001 package org.apache.myfaces.tobago.event; 002 003 /* 004 * Licensed to the Apache Software Foundation (ASF) under one or more 005 * contributor license agreements. See the NOTICE file distributed with 006 * this work for additional information regarding copyright ownership. 007 * The ASF licenses this file to You under the Apache License, Version 2.0 008 * (the "License"); you may not use this file except in compliance with 009 * the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 */ 019 020 import org.apache.myfaces.tobago.compat.FacesUtilsEL; 021 022 import javax.el.MethodExpression; 023 import javax.faces.component.StateHolder; 024 import javax.faces.context.FacesContext; 025 import javax.faces.event.AbortProcessingException; 026 027 public class MethodExpressionTabChangeListener implements TabChangeListener, StateHolder { 028 029 private MethodExpression methodExpression; 030 031 private boolean isTransient = false; 032 033 public MethodExpressionTabChangeListener() { 034 } 035 036 public MethodExpressionTabChangeListener(MethodExpression methodExpression) { 037 this.methodExpression = methodExpression; 038 } 039 040 public void processTabChange(TabChangeEvent actionEvent) throws AbortProcessingException { 041 FacesUtilsEL.invokeMethodExpression(FacesContext.getCurrentInstance(), methodExpression, actionEvent); 042 } 043 044 public void restoreState(FacesContext context, Object state) { 045 methodExpression = (MethodExpression) state; 046 } 047 048 public Object saveState(FacesContext context) { 049 return methodExpression; 050 } 051 052 public void setTransient(boolean newTransientValue) { 053 isTransient = newTransientValue; 054 } 055 056 public boolean isTransient() { 057 return isTransient; 058 } 059 060 }