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AbstractTraceListener
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SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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net.sf.saxon.trace</FONT>
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Class AbstractTraceListener</H2>
<PRE>
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>net.sf.saxon.trace.AbstractTraceListener</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/EventListener.html?is-external=true" title="class or interface in java.util">EventListener</A>, <A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></DD>
</DL>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../net/sf/saxon/trace/XQueryTraceListener.html" title="class in net.sf.saxon.trace">XQueryTraceListener</A>, <A HREF="../../../../net/sf/saxon/trace/XSLTTraceListener.html" title="class in net.sf.saxon.trace">XSLTTraceListener</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public abstract class <B>AbstractTraceListener</B><DT>extends <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></DL>
</PRE>
<P>
This is the standard trace listener used when the -T option is specified on the command line.
There are two variants, represented by subclasses: one for XSLT, and one for XQuery. The two variants
differ in that they present the trace output in terms of constructs used in the relevant host language.
<P>
<P>
<HR>
<P>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<B>Constructor Summary</B></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#AbstractTraceListener()">AbstractTraceListener</A></B>()</CODE>
<BR>
</TD>
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<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#close()">close</A></B>()</CODE>
<BR>
Called at end</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#endCurrentItem(net.sf.saxon.om.Item)">endCurrentItem</A></B>(<A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A> item)</CODE>
<BR>
Called after a node of the source tree got processed</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#enter(net.sf.saxon.trace.InstructionInfo, net.sf.saxon.expr.XPathContext)">enter</A></B>(<A HREF="../../../../net/sf/saxon/trace/InstructionInfo.html" title="interface in net.sf.saxon.trace">InstructionInfo</A> info,
<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</CODE>
<BR>
Called when an instruction in the stylesheet gets processed</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#escape(java.lang.String)">escape</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> in)</CODE>
<BR>
Escape a string for XML output (in an attribute delimited by double quotes).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../net/sf/saxon/expr/parser/CodeInjector.html" title="interface in net.sf.saxon.expr.parser">CodeInjector</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#getCodeInjector()">getCodeInjector</A></B>()</CODE>
<BR>
Get the associated CodeInjector to be used at compile time to generate the tracing calls</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected abstract <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#getOpeningAttributes()">getOpeningAttributes</A></B>()</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/PrintStream.html?is-external=true" title="class or interface in java.io">PrintStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#getOutputDestination()">getOutputDestination</A></B>()</CODE>
<BR>
Get the output destination</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#leave(net.sf.saxon.trace.InstructionInfo)">leave</A></B>(<A HREF="../../../../net/sf/saxon/trace/InstructionInfo.html" title="interface in net.sf.saxon.trace">InstructionInfo</A> info)</CODE>
<BR>
Called after an instruction of the stylesheet got processed</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#open(net.sf.saxon.Controller)">open</A></B>(<A HREF="../../../../net/sf/saxon/Controller.html" title="class in net.sf.saxon">Controller</A> controller)</CODE>
<BR>
Called at start</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#setOutputDestination(java.io.PrintStream)">setOutputDestination</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/io/PrintStream.html?is-external=true" title="class or interface in java.io">PrintStream</A> stream)</CODE>
<BR>
Set the output destination (default is System.err)</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#startCurrentItem(net.sf.saxon.om.Item)">startCurrentItem</A></B>(<A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A> item)</CODE>
<BR>
Called when an item becomes the context item</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected abstract <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/AbstractTraceListener.html#tag(int)">tag</A></B>(int construct)</CODE>
<BR>
</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
</TR>
</TABLE>
<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="AbstractTraceListener()"><!-- --></A><H3>
AbstractTraceListener</H3>
<PRE>
public <B>AbstractTraceListener</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="getCodeInjector()"><!-- --></A><H3>
getCodeInjector</H3>
<PRE>
public <A HREF="../../../../net/sf/saxon/expr/parser/CodeInjector.html" title="interface in net.sf.saxon.expr.parser">CodeInjector</A> <B>getCodeInjector</B>()</PRE>
