Java examples for Reflection:Property
Returns a list of a pojo's PropertyDescriptors minus the same for java.lang.Object.
/**/*from www .j av a 2 s .c o m*/ * Helios, OpenSource Monitoring * Brought to you by the Helios Development Group * * Copyright 2007, Helios Development Group and individual contributors * as indicated by the @author tags. See the copyright.txt file in the * distribution for a full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. * */ //package com.java2s; import java.beans.*; import java.util.ArrayList; import java.util.List; public class Main { public static void main(String[] argv) throws Exception { Object pojo = "java2s.com"; System.out.println(getPropertyDescriptors(pojo)); } /** * Returns a list of a pojo's <code>PropertyDescriptor</code>s minus the same for <code>java.lang.Object</code>. * @param pojo * @return A list of <code>PropertyDescriptor</code>s. */ public static List<PropertyDescriptor> getPropertyDescriptors( Object pojo) { List<PropertyDescriptor> list = getAllPropertyDescriptors(pojo); List<PropertyDescriptor> objList = getAllPropertyDescriptors(new Object()); list.removeAll(objList); return list; } /** * Returns a list of all of a pojo's <code>PropertyDescriptor</code>s * @param pojo * @return A list of <code>PropertyDescriptor</code>s. */ public static List<PropertyDescriptor> getAllPropertyDescriptors( Object pojo) { List<PropertyDescriptor> list = new ArrayList<PropertyDescriptor>(); BeanInfo bi = getBeanInfo(pojo); for (PropertyDescriptor pd : bi.getPropertyDescriptors()) { list.add(pd); } return list; } public static BeanInfo getBeanInfo(Object pojo) { try { return Introspector.getBeanInfo(pojo.getClass()); } catch (Exception e) { throw new RuntimeException("Failed to create bean info", e); } } }