org.apache.xalan.transformer
Class TransformerImpl

java.lang.Object
  |
  +--javax.xml.transform.Transformer
        |
        +--org.apache.xalan.transformer.TransformerImpl

public class TransformerImpl
extends Transformer
implements java.lang.Runnable, DTMWSFilter, ExtensionsProvider, SerializerTrace

This class implements the Transformer interface, and is the core representation of the transformation execution.

Usage:
**For advanced use only**

Constructor Summary
TransformerImpl(StylesheetRoot stylesheet)
          Construct a TransformerImpl.
 
Method Summary
 boolean applyTemplateToNode(ElemTemplateElement xslInstruction, ElemTemplate template, int child)
          Given an element and mode, find the corresponding template and process the contents.
 void clearParameters()
          Reset the parameters to a null list.
 SerializationHandler createSerializationHandler(Result outputTarget)
          Create a result ContentHandler from a Result object, based on the current OutputProperties.
 SerializationHandler createSerializationHandler(Result outputTarget, OutputProperties format)
          Create a ContentHandler from a Result object and an OutputProperties.
 boolean currentFuncResultSeen()
          Determines whether an EXSLT func:result instruction has been executed for the currently active EXSLT func:function.
 boolean currentTemplateRuleIsNull()
          Tell if the current template rule is null, i.e.
 boolean elementAvailable(java.lang.String ns, java.lang.String elemName)
           
 void executeChildTemplates(ElemTemplateElement elem, boolean shouldAddAttrs)
          Execute each of the children of a template element.
 void executeChildTemplates(ElemTemplateElement elem, ContentHandler handler)
          Execute each of the children of a template element.
 void executeChildTemplates(ElemTemplateElement elem, Node context, QName mode, ContentHandler handler)
          Execute each of the children of a template element.
 void executeFromSnapshot(TransformSnapshot ts)
          Deprecated. This is an internal tooling API that nobody seems to be using
 java.lang.Object extFunction(FuncExtFunction extFunction, java.util.Vector argVec)
           
 java.lang.Object extFunction(java.lang.String ns, java.lang.String funcName, java.util.Vector argVec, java.lang.Object methodKey)
           
 void fireGenerateEvent(int eventType)
          Fire off startDocument, endDocument events.
 void fireGenerateEvent(int eventType, char[] ch, int start, int length)
          Fire off characters, cdate events.
 void fireGenerateEvent(int eventType, java.lang.String data)
          Fire off comment and entity ref events.
 void fireGenerateEvent(int eventType, java.lang.String name, Attributes atts)
          Fire off startElement, endElement events.
 void fireGenerateEvent(int eventType, java.lang.String name, java.lang.String data)
          Fire off processingInstruction events.
 boolean functionAvailable(java.lang.String ns, java.lang.String funcName)
           
 java.lang.String getBaseURLOfSource()
          Get the base URL of the source.
 ContentHandler getContentHandler()
          Get the content event handler.
 DTMIterator getContextNodeList()
          Get the current context node list.
 CountersTable getCountersTable()
          Get the table of counters, for optimized xsl:number support.
 ElemTemplateElement getCurrentElement()
          Retrieves the current ElemTemplateElement that is being executed.
 int getCurrentNode()
          This method retrieves the current context node in the source tree.
 ElemTemplate getCurrentTemplate()
          This method retrieves the xsl:template that is in effect, which may be a matched template or a named template.
 ObjectStack getCurrentTemplateElements()
          Get the count of how many elements are active.
 int getCurrentTemplateElementsCount()
          Get the count of how many elements are active.
 boolean getDebug()
           
 java.util.Vector getElementCallstack()
          Get the stack of ElemTemplateElements.
 ErrorListener getErrorListener()
          Get the current error event handler.
 java.lang.Exception getExceptionThrown()
          Get the exception thrown by the secondary thread (normally the transform thread).
 ExtensionsTable getExtensionsTable()
          Get the extensions table object.
 boolean getFeature(java.lang.String name)
          Look up the value of a feature.
 boolean getIncremental()
           
 ContentHandler getInputContentHandler()
          Get a SAX2 ContentHandler for the input.
 ContentHandler getInputContentHandler(boolean doDocFrag)
          Get a SAX2 ContentHandler for the input.
 DeclHandler getInputDeclHandler()
          Get a SAX2 DeclHandler for the input.
 LexicalHandler getInputLexicalHandler()
          Get a SAX2 LexicalHandler for the input.
 KeyManager getKeyManager()
          Get the KeyManager object.
 int getMatchedNode()
          Retrieves the node in the source tree that matched the template obtained via getMatchedTemplate().
 ElemTemplate getMatchedTemplate()
          This method retrieves the xsl:template that was matched.
 QName getMode()
          NEEDSDOC Method getMode NEEDSDOC (getMode) @return
 MsgMgr getMsgMgr()
          Return the message manager.
 boolean getOptimize()
           
 OutputProperties getOutputFormat()
          Get the output properties used for the transformation.
 java.util.Properties getOutputProperties()
          Get a copy of the output properties for the transformation.
 java.lang.String getOutputProperty(java.lang.String qnameString)
          Get an output property that is in effect for the transformation.
 java.lang.String getOutputPropertyNoDefault(java.lang.String qnameString)
          Get the value of a property, without using the default properties.
 Result getOutputTarget()
          Get the original output target.
 java.lang.Object getParameter(java.lang.String name)
          Get a parameter that was explicitly set with setParameter or setParameters.
 boolean getProperty(java.lang.String property)
          getProperty returns the current setting of the property described by the property argument.
 boolean getQuietConflictWarnings()
          Get quietConflictWarnings property.
 int getRecursionLimit()
          Get the recursion limit.
 SerializationHandler getResultTreeHandler()
          Get the SerializationHandler object.
 SerializationHandler getSerializationHandler()
          Get the SerializationHandler object.
 short getShouldStripSpace(int elementHandle, DTM dtm)
          Test whether whitespace-only text nodes are visible in the logical view of DTM.
 TransformSnapshot getSnapshot()
          Deprecated. This is an internal tooling API that nobody seems to be using
 boolean getSource_location()
           
