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App55 client library for the Java platform.

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/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package com.googlecode.openbeans;


class NullPersistenceDelegate extends PersistenceDelegate
{
	@Override
	protected Expression instantiate(Object oldInstance, Encoder out)
	{
		return null;
	}

	@Override
	/*
	 * It's unnecessary to do anything for initialization, because two mutatable strings are actually equivalent already.
	 */
	protected void initialize(Class type, Object oldInstance, Object newInstance, Encoder out)
	{
		// do nothing
	}

	@Override
	public void writeObject(Object oldInstance, Encoder out)
	{
		// do nothing
	}
}