net.sf.saxon.trace

Class XQueryTraceListener

java.lang.Object

net.sf.saxon.lib.StandardDiagnostics

net.sf.saxon.trace.AbstractTraceListener

net.sf.saxon.trace.XQueryTraceListener

All Implemented Interfaces:

TraceListener

public class XQueryTraceListener
extends AbstractTraceListener

A Simple trace listener for XQuery that writes messages (by default) to System.err

Field Summary

Fields inherited from class net.sf.saxon.trace.AbstractTraceListener

indent, out

Fields inherited from class net.sf.saxon.lib.StandardDiagnostics

MAX_MESSAGE_LENGTH, MAX_MESSAGE_LINE_LENGTH, MIN_MESSAGE_LINE_LENGTH, TARGET_MESSAGE_LINE_LENGTH

Constructor Summary

Constructors

Constructor and Description
XQueryTraceListener()

Method Summary

Modifier and Type	Method and Description
void	endRuleSearch(java.lang.Object rule, Mode mode, Item item) Called at the end of a rule search
protected java.lang.String	getOpeningAttributes() Generate attributes to be included in the opening trace element
void	startRuleSearch() Called at the start of a rule search
protected java.lang.String	tag(Traceable info) Get the trace element tagname to be used for a particular construct.

Methods inherited from class net.sf.saxon.trace.AbstractTraceListener

close, endCurrentItem, enter, escape, getOutputDestination, isApplicable, leave, level, open, setLevelOfDetail, setOutputDestination, spaces, startCurrentItem

Methods inherited from class net.sf.saxon.lib.StandardDiagnostics

abbreviateLocationURI, abbreviateLocationURIDefault, expandSpecialCharacters, formatListOfOffendingNodes, getInstructionName, getInstructionNameDefault, getLocationMessageText, logStackTrace, showOriginator, wordWrap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XQueryTraceListener

public XQueryTraceListener()

Method Detail

getOpeningAttributes

protected java.lang.String getOpeningAttributes()

Generate attributes to be included in the opening trace element

Specified by:

getOpeningAttributes in class AbstractTraceListener

tag

protected java.lang.String tag(Traceable info)

Get the trace element tagname to be used for a particular construct. Return null for trace events that are ignored by this trace listener.

Specified by:

tag in class AbstractTraceListener

Parameters:

info - trace information

startRuleSearch

public void startRuleSearch()

Called at the start of a rule search

Specified by:

startRuleSearch in interface TraceListener

Overrides:

startRuleSearch in class AbstractTraceListener

endRuleSearch

public void endRuleSearch(java.lang.Object rule,
                          Mode mode,
                          Item item)

Called at the end of a rule search

Specified by:

endRuleSearch in interface TraceListener

Overrides:

endRuleSearch in class AbstractTraceListener

Parameters:

rule - the rule that has been selected

mode - the mode in operation

item - the item that was checked against