 StackGuard getStackGuard()
          Get the object used to guard the stack from recursion.
 ObjectPool getStringWriterPool()
          Get the StringWriter pool, so that StringWriter objects may be reused.
 StylesheetRoot getStylesheet()
          Get the current stylesheet for this processor.
 java.util.Vector getTemplateCallstack()
          Get the call stack of xsl:template elements.
 TraceManager getTraceManager()
          Get an instance of the trace manager for this transformation.
 Transformer getTransformer()
          Get the TrAX Transformer object in effect.
 java.lang.Thread getTransformThread()
          Get the thread that the transform process is on.
 URIResolver getURIResolver()
          Get an object that will be used to resolve URIs used in document(), etc.
 XPathContext getXPathContext()
          Get the XPath context associated with this transformer.
 boolean hasTraceListeners()
           
 boolean hasTransformThreadErrorCatcher()
          Return true if the transform was initiated from the transform method, otherwise it was probably done from a pure parse events.
 void init(ToXMLSAXHandler h, Transformer transformer, ContentHandler realHandler)
          Initializer method.
 boolean isParserEventsOnMain()
          Get true if the parser events should be on the main thread, false if not.
 boolean isRecursiveAttrSet(ElemAttributeSet attrSet)
          Check to see if this is a recursive attribute definition.
 boolean isTransformDone()
          Tell if the transform method is completed.
 java.lang.Object popCurrentFuncResult()
          Pops the result of the currently active EXSLT func:function.
 void popCurrentMatched()
          Pop the elements that were pushed via pushPairCurrentMatched.
 void popCurrentTemplateRuleIsNull()
          Push true if the current template rule is null, false otherwise.
 void popElemAttributeSet()
          Pop the current executing attribute set.
 void popElemTemplateElement()
          Pop the current template element.
 void popMode()
          NEEDSDOC Method popMode
 java.util.Vector processSortKeys(ElemForEach foreach, int sourceNodeContext)
          Get the keys for the xsl:sort elements.
 void pushCurrentFuncResult(java.lang.Object val)
          Push a funcion result for the currently active EXSLT func:function.
 void pushCurrentTemplateRuleIsNull(boolean b)
          Push true if the current template rule is null, false otherwise.
 void pushElemAttributeSet(ElemAttributeSet attrSet)
          Push an executing attribute set, so we can check for recursive attribute definitions.
 void pushElemTemplateElement(ElemTemplateElement elem)
          Push the current template element.
 void pushMode(QName mode)
          NEEDSDOC Method pushMode NEEDSDOC @param mode
 void pushPairCurrentMatched(ElemTemplateElement template, int child)
          Push both the current xsl:template or xsl:for-each onto the stack, along with the child node that was matched.
 void reset()
          Reset the state.
 void resetToStylesheet(TransformSnapshot ts)
          Deprecated. This is an internal tooling API that nobody seems to be using
 void run()
          Run the transform thread.
 void runTransformThread()
          Called by this.transform() if isParserEventsOnMain()==false.
 void runTransformThread(int priority)
          Called by SourceTreeHandler to start the transformation in a separate thread NEEDSDOC @param priority
static void runTransformThread(java.lang.Runnable runnable)
          Called by CoRoutineSAXParser.
 void setBaseURLOfSource(java.lang.String base)
          Get the base URL of the source.
 void setContentHandler(ContentHandler handler)
          Set the content event handler.
 void setCurrentElement(ElemTemplateElement e)
          Set the top of the current template elements stack.
 void setDebug(boolean b)
           
 void setErrorListener(ErrorListener listener)
          Set the error event listener.
 void setExceptionThrown(java.lang.Exception e)
          Set the exception thrown by the secondary thread (normally the transform thread).
 void setIsTransformDone(boolean done)
          Set if the transform method is completed.
 void setOutputFormat(OutputProperties oformat)
          Set the output properties for the transformation.
 void setOutputProperties(java.util.Properties oformat)
          Set the output properties for the transformation.
 void setOutputProperty(java.lang.String name, java.lang.String value)
          This method is used to set or override the value of the effective xsl:output attribute values specified in the stylesheet.
 void setOutputTarget(Result outputTarget)
          Set the original output target.
 void setParameter(java.lang.String name, java.lang.Object value)
          Set a parameter for the transformation.
 void setParameter(java.lang.String name, java.lang.String namespace, java.lang.Object value)
          Set a parameter for the templates.
 void setParameters(java.util.Properties params)
          Set a bag of parameters for the transformation.
 void setProperty(java.lang.String property, java.lang.Object value)
          Set a runtime property for this TransformerImpl.
 void setQuietConflictWarnings(boolean b)
          If the quietConflictWarnings property is set to true, warnings about pattern conflicts won't be printed to the diagnostics stream.
 void setRecursionLimit(int limit)
          Set the recursion limit.
 void setSerializationHandler(SerializationHandler xoh)
           
