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Hibernate example source code file (MyEntityTuplizer.java)

This example Hibernate source code file (MyEntityTuplizer.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

entitybinding, entitynameresolver, entitynameresolver, getter, myentityinstantiator, myentitynameresolver, myentitynameresolver, myentitytuplizer, myentitytuplizer, pojoentitytuplizer, proxyfactory, setter, string, string

The Hibernate MyEntityTuplizer.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2008, Red Hat Middleware LLC 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 Middleware LLC.
 *
 * 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.test.dynamicentity.tuplizer2;
import org.hibernate.EntityNameResolver;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.metamodel.binding.EntityBinding;
import org.hibernate.property.Getter;
import org.hibernate.property.Setter;
import org.hibernate.proxy.ProxyFactory;
import org.hibernate.test.dynamicentity.ProxyHelper;
import org.hibernate.test.dynamicentity.tuplizer.MyEntityInstantiator;
import org.hibernate.tuple.Instantiator;
import org.hibernate.tuple.entity.EntityMetamodel;
import org.hibernate.tuple.entity.PojoEntityTuplizer;

/**
 * @author Steve Ebersole
 */
public class MyEntityTuplizer extends PojoEntityTuplizer {

	public MyEntityTuplizer(EntityMetamodel entityMetamodel, PersistentClass mappedEntity) {
		super( entityMetamodel, mappedEntity );
	}

	public MyEntityTuplizer(EntityMetamodel entityMetamodel, EntityBinding mappedEntity) {
		super( entityMetamodel, mappedEntity );
	}

	public EntityNameResolver[] getEntityNameResolvers() {
		return new EntityNameResolver[] { MyEntityNameResolver.INSTANCE };
	}

	protected Instantiator buildInstantiator(PersistentClass persistentClass) {
		return new MyEntityInstantiator( persistentClass.getEntityName() );
	}

	public String determineConcreteSubclassEntityName(Object entityInstance, SessionFactoryImplementor factory) {
		String entityName = ProxyHelper.extractEntityName( entityInstance );
		if ( entityName == null ) {
			entityName = super.determineConcreteSubclassEntityName( entityInstance, factory );
		}
		return entityName;
	}

	protected ProxyFactory buildProxyFactory(PersistentClass persistentClass, Getter idGetter, Setter idSetter) {
		// allows defining a custom proxy factory, which is responsible for
		// generating lazy proxies for a given entity.
		//
		// Here we simply use the default...
		return super.buildProxyFactory( persistentClass, idGetter, idSetter );
	}

	public static class MyEntityNameResolver implements EntityNameResolver {
		public static final MyEntityNameResolver INSTANCE = new MyEntityNameResolver();

		public String resolveEntityName(Object entity) {
			return ProxyHelper.extractEntityName( entity );
		}

		public boolean equals(Object obj) {
			return getClass().equals( obj.getClass() );
		}

		public int hashCode() {
			return getClass().hashCode();
		}
	}
}

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