<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.6.0_18) on Fri Dec 09 20:48:37 GMT 2011 --> <TITLE> ContextStackIterator </TITLE> <META NAME="date" CONTENT="2011-12-09"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="ContextStackIterator"; } } </SCRIPT> <NOSCRIPT> </NOSCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <HR> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" 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</TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.VariableEvaluation.html" title="class in net.sf.saxon.trace"><B>PREV CLASS</B></A> <A HREF="../../../../net/sf/saxon/trace/ExpressionPresenter.html" title="class in net.sf.saxon.trace"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?net/sf/saxon/trace/ContextStackIterator.html" target="_top"><B>FRAMES</B></A> <A HREF="ContextStackIterator.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> net.sf.saxon.trace</FONT> <BR> Class ContextStackIterator</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.ContextStackIterator</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A><<A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace">ContextStackFrame</A>></DD> </DL> <HR> <DL> <DT><PRE>public class <B>ContextStackIterator</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="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A><<A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace">ContextStackFrame</A>></DL> </PRE> <P> This class provides a representation of the current runtime call stack, as represented by the stack of XPathContext objects. <P> <P> <HR> <P> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/ContextStackIterator.html#ContextStackIterator(net.sf.saxon.expr.XPathContext)">ContextStackIterator</A></B>(<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</CODE> <BR> Create an iterator over the stack of XPath dynamic context objects, starting with the top-most stackframe and working down.</TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Method Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/ContextStackIterator.html#hasNext()">hasNext</A></B>()</CODE> <BR> Returns <tt>true</tt> if the iteration has more elements.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace">ContextStackFrame</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../net/sf/saxon/trace/ContextStackIterator.html#next()">next</A></B>()</CODE> <BR> Returns the next element in the iteration.</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/ContextStackIterator.html#remove()">remove</A></B>()</CODE> <BR> Removes from the underlying collection the last element returned by the iterator (optional operation).</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=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TH> </TR> </TABLE> <A NAME="ContextStackIterator(net.sf.saxon.expr.XPathContext)"><!-- --></A><H3> ContextStackIterator</H3> <PRE> public <B>ContextStackIterator</B>(<A HREF="../../../../net/sf/saxon/expr/XPathContext.html" title="interface in net.sf.saxon.expr">XPathContext</A> context)</PRE> <DL> <DD>Create an iterator over the stack of XPath dynamic context objects, starting with the top-most stackframe and working down. The objects returned by this iterator will be of class <A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace"><CODE>ContextStackFrame</CODE></A>. Note that only "major" context objects are considered - those that have a stack frame of their own. <P> <DL> <DT><B>Parameters:</B><DD><CODE>context</CODE> - the current context</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="hasNext()"><!-- --></A><H3> hasNext</H3> <PRE> public boolean <B>hasNext</B>()</PRE> <DL> <DD>Returns <tt>true</tt> if the iteration has more elements. (In other words, returns <tt>true</tt> if <tt>next</tt> would return an element rather than throwing an exception.) <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true#hasNext()" title="class or interface in java.util">hasNext</A></CODE> in interface <CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A><<A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace">ContextStackFrame</A>></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD><tt>true</tt> if the iterator has more elements.</DL> </DD> </DL> <HR> <A NAME="next()"><!-- --></A><H3> next</H3> <PRE> public <A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace">ContextStackFrame</A> <B>next</B>()</PRE> <DL> <DD>Returns the next element in the iteration. Calling this method repeatedly until the <A HREF="../../../../net/sf/saxon/trace/ContextStackIterator.html#hasNext()"><CODE>hasNext()</CODE></A> method returns false will return each element in the underlying collection exactly once. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true#next()" title="class or interface in java.util">next</A></CODE> in interface <CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A><<A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace">ContextStackFrame</A>></CODE></DL> </DD> <DD><DL> <DT><B>Returns:</B><DD>the next element in the iteration, which will always be an instance of <A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace"><CODE>ContextStackFrame</CODE></A> <DT><B>Throws:</B> <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/NoSuchElementException.html?is-external=true" title="class or interface in java.util">NoSuchElementException</A></CODE> - iteration has no more elements.</DL> </DD> </DL> <HR> <A NAME="remove()"><!-- --></A><H3> remove</H3> <PRE> public void <B>remove</B>()</PRE> <DL> <DD>Removes from the underlying collection the last element returned by the iterator (optional operation). <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true#remove()" title="class or interface in java.util">remove</A></CODE> in interface <CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</A><<A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.html" title="class in net.sf.saxon.trace">ContextStackFrame</A>></CODE></DL> </DD> <DD><DL> <DT><B>Throws:</B> <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/UnsupportedOperationException.html?is-external=true" title="class or interface in java.lang">UnsupportedOperationException</A></CODE> - as the <tt>remove</tt> operation is not supported by this Iterator.</DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../net/sf/saxon/trace/ContextStackFrame.VariableEvaluation.html" title="class in net.sf.saxon.trace"><B>PREV CLASS</B></A> <A HREF="../../../../net/sf/saxon/trace/ExpressionPresenter.html" title="class in net.sf.saxon.trace"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?net/sf/saxon/trace/ContextStackIterator.html" target="_top"><B>FRAMES</B></A> <A HREF="ContextStackIterator.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); 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