Java tutorial
/* * 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.commons.jxpath; import java.util.Iterator; import java.util.Map; import java.util.Set; /** * Implements the DynamicPropertyHandler interface for {@link java.util.Map}. * * @author Dmitri Plotnikov * @version $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $ */ public class MapDynamicPropertyHandler implements DynamicPropertyHandler { public String[] getPropertyNames(Object object) { Map map = (Map) object; Set set = map.keySet(); String[] names = new String[set.size()]; Iterator it = set.iterator(); for (int i = 0; i < names.length; i++) { names[i] = String.valueOf(it.next()); } return names; } public Object getProperty(Object object, String propertyName) { return ((Map) object).get(propertyName); } public void setProperty(Object object, String propertyName, Object value) { ((Map) object).put(propertyName, value); } }