001 /* 002 * Copyright 2002-2004 The Apache Software Foundation 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 package org.apache.commons.clazz.bean; 017 018 import org.apache.commons.clazz.ClazzLoader; 019 import org.apache.commons.clazz.ModelClazzLoader; 020 import org.apache.commons.clazz.common.GroupClazzLoader; 021 022 /** 023 * 024 * @author <a href="mailto:dmitri@apache.org">Dmitri Plotnikov</a> 025 * @version $Id: BeanGroupClazzLoader.java 155436 2005-02-26 13:17:48Z dirkv $ 026 */ 027 public class BeanGroupClazzLoader extends GroupClazzLoader { 028 029 public BeanGroupClazzLoader(ModelClazzLoader modelClazzLoader) { 030 super(modelClazzLoader); 031 } 032 033 public boolean canAddClazzLoader(ClazzLoader loader) { 034 return loader instanceof BeanClazzLoader; 035 } 036 037 public boolean isMember(Object instance) { 038 // This is just an optimization - the Group can answer for all 039 // of its members without checking with each one individually 040 return instance instanceof Bean; 041 } 042 043 /** 044 * @see GroupClazzLoader#getClazzName(Object) 045 */ 046 public String getClazzName(Object instance) { 047 // This is just an optimization - the Group can answer for all 048 // of its members without checking with each one individually 049 if (!isMember(instance)) { 050 return null; 051 } 052 return super.getClazzName(instance); 053 } 054 }