| /* |
| * Copyright 1999,2005 The Apache Software Foundation. |
| * |
| * 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.apache.jasper.tagplugins.jstl.core; |
| |
| import org.apache.jasper.compiler.tagplugin.TagPlugin; |
| import org.apache.jasper.compiler.tagplugin.TagPluginContext; |
| import org.apache.jasper.tagplugins.jstl.Util; |
| |
| public class Remove implements TagPlugin { |
| |
| public void doTag(TagPluginContext ctxt) { |
| |
| //scope flag |
| boolean hasScope = ctxt.isAttributeSpecified("scope"); |
| |
| //the value of the "var" |
| String strVar = ctxt.getConstantAttribute("var"); |
| |
| //remove attribute from certain scope. |
| //default scope is "page". |
| if(hasScope){ |
| int iScope = Util.getScope(ctxt.getConstantAttribute("scope")); |
| ctxt.generateJavaSource("pageContext.removeAttribute(\"" + strVar + "\"," + iScope + ");"); |
| }else{ |
| ctxt.generateJavaSource("pageContext.removeAttribute(\"" + strVar + "\");"); |
| } |
| } |
| |
| } |