| /* |
| * Copyright 2004-2005 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 org.codehaus.groovy.grails.commons.metaclass; |
| |
| import groovy.lang.Interceptor; |
| /** |
| * Implements an the Interceptor interface to add support for using ProxyMetaClass to define |
| * dynamic methods |
| * |
| * @author Graeme Rocher |
| * @since Oct 24, 2005 |
| */ |
| public abstract class AbstractDynamicMethodsInterceptor extends AbstractDynamicMethods |
| implements Interceptor,PropertyAccessInterceptor { |
| |
| protected boolean doInvoke = true; |
| protected boolean doGet = true; |
| protected boolean doSet = true; |
| private Object returnValue; |
| |
| |
| public Object beforeInvoke(Object target, String methodName, |
| Object[] arguments) { |
| InvocationCallback callback = new InvocationCallback(); |
| this.returnValue = super.invokeMethod(target, methodName, arguments, callback); |
| // if the method was invoked as dynamic |
| // don't invoke true target |
| if (callback.isInvoked()) { |
| doInvoke = false; |
| return returnValue; |
| } else { |
| doInvoke = true; |
| return null; |
| } |
| } |
| |
| public Object afterInvoke(Object object, String methodName, |
| Object[] arguments, Object result) { |
| return this.returnValue; |
| } |
| |
| public boolean doInvoke() { |
| return doInvoke; |
| } |
| |
| public Object beforeGet(Object object, String property) { |
| InvocationCallback callback = new InvocationCallback(); |
| Object returnValue = super.getProperty(object,property,callback); |
| // if the method was invoked as dynamic |
| // don't invoke true target |
| if (callback.isInvoked()) { |
| doGet = false; |
| return returnValue; |
| } else { |
| doGet = true; |
| return null; |
| } |
| } |
| |
| public void beforeSet(Object object, String property, Object newValue) { |
| InvocationCallback callback = new InvocationCallback(); |
| super.setProperty(object,property,newValue,callback); |
| // if the method was invoked as dynamic |
| // don't invoke true target |
| if (callback.isInvoked()) { |
| doSet = false; |
| } else { |
| doSet = true; |
| } |
| } |
| |
| public boolean doGet() { |
| return doGet; |
| } |
| |
| public boolean doSet() { |
| return doSet; |
| } |
| |
| } |