/*
* $Id: TransformerFactory.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;
// Imports
import java.io.IOException;
import java.io.InputStream;
import java.io.FileInputStream;
import java.io.File;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Properties;
/**
* Abstract class extended by implementations.
*
* @author Andrew Selkirk, David Brownell
* @version 1.0
*/
public abstract class TransformerFactory {
/** Constructor, for use by subclasses. */
protected TransformerFactory() {
}
//-------------------------------------------------------------
// Methods ----------------------------------------------------
//-------------------------------------------------------------
/**
* Returns an object encapsulating the <?xml-stylesheet ?>
* processing instruction from the document that matches the
* specified criteria.
*/
public abstract Source getAssociatedStylesheet(Source source,
String media, String title, String charset)
throws TransformerConfigurationException;
/** Returns an implementation-specific attribute */
public abstract Object getAttribute(String name)
throws IllegalArgumentException;
/** Returns the ErrorListener used when parsing stylesheets. */
public abstract ErrorListener getErrorListener();
/**
* Exposes capabilities of the underlying implementation.
* Examples include SAXSource.FEATURE and DOMResult.FEATURE.
*/
public abstract boolean getFeature(String name);
/** Returns the URIResolver used when parsing stylesheets. */
public abstract URIResolver getURIResolver();
/**
* Returns a new TransformerFactory. The name of this class
* is found by checking, in order:
* the javax.xml.transform.TransformerFactory
* system property,
* $JAVA_HOME/lib/jaxp.properties for the key with
* that same name,
* JAR files in the class path with a META-INF/services
* file with that same name,
* else the compiled-in platform default.
*/
public static TransformerFactory newInstance()
throws TransformerFactoryConfigurationError
{
try {
return (TransformerFactory) ClassStuff.createFactory (
"javax.xml.transform.TransformerFactory",
"com.icl.saxon.TransformerFactoryImpl"
// "gnu.xml.util.SAXNullTransformerFactory"
// "org.apache.xalan.processor.TransformerFactoryImpl"
);
} catch (ClassCastException e) {
throw new TransformerFactoryConfigurationError(e);
}
}
/**
* Returns a pre-compiled stylesheet.
* @param stylesheet XSLT stylesheet specifying transform
*/
public abstract Templates newTemplates (Source stylesheet)
throws TransformerConfigurationException;
/**
* Returns a transformer that performs the null transform.
*/
public abstract Transformer newTransformer()
throws TransformerConfigurationException;
/**
* Returns a transformer making a specified transform.
* @param stylesheet XSLT stylesheet specifying transform
*/
public abstract Transformer newTransformer (Source stylesheet)
throws TransformerConfigurationException;
/** Assigns an implementation-specific attribute */
public abstract void setAttribute(String name, Object value)
throws IllegalArgumentException;
/** Assigns the ErrorListener used when parsing stylesheets. */
public abstract void setErrorListener(ErrorListener listener)
throws IllegalArgumentException;
/** Assigns the URIResolver used when parsing stylesheets. */
public abstract void setURIResolver(URIResolver resolver);
}