 void setShouldReset(boolean shouldReset)
          NEEDSDOC Method setShouldReset NEEDSDOC @param shouldReset
 void setSourceTreeDocForThread(int doc)
          This is just a way to set the document for run().
 void setStylesheet(StylesheetRoot stylesheetRoot)
          Set the stylesheet for this processor.
 void setTransformThread(java.lang.Thread t)
          Get the thread that the transform process is on.
 void setURIResolver(URIResolver resolver)
          Set an object that will be used to resolve URIs used in document(), etc.
 void setXMLSource(Source source)
          Set the input source for the source tree, which is needed if the parse thread is not the main thread, in order for the parse thread's run method to get to the input source.
 void setXPathContext(XPathContext xcontext)
          Set the execution context for XPath.
 void stopTransformation()
          NEEDSDOC Method stopTransformation
 void transform(Source source)
          Process the source tree to SAX parse events.
 void transform(Source source, boolean shouldRelease)
          Process the source tree to SAX parse events.
 void transform(Source xmlSource, Result outputTarget)
          Process the source tree to the output result.
 void transform(Source xmlSource, Result outputTarget, boolean shouldRelease)
          Process the source tree to the output result.
 void transformNode(int node)
          Process the source node to the output result, if the processor supports the "http://xml.org/trax/features/dom/input" feature.
 void transformNode(int node, Result outputTarget)
          Process the source node to the output result, if the processor supports the "http://xml.org/trax/features/dom/input" feature.
 int transformToGlobalRTF(ElemTemplateElement templateParent)
          Given a stylesheet element, create a result tree fragment from it's contents.
 int transformToRTF(ElemTemplateElement templateParent)
          Given a stylesheet element, create a result tree fragment from it's contents.
 java.lang.String transformToString(ElemTemplateElement elem)
          Take the contents of a template element, process it, and convert it to a string.
 void waitTransformThread()
          Used by SourceTreeHandler to wait until the transform completes
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TransformerImpl

public TransformerImpl(StylesheetRoot stylesheet)
Construct a TransformerImpl.
Parameters:
stylesheet - The root of the stylesheet tree.
Method Detail

setShouldReset

public void setShouldReset(boolean shouldReset)
NEEDSDOC Method setShouldReset NEEDSDOC @param shouldReset

getExtensionsTable

public ExtensionsTable getExtensionsTable()
Get the extensions table object.
Returns:
The extensions table.

functionAvailable

public boolean functionAvailable(java.lang.String ns,
                                 java.lang.String funcName)
                          throws TransformerException
Specified by:
functionAvailable in interface ExtensionsProvider

elementAvailable

public boolean elementAvailable(java.lang.String ns,
                                java.lang.String elemName)
                         throws TransformerException
Specified by:
elementAvailable in interface ExtensionsProvider

extFunction

public java.lang.Object extFunction(java.lang.String ns,
                                    java.lang.String funcName,
                                    java.util.Vector argVec,
                                    java.lang.Object methodKey)
                             throws TransformerException
Specified by:
extFunction in interface ExtensionsProvider

extFunction

public java.lang.Object extFunction(FuncExtFunction extFunction,
                                    java.util.Vector argVec)
                             throws TransformerException
Specified by:
extFunction in interface ExtensionsProvider

reset

public void reset()
Reset the state. This needs to be called after a process() call is invoked, if the processor is to be used again.
Overrides:
reset in class Transformer

getProperty

public boolean getProperty(java.lang.String property)
getProperty returns the current setting of the property described by the property argument. %REVIEW% Obsolete now that source_location is handled in the TransformerFactory?
Parameters:
property - a String value
Returns:
a boolean value

setProperty

public void setProperty(java.lang.String property,
                        java.lang.Object value)
Set a runtime property for this TransformerImpl. %REVIEW% Obsolete now that source_location is handled in the TransformerFactory?
Parameters:
property - a String value
value - an Object value

isParserEventsOnMain

public boolean isParserEventsOnMain()
Get true if the parser events should be on the main thread, false if not. Experimental. Can not be set right now.
Returns:
true if the parser events should be on the main thread, false if not.
Usage:
**Experimental**

getTransformThread

public java.lang.Thread getTransformThread()
Get the thread that the transform process is on.
Returns:
The thread that the transform process is on, or null.
Usage:
**For internal use only**

setTransformThread

public void setTransformThread(java.lang.Thread t)
Get the thread that the transform process is on.
Parameters:
t - The transform thread, may be null.
Usage:
**For internal use only**

hasTransformThreadErrorCatcher

public boolean hasTransformThreadErrorCatcher()
Return true if the transform was initiated from the transform method, otherwise it was probably done from a pure parse events. NEEDSDOC ($objectName$) @return

transform

public void transform(Source source)
               throws TransformerException
Process the source tree to SAX parse events.
Parameters:
source - The input for the source tree.
Throws:
TransformerException -  

transform

public void transform(Source source,
                      boolean shouldRelease)
               throws TransformerException
Process the source tree to SAX parse events.
Parameters:
source - The input for the source tree.
shouldRelease - Flag indicating whether to release DTMManager.
Throws:
TransformerException -  

getBaseURLOfSource

public java.lang.String getBaseURLOfSource()
Get the base URL of the source.
Returns:
The base URL of the source tree, or null.

setBaseURLOfSource

public void setBaseURLOfSource(java.lang.String base)
Get the base URL of the source. NEEDSDOC @param base
Returns:
The base URL of the source tree, or null.

getOutputTarget

public Result getOutputTarget()
Get the original output target.
Returns:
The Result object used to kick of the transform or null.

