/*
* 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 groovy.util;
import groovy.lang.
GroovyObjectSupport;
import groovy.lang.
MissingMethodException;
import org.codehaus.groovy.runtime.
InvokerHelper;
import java.util.
Iterator;
/**
* Dynamic groovy proxy for another object. All method
* invocations get forwarded to actual object, unless the proxy overrides it.
* See groovy/util/ProxyTest.groovy for usage details.
*
* @author Troy Heninger
* @author Dierk Koenig
*/
public class
Proxy extends
GroovyObjectSupport {
private
Object adaptee = null;
/**
* This method is for convenience.
* It allows to get around the need for defining dump ctors in subclasses.
* See unit tests for details.
*/
public
Proxy wrap(
Object adaptee){
setAdaptee(
adaptee);
return this;
}
public
Object getAdaptee() {
return
adaptee;
}
public void
setAdaptee(
Object adaptee) {
this.
adaptee =
adaptee;
}
public
Object invokeMethod(
String name,
Object args) {
try {
return super.invokeMethod(
name,
args);
}
catch (
MissingMethodException e) {
return
InvokerHelper.
invokeMethod(
adaptee,
name,
args);
}
}
public
Iterator iterator() {
return
InvokerHelper.
asIterator(
adaptee);
}
}