net.sf.saxon.event

Class ContentHandlerProxy.ContentHandlerProxyTraceListener

Enclosing Class:
ContentHandlerProxy
Implemented Interfaces:
EventListener, TraceListener

public class ContentHandlerProxy.ContentHandlerProxyTraceListener
extends java.lang.Object
implements TraceListener

Create a TraceListener that will collect information about the current location in the source document. This is used to provide information to the receiving application for diagnostic purposes.

Method Summary

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.
void
enter(InstructionInfo instruction, XPathContext context)
Method that is called when an instruction in the stylesheet gets processed.
Stack
getContextItemStack()
Get the context item stack
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.

Method Details

close

public void close()
Method called at the end of execution, that is, when the run-time execution ends
Specified by:
close in interface TraceListener

endCurrentItem

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.
Specified by:
endCurrentItem in interface TraceListener
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.

enter

public void enter(InstructionInfo instruction,
                  XPathContext context)
Method that is called when an instruction in the stylesheet gets processed.
Specified by:
enter in interface TraceListener
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.

getContextItemStack

public Stack getContextItemStack()
Get the context item stack
Returns:
the context item stack

leave

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.
Specified by:
leave in interface TraceListener
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.

open

public void open()
Method called at the start of execution, that is, when the run-time transformation starts
Specified by:
open in interface TraceListener

startCurrentItem

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.
Specified by:
startCurrentItem in interface TraceListener
Parameters:
currentItem - the new current item. Item objects are not mutable; it is safe to retain a reference to the Item for later use.