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Oracle® Database XML Java API Reference
12c Release 1 (12.1)

E15981-09


oracle.xml.jaxp
Class JXTransformer

java.lang.Object
  extended by javax.xml.transform.Transformer
      extended by oracle.xml.jaxp.JXTransformer


public class JXTransformer
extends Transformer

An instance of this class transforms a Source into a Result.

An instance of this class can be obtained with the TransformerFactory.newTransformer method. This instance may then be used to process XML from a variety of sources and write the transformation output to a variety of sinks.

An object of this class may not be used in multiple threads running concurrently. Different Transformers may be used concurrently by different threads.

A Transformer may be used multiple times. Parameters and output properties are preserved across transformations.


Constructor Summary
JXTransformer()
          Default constructor
JXTransformer(XSLStylesheet templates)
          Constructor is based on

 

Method Summary
 void clearParameters()
          Clear all parameters set with setParameter.
 ErrorListener getErrorListener()
          Get the error event handler in effect for the transformation.
 java.util.Properties getOutputProperties()
          Get a copy of the output properties for the transformation.
 java.lang.String getOutputProperty(java.lang.String name)
          Get an output property that is in effect for the transformation.
 java.lang.Object getParameter(java.lang.String name)
          Get a parameter that was explicitly set with setParameter or setParameters.
 URIResolver getURIResolver()
          Get an object that will be used to resolve URIs used in document(), etc.
 void setErrorListener(ErrorListener listener)
          Set the error event listener in effect for the transformation.
 void setGenerate_Output_Escaping_PIs(boolean bool)
          By default, When Oracle JAXP XSLT transformer transforms an XML into a Result, it does not generate Result.PI_DISABLE_OUTPUT_ESCAPING and Result.PI_ENABLE_OUTPUT_ESCAPING PIs based on the stylesheet.
 void setOutputProperties(java.util.Properties oformat)
          Set the output properties for the transformation.
 void setOutputProperty(java.lang.String name, java.lang.String value)
          Set an output property that will be in effect for the transformation.
 void setParameter(java.lang.String name, java.lang.Object value)
          Add a parameter for the transformation.
 void setURIResolver(URIResolver resolver)
          Set an object that will be used to resolve URIs used in document().
 void transform(Source source, Result result)
          Process the source tree to the output result.

 

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

JXTransformer

public JXTransformer()
Default constructor

JXTransformer

public JXTransformer(XSLStylesheet templates)
Constructor is based on
Parameters:
templates - a XSLStylesheet or Templates

Method Detail

setGenerate_Output_Escaping_PIs

public void setGenerate_Output_Escaping_PIs(boolean bool)
By default, When Oracle JAXP XSLT transformer transforms an XML into a Result, it does not generate Result.PI_DISABLE_OUTPUT_ESCAPING and Result.PI_ENABLE_OUTPUT_ESCAPING PIs based on the stylesheet. If user does want to include these two PIs in his/her output Result, s/he can enable it by calling setGenerate_Output_Escaping_PIs(true);
Parameters:
bool - : false if disable generating the PIs (default) true if enable generating the PIs

transform

public void transform(Source source,
                      Result result)
               throws TransformerException
Process the source tree to the output result.
Specified by:
transform in class Transformer
Parameters:
xmlSource - The input for the source tree.
outputTarget - The output target.
Throws:
TransformerException - If an unrecoverable error occurs during the course of the transformation.

setParameter

public void setParameter(java.lang.String name,
                         java.lang.Object value)
Add a parameter for the transformation.

Pass a qualified name as a two-part string, the namespace URI enclosed in curly braces ({}), followed by the local name. If the name has a null URL, the String only contain the local name. An application can safely check for a non-null URI by testing to see if the first character of the name is a '{' character.

For example, if a URI and local name were obtained from an element defined with <xyz:foo xmlns:xyz="http://xyz.foo.com/yada/baz.html"/>, then the qualified name would be "{http://xyz.foo.com/yada/baz.html}foo". Note that no prefix is used.

Specified by:
setParameter in class Transformer
Parameters:
name - Name of the parameter, which may begin with a namespace URI in curly braces ({}).
value - The value object. This can be any valid Java object. It is up to the processor to provide the proper object coersion or to simply pass the object on for use in an extension.

getParameter

public java.lang.Object getParameter(java.lang.String name)
Get a parameter that was explicitly set with setParameter or setParameters.
Specified by:
getParameter in class Transformer
Parameters:
name - A parameter name

This method does not return a default parameter value, which cannot be determined until the node context is evaluated during the transformation process.

Returns:
A parameter that has been set with setParameter, or null if a parameter with the given name was not found.

clearParameters

public void clearParameters()
Clear all parameters set with setParameter.
Specified by:
clearParameters in class Transformer

setURIResolver

public void setURIResolver(URIResolver resolver)
Set an object that will be used to resolve URIs used in document(). currently, we do not support URIResolver in document() fuction

If the resolver argument is null, the URIResolver value will be cleared, and the default behavior will be used.

