001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.commons.jxpath.ri.model.dynamic;
018
019 import java.util.Locale;
020
021 import org.apache.commons.jxpath.DynamicPropertyHandler;
022 import org.apache.commons.jxpath.JXPathBeanInfo;
023 import org.apache.commons.jxpath.JXPathIntrospector;
024 import org.apache.commons.jxpath.ri.QName;
025 import org.apache.commons.jxpath.ri.model.NodePointer;
026 import org.apache.commons.jxpath.ri.model.NodePointerFactory;
027 import org.apache.commons.jxpath.ri.model.beans.NullPointer;
028 import org.apache.commons.jxpath.util.ValueUtils;
029
030 /**
031 * Implements NodePointerFactory for Dynamic classes like Map.
032 *
033 * @author Dmitri Plotnikov
034 * @version $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $
035 */
036 public class DynamicPointerFactory implements NodePointerFactory {
037
038 /**
039 * Factory order constant.
040 */
041 public static final int DYNAMIC_POINTER_FACTORY_ORDER = 800;
042
043 public int getOrder() {
044 return DYNAMIC_POINTER_FACTORY_ORDER;
045 }
046
047 public NodePointer createNodePointer(
048 QName name,
049 Object bean,
050 Locale locale) {
051 JXPathBeanInfo bi = JXPathIntrospector.getBeanInfo(bean.getClass());
052 if (bi.isDynamic()) {
053 DynamicPropertyHandler handler =
054 ValueUtils.getDynamicPropertyHandler(
055 bi.getDynamicPropertyHandlerClass());
056 return new DynamicPointer(name, bean, handler, locale);
057 }
058 return null;
059 }
060
061 public NodePointer createNodePointer(
062 NodePointer parent,
063 QName name,
064 Object bean) {
065 if (bean == null) {
066 return new NullPointer(parent, name);
067 }
068
069 JXPathBeanInfo bi = JXPathIntrospector.getBeanInfo(bean.getClass());
070 if (bi.isDynamic()) {
071 DynamicPropertyHandler handler =
072 ValueUtils.getDynamicPropertyHandler(
073 bi.getDynamicPropertyHandlerClass());
074 return new DynamicPointer(parent, name, bean, handler);
075 }
076 return null;
077 }
078 }