/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2001, 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package com.sun.org.apache.xerces.internal.impl.dv;
import java.util.Hashtable;
/**
* The factory to create and return DTD types. The implementation should
* store the created datatypes in static data, so that they can be shared by
* multiple parser instance, and multiple threads.
*
* @author Sandy Gao, IBM
*
* @version $Id: DTDDVFactory.java,v 1.7 2004/02/17 07:14:48 neeraj Exp $
*/
public abstract class DTDDVFactory {
private static final String DEFAULT_FACTORY_CLASS = "com.sun.org.apache.xerces.internal.impl.dv.dtd.DTDDVFactoryImpl";
/**
* Get an instance of the default DTDDVFactory implementation.
*
* @return an instance of DTDDVFactory implementation
* @exception DVFactoryException cannot create an instance of the specified
* class name or the default class name
*/
public static synchronized final DTDDVFactory getInstance() throws DVFactoryException {
return getInstance(DEFAULT_FACTORY_CLASS);
}
/**
* Get an instance of DTDDVFactory implementation.
*
* @param factoryClass name of the implementation to load.
* @return an instance of DTDDVFactory implementation
* @exception DVFactoryException cannot create an instance of the specified
* class name or the default class name
*/
public static synchronized final DTDDVFactory getInstance(String factoryClass) throws DVFactoryException {
try {
// if the class name is not specified, use the default one
return (DTDDVFactory)
(ObjectFactory.newInstance(factoryClass, ObjectFactory.findClassLoader(), true));
} catch (ClassCastException e) {
throw new DVFactoryException("DTD factory class " + factoryClass + " does not extend from DTDDVFactory.");
}
}
// can't create a new object of this class
protected DTDDVFactory(){}
/**
* return a dtd type of the given name
*
* @param name the name of the datatype
* @return the datatype validator of the given name
*/
public abstract DatatypeValidator getBuiltInDV(String name);
/**
* get all built-in DVs, which are stored in a hashtable keyed by the name
*
* @return a hashtable which contains all datatypes
*/
public abstract Hashtable getBuiltInTypes();
}
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