| /* |
| * 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 org.apache.struts2.components; |
| |
| import com.opensymphony.xwork2.util.ValueStack; |
| import org.apache.struts2.views.annotations.StrutsTag; |
| |
| import java.io.Writer; |
| import java.util.Map; |
| |
| /** |
| * <!-- START SNIPPET: javadoc --> |
| * |
| * <p>Perform basic condition flow. 'If' tag could be used by itself or with 'Else If' Tag and/or single/multiple 'Else' |
| * Tag.</p> |
| * |
| * <!-- END SNIPPET: javadoc --> |
| * |
| * <!-- START SNIPPET: params --> |
| * |
| * no params |
| * |
| * <!-- END SNIPPET: params --> |
| * |
| * |
| * <pre> |
| * <!-- START SNIPPET: example --> |
| * <s:if test="%{false}"> |
| * <div>Will Not Be Executed</div> |
| * </s:if> |
| * <s:elseif test="%{true}"> |
| * <div>Will Be Executed</div> |
| * </s:elseif> |
| * <s:else> |
| * <div>Will Not Be Executed</div> |
| * </s:else> |
| * <!-- END SNIPPET: example --> |
| * </pre> |
| * |
| */ |
| @StrutsTag(name="else", tldTagClass="org.apache.struts2.views.jsp.ElseTag", description="Else tag") |
| public class Else extends Component { |
| public Else(ValueStack stack) { |
| super(stack); |
| } |
| |
| public boolean start(Writer writer) { |
| Map context = stack.getContext(); |
| Boolean ifResult = (Boolean) context.get(If.ANSWER); |
| |
| context.remove(If.ANSWER); |
| |
| return !((ifResult == null) || (ifResult)); |
| } |
| } |