net.sf.saxon
Class TransformerFactoryImpl

java.lang.Object
  extended by javax.xml.transform.TransformerFactory
      extended by javax.xml.transform.sax.SAXTransformerFactory
          extended by net.sf.saxon.TransformerFactoryImpl
Direct Known Subclasses:
SchemaAwareTransformerFactory

public class TransformerFactoryImpl
extends SAXTransformerFactory

A TransformerFactoryImpl instance can be used to create Transformer and Template objects.

The system property that determines which Factory implementation to create is named "javax.xml.transform.TransformerFactory". This property names a concrete subclass of the TransformerFactory abstract class. If the property is not defined, a platform default is be used.

This implementation class implements the abstract methods on both the javax.xml.transform.TransformerFactory and javax.xml.transform.sax.SAXTransformerFactory classes.


Field Summary
 
Fields inherited from class javax.xml.transform.sax.SAXTransformerFactory
FEATURE, FEATURE_XMLFILTER
 
Constructor Summary
TransformerFactoryImpl()
          Default constructor.
TransformerFactoryImpl(Configuration config)
          Construct a TransformerFactory using an existing Configuration.
 
Method Summary
 Source getAssociatedStylesheet(Source source, String media, String title, String charset)
          Get the stylesheet specification(s) associated via the xml-stylesheet processing instruction (see http://www.w3.org/TR/xml-stylesheet/) with the document document specified in the source parameter, and that match the given criteria.
 Object getAttribute(String name)
          Allows the user to retrieve specific attributes on the underlying implementation.
 Configuration getConfiguration()
          Get the configuration.
 ErrorListener getErrorListener()
          Get the error event handler for the TransformerFactory.
 boolean getFeature(String name)
          Look up the value of a feature.
 URIResolver getURIResolver()
          Get the object that is used by default during the transformation to resolve URIs used in document(), xsl:import, or xsl:include.
 Templates newTemplates(Source source)
          Process the Source into a Templates object, which is a a compiled representation of the source.
 Templates newTemplates(Source source, CompilerInfo info)
          Process the Source into a Templates object, which is a a compiled representation of the source.
 TemplatesHandler newTemplatesHandler()
          Get a TemplatesHandler object that can process SAX ContentHandler events into a Templates object.
 Transformer newTransformer()
          Create a new Transformer object that performs a copy of the source to the result.
 Transformer newTransformer(Source source)
          Process the Source into a Transformer object.
 TransformerHandler newTransformerHandler()
          Get a TransformerHandler object that can process SAX ContentHandler events into a Result.
 TransformerHandler newTransformerHandler(Source src)
          Get a TransformerHandler object that can process SAX ContentHandler events into a Result, based on the transformation instructions specified by the argument.
 TransformerHandler newTransformerHandler(Templates templates)
          Get a TransformerHandler object that can process SAX ContentHandler events into a Result, based on the Templates argument.
 XMLFilter newXMLFilter(Source src)
          Create an XMLFilter that uses the given Source as the transformation instructions.
 XMLFilter newXMLFilter(Templates templates)
          Create an XMLFilter, based on the Templates argument..
 void setAttribute(String name, Object value)
          Allows the user to set specific attributes on the underlying implementation.
 void setConfiguration(Configuration config)
          Set the configuration.
 void setErrorListener(ErrorListener listener)
          Set the error event listener for the TransformerFactory, which is used for the processing of transformation instructions, and not for the transformation itself.
 void setFeature(String name, boolean value)
          Set a feature for this TransformerFactory and Transformers or Templates created by this factory.
 void setURIResolver(URIResolver resolver)
          Set an object that is used by default during the transformation to resolve URIs used in xsl:import, or xsl:include.
 
Methods inherited from class javax.xml.transform.TransformerFactory
newInstance
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TransformerFactoryImpl

public TransformerFactoryImpl()
Default constructor.


TransformerFactoryImpl

public TransformerFactoryImpl(Configuration config)
Construct a TransformerFactory using an existing Configuration.

Parameters:
config - the Saxon configuration
Method Detail

setConfiguration

public void setConfiguration(Configuration config)
Set the configuration. This can also be done using the JAXP method setAttribute, with the attribute name FeatureKeys.CONFIGURATION

Parameters:
config - the Saxon configuration

getConfiguration

public Configuration getConfiguration()
Get the configuration. This can also be done using the JAXP method getAttribute, with the attribute name FeatureKeys.CONFIGURATION

Returns:
the Saxon configuration

newTransformer

public Transformer newTransformer(Source source)
                           throws TransformerConfigurationException
Process the Source into a Transformer object. Care must be given not to use this object in multiple threads running concurrently. Different TransformerFactories can be used concurrently by different threads.