setOutputTarget

public void setOutputTarget(Result outputTarget)
Set the original output target. This is useful when using a SAX transform and supplying a ContentHandler or when the URI of the output target should not be the same as the systemID of the original output target. NEEDSDOC @param outputTarget

getOutputProperty

public java.lang.String getOutputProperty(java.lang.String qnameString)
                                   throws java.lang.IllegalArgumentException
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. NEEDSDOC @param qnameString
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.
Overrides:
getOutputProperty in class Transformer
See Also:
OutputKeys

getOutputPropertyNoDefault

public java.lang.String getOutputPropertyNoDefault(java.lang.String qnameString)
                                            throws java.lang.IllegalArgumentException
Get the value of a property, without using the default properties. This can be used to test if a property has been explicitly set by the stylesheet or user. NEEDSDOC @param qnameString
Returns:
The value of the property, or null if not found.
Throws:
java.lang.IllegalArgumentException - If the property is not supported, and is not namespaced.

setOutputProperty

public void setOutputProperty(java.lang.String name,
                              java.lang.String value)
                       throws java.lang.IllegalArgumentException
This method is used to set or override the value of the effective xsl:output attribute values specified in the stylesheet.

The recognized standard output properties are:

For example:

   tran.setOutputProperty("standalone", "yes");
 

In the case of the cdata-section-elements property, the value should be a whitespace separated list of element names. The element name is the local name of the element, if it is in no namespace, or, the URI in braces followed immediately by the local name if the element is in that namespace. For example:

 tran.setOutputProperty(
   "cdata-section-elements", 
   "elem1 {http://example.uri}elem2 elem3");
 

The recognized Xalan extension elements are:

These must be in the extension namespace of "http://xml.apache.org/xalan". This is accomplished by putting the namespace URI in braces before the property name, for example:

   tran.setOutputProperty(
     "{http://xml.apache.org/xalan}line-separator" ,
     "\n");
 
Parameters:
name - The property name.
value - The requested value for the property.
Throws:
java.lang.IllegalArgumentException - if the property name is not legal.
Overrides:
setOutputProperty in class Transformer

setOutputProperties

public void setOutputProperties(java.util.Properties oformat)
                         throws java.lang.IllegalArgumentException
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 will be removed.

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

getOutputProperties

public java.util.Properties getOutputProperties()
Get a copy of the output properties for the transformation. These properties will override properties set in the templates with xsl:output.

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

Returns:
A copy of the set of output properties in effect for the next transformation. NEEDSDOC ($objectName$) @return
Overrides:
getOutputProperties in class Transformer

createSerializationHandler

public SerializationHandler createSerializationHandler(Result outputTarget)
                                                throws TransformerException
Create a result ContentHandler from a Result object, based on the current OutputProperties.
Parameters:
outputTarget - Where the transform result should go, should not be null.
Returns:
A valid ContentHandler that will create the result tree when it is fed SAX events.
Throws:
TransformerException -  

createSerializationHandler

public SerializationHandler createSerializationHandler(Result outputTarget,
                                                       OutputProperties format)
                                                throws TransformerException
Create a ContentHandler from a Result object and an OutputProperties.
Parameters:
outputTarget - Where the transform result should go, should not be null.
format - The OutputProperties object that will contain instructions on how to serialize the output.
Returns:
A valid ContentHandler that will create the result tree when it is fed SAX events.
Throws:
TransformerException -  

transform

public void transform(Source xmlSource,
                      Result outputTarget)
               throws TransformerException
Process the source tree to the output result.
Parameters:
xmlSource - The input for the source tree.
outputTarget - The output source target.
Throws:
TransformerException -  
Overrides:
transform in class Transformer

transform

public void transform(Source xmlSource,
                      Result outputTarget,
                      boolean shouldRelease)
               throws TransformerException
Process the source tree to the output result.
Parameters:
xmlSource - The input for the source tree.
outputTarget - The output source target.
shouldRelease - Flag indicating whether to release DTMManager.
Throws:
TransformerException -  

transformNode

public void transformNode(int node,
                          Result outputTarget)
                   throws TransformerException
Process the source node to the output result, if the processor supports the "http://xml.org/trax/features/dom/input" feature. %REVIEW% Do we need a Node version of this?
Parameters:
node - The input source node, which can be any valid DTM node.
outputTarget - The output source target.
Throws:
TransformerException -  

transformNode

public void transformNode(int node)
                   throws TransformerException
Process the source node to the output result, if the processor supports the "http://xml.org/trax/features/dom/input" feature. %REVIEW% Do we need a Node version of this?
Parameters:
node - The input source node, which can be any valid DTM node.
Throws:
TransformerException -  

getInputContentHandler

public ContentHandler getInputContentHandler()
Get a SAX2 ContentHandler for the input.
Returns:
A valid ContentHandler, which should never be null, as long as getFeature("http://xml.org/trax/features/sax/input") returns true.

getInputContentHandler

public ContentHandler getInputContentHandler(boolean doDocFrag)
Get a SAX2 ContentHandler for the input.
Parameters:
doDocFrag - true if a DocumentFragment should be created as the root, rather than a Document.
Returns:
A valid ContentHandler, which should never be null, as long as getFeature("http://xml.org/trax/features/sax/input") returns true.

getInputDeclHandler

public DeclHandler getInputDeclHandler()
Get a SAX2 DeclHandler for the input.
Returns:
A valid DeclHandler, which should never be null, as long as getFeature("http://xml.org/trax/features/sax/input") returns true.

