| /* |
| * $Id$ |
| * |
| * 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.tiles.request.jsp.extractor; |
| |
| import java.util.Enumeration; |
| |
| import javax.servlet.jsp.JspContext; |
| |
| import org.apache.tiles.request.attribute.AttributeExtractor; |
| |
| /** |
| * Extracts attributes from a numbered scope from {@link JspContext}. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class ScopeExtractor implements AttributeExtractor { |
| |
| /** |
| * The JSP context. |
| */ |
| private JspContext context; |
| |
| /** |
| * The scope number to use. |
| */ |
| private int scope; |
| |
| /** |
| * Constructor. |
| * |
| * @param context The JSP context. |
| * @param scope The scope number. |
| */ |
| public ScopeExtractor(JspContext context, int scope) { |
| this.context = context; |
| this.scope = scope; |
| } |
| |
| @Override |
| public void removeValue(String name) { |
| context.removeAttribute(name, scope); |
| } |
| |
| @Override |
| public Enumeration<String> getKeys() { |
| return context.getAttributeNamesInScope(scope); |
| } |
| |
| @Override |
| public Object getValue(String key) { |
| return context.getAttribute(key, scope); |
| } |
| |
| @Override |
| public void setValue(String key, Object value) { |
| context.setAttribute(key, value, scope); |
| } |
| } |