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

getURIResolver

public URIResolver getURIResolver()
Get an object that will be used to resolve URIs used in document(), etc.
Specified by:
getURIResolver in class Transformer
Returns:
An object that implements the URIResolver interface, or null.

setOutputProperties

public void setOutputProperties(java.util.Properties oformat)
Set the output properties for the transformation. These properties will override properties set in the Templates with <xsl:output>.

If argument to this function is null, any properties previously set are removed, and the value will revert to the value defined in the templates object.

Pass a qualified property key name as a two-part string, the namespace URI enclosed in curly braces ({}), followed by the local name. If the name has a null URL, the String only contain the local name. An application can safely check for a non-null URI by testing to see if the first character of the name is a '{' character.

For ex, if a URI and local name were obtained from an element defined with <xyz:foo xmlns:xyz="http://xyz.foo.com/yada/baz.html"/>, then the qualified name would be "{http://xyz.foo.com/yada/baz.html}foo". Note that no prefix is used.

Specified by:
setOutputProperties in class Transformer
Parameters:
oformat - A set of output properties that will be used to override any of the same properties in affect for the transformation.
Throws:
java.lang.IllegalArgumentException - if any of the argument keys are not recognized and are not namespace qualified.
See Also:
OutputKeys, Properties

getOutputProperties

public java.util.Properties getOutputProperties()
Get a copy of the output properties for the transformation.

The properties returned should contain properties set by the user, and properties set by the stylesheet, and these properties are "defaulted" by default properties specified by section 16 of the XSL Transformations (XSLT) W3C Recommendation. The properties that were specifically set by the user or the stylesheet should be in the base Properties list, while the XSLT default properties that were not specifically set should be the default Properties list. Thus, getOutputProperties().getProperty(String key) will obtain any property in that was set by setOutputProperty(java.lang.String, java.lang.String), setOutputProperties(java.util.Properties), in the stylesheet, or the default properties, while getOutputProperties().get(String key) will only retrieve properties that were explicitly set by setOutputProperty(java.lang.String, java.lang.String), setOutputProperties(java.util.Properties), or in the stylesheet.

Note that mutation of the Properties object returned will not effect the properties that the transformation contains.

If any of the argument keys are not recognized and are not namespace qualified, the property will be ignored. In other words the behaviour is not orthogonal with setOutputProperties.

Specified by:
getOutputProperties in class Transformer
Returns:
A copy of the set of output properties in effect for the next transformation.
See Also:
OutputKeys, Properties

setOutputProperty

public void setOutputProperty(java.lang.String name,
                              java.lang.String value)
Set an output property that will be in effect for the transformation.

Pass a qualified property name as a two-part string, the namespace URI enclosed in curly braces ({}), followed by the local name. If the name has a null URL, the String only contain the local name. An application can safely check for a non-null URI by testing to see if the first character of the name is a '{' character.

For ex, if a URI and local name were obtained from an element defined with <xyz:foo xmlns:xyz="http://xyz.foo.com/yada/baz.html"/>, then the qualified name would be "{http://xyz.foo.com/yada/baz.html}foo". Note that no prefix is used.

The Properties object that was passed to setOutputProperties(java.util.Properties) won't be effected by calling this method.

Specified by:
setOutputProperty in class Transformer
Parameters:
name - A non-null String that specifies an output property name, which may be namespace qualified.
value - The non-null string value of the output property.
Throws:
java.lang.IllegalArgumentException - If the property is not supported, and is not qualified with a namespace.
See Also:
OutputKeys

getOutputProperty

public java.lang.String getOutputProperty(java.lang.String name)
Get an output property that is in effect for the transformation. The property specified may be a property that was set with setOutputProperty, or it may be a property specified in the stylesheet.
Specified by:
getOutputProperty in class Transformer
Parameters:
name - A non-null String that specifies an output property name, which may be namespace qualified.
Returns:
The string value of the output property, or null if no property was found.
Throws:
java.lang.IllegalArgumentException - If the property is not supported.
See Also:
OutputKeys

setErrorListener

public void setErrorListener(ErrorListener listener)
Set the error event listener in effect for the transformation.
Specified by:
setErrorListener in class Transformer
Parameters:
listener - The new error listener.
Throws:
java.lang.IllegalArgumentException - if listener is null.

getErrorListener

public ErrorListener getErrorListener()
Get the error event handler in effect for the transformation.
Specified by:
getErrorListener in class Transformer
Returns:
The current error handler, which should never be null.

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Oracle® Database XML Java API Reference
12c Release 1 (12.1)

E15981-09


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