getInputLexicalHandler

public LexicalHandler getInputLexicalHandler()
Get a SAX2 LexicalHandler for the input.
Returns:
A valid LexicalHandler, which should never be null, as long as getFeature("http://xml.org/trax/features/sax/input") returns true.

setOutputFormat

public void setOutputFormat(OutputProperties oformat)
Set the output properties for the transformation. These properties will override properties set in the templates with xsl:output.
Parameters:
oformat - A valid OutputProperties object (which will not be mutated), or null.

getOutputFormat

public OutputProperties getOutputFormat()
Get the output properties used for the transformation.
Returns:
the output format that was set by the user, otherwise the output format from the stylesheet.

setParameter

public void setParameter(java.lang.String name,
                         java.lang.String namespace,
                         java.lang.Object value)
Set a parameter for the templates.
Parameters:
name - The name of the parameter.
namespace - The namespace of the parameter.
value - The value object. This can be any valid Java object -- it's up to the processor to provide the proper coersion to the object, or simply pass it on for use in extensions.

setParameter

public void setParameter(java.lang.String name,
                         java.lang.Object value)
Set a parameter for the transformation.
Parameters:
name - The name of the parameter, which may have a namespace URI.
value - The value object. This can be any valid Java object -- it's up to the processor to provide the proper coersion to the object, or simply pass it on for use in extensions.
Overrides:
setParameter in class Transformer

getParameter

public java.lang.Object getParameter(java.lang.String name)
Get a parameter that was explicitly set with setParameter or setParameters. NEEDSDOC @param name
Returns:
A parameter that has been set with setParameter or setParameters, *not* all the xsl:params on the stylesheet (which require a transformation Source to be evaluated).
Overrides:
getParameter in class Transformer

setParameters

public void setParameters(java.util.Properties params)
Set a bag of parameters for the transformation. Note that these will not be additive, they will replace the existing set of parameters. NEEDSDOC @param params

clearParameters

public void clearParameters()
Reset the parameters to a null list.
Overrides:
clearParameters in class Transformer

setURIResolver

public void setURIResolver(URIResolver resolver)
Set an object that will be used to resolve URIs used in document(), etc.
Parameters:
resolver - An object that implements the URIResolver interface, or null.
Overrides:
setURIResolver in class Transformer

getURIResolver

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

setContentHandler

public void setContentHandler(ContentHandler handler)
Set the content event handler. NEEDSDOC @param handler
Throws:
java.lang.NullPointerException - If the handler is null.
See Also:
XMLReader.setContentHandler(org.xml.sax.ContentHandler)

getContentHandler

public ContentHandler getContentHandler()
Get the content event handler.
Returns:
The current content handler, or null if none was set.
See Also:
XMLReader.getContentHandler()

transformToRTF

public int transformToRTF(ElemTemplateElement templateParent)
                   throws TransformerException
Given a stylesheet element, create a result tree fragment from it's contents. The fragment will be built within the shared RTF DTM system used as a variable stack.
Parameters:
templateParent - The template element that holds the fragment.
Returns:
the NodeHandle for the root node of the resulting RTF.
Throws:
TransformerException -  
Usage:
**For advanced use only**

transformToGlobalRTF

public int transformToGlobalRTF(ElemTemplateElement templateParent)
                         throws TransformerException
Given a stylesheet element, create a result tree fragment from it's contents. The fragment will also use the shared DTM system, but will obtain its space from the global variable pool rather than the dynamic variable stack. This allows late binding of XUnresolvedVariables without the risk that their content will be discarded when the variable stack is popped.
Parameters:
templateParent - The template element that holds the fragment.
Returns:
the NodeHandle for the root node of the resulting RTF.
Throws:
TransformerException -  
Usage:
**For advanced use only**

getStringWriterPool

public ObjectPool getStringWriterPool()
Get the StringWriter pool, so that StringWriter objects may be reused.
Returns:
The string writer pool, not null.
Usage:
**For internal use only**

transformToString

public java.lang.String transformToString(ElemTemplateElement elem)
                                   throws TransformerException
Take the contents of a template element, process it, and convert it to a string.
Parameters:
elem - The parent element whose children will be output as a string.
Returns:
The stringized result of executing the elements children.
Throws:
TransformerException -  
Usage:
**For advanced use only**

applyTemplateToNode

public boolean applyTemplateToNode(ElemTemplateElement xslInstruction,
                                   ElemTemplate template,
                                   int child)
                            throws TransformerException
Given an element and mode, find the corresponding template and process the contents.
Parameters:
xslInstruction - The calling element.
template - The template to use if xsl:for-each, current template for apply-imports, or null.
child - The source context node.
Returns:
true if applied a template, false if not.
Throws:
TransformerException -  
Usage:
**For advanced use only**

executeChildTemplates

public void executeChildTemplates(ElemTemplateElement elem,
                                  Node context,
                                  QName mode,
                                  ContentHandler handler)
                           throws TransformerException
Execute each of the children of a template element. This method is only for extension use.
Parameters:
elem - The ElemTemplateElement that contains the children that should execute. NEEDSDOC @param context
mode - The current mode.
handler - The ContentHandler to where the result events should be fed.
Throws:
TransformerException -  
Usage:
**For advanced use only**

executeChildTemplates

public void executeChildTemplates(ElemTemplateElement elem,
                                  boolean shouldAddAttrs)
                           throws TransformerException
Execute each of the children of a template element.
Parameters:
elem - The ElemTemplateElement that contains the children that should execute.
shouldAddAttrs - true if xsl:attributes should be executed.
Throws:
TransformerException -  
Usage:
**For advanced use only**

