net.sf.saxon.event
Class ContentHandlerProxy.ContentHandlerProxyTraceListener
java.lang.Object
net.sf.saxon.event.ContentHandlerProxy.ContentHandlerProxyTraceListener
- ContentHandlerProxy
- EventListener, TraceListener
public class ContentHandlerProxy.ContentHandlerProxyTraceListener
extends java.lang.Object
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.
void | close() - Method called at the end of execution, that is, when the run-time execution ends
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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.
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Stack | getContextItemStack() - Get the context item stack
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void | leave(InstructionInfo instruction) - Method that is called after processing an instruction of the stylesheet,
that is, after any child instructions have been processed.
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void | open() - Method called at the start of execution, that is, when the run-time transformation starts
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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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close
public void close()
Method called at the end of execution, that is, when the run-time execution ends
- 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.
- endCurrentItem in interface TraceListener
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.
- enter in interface TraceListener
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
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.
- leave in interface TraceListener
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
- 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.
- startCurrentItem in interface TraceListener
currentItem
- the new current item. Item objects are not mutable; it is safe to retain
a reference to the Item for later use.