Java tutorial
package com.autobizlogic.abl.util; import java.util.Collection; import java.util.Map; import java.util.Set; /** * A simplified BeanMap which uses our get and set methods. * Apache's beanutils is not sufficient for us because we want to be able * to get and set data members if get/set methods are not available. */ public class BeanMap implements Map<String, Object> { private Object bean; public BeanMap(Object bean) { this.bean = bean; } @Override public int size() { throw new RuntimeException("Not implemented for BeanMap"); } @Override public boolean isEmpty() { throw new RuntimeException("Not implemented for BeanMap"); } @Override public boolean containsKey(Object key) { return BeanUtil.beanHasProperty(bean, (String) key); } @Override public boolean containsValue(Object value) { throw new RuntimeException("Not implemented for BeanMap"); } @Override public Object get(Object key) { if (!BeanUtil.beanHasProperty(bean, (String) key)) return null; return BeanUtil.getBeanProperty(bean, (String) key); } @Override public Object put(String key, Object value) { Object oldValue = BeanUtil.getBeanProperty(bean, key); BeanUtil.setBeanProperty(bean, key, value); return oldValue; } @Override public Object remove(Object key) { throw new RuntimeException("Not implemented for BeanMap"); } @Override public void putAll(Map<? extends String, ? extends Object> m) { for (String name : m.keySet()) { put(name, m.get(name)); } } @Override public void clear() { throw new RuntimeException("Not implemented for BeanMap"); } @SuppressWarnings("unchecked") @Override public Set<String> keySet() { org.apache.commons.beanutils.BeanMap bmap = new org.apache.commons.beanutils.BeanMap(bean); return bmap.keySet(); } @Override public Collection<Object> values() { throw new RuntimeException("Not implemented for BeanMap"); } @Override public Set<java.util.Map.Entry<String, Object>> entrySet() { throw new RuntimeException("Not implemented for BeanMap"); } } /* * The contents of this file are subject to the Automated Business Logic Public License Version 1.0 (the "License"), * which is derived from the Mozilla Public License version 1.1. You may not use this file except in compliance with the License. * You may obtain a copy of the License at http://www.automatedbusinesslogic.com/license/public-license * * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, * either express or implied. See the License for the specific language governing rights and limitations under the License. */