chainedpropertyaccessor.java

hibernate-distribution-3.3.1.GA-dist.zip源码

/*
 * 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.property;

import org.hibernate.PropertyNotFoundException;

/**
 * @author max
 *
 */
public class ChainedPropertyAccessor implements PropertyAccessor {

	final PropertyAccessor[] chain;
	
	public ChainedPropertyAccessor(PropertyAccessor[] chain) {
		this.chain = chain;
	}
	
	public Getter getGetter(Class theClass, String propertyName)
			throws PropertyNotFoundException {
		Getter result = null;
		for (int i = 0; i < chain.length; i++) {
			PropertyAccessor candidate = chain[i];
			try {
				result = candidate.getGetter(theClass, propertyName);
				return result;
			} catch (PropertyNotFoundException pnfe) {
				// ignore
			}
		}
		throw new PropertyNotFoundException("Could not find getter for " + propertyName + " on " + theClass);
	}

	public Setter getSetter(Class theClass, String propertyName)
			throws PropertyNotFoundException {
		Setter result = null;
		for (int i = 0; i < chain.length; i++) {
			PropertyAccessor candidate = chain[i];
			try {
				result = candidate.getSetter(theClass, propertyName);
				return result;
			} catch (PropertyNotFoundException pnfe) {
				//
			}
		}
		throw new PropertyNotFoundException("Could not find setter for " + propertyName + " on " + theClass);
	}

}