<DL>
<DD>Get the associated CodeInjector to be used at compile time to generate the tracing calls
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="open(net.sf.saxon.Controller)"><!-- --></A><H3>
open</H3>
<PRE>
public void <B>open</B>(<A HREF="../../../../net/sf/saxon/Controller.html" title="class in net.sf.saxon">Controller</A> controller)</PRE>
<DL>
<DD>Called at start
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html#open(net.sf.saxon.Controller)">open</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>controller</CODE> - identifies the transformation controller, and provides the listener with
access to context and configuration information</DL>
</DD>
</DL>
<HR>
<A NAME="getOpeningAttributes()"><!-- --></A><H3>
getOpeningAttributes</H3>
<PRE>
protected abstract <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getOpeningAttributes</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="close()"><!-- --></A><H3>
close</H3>
<PRE>
public void <B>close</B>()</PRE>
<DL>
<DD>Called at end
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html#close()">close</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="enter(net.sf.saxon.trace.InstructionInfo, net.sf.saxon.expr.XPathContext)"><!-- --></A><H3>
enter</H3>
<PRE>
public void <B>enter</B>(<A HREF="../../../../net/sf/saxon/trace/InstructionInfo.html" title="interface in net.sf.saxon.trace">InstructionInfo</A> info,
<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</PRE>
<DL>
<DD>Called when an instruction in the stylesheet gets processed
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html#enter(net.sf.saxon.trace.InstructionInfo, net.sf.saxon.expr.XPathContext)">enter</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>info</CODE> - 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.</DL>
</DD>
</DL>
<HR>
<A NAME="escape(java.lang.String)"><!-- --></A><H3>
escape</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>escape</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> in)</PRE>
<DL>
<DD>Escape a string for XML output (in an attribute delimited by double quotes).
This method also collapses whitespace (since the value may be an XPath expression that
was originally written over several lines).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="leave(net.sf.saxon.trace.InstructionInfo)"><!-- --></A><H3>
leave</H3>
<PRE>
public void <B>leave</B>(<A HREF="../../../../net/sf/saxon/trace/InstructionInfo.html" title="interface in net.sf.saxon.trace">InstructionInfo</A> info)</PRE>
<DL>
<DD>Called after an instruction of the stylesheet got processed
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html#leave(net.sf.saxon.trace.InstructionInfo)">leave</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>info</CODE> - 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.</DL>
</DD>
</DL>
<HR>
<A NAME="tag(int)"><!-- --></A><H3>
tag</H3>
<PRE>
protected abstract <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>tag</B>(int construct)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="startCurrentItem(net.sf.saxon.om.Item)"><!-- --></A><H3>
startCurrentItem</H3>
<PRE>
public void <B>startCurrentItem</B>(<A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A> item)</PRE>
<DL>
<DD>Called when an item becomes the context item
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html#startCurrentItem(net.sf.saxon.om.Item)">startCurrentItem</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>item</CODE> - the new current item. Item objects are not mutable; it is safe to retain
a reference to the Item for later use.</DL>
</DD>
</DL>
<HR>
<A NAME="endCurrentItem(net.sf.saxon.om.Item)"><!-- --></A><H3>
endCurrentItem</H3>
<PRE>
public void <B>endCurrentItem</B>(<A HREF="../../../../net/sf/saxon/om/Item.html" title="interface in net.sf.saxon.om">Item</A> item)</PRE>
<DL>
<DD>Called after a node of the source tree got processed
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html#endCurrentItem(net.sf.saxon.om.Item)">endCurrentItem</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>item</CODE> - 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.</DL>
</DD>
</DL>
<HR>
<A NAME="setOutputDestination(java.io.PrintStream)"><!-- --></A><H3>
setOutputDestination</H3>
<PRE>
public void <B>setOutputDestination</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/io/PrintStream.html?is-external=true" title="class or interface in java.io">PrintStream</A> stream)</PRE>
<DL>
<DD>Set the output destination (default is System.err)
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html#setOutputDestination(java.io.PrintStream)">setOutputDestination</A></CODE> in interface <CODE><A HREF="../../../../net/sf/saxon/lib/TraceListener.html" title="interface in net.sf.saxon.lib">TraceListener</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>stream</CODE> - the output destination for tracing output</DL>
</DD>
</DL>
<HR>
<A NAME="getOutputDestination()"><!-- --></A><H3>
getOutputDestination</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/PrintStream.html?is-external=true" title="class or interface in java.io">PrintStream</A> <B>getOutputDestination</B>()</PRE>
<DL>
<DD>Get the output destination
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
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