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## org.apache.xalan.trace
Class TraceManager

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

public class TraceManager
extends java.lang.Object

This class manages trace listeners, and acts as an interface for the tracing functionality in Xalan.

Constructor Summary
`TraceManager(TransformerImpl transformer)` Constructor for the trace manager.

Method Summary
`void` | `addTraceListener(TraceListener tl)` Add a trace listener for the purposes of debugging and diagnosis.
`void` | `fireGenerateEvent(GenerateEvent te)` Fire a generate event.
`void` | `fireSelectedEndEvent(EndSelectionEvent se)` Fire a selection event.
`void` | `fireSelectedEndEvent(int sourceNode, ElemTemplateElement styleNode, java.lang.String attributeName, XPath xpath, XObject selection)` Fire a selection event.
`void` | `fireSelectedEvent(int sourceNode, ElemTemplateElement styleNode, java.lang.String attributeName, XPath xpath, XObject selection)` Fire a selection event.
`void` | `fireSelectedEvent(SelectionEvent se)` Fire a selection event.
`void` | `fireTraceEndEvent(ElemTemplateElement styleNode)` Fire a end trace event, after all children of an element have been executed.
`void` | `fireTraceEndEvent(TracerEvent te)` Fire a trace event.
`void` | `fireTraceEvent(ElemTemplateElement styleNode)` Fire a trace event.
`void` | `fireTraceEvent(TracerEvent te)` Fire a trace event.
`boolean` | `hasTraceListeners()` Tell if trace listeners are present.
`void` | `removeTraceListener(TraceListener tl)` Remove a trace listener.

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

Constructor Detail

### TraceManager

    public TraceManager(TransformerImpl transformer)

  Constructor for the trace manager.
  Parameters:
    `transformer` - a non-null instance of a transformer

Method Detail

### addTraceListener

    public void addTraceListener(TraceListener tl)
                          throws java.util.TooManyListenersException

  Add a trace listener for the purposes of debugging and diagnosis.
  Parameters:
    `tl` - Trace listener to be added.
  Throws:
    java.util.TooManyListenersException -

### removeTraceListener

    public void removeTraceListener(TraceListener tl)

  Remove a trace listener.
  Parameters:
    `tl` - Trace listener to be removed.

### fireGenerateEvent

    public void fireGenerateEvent(GenerateEvent te)

  Fire a generate event.
  Parameters:
    `te` - Generate Event to fire

### hasTraceListeners

    public boolean hasTraceListeners()

  Tell if trace listeners are present.
  Returns:
    True if there are trace listeners

### fireTraceEvent

    public void fireTraceEvent(ElemTemplateElement styleNode)

  Fire a trace event.
  Parameters:
    `sourceNode` - Current source node
    `mode` - Template mode
    `styleNode` - Stylesheet template node

### fireTraceEndEvent

    public void fireTraceEndEvent(ElemTemplateElement styleNode)

  Fire a end trace event, after all children of an element have been executed.
  Parameters:
    `sourceNode` - Current source node
    `mode` - Template mode
    `styleNode` - Stylesheet template node

### fireTraceEndEvent

    public void fireTraceEndEvent(TracerEvent te)

  Fire a trace event.
  Parameters:
    `te` - Trace event to fire

### fireTraceEvent

    public void fireTraceEvent(TracerEvent te)

  Fire a trace event.
  Parameters:
    `te` - Trace event to fire

### fireSelectedEvent

    public void fireSelectedEvent(int sourceNode,
                                  ElemTemplateElement styleNode,
                                  java.lang.String attributeName,
                                  XPath xpath,
                                  XObject selection)
                           throws TransformerException

  Fire a selection event.
  Parameters:
    `sourceNode` - Current source node
    `styleNode` - node in the style tree reference for the event.
    `attributeName` - The attribute name from which the selection is made.
    `xpath` - The XPath that executed the selection.
    `selection` - The result of the selection.
  Throws:
    TransformerException -

### fireSelectedEndEvent

    public void fireSelectedEndEvent(int sourceNode,
                                     ElemTemplateElement styleNode,
                                     java.lang.String attributeName,
                                     XPath xpath,
                                     XObject selection)
                              throws TransformerException

  Fire a selection event.
  Parameters:
    `sourceNode` - Current source node
    `styleNode` - node in the style tree reference for the event.
    `attributeName` - The attribute name from which the selection is made.
    `xpath` - The XPath that executed the selection.
    `selection` - The result of the selection.
  Throws:
    TransformerException -

### fireSelectedEndEvent

    public void fireSelectedEndEvent(EndSelectionEvent se)
                              throws TransformerException

  Fire a selection event.
  Parameters:
    `se` - Selection event to fire
  Throws:
    TransformerException -

### fireSelectedEvent

    public void fireSelectedEvent(SelectionEvent se)
                           throws TransformerException

  Fire a selection event.
  Parameters:
    `se` - Selection event to fire
  Throws:
    TransformerException -

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