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Hibernate example source code file (NoopAccessor.java)

This example Hibernate source code file (NoopAccessor.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

getter, hibernateexception, method, noopaccessor, noopgetter, noopsetter, noopsetter, object, object, propertynotfoundexception, propertynotfoundexception, reflection, setter, string, string, util

The Hibernate NoopAccessor.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2009 by Red Hat Inc and/or its affiliates or by
 * third-party contributors as indicated by either @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.property;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.PropertyNotFoundException;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SessionImplementor;

/**
 * Used to declare properties not represented at the pojo level
 * 
 * @author Michael Bartmann
 */
public class NoopAccessor implements PropertyAccessor {
	/**
	 * {@inheritDoc}
	 */
	public Getter getGetter(Class arg0, String arg1) throws PropertyNotFoundException {
		return new NoopGetter();
	}

	/**
	 * {@inheritDoc}
	 */
	public Setter getSetter(Class arg0, String arg1) throws PropertyNotFoundException {
		return new NoopSetter();
	}

	/**
	 * A Getter which will always return null. It should not be called anyway.
	 */
	private static class NoopGetter implements Getter {
		/**
		 * {@inheritDoc}
		 * <p/>
		 * Here we always return <tt>null
		 */
		public Object get(Object target) throws HibernateException {
			return null;
		}

		/**
		 * {@inheritDoc}
		 */
		public Object getForInsert(Object target, Map map, SessionImplementor arg1)
				throws HibernateException {
			return null;
		}

		/**
		 * {@inheritDoc}
		 */
		public Class getReturnType() {
			return Object.class;
		}

		/**
		 * {@inheritDoc}
		 */
		public Member getMember() {
			return null;
		}

		/**
		 * {@inheritDoc}
		 */
		public String getMethodName() {
			return null;
		}

		/**
		 * {@inheritDoc}
		 */
		public Method getMethod() {
			return null;
		}
	}

	/**
	 * A Setter which will just do nothing.
	 */
	private static class NoopSetter implements Setter {
		/**
		 * {@inheritDoc}
		 */
		public void set(Object target, Object value, SessionFactoryImplementor arg2) {
			// nothing to do
		}

		/**
		 * {@inheritDoc}
		 */
		public String getMethodName() {
			return null;
		}

		/**
		 * {@inheritDoc}
		 */
		public Method getMethod() {
			return null;
		}

	}
}

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