| /* |
| * 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 javax.faces.event; |
| |
| import javax.el.ELContext; |
| import javax.el.ELException; |
| import javax.el.MethodExpression; |
| import javax.faces.component.StateHolder; |
| import javax.faces.context.FacesContext; |
| |
| /** |
| * See Javadoc of <a href="http://java.sun.com/javaee/javaserverfaces/1.2/docs/api/index.html">JSF Specification</a> |
| * |
| * @author Stan Silvert |
| */ |
| public class MethodExpressionActionListener implements ActionListener, StateHolder { |
| |
| private MethodExpression methodExpression; |
| |
| private boolean isTransient = false; |
| |
| /** Creates a new instance of MethodExpressionActionListener */ |
| public MethodExpressionActionListener() { |
| } |
| |
| public MethodExpressionActionListener(MethodExpression methodExpression) { |
| this.methodExpression = methodExpression; |
| } |
| |
| public void processAction(ActionEvent actionEvent) throws AbortProcessingException { |
| try |
| { |
| Object[] params = new Object[]{actionEvent}; |
| methodExpression.invoke(elContext(), params); |
| } |
| catch (ELException e) |
| { |
| Throwable cause = e.getCause(); |
| if (cause != null && cause instanceof AbortProcessingException) |
| { |
| throw (AbortProcessingException)cause; |
| } |
| else |
| { |
| throw e; |
| } |
| } |
| } |
| |
| private ELContext elContext() { |
| return FacesContext.getCurrentInstance().getELContext(); |
| } |
| |
| public void restoreState(FacesContext context, Object state) { |
| methodExpression = (MethodExpression)state; |
| } |
| |
| public Object saveState(FacesContext context) { |
| return methodExpression; |
| } |
| |
| public void setTransient(boolean newTransientValue) { |
| isTransient = newTransientValue; |
| } |
| |
| public boolean isTransient() { |
| return isTransient; |
| } |
| |
| } |