldIncludeJoins );
}
private CollectionFetchableIndex buildIndexGraph(
ExpandingCollectionQuerySpace collectionQuerySpace,
boolean shouldIncludeJoins) {
final CollectionPersister persister = collectionQuerySpace.getCollectionPersister();
if ( persister.hasIndex() ) {
final Type type = persister.getIndexType();
if ( type.isAssociationType() ) {
if ( type.isEntityType() ) {
final EntityPersister indexPersister = persister.getFactory().getEntityPersister(
( (EntityType) type ).getAssociatedEntityName()
);
final ExpandingEntityQuerySpace entityQuerySpace = QuerySpaceHelper.INSTANCE.makeEntityQuerySpace(
collectionQuerySpace,
indexPersister,
CollectionPropertyNames.COLLECTION_INDICES,
(EntityType) persister.getIndexType(),
collectionQuerySpace.getExpandingQuerySpaces().generateImplicitUid(),
collectionQuerySpace.canJoinsBeRequired(),
shouldIncludeJoins
);
return new CollectionFetchableIndexEntityGraph( this, entityQuerySpace );
}
else if ( type.isAnyType() ) {
return new CollectionFetchableIndexAnyGraph( this );
}
}
else if ( type.isComponentType() ) {
final ExpandingCompositeQuerySpace compositeQuerySpace = QuerySpaceHelper.INSTANCE.makeCompositeQuerySpace(
collectionQuerySpace,
new CompositePropertyMapping(
(CompositeType) persister.getIndexType(),
(PropertyMapping) persister,
""
),
CollectionPropertyNames.COLLECTION_INDICES,
(CompositeType) persister.getIndexType(),
collectionQuerySpace.getExpandingQuerySpaces().generateImplicitUid(),
collectionQuerySpace.canJoinsBeRequired(),
shouldIncludeJoins
);
return new CollectionFetchableIndexCompositeGraph( this, compositeQuerySpace );
}
}
return null;
}
private CollectionFetchableElement buildElementGraph(
ExpandingCollectionQuerySpace collectionQuerySpace,
boolean shouldIncludeJoins) {
final CollectionPersister persister = collectionQuerySpace.getCollectionPersister();
final Type type = persister.getElementType();
if ( type.isAssociationType() ) {
if ( type.isEntityType() ) {
final EntityPersister elementPersister = persister.getFactory().getEntityPersister(
( (EntityType) type ).getAssociatedEntityName()
);
final ExpandingEntityQuerySpace entityQuerySpace = QuerySpaceHelper.INSTANCE.makeEntityQuerySpace(
collectionQuerySpace,
elementPersister,
CollectionPropertyNames.COLLECTION_ELEMENTS,
(EntityType) persister.getElementType(),
collectionQuerySpace.getExpandingQuerySpaces().generateImplicitUid(),
collectionQuerySpace.canJoinsBeRequired(),
shouldIncludeJoins
);
return new CollectionFetchableElementEntityGraph( this, entityQuerySpace );
}
else if ( type.isAnyType() ) {
return new CollectionFetchableElementAnyGraph( this );
}
}
else if ( type.isComponentType() ) {
final ExpandingCompositeQuerySpace compositeQuerySpace = QuerySpaceHelper.INSTANCE.makeCompositeQuerySpace(
collectionQuerySpace,
new CompositePropertyMapping(
(CompositeType) persister.getElementType(),
(PropertyMapping) persister,
""
),
CollectionPropertyNames.COLLECTION_ELEMENTS,
(CompositeType) persister.getElementType(),
collectionQuerySpace.getExpandingQuerySpaces().generateImplicitUid(),
collectionQuerySpace.canJoinsBeRequired(),
shouldIncludeJoins
);
return new CollectionFetchableElementCompositeGraph( this, compositeQuerySpace );
}
return null;
}
@Override
public String getQuerySpaceUid() {
return collectionQuerySpace.getUid();
}
@Override
public CollectionPersister getCollectionPersister() {
return collectionQuerySpace.getCollectionPersister();
}
@Override
public CollectionFetchableIndex getIndexGraph() {
return index;
}
@Override
public CollectionFetchableElement getElementGraph() {
return element;
}
@Override
public PropertyPath getPropertyPath() {
return propertyPath;
}
}
