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java.lang.Object javax.xml.transform.TransformerFactory
public abstract class TransformerFactory
A TransformerFactory instance can be used to create
Transformer
and
Templates
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.
Method Summary | |
---|---|
abstract Source |
getAssociatedStylesheet(Source source,
java.lang.String media,
java.lang.String title,
java.lang.String charset)
Get the stylesheet specification(s) associated with the XML Source document via the
xml-stylesheet processing instruction that match the given criteria. |
abstract java.lang.Object |
getAttribute(java.lang.String name)
Allows the user to retrieve specific attributes on the underlying implementation. |
abstract ErrorListener |
getErrorListener()
Get the error event handler for the TransformerFactory. |
abstract boolean |
getFeature(java.lang.String name)
Look up the value of a feature. |
abstract 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 TransformerFactory |
newInstance()
Obtain a new instance of a TransformerFactory . |
abstract Templates |
newTemplates(Source source)
Process the Source into a Templates object, which is a a compiled representation of the source. |
abstract Transformer |
newTransformer()
Create a new Transformer that performs a copy
of the Source to the Result . |
abstract Transformer |
newTransformer(Source source)
Process the Source into a Transformer
Object . |
abstract void |
setAttribute(java.lang.String name,
java.lang.Object value)
Allows the user to set specific attributes on the underlying implementation. |
abstract 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. |
abstract void |
setFeature(java.lang.String name,
boolean value)
Set a feature for this TransformerFactory and Transformer s
or Template s created by this factory. |
abstract void |
setURIResolver(URIResolver resolver)
Set an object that is used by default during the transformation to resolve URIs used in document(), xsl:import, or xsl:include. |
Methods inherited from class java.lang.Object |
---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
---|
public static TransformerFactory newInstance() throws TransformerFactoryConfigurationError
TransformerFactory
.
This static method creates a new factory instance
This method uses the following ordered lookup procedure to determine
the TransformerFactory
implementation class to
load:
javax.xml.transform.TransformerFactory
system
property.
java.util.Properties
format and contains the fully qualified name of the
implementation class with the key being the system property defined
above.
The jaxp.properties file is read only once by the JAXP implementation
and it's values are then cached for future use. If the file does not exist
when the first attempt is made to read from it, no further attempts are
made to check for its existence. It is not possible to change the value
of any property in jaxp.properties after it has been read for the first time.
META-INF/services/javax.xml.transform.TransformerFactory
in jars available to the runtime.
TransformerFactory
instance.
TransformerFactory
it can use the factory to configure
and obtain parser instances.
TransformerFactoryConfigurationError
- Thrown if the implementation
is not available or cannot be instantiated.public abstract Transformer newTransformer(Source source) throws TransformerConfigurationException
Process the Source
into a Transformer
Object
. The Source
is an XSLT document that
conforms to
XSL Transformations (XSLT) Version 1.0. Care must
be taken not to use this Transformer
in multiple
Thread
s running concurrently.
Different TransformerFactories
can be used concurrently by
different Thread
s.
source
- Source
of XSLT document used to create
Transformer
.
Examples of XML Source
s include
DOMSource
,
SAXSource
, and
StreamSource
.
Transformer
object that may be used to perform
a transformation in a single Thread
, never
null
.
TransformerConfigurationException
- Thrown if there are errors when
parsing the Source
or it is not possible to create a
Transformer
instance.public abstract Transformer newTransformer() throws TransformerConfigurationException
Create a new Transformer
that performs a copy
of the Source
to the Result
.
i.e. the "identity transform".
TransformerConfigurationException
- Thrown if it is not
possible to create a Transformer
instance.public abstract Templates newTemplates(Source source) throws TransformerConfigurationException
source
- An object that holds a URL, input stream, etc.
TransformerConfigurationException
- May throw this during the
parse when it is constructing the Templates object and fails.public abstract Source getAssociatedStylesheet(Source source, java.lang.String media, java.lang.String title, java.lang.String charset) throws TransformerConfigurationException
Get the stylesheet specification(s) associated with the
XML Source
document via the
xml-stylesheet processing instruction 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 in a
single stylesheet.
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.
Source
Object
suitable for passing
to the TransformerFactory
.
TransformerConfigurationException
- An Exception
is thrown if an error occurings during parsing of the
source
.public abstract void setURIResolver(URIResolver resolver)
resolver
- An object that implements the URIResolver interface,
or null.public abstract URIResolver getURIResolver()
public abstract void setFeature(java.lang.String name, boolean value) throws TransformerConfigurationException
Set a feature for this TransformerFactory
and Transformer
s
or Template
s created by this factory.
Feature names are fully qualified URI
s.
Implementations may define their own features.
An TransformerConfigurationException
is thrown if this TransformerFactory
or the
Transformer
s or Template
s 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 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
ErrorListener.fatalError(TransformerException exception)
.
See setErrorListener(ErrorListener listener)
.
false
: the implementation will processing XML according to the XML specifications without
regard to possible implementation limits.
name
- Feature name.value
- Is feature state true
or false
.
TransformerConfigurationException
- if this TransformerFactory
or the Transformer
s or Template
s it creates cannot support this feature.
java.lang.NullPointerException
- If the name
parameter is null.public abstract boolean getFeature(java.lang.String name)
Feature names are fully qualified URI
s.
Implementations may define their own features.
false
is returned if this TransformerFactory
or the
Transformer
s or Template
s it creates cannot support the feature.
It is possible for an TransformerFactory
to expose a feature value but be unable to change its state.
name
- Feature name.
true
or false
.
java.lang.NullPointerException
- If the name
parameter is null.public abstract void setAttribute(java.lang.String name, java.lang.Object value)
IllegalArgumentException
is thrown if the underlying
implementation doesn't recognize the attribute.
name
- The name of the attribute.value
- The value of the attribute.public abstract java.lang.Object getAttribute(java.lang.String name)
IllegalArgumentException
is thrown if the underlying
implementation doesn't recognize the attribute.
name
- The name of the attribute.
public abstract void setErrorListener(ErrorListener listener)
IllegalArgumentException
is thrown if the
ErrorListener
listener is null
.
listener
- The new error listener.public abstract ErrorListener getErrorListener()
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