org.hibernate.metamodel.model.domain.internal.AbstractPluralAttribute Maven / Gradle / Ivy

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/*
 * 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.metamodel.model.domain.internal;

import java.io.Serializable;
import java.util.Collection;

import org.hibernate.metamodel.CollectionClassification;
import org.hibernate.metamodel.internal.MetadataContext;
import org.hibernate.metamodel.model.domain.PluralPersistentAttribute;
import org.hibernate.metamodel.model.domain.SimpleDomainType;
import org.hibernate.query.NavigablePath;
import org.hibernate.query.sqm.SqmPathSource;
import org.hibernate.query.hql.spi.SqmCreationState;
import org.hibernate.query.sqm.internal.SqmMappingModelHelper;
import org.hibernate.query.sqm.tree.domain.SqmPath;
import org.hibernate.query.sqm.tree.domain.SqmPluralValuedSimplePath;
import org.hibernate.type.descriptor.java.JavaTypeDescriptor;

/**
 * @param  The (D)eclaring type
 * @param  The {@link Collection} type
 * @param  The type of the Collection's elements
 *
 * @author Emmanuel Bernard
 * @author Steve Ebersole
 */
public abstract class AbstractPluralAttribute
		extends AbstractAttribute
		implements PluralPersistentAttribute, Serializable {

	private final CollectionClassification classification;
	private final SqmPathSource elementPathSource;

	@SuppressWarnings("WeakerAccess")
	protected AbstractPluralAttribute(
			PluralAttributeBuilder builder,
			MetadataContext metadataContext) {
		super(
				builder.getDeclaringType(),
				builder.getProperty().getName(),
				builder.getCollectionJavaTypeDescriptor(),
				builder.getAttributeClassification(),
				builder.getValueType(),
				builder.getMember(),
				metadataContext
		);

		this.classification = builder.getCollectionClassification();

		this.elementPathSource = SqmMappingModelHelper.resolveSqmPathSource(
				getName(),
				builder.getValueType(),
				BindableType.PLURAL_ATTRIBUTE
		);
	}

	@Override
	public String getPathName() {
		return getName();
	}

	@Override
	public CollectionClassification getCollectionClassification() {
		return classification;
	}

	@Override
	public SqmPathSource getElementPathSource() {
		return elementPathSource;
	}

	@Override
	public SqmPathSource findSubPathSource(String name) {
		return elementPathSource.findSubPathSource( name );
	}

	@Override
	public CollectionType getCollectionType() {
		return getCollectionClassification().toJpaClassification();
	}

	@Override
	public JavaTypeDescriptor getExpressableJavaTypeDescriptor() {
		return getElementType().getExpressableJavaTypeDescriptor();
	}

	@Override
	public SimpleDomainType getElementType() {
		return getValueGraphType();
	}

	@Override
	@SuppressWarnings("unchecked")
	public SimpleDomainType getValueGraphType() {
		return (SimpleDomainType) super.getValueGraphType();
	}

	@Override
	public SimpleDomainType getKeyGraphType() {
		return null;
	}

	@Override
	public boolean isAssociation() {
		return getPersistentAttributeType() == PersistentAttributeType.ONE_TO_MANY
				|| getPersistentAttributeType() == PersistentAttributeType.MANY_TO_MANY;
	}

	@Override
	public boolean isCollection() {
		return true;
	}

	@Override
	public BindableType getBindableType() {
		return BindableType.PLURAL_ATTRIBUTE;
	}

	@Override
	public Class getBindableJavaType() {
		return getElementType().getJavaType();
	}

	@Override
	public SqmPath createSqmPath(SqmPath lhs, SqmCreationState creationState) {
		final NavigablePath navigablePath = lhs.getNavigablePath().append( getPathName() );
		//noinspection unchecked
		return new SqmPluralValuedSimplePath(
				navigablePath,
				this,
				lhs,
				creationState.getCreationContext().getNodeBuilder()
		);
	}
}