Package org.apache.xalan.trace

Class PrintTraceListener

java.lang.Object
org.apache.xalan.trace.PrintTraceListener
All Implemented Interfaces:
EventListener, TraceListener, TraceListenerEx, TraceListenerEx2, TraceListenerEx3
public class PrintTraceListener extends Object implements TraceListenerEx3
Implementation of the TraceListener interface that prints each event to standard out as it occurs.
See Also:

  • Field Details

    • 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 Details

    • PrintTraceListener

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

  • Method Details

    • _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.
      Specified by:
      trace in interface TraceListener
      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.
      Specified by:
      traceEnd in interface TraceListenerEx2
      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.
      Specified by:
      selected in interface TraceListener
      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.
      Specified by:
      selectEnd in interface TraceListenerEx
      Parameters:
      ev - the generate event.
      Throws:
      TransformerException

    • generated

      public void generated(GenerateEvent ev)
      Print information about a Generate event.
      Specified by:
      generated in interface TraceListener
      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