com.icl.saxon

Class TransformerFactoryImpl


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.

Constructor Summary

TransformerFactoryImpl()
Default constructor.

Method Summary

Source
compositeStylesheet(SAXSource[] sources)
Process a series of stylesheet inputs, treating them in import or cascade order.
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.
ErrorListener
getErrorListener()
Get the error event handler for the TransformerFactory.
boolean
getFeature(String name)
Look up the value of a feature.
SAXSource
getSAXSource(Source source, boolean isStyleSheet)
Convert a supplied Source to a SAXSource
XMLReader
getSourceParser()
Get the parser for source documents
XMLReader
getStyleParser()
Get the parser for stylesheet documents
URIResolver
getURIResolver()
Get the object that is used by default during the transformation to resolve URIs used in document(), xsl:import, or xsl:include.
static XMLReader
makeParser(String className)
Create a new SAX XMLReader object using the class name provided.
The named class must exist and must implement the org.xml.sax.XMLReader or Parser interface.
This method returns an instance of the parser named.
Templates
newTemplates(Source source)
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
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.

Constructor Details

TransformerFactoryImpl

public TransformerFactoryImpl()
Default constructor.

Method Details

compositeStylesheet

public Source compositeStylesheet(SAXSource[] sources)
            throws TransformerConfigurationException
Process a series of stylesheet inputs, treating them in import or cascade order. This is mainly for support of the getAssociatedStylesheets method, but may be useful for other purposes.
Parameters:
sources - An array of SAX InputSource objects.
Returns:
A Source object representing a composite stylesheet.

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.
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.

getAttribute

public Object getAttribute(String name)
            throws IllegalArgumentException
Allows the user to retrieve specific attributes on the underlying implementation.
Parameters:
name - The name of the attribute.
Returns:
value The value of the attribute.

getErrorListener

public ErrorListener getErrorListener()
Get the error event handler for the TransformerFactory.
Returns:
The current error handler, which should never be null.

getFeature

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

The feature name is any absolute URI.

Parameters:
name - The feature name, which is an absolute URI.
Returns:
The current state of the feature (true or false).

getSAXSource

public SAXSource getSAXSource(Source source,
                              boolean isStyleSheet)
Convert a supplied Source to a SAXSource
Parameters:
source - The supplied input source
isStyleSheet - true if the source is a stylesheet
Returns:
a SAXSource

getSourceParser

public XMLReader getSourceParser()
            throws TransformerFactoryConfigurationError
Get the parser for source documents

getStyleParser

public XMLReader getStyleParser()
            throws TransformerFactoryConfigurationError
Get the parser for stylesheet documents

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.
Returns:
The URIResolver that was set with setURIResolver.

makeParser

public static XMLReader makeParser(String className)
            throws TransformerFactoryConfigurationError
Create a new SAX XMLReader object using the class name provided.
The named class must exist and must implement the org.xml.sax.XMLReader or Parser interface.
This method returns an instance of the parser named.
Parameters:
className - A string containing the name of the SAX parser class, for example "com.microstar.sax.LarkDriver"
Returns:
an instance of the Parser class named, or null if it is not loadable or is not a Parser.

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.
Parameters:
source - An object that holds a URL, input stream, etc.
Returns:
A Templates object capable of being used for transformation purposes, never null.

newTemplatesHandler

public TemplatesHandler newTemplatesHandler()
            throws TransformerConfigurationException
Get a TemplatesHandler object that can process SAX ContentHandler events into a Templates object.
Returns:
A non-null reference to a TransformerHandler, that may be used as a ContentHandler for SAX parse events.

newTransformer

public Transformer newTransformer()
            throws TransformerConfigurationException
Create a new Transformer object that performs a copy of the source to the result.
Returns:
A Transformer object that may be used to perform a transformation in a single thread, never null.

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.
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.

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.
Returns:
A non-null reference to a TransformerHandler, that may be used as a ContentHandler for SAX parse events.

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.
Parameters:
src - The Source of the transformation instructions.
Returns:
TransformerHandler ready to transform SAX events.

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.
Parameters:
templates - The compiled transformation instructions.
Returns:
TransformerHandler ready to transform SAX events.

newXMLFilter

public XMLFilter newXMLFilter(Source src)
            throws TransformerConfigurationException
Create an XMLFilter that uses the given Source as the transformation instructions.
Parameters:
src - The Source of the transformation instructions.
Returns:
An XMLFilter object, or null if this feature is not supported.

newXMLFilter

public XMLFilter newXMLFilter(Templates templates)
            throws TransformerConfigurationException
Create an XMLFilter, based on the Templates argument..
Parameters:
templates - The compiled transformation instructions.
Returns:
An XMLFilter object, or null if this feature is not supported.

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.
Parameters:
name - The name of the attribute. This must be one of the constants defined in class FeatureKeys.
value - The value of 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.
Parameters:
listener - The new error listener.

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 java.net.URIs. Implementations may define their own features. An javax.xml.transform.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 javax.xml.XMLConstants.FEATURE_SECURE_PROCESSING feature. When the feature is:

  • true: the implementation will limit XML processing to conform to implementation limits and behave in a secure fashion as defined by the implementation. Examples include resolving user defined style sheets and functions. If XML processing is limited for security reasons, it will be reported via a call to the registered javax.xml.transform.ErrorListener.fatalError(javax.xml.transform.TransformerException exception). See setErrorListener(javax.xml.transform.ErrorListener listener).
  • false: the implementation will processing XML according to the XML specifications without regard to possible implementation limits.

The Saxon implementation does not support the secure processing feature.

Parameters:
name - Feature name.
value - Is feature state true or false.

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.
Parameters:
resolver - An object that implements the URIResolver interface, or null.