Hibernate example source code file (RootEntitySourceImpl.java)

This example Hibernate source code file (RootEntitySourceImpl.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

composed, discriminatorsource, embedded, identifiersource, idtype, notyetimplementedexception, notyetimplementedexception, override, override, rootentitysourceimpl, singularattributesource, singularattributesource, string, string

The Hibernate RootEntitySourceImpl.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, 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.metamodel.source.annotations.entity;

import org.hibernate.AssertionFailure;
import org.hibernate.EntityMode;
import org.hibernate.cfg.NotYetImplementedException;
import org.hibernate.engine.OptimisticLockStyle;
import org.hibernate.metamodel.binding.Caching;
import org.hibernate.metamodel.source.annotations.attribute.BasicAttribute;
import org.hibernate.metamodel.source.annotations.attribute.DiscriminatorSourceImpl;
import org.hibernate.metamodel.source.annotations.attribute.SimpleIdentifierSourceImpl;
import org.hibernate.metamodel.source.annotations.attribute.SingularAttributeSourceImpl;
import org.hibernate.metamodel.source.binder.DiscriminatorSource;
import org.hibernate.metamodel.source.binder.IdentifierSource;
import org.hibernate.metamodel.source.binder.RootEntitySource;
import org.hibernate.metamodel.source.binder.SingularAttributeSource;

/**
 * @author Hardy Ferentschik
 */
public class RootEntitySourceImpl extends EntitySourceImpl implements RootEntitySource {
	public RootEntitySourceImpl(EntityClass entityClass) {
		super( entityClass );
	}

	@Override
	public IdentifierSource getIdentifierSource() {
		IdType idType = getEntityClass().getIdType();
		switch ( idType ) {
			case SIMPLE: {
				BasicAttribute attribute = getEntityClass().getIdAttributes().iterator().next();
				return new SimpleIdentifierSourceImpl( attribute, getEntityClass().getAttributeOverrideMap() );
			}
			case COMPOSED: {
				throw new NotYetImplementedException( "Composed ids must still be implemented." );
			}
			case EMBEDDED: {
				throw new NotYetImplementedException( "Embedded ids must still be implemented." );
			}
			default: {
				throw new AssertionFailure( "The root entity needs to specify an identifier" );
			}
		}
	}

	@Override
	public SingularAttributeSource getVersioningAttributeSource() {
		SingularAttributeSource attributeSource = null;
		EntityClass entityClass = getEntityClass();
		if ( entityClass.getVersionAttribute() != null ) {
			attributeSource = new SingularAttributeSourceImpl( entityClass.getVersionAttribute() );
		}
		return attributeSource;
	}

	@Override
	public DiscriminatorSource getDiscriminatorSource() {
		DiscriminatorSource discriminatorSource = null;
		if ( getEntityClass().getDiscriminatorColumnValues() != null ) {
			discriminatorSource = new DiscriminatorSourceImpl( getEntityClass() );
		}
		return discriminatorSource;
	}

	@Override
	public EntityMode getEntityMode() {
		return EntityMode.POJO;
	}

	@Override
	public boolean isMutable() {
		return getEntityClass().isMutable();
	}

	@Override
	public boolean isExplicitPolymorphism() {
		return getEntityClass().isExplicitPolymorphism();
	}

	@Override
	public String getWhere() {
		return getEntityClass().getWhereClause();
	}

	@Override
	public String getRowId() {
		return getEntityClass().getRowId();
	}

	@Override
	public OptimisticLockStyle getOptimisticLockStyle() {
		return getEntityClass().getOptimisticLockStyle();
	}

	@Override
	public Caching getCaching() {
		return getEntityClass().getCaching();
	}
}