Specified by:
newTransformer in class TransformerFactory
Parameters:
source - An object that holds a URI, input stream, etc.
Returns:
A Transformer object that may be used to perform a transformation in a single thread, never null.
Throws:
TransformerConfigurationException - May throw this during the parse when it is constructing the Templates object and fails.

newTransformer

public Transformer newTransformer()
                           throws TransformerConfigurationException
Create a new Transformer object that performs a copy of the source to the result.

Specified by:
newTransformer in class TransformerFactory
Returns:
A Transformer object that may be used to perform a transformation in a single thread, never null.
Throws:
TransformerConfigurationException - May throw this during the parse when it is constructing the Templates object and fails.

newTemplates

public Templates newTemplates(Source source)
                       throws TransformerConfigurationException
Process the Source into a Templates object, which is a a compiled representation of the source. This Templates object may then be used concurrently across multiple threads. Creating a Templates object allows the TransformerFactory to do detailed performance optimization of transformation instructions, without penalizing runtime transformation.

Specified by:
newTemplates in class TransformerFactory
Parameters:
source - An object that holds a URL, input stream, etc.
Returns:
A Templates object capable of being used for transformation purposes, never null.
Throws:
TransformerConfigurationException - May throw this during the parse when it is constructing the Templates object and fails.

newTemplates

public Templates newTemplates(Source source,
                              CompilerInfo info)
                       throws TransformerConfigurationException
Process the Source into a Templates object, which is a a compiled representation of the source. This Templates object may then be used concurrently across multiple threads. Creating a Templates object allows the TransformerFactory to do detailed performance optimization of transformation instructions, without penalizing runtime transformation.

Parameters:
source - An object that holds a URL, input stream, etc.
info - compile-time options for this stylesheet compilation
Returns:
A Templates object capable of being used for transformation purposes, never null.
Throws:
TransformerConfigurationException - May throw this during the parse when it is constructing the Templates object and fails.

getAssociatedStylesheet

public Source getAssociatedStylesheet(Source source,
                                      String media,
                                      String title,
                                      String charset)
                               throws TransformerConfigurationException
Get the stylesheet specification(s) associated via the xml-stylesheet processing instruction (see http://www.w3.org/TR/xml-stylesheet/) with the document document specified in the source parameter, and that match the given criteria. Note that it is possible to return several stylesheets, in which case they are applied as if they were a list of imports or cascades.

Specified by:
getAssociatedStylesheet in class TransformerFactory
Parameters:
source - The XML source document.
media - The media attribute to be matched. May be null, in which case the prefered templates will be used (i.e. alternate = no).
title - The value of the title attribute to match. May be null.
charset - The value of the charset attribute to match. May be null.
Returns:
A Source object suitable for passing to the TransformerFactory.
Throws:
TransformerConfigurationException - if any problems occur

setURIResolver

public void setURIResolver(URIResolver resolver)
Set an object that is used by default during the transformation to resolve URIs used in xsl:import, or xsl:include.

Specified by:
setURIResolver in class TransformerFactory
Parameters:
resolver - An object that implements the URIResolver interface, or null.

getURIResolver

public URIResolver getURIResolver()
Get the object that is used by default during the transformation to resolve URIs used in document(), xsl:import, or xsl:include.

Specified by:
getURIResolver in class TransformerFactory
Returns:
The URIResolver that was set with setURIResolver.

getFeature

public boolean getFeature(String name)
Look up the value of a feature.

The feature name is any absolute URI.

Specified by:
getFeature in class TransformerFactory
Parameters:
name - The feature name, which is an absolute URI.
Returns:
The current state of the feature (true or false).

setAttribute

public void setAttribute(String name,
                         Object value)
                  throws IllegalArgumentException
Allows the user to set specific attributes on the underlying implementation. An attribute in this context is defined to be an option that the implementation provides.

Specified by:
setAttribute in class TransformerFactory
Parameters:
name - The name of the attribute. This must be one of the constants defined in class FeatureKeys.
value - The value of the attribute.
Throws:
IllegalArgumentException - thrown if Saxon doesn't recognize the attribute.
See Also:
FeatureKeys

getAttribute

public Object getAttribute(String name)
                    throws IllegalArgumentException
Allows the user to retrieve specific attributes on the underlying implementation.

