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 * MultiplexMappingDefinition.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: MultiplexMappingDefinition.java,v 1.3 2005/10/18 13:33:53 mungady Exp $
036 *
037 * Changes 
038 * -------
039 * 22-Nov-2003 : Initial version
040 *  
041 */
042
043package org.jfree.xml.util;
044
045import java.util.HashMap;
046
047/**
048 * Maps a class to ...
049 */
050public class MultiplexMappingDefinition {
051
052    /** The class. */
053    private Class baseClass;
054
055    /** The attribute name. */
056    private String attributeName;
057    
058    /** The forward mappings. */
059    private HashMap forwardMappings;
060    
061    /** The reverse mappings. */
062    private HashMap reverseMappings;
063
064    /**
065     * Creates a new mapping definition.
066     * 
067     * @param baseClass  the class.
068     * @param attributeName  the attribute name.
069     * @param entries  the entries.
070     */
071    public MultiplexMappingDefinition(final Class baseClass,
072                                      final String attributeName,
073                                      final MultiplexMappingEntry[] entries) {
074        
075        this.attributeName = attributeName;
076        this.baseClass = baseClass;
077        this.forwardMappings = new HashMap();
078        this.reverseMappings = new HashMap();
079
080        for (int i = 0; i < entries.length; i++) {
081            final MultiplexMappingEntry entry = entries[i];
082            this.forwardMappings.put(entry.getAttributeValue(), entry);
083            this.reverseMappings.put(entry.getTargetClass(), entry);
084        }
085    }
086
087    /**
088     * Returns the attribute name.
089     * 
090     * @return The attribute name.
091     */
092    public String getAttributeName() {
093        return this.attributeName;
094    }
095
096    /**
097     * Returns the class.
098     * 
099     * @return The class.
100     */
101    public Class getBaseClass() {
102        return this.baseClass;
103    }
104
105    /**
106     * Returns a mapping entry for a type.
107     * 
108     * @param type  the type.
109     * 
110     * @return The mapping entry.
111     */
112    public MultiplexMappingEntry getEntryForType(final String type) {
113        return (MultiplexMappingEntry) this.forwardMappings.get(type);
114    }
115
116    /**
117     * Returns a mapping entry for a class.
118     * 
119     * @param clazz  the class.
120     * 
121     * @return The mapping entry.
122     */
123    public MultiplexMappingEntry getEntryForClass(final String clazz) {
124        return (MultiplexMappingEntry) this.reverseMappings.get(clazz);
125    }
126}