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/*
* $Id: SAXTransformerFactory.java,v 1.1 2003-02-01 02:10:28 cbj Exp $
* Copyright (C) 2001 Andrew Selkirk
* Copyright (C) 2001 David Brownell
*
* This file is part of GNU JAXP, a library.
*
* GNU JAXP is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GNU JAXP 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* As a special exception, if you link this library with other files to
* produce an executable, this library does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* This exception does not however invalidate any other reasons why the
* executable file might be covered by the GNU General Public License.
*/
package javax.xml.transform.sax;
// Imports
import org.xml.sax.InputSource;
import org.xml.sax.XMLFilter;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Templates;
import javax.xml.transform.TransformerConfigurationException;
/**
* A TransformerFactory that supports several separate modes for
* working with SAX inputs and outputs. Those modes include: <ul>
*
* <li> Pipeline Stage, pushing events through {@link TransformerHandler}
* objects used as SAX handlers, and passing the transformed data
* through a {@link SAXResult} encapsulating SAX ContentHandler and
* LexicalHandler objects;
* <li> Pipeline Termination, like a normal pipeline stage but using some
* other kind of {@link Result} to store transformed data rather than
* passing it to another stage;
* <li> Event producer, an {@link XMLFilter} object taking data from a URI
* or from a SAX {@link InputSource} input object and delivering it
* to a SAX ContentHandler;
* <li> Transformer objects produced by this factory will usually be able
* to accept {@link SAXSource} objects as inputs, and the XMLReader
* object in such a source could be an XMLFilter.
* </ul>
*
* <p>Transformer objects produced by this factory will of course be
* able to perform {@link Transformer#transform Transformer.transform()}
* operations to map XML text into other text.
*
* <p>The factory also supports creating Templates objects.
*
* @author Andrew Selkirk, David Brownell
* @version 1.0
*/
public abstract class SAXTransformerFactory extends TransformerFactory
{
/**
* Used with <em>TransformerFactory.getFeature()</em> to determine
* whether the transformers it produces extend this class.
*/
public static final String FEATURE =
"http://javax.xml.transform.sax.SAXTransformerFactory/feature";
/**
* Used with <em>TransformerFactory.getFeature()</em> to determine
* whether <em>newXMLFilter()</em> methods are supported.
*/
public static final String FEATURE_XMLFILTER =
"http://javax.xml.transform.sax.SAXTransformerFactory/feature/xmlfilter";
//-------------------------------------------------------------
// Initialization ---------------------------------------------
//-------------------------------------------------------------
/** Constructor, for use with subclasses */
protected SAXTransformerFactory() {
}
//-------------------------------------------------------------
// Methods ----------------------------------------------------
//-------------------------------------------------------------
/**
* Returns a SAX event consumer sending its inputs to some Result
* after transforming them according to a stylesheet.
*/
public abstract TransformerHandler
newTransformerHandler (Source stylesheet)
throws TransformerConfigurationException;
/**
* Returns a SAX event consumer sending its inputs to some Result
* after transforming them according to a pre-parsed stylesheet.
*/
public abstract TransformerHandler
newTransformerHandler (Templates stylesheet)
throws TransformerConfigurationException;
/**
* Returns a SAX event consumer sending its inputs to some Result
* without transforming them (null transformation).
*/
public abstract TransformerHandler newTransformerHandler()
throws TransformerConfigurationException;
/**
* Returns a SAX parser that transforms XML data according
* to a stylesheet before reporting SAX events.
*/
public abstract XMLFilter newXMLFilter (Source stylesheet)
throws TransformerConfigurationException;
/**
* Returns a SAX parser that transforms XML data according
* to a pre-parsed stylesheet before reporting SAX events.
*/
public abstract XMLFilter newXMLFilter (Templates stylesheet)
throws TransformerConfigurationException;
/**
* Returns a SAX event consumer collecting its inputs into
* a pre-parsed stylesheet.
*/
public abstract TemplatesHandler newTemplatesHandler()
throws TransformerConfigurationException;
}
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