/*
* 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;
import com.googlecode.openbeans.DefaultPersistenceDelegate;
import com.googlecode.openbeans.Encoder;
import com.googlecode.openbeans.Expression;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;
class ProxyPersistenceDelegate extends DefaultPersistenceDelegate {
@Override
protected Expression instantiate(Object oldInstance, Encoder out) {
assert oldInstance instanceof Proxy : oldInstance;
Class<?>[] interfaces = oldInstance.getClass().getInterfaces();
InvocationHandler handler = Proxy.getInvocationHandler(oldInstance);
return new Expression(oldInstance, Proxy.class, "newProxyInstance", //$NON-NLS-1$
new Object[] { oldInstance.getClass().getClassLoader(), interfaces, handler });
}
@Override
protected void initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out) {
// check for consistency
assert oldInstance instanceof Proxy : oldInstance;
assert newInstance instanceof Proxy : newInstance;
super.initialize(type, oldInstance, newInstance, out);
}
@Override
protected boolean mutatesTo(Object oldInstance, Object newInstance) {
if((oldInstance instanceof Proxy) && (newInstance instanceof Proxy)){
return super.mutatesTo(oldInstance, newInstance);
}
return false;
}
}