net.sf.saxon.trace
public interface TraceListener extends EventListener
Method Summary | |
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void | close()
Method called at the end of execution, that is, when the run-time execution ends |
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.
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void | enter(InstructionInfo instruction, XPathContext context)
Method that is called when an instruction in the stylesheet gets processed. |
void | leave(InstructionInfo instruction)
Method that is called after processing an instruction of the stylesheet,
that is, after any child instructions have been processed. |
void | open()
Method called at the start of execution, that is, when the run-time transformation starts |
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.
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Parameters: currentItem the item that was current, whose processing is now complete. This will represent the same underlying item as the corresponding startCurrentItem() call, though it will not necessarily be the same actual object.
Parameters: instruction gives information about the instruction being executed, 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.
Parameters: instruction gives the same information that was supplied to the enter method, though it is not necessarily the same object. Note that the line number of the instruction is that of the start tag in the source stylesheet, not the line number of the end tag.
Parameters: currentItem the new current item. Item objects are not mutable; it is safe to retain a reference to the Item for later use.