executeChildTemplates

public void executeChildTemplates(ElemTemplateElement elem,
                                  ContentHandler handler)
                           throws TransformerException
Execute each of the children of a template element.
Parameters:
elem - The ElemTemplateElement that contains the children that should execute.
handler - The ContentHandler to where the result events should be fed.
Throws:
TransformerException -  
Usage:
**For advanced use only**

processSortKeys

public java.util.Vector processSortKeys(ElemForEach foreach,
                                        int sourceNodeContext)
                                 throws TransformerException
Get the keys for the xsl:sort elements. Note: Should this go into ElemForEach?
Parameters:
foreach - Valid ElemForEach element, not null.
sourceNodeContext - The current node context in the source tree, needed to evaluate the Attribute Value Templates.
Returns:
A Vector of NodeSortKeys, or null.
Throws:
TransformerException -  
Usage:
**For advanced use only**

getElementCallstack

public java.util.Vector getElementCallstack()
Get the stack of ElemTemplateElements.
Returns:
A copy of stack that contains the xsl element instructions, the earliest called in index zero, and the latest called in index size()-1.

getCurrentTemplateElementsCount

public int getCurrentTemplateElementsCount()
Get the count of how many elements are active.
Returns:
The number of active elements on the currentTemplateElements stack.

getCurrentTemplateElements

public ObjectStack getCurrentTemplateElements()
Get the count of how many elements are active.
Returns:
The number of active elements on the currentTemplateElements stack.

pushElemTemplateElement

public void pushElemTemplateElement(ElemTemplateElement elem)
Push the current template element.
Parameters:
elem - The current ElemTemplateElement (may be null, and then set via setCurrentElement).

popElemTemplateElement

public void popElemTemplateElement()
Pop the current template element.

setCurrentElement

public void setCurrentElement(ElemTemplateElement e)
Set the top of the current template elements stack.
Parameters:
e - The current ElemTemplateElement about to be executed.

getCurrentElement

public ElemTemplateElement getCurrentElement()
Retrieves the current ElemTemplateElement that is being executed.
Returns:
The current ElemTemplateElement that is executing, should not normally be null.

getCurrentNode

public int getCurrentNode()
This method retrieves the current context node in the source tree.
Returns:
The current context node (should never be null?).

getTemplateCallstack

public java.util.Vector getTemplateCallstack()
Get the call stack of xsl:template elements.
Returns:
A copy of stack that contains the xsl:template (ElemTemplate) instructions, the earliest called in index zero, and the latest called in index size()-1.

getCurrentTemplate

public ElemTemplate getCurrentTemplate()
This method retrieves the xsl:template that is in effect, which may be a matched template or a named template.

Please note that the ElemTemplate returned may be a default template, and thus may not have a template defined in the stylesheet.

Returns:
The current xsl:template, should not be null.

pushPairCurrentMatched

public void pushPairCurrentMatched(ElemTemplateElement template,
                                   int child)
Push both the current xsl:template or xsl:for-each onto the stack, along with the child node that was matched. (Note: should this only be used for xsl:templates?? -sb)
Parameters:
template - xsl:template or xsl:for-each.
child - The child that was matched.

popCurrentMatched

public void popCurrentMatched()
Pop the elements that were pushed via pushPairCurrentMatched.

getMatchedTemplate

public ElemTemplate getMatchedTemplate()
This method retrieves the xsl:template that was matched. Note that this may not be the same thing as the current template (which may be from getCurrentElement()), since a named template may be in effect.
Returns:
The pushed template that was pushed via pushPairCurrentMatched.

getMatchedNode

public int getMatchedNode()
Retrieves the node in the source tree that matched the template obtained via getMatchedTemplate().
Returns:
The matched node that corresponds to the match attribute of the current xsl:template.

getContextNodeList

public DTMIterator getContextNodeList()
Get the current context node list.
Returns:
A reset clone of the context node list.

getTransformer

public Transformer getTransformer()
Get the TrAX Transformer object in effect.
Returns:
This object.

setStylesheet

public void setStylesheet(StylesheetRoot stylesheetRoot)
Set the stylesheet for this processor. If this is set, then the process calls that take only the input .xml will use this instead of looking for a stylesheet PI. Also, setting the stylesheet is needed if you are going to use the processor as a SAX ContentHandler.
Parameters:
stylesheetRoot - A non-null StylesheetRoot object, or null if you wish to clear the stylesheet reference.

getStylesheet

public final StylesheetRoot getStylesheet()
Get the current stylesheet for this processor.
Returns:
The stylesheet that is associated with this transformer.

getQuietConflictWarnings

public boolean getQuietConflictWarnings()
Get quietConflictWarnings property. If the quietConflictWarnings property is set to true, warnings about pattern conflicts won't be printed to the diagnostics stream.
Returns:
True if this transformer should not report template match conflicts.

setQuietConflictWarnings

public void setQuietConflictWarnings(boolean b)
If the quietConflictWarnings property is set to true, warnings about pattern conflicts won't be printed to the diagnostics stream. False by default. (Currently setting this property will have no effect.)
Parameters:
b - true if conflict warnings should be suppressed.

setXPathContext

public void setXPathContext(XPathContext xcontext)
Set the execution context for XPath.
Parameters:
xcontext - A non-null reference to the XPathContext associated with this transformer.
Usage:
**For internal use only**

getXPathContext

public final XPathContext getXPathContext()
Get the XPath context associated with this transformer.
Returns:
The XPathContext reference, never null.

