001/* ======================================================================== 002 * JCommon : a free general purpose class library for the Java(tm) platform 003 * ======================================================================== 004 * 005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jcommon/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * --------------------- 028 * ListWriteHandler.java 029 * --------------------- 030 * (C)opyright 2003-2005, by Thomas Morgner and Contributors. 031 * 032 * Original Author: Thomas Morgner; 033 * Contributor(s): David Gilbert (for Object Refinery Limited); 034 * 035 * $Id: ListWriteHandler.java,v 1.4 2005/10/18 13:35:21 mungady Exp $ 036 * 037 * Changes 038 * ------- 039 * 22-Nov-2003 : Initial version 040 * 041 */ 042 043package org.jfree.xml.writer.coretypes; 044 045import java.io.IOException; 046import java.util.Iterator; 047import java.util.List; 048 049import org.jfree.xml.writer.AbstractXmlWriteHandler; 050import org.jfree.xml.writer.XMLWriter; 051import org.jfree.xml.writer.XMLWriterException; 052import org.jfree.xml.writer.XMLWriterSupport; 053 054/** 055 * A handler for writing a {@link List} object. 056 */ 057public class ListWriteHandler extends AbstractXmlWriteHandler { 058 059 /** 060 * Performs the writing of a {@link List} object. 061 * 062 * @param tagName the tag name. 063 * @param object the {@link List} object. 064 * @param writer the writer. 065 * @param mPlexAttribute ??. 066 * @param mPlexValue ??. 067 * 068 * @throws IOException if there is an I/O error. 069 * @throws XMLWriterException if there is a writer error. 070 */ 071 public void write(final String tagName, final Object object, final XMLWriter writer, 072 final String mPlexAttribute, final String mPlexValue) 073 throws IOException, XMLWriterException { 074 075 writer.writeTag(tagName, mPlexAttribute, mPlexValue, XMLWriterSupport.OPEN); 076 077 final List list = (List) object; 078 final Iterator it = list.iterator(); 079 while (it.hasNext()) { 080 final Object value = it.next(); 081 if (value == null) { 082 writer.writeTag("null", XMLWriterSupport.CLOSE); 083 } 084 else { 085 getRootHandler().write("object", value, Object.class, writer); 086 } 087 } 088 089 writer.writeCloseTag(tagName); 090 } 091 092}