/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------------
* SimpleObjectFactory.java
* ------------------------
* (C)opyright 2003-2005, by Thomas Morgner and Contributors.
*
* Original Author: Thomas Morgner;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: SimpleObjectFactory.java,v 1.3 2005/10/18 13:33:53 mungady Exp $
*
* Changes
* -------
* 02-Dec-2003 : Initial version
*
*/
package org.jfree.xml.util;
import java.util.HashMap;
/**
* A simple object factory.
*/
public class SimpleObjectFactory implements ObjectFactory {
/** The object mappings. */
private HashMap objectMappings;
/** The manual object mappings. */
private HashMap manualMappings;
/** The multiplex mappings. */
private HashMap multiplexMappings;
/**
* Creates a new instance.
*/
public SimpleObjectFactory() {
this.objectMappings = new HashMap();
this.manualMappings = new HashMap();
this.multiplexMappings = new HashMap();
}
/**
* Adds a manual mapping.
*
* @param mapping the mapping.
*/
public void addManualMapping(final ManualMappingDefinition mapping) {
this.manualMappings.put(mapping.getBaseClass(), mapping);
}
/**
* Adds a generic handler.
*
* @param handler the handler.
*/
public void addGenericHandler(final GenericObjectFactory handler) {
this.objectMappings.put(handler.getBaseClass(), handler);
}
/**
* Adds a multiplex mapping.
*
* @param mplex the multiplex mapping.
*/
public void addMultiplexMapping(final MultiplexMappingDefinition mplex) {
this.multiplexMappings.put(mplex.getBaseClass(), mplex);
}
/**
* Clears the mappings.
*/
public void clear() {
this.objectMappings.clear();
this.manualMappings.clear();
this.multiplexMappings.clear();
}
/**
* Returns a factory instance for the given class. The factory is independent
* from all previously generated instances.
*
* @param c the class
* @return the object factory.
*/
public GenericObjectFactory getFactoryForClass(final Class c) {
final GenericObjectFactory factory = (GenericObjectFactory) this.objectMappings.get(c);
if (factory == null) {
return null;
}
return factory.getInstance();
}
/**
* Returns the manual mapping definition for the given class, or null, if
* not manual definition exists.
*
* @param c the class for which to check the existence of the definition
* @return the manual mapping definition or null.
*/
public ManualMappingDefinition getManualMappingDefinition(final Class c) {
return (ManualMappingDefinition) this.manualMappings.get(c);
}
/**
* Returns the multiplex definition for the given class, or null, if no
* such definition exists.
*
* @param c the class for which to check the existence of the multiplexer
* @return the multiplexer for the class, or null if no multiplexer exists.
*/
public MultiplexMappingDefinition getMultiplexDefinition(final Class c) {
final MultiplexMappingDefinition definition = (MultiplexMappingDefinition)
this.multiplexMappings.get(c);
return definition;
}
/**
* Checks, whether a generic handler exists for the given class. This does
* not check, whether an mapping exists.
*
* @param c the class for which to check
* @return true, if an generic handler is defined, false otherwise.
*/
public boolean isGenericHandler(final Class c) {
return this.objectMappings.containsKey(c);
}
}