/*
* Copyright (c) 2004, 2005, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*/
// DefaultHandler2.java - extended DefaultHandler
// http://www.saxproject.org
// Public Domain: no warranty.
// $Id: DefaultHandler2.java,v 1.2 2004/11/03 22:49:08 jsuttor Exp $
package org.xml.sax.ext;
import java.io.
IOException;
import org.xml.sax.
InputSource;
import org.xml.sax.
SAXException;
import org.xml.sax.helpers.
DefaultHandler;
/**
* This class extends the SAX2 base handler class to support the
* SAX2 {@link LexicalHandler}, {@link DeclHandler}, and
* {@link EntityResolver2} extensions. Except for overriding the
* original SAX1 {@link DefaultHandler#resolveEntity resolveEntity()}
* method the added handler methods just return. Subclassers may
* override everything on a method-by-method basis.
*
* <blockquote>
* <em>This module, both source code and documentation, is in the
* Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
* </blockquote>
*
* <p> <em>Note:</em> this class might yet learn that the
* <em>ContentHandler.setDocumentLocator()</em> call might be passed a
* {@link Locator2} object, and that the
* <em>ContentHandler.startElement()</em> call might be passed a
* {@link Attributes2} object.
*
* @since SAX 2.0 (extensions 1.1 alpha)
* @author David Brownell
*/
public class
DefaultHandler2 extends
DefaultHandler
implements
LexicalHandler,
DeclHandler,
EntityResolver2
{
/** Constructs a handler which ignores all parsing events. */
public
DefaultHandler2 () { }
// SAX2 ext-1.0 LexicalHandler
public void
startCDATA ()
throws
SAXException
{}
public void
endCDATA ()
throws
SAXException
{}
public void
startDTD (
String name,
String publicId,
String systemId)
throws
SAXException
{}
public void
endDTD ()
throws
SAXException
{}
public void
startEntity (
String name)
throws
SAXException
{}
public void
endEntity (
String name)
throws
SAXException
{}
public void
comment (char
ch [], int
start, int
length)
throws
SAXException
{ }
// SAX2 ext-1.0 DeclHandler
public void
attributeDecl (
String eName,
String aName,
String type,
String mode,
String value)
throws
SAXException
{}
public void
elementDecl (
String name,
String model)
throws
SAXException
{}
public void
externalEntityDecl (
String name,
String publicId,
String systemId)
throws
SAXException
{}
public void
internalEntityDecl (
String name,
String value)
throws
SAXException
{}
// SAX2 ext-1.1 EntityResolver2
/**
* Tells the parser that if no external subset has been declared
* in the document text, none should be used.
*/
public
InputSource getExternalSubset (
String name,
String baseURI)
throws
SAXException,
IOException
{ return null; }
/**
* Tells the parser to resolve the systemId against the baseURI
* and read the entity text from that resulting absolute URI.
* Note that because the older
* {@link DefaultHandler#resolveEntity DefaultHandler.resolveEntity()},
* method is overridden to call this one, this method may sometimes
* be invoked with null <em>name</em> and <em>baseURI</em>, and
* with the <em>systemId</em> already absolutized.
*/
public
InputSource resolveEntity (
String name,
String publicId,
String baseURI,
String systemId)
throws
SAXException,
IOException
{ return null; }
// SAX1 EntityResolver
/**
* Invokes
* {@link EntityResolver2#resolveEntity EntityResolver2.resolveEntity()}
* with null entity name and base URI.
* You only need to override that method to use this class.
*/
public
InputSource resolveEntity (
String publicId,
String systemId)
throws
SAXException,
IOException
{ return
resolveEntity (null,
publicId, null,
systemId); }
}