Specified by:
getAttribute in class TransformerFactory
Parameters:
name - The name of the attribute. This must be one of the constants defined in class FeatureKeys.
Returns:
value The value of the attribute.
Throws:
IllegalArgumentException - thrown if the underlying implementation doesn't recognize the attribute.

setErrorListener

public void setErrorListener(ErrorListener listener)
                      throws IllegalArgumentException
Set the error event listener for the TransformerFactory, which is used for the processing of transformation instructions, and not for the transformation itself.

Specified by:
setErrorListener in class TransformerFactory
Parameters:
listener - The new error listener.
Throws:
IllegalArgumentException - if listener is null.

getErrorListener

public ErrorListener getErrorListener()
Get the error event handler for the TransformerFactory.

Specified by:
getErrorListener in class TransformerFactory
Returns:
The current error listener, which should never be null.

newTransformerHandler

public TransformerHandler newTransformerHandler(Source src)
                                         throws TransformerConfigurationException
Get a TransformerHandler object that can process SAX ContentHandler events into a Result, based on the transformation instructions specified by the argument.

Specified by:
newTransformerHandler in class SAXTransformerFactory
Parameters:
src - The Source of the transformation instructions.
Returns:
TransformerHandler ready to transform SAX events.
Throws:
TransformerConfigurationException - If for some reason the TransformerHandler can not be created.

newTransformerHandler

public TransformerHandler newTransformerHandler(Templates templates)
                                         throws TransformerConfigurationException
Get a TransformerHandler object that can process SAX ContentHandler events into a Result, based on the Templates argument.

Specified by:
newTransformerHandler in class SAXTransformerFactory
Parameters:
templates - The compiled transformation instructions.
Returns:
TransformerHandler ready to transform SAX events.
Throws:
TransformerConfigurationException - If for some reason the TransformerHandler can not be created.

newTransformerHandler

public TransformerHandler newTransformerHandler()
                                         throws TransformerConfigurationException
Get a TransformerHandler object that can process SAX ContentHandler events into a Result. The transformation is defined as an identity (or copy) transformation, for example to copy a series of SAX parse events into a DOM tree.

Specified by:
newTransformerHandler in class SAXTransformerFactory
Returns:
A non-null reference to a TransformerHandler, that may be used as a ContentHandler for SAX parse events.
Throws:
TransformerConfigurationException - If for some reason the TransformerHandler cannot be created.

newTemplatesHandler

public TemplatesHandler newTemplatesHandler()
                                     throws TransformerConfigurationException
Get a TemplatesHandler object that can process SAX ContentHandler events into a Templates object.

Specified by:
newTemplatesHandler in class SAXTransformerFactory
Returns:
A non-null reference to a TransformerHandler, that may be used as a ContentHandler for SAX parse events.
Throws:
TransformerConfigurationException - If for some reason the TemplatesHandler cannot be created.

newXMLFilter

public XMLFilter newXMLFilter(Source src)
                       throws TransformerConfigurationException
Create an XMLFilter that uses the given Source as the transformation instructions.

Specified by:
newXMLFilter in class SAXTransformerFactory
Parameters:
src - The Source of the transformation instructions.
Returns:
An XMLFilter object, or null if this feature is not supported.
Throws:
TransformerConfigurationException - If for some reason the XMLFilter cannot be created.

newXMLFilter

public XMLFilter newXMLFilter(Templates templates)
                       throws TransformerConfigurationException
Create an XMLFilter, based on the Templates argument..

Specified by:
newXMLFilter in class SAXTransformerFactory
Parameters:
templates - The compiled transformation instructions.
Returns:
An XMLFilter object, or null if this feature is not supported.
Throws:
TransformerConfigurationException - If for some reason the XMLFilter cannot be created.

setFeature

public void setFeature(String name,
                       boolean value)
                throws TransformerConfigurationException

Set a feature for this TransformerFactory and Transformers or Templates created by this factory.

Feature names are fully qualified URIs. Implementations may define their own features. An TransformerConfigurationException is thrown if this TransformerFactory or the Transformers or Templates it creates cannot support the feature. It is possible for an TransformerFactory to expose a feature value but be unable to change its state.

All implementations are required to support the FEATURE_SECURE_PROCESSING feature. When the feature is:

Specified by:
setFeature in class TransformerFactory
Parameters:
name - Feature name.
value - Is feature state true or false.
Throws:
TransformerConfigurationException - if this TransformerFactory or the Transformers or Templates it creates cannot support this feature.
NullPointerException - If the name parameter is null.


Copyright (C) Michael H. Kay. All rights reserved.