| net.sf.saxon.trace.TraceListener
All known Subclasses: net.sf.saxon.trace.AbstractTraceListener, net.sf.saxon.trace.TimedTraceListener, net.sf.saxon.trace.TraceEventMulticaster,
| TraceListener | | public interface TraceListener extends EventListener(Code) | | This interface defines methods that are called by Saxon during the execution of
a stylesheet, if tracing is switched on. Tracing can be switched on by nominating
an implementation of this class using the TRACE_LISTENER feature of the TransformerFactory,
or using the addTraceListener() method of the Controller, which is Saxon's implementation
of tyhe JAXP javax.xml.transform.Transformer interface.
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| Method Summary | |
| public void | close()
| | public void | endCurrentItem(Item currentItem)
Method that is called when an instruction has finished processing a new current item
and is ready to select a new current item or revert to the previous current item.
The method will be called before the leave() method for the instruction that made this
item current.
Parameters:
currentItem - the item that was current, whose processing is now complete. | | public void | enter(InstructionInfo instruction, XPathContext context)
Method that is called when an instruction in the stylesheet gets processed.
Parameters:
instruction - gives information about the instruction beingexecuted, and about the context in which it is executed. | | public void | leave(InstructionInfo instruction)
Method that is called after processing an instruction of the stylesheet,
that is, after any child instructions have been processed.
Parameters:
instruction - gives the same information that was supplied to theenter method, though it is not necessarily the same object. | | public void | open()
| | public void | startCurrentItem(Item currentItem)
Method that is called by an instruction that changes the current item
in the source document: that is, xsl:for-each, xsl:apply-templates, xsl:for-each-group.
The method is called after the enter method for the relevant instruction, and is called
once for each item processed.
Parameters:
currentItem - the new current item. |
| close | | public void close()(Code) | | Method called at the end of execution, that is, when the run-time execution ends
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| endCurrentItem | | public void endCurrentItem(Item currentItem)(Code) | | Method that is called when an instruction has finished processing a new current item
and is ready to select a new current item or revert to the previous current item.
The method will be called before the leave() method for the instruction that made this
item current.
Parameters:
currentItem - the item that was current, whose processing is now complete. This will representthe same underlying item as the corresponding startCurrentItem() call, though it willnot necessarily be the same actual object. |
| enter | | public void enter(InstructionInfo instruction, XPathContext context)(Code) | | Method that is called when an instruction in the stylesheet gets processed.
Parameters:
instruction - gives information about the instruction beingexecuted, and about the context in which it is executed. This object is mutable,so if information from the InstructionInfo is to be retained, it must be copied. |
| leave | | public void leave(InstructionInfo instruction)(Code) | | Method that is called after processing an instruction of the stylesheet,
that is, after any child instructions have been processed.
Parameters:
instruction - gives the same information that was supplied to theenter method, though it is not necessarily the same object. Note that theline number of the instruction is that of the start tag in the source stylesheet,not the line number of the end tag. |
| open | | public void open()(Code) | | Method called at the start of execution, that is, when the run-time transformation starts
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| startCurrentItem | | public void startCurrentItem(Item currentItem)(Code) | | Method that is called by an instruction that changes the current item
in the source document: that is, xsl:for-each, xsl:apply-templates, xsl:for-each-group.
The method is called after the enter method for the relevant instruction, and is called
once for each item processed.
Parameters:
currentItem - the new current item. Item objects are not mutable; it is safe to retaina reference to the Item for later use. |
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