net.sf.saxon.jaxp

Class SaxonTransformerFactory

java.lang.Object

javax.xml.transform.TransformerFactory

javax.xml.transform.sax.SAXTransformerFactory

net.sf.saxon.jaxp.SaxonTransformerFactory

Direct Known Subclasses:

TransformerFactoryImpl

public class SaxonTransformerFactory
extends SAXTransformerFactory

A SaxonTransformerFactory 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.

In Saxon 9.6, the JAXP transformation interface is re-implemented as a layer on top of the s9api interface. This will affect applications that attempt to down-cast from JAXP interfaces to the underlying implementation classes.

Field Summary

Fields inherited from class javax.xml.transform.sax.SAXTransformerFactory

FEATURE, FEATURE_XMLFILTER

Constructor Summary

Constructors

Constructor and Description
SaxonTransformerFactory() Default constructor.
SaxonTransformerFactory(Configuration config) Construct a TransformerFactory using an existing Configuration.

Method Summary

Methods

Modifier and Type	Method and Description
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, newInstance

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SaxonTransformerFactory

public SaxonTransformerFactory()

Default constructor.

SaxonTransformerFactory

public SaxonTransformerFactory(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. The Transformer object must not be used 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. of the stylesheet used to perform the transformation.

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). Note that Saxon does not implement the complex CSS3-based syntax for media queries. By default, the media value is simply ignored. An algorithm for comparing the requested media with the declared media can be defined using the method Configuration.setMediaQueryEvaluator(Comparator).

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.

This method is defined in JAXP but its use with Saxon is deprecated, because the errorListener will be shared by all stylesheet compilations running under this factory, which may be operating concurrently in different threads.

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:

• 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 ErrorListener.fatalError(javax.xml.transform.TransformerException exception). See setErrorListener(javax.xml.transform.ErrorListener listener). In the Saxon implementation, this option causes calls on extension functions and extensions instructions to be disabled, and also disables the use of xsl:result-document to write to secondary output destinations.
• false: the implementation will processing XML according to the XML specifications without regard to possible implementation limits.

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.