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
043 package org.jfree.xml.writer.coretypes;
044
045 import java.io.IOException;
046 import java.util.Iterator;
047 import java.util.List;
048
049 import org.jfree.xml.writer.AbstractXmlWriteHandler;
050 import org.jfree.xml.writer.XMLWriter;
051 import org.jfree.xml.writer.XMLWriterException;
052 import org.jfree.xml.writer.XMLWriterSupport;
053
054 /**
055 * A handler for writing a {@link List} object.
056 */
057 public 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 }