getStackGuard

public StackGuard getStackGuard()
Get the object used to guard the stack from recursion.
Returns:
The StackGuard object, which should never be null.
Usage:
**For internal use only**

getRecursionLimit

public int getRecursionLimit()
Get the recursion limit. Used for infinite loop check. If the value is -1, do not check for infinite loops. Anyone who wants to enable that check should change the value of this variable to be the level of recursion that they want to check. Be careful setting this variable, if the number is too low, it may report an infinite loop situation, when there is none. Post version 1.0.0, we'll make this a runtime feature.
Returns:
The limit on recursion, or -1 if no check is to be made.

setRecursionLimit

public void setRecursionLimit(int limit)
Set the recursion limit. Used for infinite loop check. If the value is -1, do not check for infinite loops. Anyone who wants to enable that check should change the value of this variable to be the level of recursion that they want to check. Be careful setting this variable, if the number is too low, it may report an infinite loop situation, when there is none. Post version 1.0.0, we'll make this a runtime feature.
Parameters:
limit - A number that represents the limit of recursion, or -1 if no checking is to be done.

getResultTreeHandler

public SerializationHandler getResultTreeHandler()
Get the SerializationHandler object.
Returns:
The current SerializationHandler, which may not be the main result tree manager.

getSerializationHandler

public SerializationHandler getSerializationHandler()
Get the SerializationHandler object.
Returns:
The current SerializationHandler, which may not be the main result tree manager.

getKeyManager

public KeyManager getKeyManager()
Get the KeyManager object.
Returns:
A reference to the KeyManager object, which should never be null.

isRecursiveAttrSet

public boolean isRecursiveAttrSet(ElemAttributeSet attrSet)
Check to see if this is a recursive attribute definition.
Parameters:
attrSet - A non-null ElemAttributeSet reference.
Returns:
true if the attribute set is recursive.

pushElemAttributeSet

public void pushElemAttributeSet(ElemAttributeSet attrSet)
Push an executing attribute set, so we can check for recursive attribute definitions.
Parameters:
attrSet - A non-null ElemAttributeSet reference.

popElemAttributeSet

public void popElemAttributeSet()
Pop the current executing attribute set.

getCountersTable

public CountersTable getCountersTable()
Get the table of counters, for optimized xsl:number support.
Returns:
The CountersTable, never null.

currentTemplateRuleIsNull

public boolean currentTemplateRuleIsNull()
Tell if the current template rule is null, i.e. if we are directly within an apply-templates. Used for xsl:apply-imports.
Returns:
True if the current template rule is null.

pushCurrentTemplateRuleIsNull

public void pushCurrentTemplateRuleIsNull(boolean b)
Push true if the current template rule is null, false otherwise.
Parameters:
b - True if the we are executing an xsl:for-each (or xsl:call-template?).

popCurrentTemplateRuleIsNull

public void popCurrentTemplateRuleIsNull()
Push true if the current template rule is null, false otherwise.

pushCurrentFuncResult

public void pushCurrentFuncResult(java.lang.Object val)
Push a funcion result for the currently active EXSLT func:function.
Parameters:
val - the result of executing an EXSLT func:result instruction for the current func:function.

popCurrentFuncResult

public java.lang.Object popCurrentFuncResult()
Pops the result of the currently active EXSLT func:function.
Returns:
the value of the func:function

currentFuncResultSeen

public boolean currentFuncResultSeen()
Determines whether an EXSLT func:result instruction has been executed for the currently active EXSLT func:function.
Returns:
true if and only if a func:result instruction has been executed

getMsgMgr

public MsgMgr getMsgMgr()
Return the message manager.
Returns:
The message manager, never null.

setErrorListener

public void setErrorListener(ErrorListener listener)
                      throws java.lang.IllegalArgumentException
Set the error event listener.
Parameters:
listener - The new error listener.
Throws:
java.lang.IllegalArgumentException - if
Overrides:
setErrorListener in class Transformer

getErrorListener

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

getTraceManager

public TraceManager getTraceManager()
Get an instance of the trace manager for this transformation. This object can be used to set trace listeners on various events during the transformation.
Returns:
A reference to the TraceManager, never null.

getFeature

public boolean getFeature(java.lang.String name)
                   throws SAXNotRecognizedException,
                          SAXNotSupportedException
Look up the value of a feature.

The feature name is any fully-qualified URI. It is possible for an TransformerFactory to recognize a feature name but to be unable to return its value; this is especially true in the case of an adapter for a SAX1 Parser, which has no way of knowing whether the underlying parser is validating, for example.

Open issues:

Should getFeature be changed to hasFeature?

Keith Visco writes: Should getFeature be changed to hasFeature? It returns a boolean which indicated whether the "state" of feature is "true or false". I assume this means whether or not a feature is supported? I know SAX is using "getFeature", but to me "hasFeature" is cleaner.
Parameters:
name - The feature name, which is a fully-qualified URI.
Returns:
The current state of the feature (true or false).
Throws:
SAXNotRecognizedException - When the TransformerFactory does not recognize the feature name.
SAXNotSupportedException - When the TransformerFactory recognizes the feature name but cannot determine its value at this time.
SAXNotRecognizedException -  
SAXNotSupportedException -  

getMode

public QName getMode()
NEEDSDOC Method getMode NEEDSDOC (getMode) @return

pushMode

public void pushMode(QName mode)
NEEDSDOC Method pushMode NEEDSDOC @param mode

popMode

public void popMode()
NEEDSDOC Method popMode

runTransformThread

public void runTransformThread(int priority)
Called by SourceTreeHandler to start the transformation in a separate thread NEEDSDOC @param priority

runTransformThread

public void runTransformThread()
Called by this.transform() if isParserEventsOnMain()==false. Similar with runTransformThread(), but no priority is set and setTransformThread is not set.

