| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed 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.lang; |
| |
| import org.codehaus.groovy.runtime.InvokerHelper; |
| |
| /** |
| * Represents a reference to a value |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public class Reference extends GroovyObjectSupport { |
| |
| private Object value; |
| |
| public Reference() { |
| } |
| |
| public Reference(Object value) { |
| this.value = value; |
| } |
| |
| public Object getProperty(String property) { |
| Object value = get(); |
| if (value != null) { |
| return InvokerHelper.getProperty(value, property); |
| } |
| return super.getProperty(property); |
| } |
| |
| public void setProperty(String property, Object newValue) { |
| Object value = get(); |
| if (value != null) { |
| InvokerHelper.setProperty(value, property, newValue); |
| } |
| else { |
| super.setProperty(property, newValue); |
| } |
| } |
| |
| public Object invokeMethod(String name, Object args) { |
| Object value = get(); |
| if (value != null) { |
| try { |
| return InvokerHelper.invokeMethod(value, name, args); |
| } |
| catch (Exception e) { |
| return super.invokeMethod(name, args); |
| } |
| } |
| else { |
| return super.invokeMethod(name, args); |
| } |
| } |
| |
| public Object get() { |
| return value; |
| } |
| |
| public void set(Object value) { |
| this.value = value; |
| } |
| } |