org.apache.xalan.trace
Class PrintTraceListener

java.lang.Object
  |
  +--org.apache.xalan.trace.PrintTraceListener

public class PrintTraceListener
extends java.lang.Object
implements TraceListenerEx3

Implementation of the TraceListener interface that prints each event to standard out as it occurs.

See Also:
TracerEvent
Usage:
**For advanced use only**

Field Summary
 boolean m_traceElements
          Set to true if the listener is to print events that occur as each node is 'executed' in the stylesheet.
 boolean m_traceExtension
          Set to true if the listener is to print information after each extension event.
 boolean m_traceGeneration
          Set to true if the listener is to print information after each result-tree generation event.
 boolean m_traceSelection
          Set to true if the listener is to print information after each selection event.
 boolean m_traceTemplates
          This needs to be set to true if the listener is to print an event whenever a template is invoked.
 
Constructor Summary
PrintTraceListener(java.io.PrintWriter pw)
          Construct a trace listener.
 
Method Summary
 void _trace(TracerEvent ev)
          Print information about a TracerEvent.
 void extension(ExtensionEvent ev)
          Print information about an extension event.
 void extensionEnd(ExtensionEvent ev)
          Print information about an extension event.
 void generated(GenerateEvent ev)
          Print information about a Generate event.
 void selected(SelectionEvent ev)
          Method that is called just after a select attribute has been evaluated.
 void selectEnd(EndSelectionEvent ev)
          Method that is called after an xsl:apply-templates or xsl:for-each selection occurs.
 void trace(TracerEvent ev)
          Print information about a TracerEvent.
 void traceEnd(TracerEvent ev)
          Method that is called when the end of a trace event occurs.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

m_traceTemplates

public boolean m_traceTemplates
This needs to be set to true if the listener is to print an event whenever a template is invoked.

m_traceElements

public boolean m_traceElements
Set to true if the listener is to print events that occur as each node is 'executed' in the stylesheet.

m_traceGeneration

public boolean m_traceGeneration
Set to true if the listener is to print information after each result-tree generation event.

m_traceSelection

public boolean m_traceSelection
Set to true if the listener is to print information after each selection event.

m_traceExtension

public boolean m_traceExtension
Set to true if the listener is to print information after each extension event.
Constructor Detail

PrintTraceListener

public PrintTraceListener(java.io.PrintWriter pw)
Construct a trace listener.
Parameters:
pw - PrintWriter to use for tracing events
Method Detail

_trace

public void _trace(TracerEvent ev)
Print information about a TracerEvent.
Parameters:
ev - the trace event.

trace

public void trace(TracerEvent ev)
Print information about a TracerEvent.
Parameters:
ev - the trace event.

traceEnd

public void traceEnd(TracerEvent ev)
Method that is called when the end of a trace event occurs. The method is blocking. It must return before processing continues.
Parameters:
ev - the trace event.

selected

public void selected(SelectionEvent ev)
              throws TransformerException
Method that is called just after a select attribute has been evaluated.
Parameters:
ev - the generate event.
Throws:
TransformerException -  

selectEnd

public void selectEnd(EndSelectionEvent ev)
               throws TransformerException
Method that is called after an xsl:apply-templates or xsl:for-each selection occurs.
Parameters:
ev - the generate event.
Throws:
TransformerException -  

generated

public void generated(GenerateEvent ev)
Print information about a Generate event.
Parameters:
ev - the trace event.

extension

public void extension(ExtensionEvent ev)
Print information about an extension event.
Specified by:
extension in interface TraceListenerEx3
Parameters:
ev - the extension event to print information about

extensionEnd

public void extensionEnd(ExtensionEvent ev)
Print information about an extension event.
Specified by:
extensionEnd in interface TraceListenerEx3
Parameters:
ev - the extension event to print information about


Copyright 2006 Apache XML Project. All Rights Reserved.