runTransformThread

public static void runTransformThread(java.lang.Runnable runnable)
Called by CoRoutineSAXParser. Launches the CoroutineSAXParser in a thread, and prepares it to invoke the parser from that thread upon request.

waitTransformThread

public void waitTransformThread()
                         throws SAXException
Used by SourceTreeHandler to wait until the transform completes
Throws:
SAXException -  

getExceptionThrown

public java.lang.Exception getExceptionThrown()
Get the exception thrown by the secondary thread (normally the transform thread).
Returns:
The thrown exception, or null if no exception was thrown.

setExceptionThrown

public void setExceptionThrown(java.lang.Exception e)
Set the exception thrown by the secondary thread (normally the transform thread).
Parameters:
e - The thrown exception, or null if no exception was thrown.

setSourceTreeDocForThread

public void setSourceTreeDocForThread(int doc)
This is just a way to set the document for run().
Parameters:
doc - A non-null reference to the root of the tree to be transformed.

setXMLSource

public void setXMLSource(Source source)
Set the input source for the source tree, which is needed if the parse thread is not the main thread, in order for the parse thread's run method to get to the input source.
Parameters:
source - The input source for the source tree.

isTransformDone

public boolean isTransformDone()
Tell if the transform method is completed.
Returns:
True if transformNode has completed, or an exception was thrown.

setIsTransformDone

public void setIsTransformDone(boolean done)
Set if the transform method is completed.
Parameters:
done - True if transformNode has completed, or an exception was thrown.

run

public void run()
Run the transform thread.
Specified by:
run in interface java.lang.Runnable

getSnapshot

public TransformSnapshot getSnapshot()
Deprecated. This is an internal tooling API that nobody seems to be using
This will get a snapshot of the current executing context
Returns:
TransformSnapshot object, snapshot of executing context

executeFromSnapshot

public void executeFromSnapshot(TransformSnapshot ts)
                         throws TransformerException
Deprecated. This is an internal tooling API that nobody seems to be using
This will execute the following XSLT instructions from the snapshot point, after the stylesheet execution context has been reset from the snapshot point.
Parameters:
ts - The snapshot of where to start execution
Throws:
TransformerException -  

resetToStylesheet

public void resetToStylesheet(TransformSnapshot ts)
Deprecated. This is an internal tooling API that nobody seems to be using
This will reset the stylesheet execution context from the snapshot point.
Parameters:
ts - The snapshot of where to start execution

stopTransformation

public void stopTransformation()
NEEDSDOC Method stopTransformation

getShouldStripSpace

public short getShouldStripSpace(int elementHandle,
                                 DTM dtm)
Test whether whitespace-only text nodes are visible in the logical view of DTM. Normally, this function will be called by the implementation of DTM; it is not normally called directly from user code.
Specified by:
getShouldStripSpace in interface DTMWSFilter
Parameters:
elementHandle - int Handle of the element.
Returns:
one of NOTSTRIP, STRIP, or INHERIT.

init

public void init(ToXMLSAXHandler h,
                 Transformer transformer,
                 ContentHandler realHandler)
Initializer method.
Parameters:
transformer - non-null transformer instance
realHandler - Content Handler instance

setSerializationHandler

public void setSerializationHandler(SerializationHandler xoh)

fireGenerateEvent

public void fireGenerateEvent(int eventType,
                              char[] ch,
                              int start,
                              int length)
Fire off characters, cdate events.
Specified by:
fireGenerateEvent in interface SerializerTrace
See Also:
SerializerTrace.fireGenerateEvent(int, char[], int, int)

fireGenerateEvent

public void fireGenerateEvent(int eventType,
                              java.lang.String name,
                              Attributes atts)
Fire off startElement, endElement events.
Specified by:
fireGenerateEvent in interface SerializerTrace
See Also:
SerializerTrace.fireGenerateEvent(int, String, Attributes)

fireGenerateEvent

public void fireGenerateEvent(int eventType,
                              java.lang.String name,
                              java.lang.String data)
Fire off processingInstruction events.
Specified by:
fireGenerateEvent in interface SerializerTrace
See Also:
SerializerTrace.fireGenerateEvent(int, String, String)

fireGenerateEvent

public void fireGenerateEvent(int eventType,
                              java.lang.String data)
Fire off comment and entity ref events.
Specified by:
fireGenerateEvent in interface SerializerTrace
See Also:
SerializerTrace.fireGenerateEvent(int, String)

fireGenerateEvent

public void fireGenerateEvent(int eventType)
Fire off startDocument, endDocument events.
Specified by:
fireGenerateEvent in interface SerializerTrace
See Also:
SerializerTrace.fireGenerateEvent(int)

hasTraceListeners

public boolean hasTraceListeners()
Specified by:
hasTraceListeners in interface SerializerTrace
See Also:
SerializerTrace.hasTraceListeners()

getDebug

public boolean getDebug()

setDebug

public void setDebug(boolean b)

getIncremental

public boolean getIncremental()
Returns:
Incremental flag

getOptimize

public boolean getOptimize()
Returns:
Optimization flag

getSource_location

public boolean getSource_location()
Returns:
Source location flag


Copyright 2006 Apache XML Project. All Rights Reserved.