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Xalan-Java 2.7.1: Class Expression
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SUMMARY: &nbsp;INNER&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
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org.apache.xpath</FONT>
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Class Expression</H2>
<PRE>
java.lang.Object
|
+--<B>org.apache.xpath.Expression</B>
</PRE>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../org/apache/xpath/functions/Function.html">Function</A>, <A HREF="../../../org/apache/xpath/patterns/NodeTest.html">NodeTest</A>, <A HREF="../../../org/apache/xpath/operations/Operation.html">Operation</A>, <A HREF="../../../org/apache/xpath/operations/UnaryOperation.html">UnaryOperation</A>, <A HREF="../../../org/apache/xpath/patterns/UnionPattern.html">UnionPattern</A>, <A HREF="../../../org/apache/xpath/operations/Variable.html">Variable</A>, <A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A></DD>
</DL>
<HR>
<DL>
<DT>public abstract class <B>Expression</B><DT>extends java.lang.Object<DT>implements java.io.Serializable, <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A>, <A HREF="../../../org/apache/xpath/XPathVisitable.html">XPathVisitable</A></DL>
<P>
This abstract class serves as the base for all expression objects. An
Expression can be executed to return a <A HREF="../../../org/apache/xpath/objects/XObject.html"><CODE>XObject</CODE></A>,
normally has a location within a document or DOM, can send error and warning
events, and normally do not hold state and are meant to be immutable once
construction has completed. An exception to the immutibility rule is iterators
and walkers, which must be cloned in order to be used -- the original must
still be immutable.
<P>
<DL>
<DT><B>See Also: </B><DD><A HREF="../../../serialized-form.html#org.apache.xpath.Expression">Serialized Form</A></DL>
<HR>
<P>
<!-- ======== INNER CLASS SUMMARY ======== -->
<!-- =========== FIELD SUMMARY =========== -->
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=2><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#Expression()">Expression</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=2><FONT SIZE="+2">
<B>Method Summary</B></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xml/dtm/DTMIterator.html">DTMIterator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#asIterator(org.apache.xpath.XPathContext, int)">asIterator</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;contextNode)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given an select expression and a context, evaluate the XPath
and return the resulting iterator.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xml/dtm/DTMIterator.html">DTMIterator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#asIteratorRaw(org.apache.xpath.XPathContext, int)">asIteratorRaw</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;contextNode)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given an select expression and a context, evaluate the XPath
and return the resulting iterator, but do not clone.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#asNode(org.apache.xpath.XPathContext)">asNode</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the first node out of the nodeset, if this expression is
a nodeset expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#assertion(boolean, java.lang.String)">assertion</A></B>(boolean&nbsp;b,
java.lang.String&nbsp;msg)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tell the user of an assertion error, and probably throw an
exception.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#bool(org.apache.xpath.XPathContext)">bool</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Evaluate expression to a boolean.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#canTraverseOutsideSubtree()">canTraverseOutsideSubtree</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tell if this expression or it's subexpressions can traverse outside
the current subtree.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>abstract &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#deepEquals(org.apache.xpath.Expression)">deepEquals</A></B>(<A HREF="../../../org/apache/xpath/Expression.html">Expression</A>&nbsp;expr)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Compare this object with another object and see
if they are equal, include the sub heararchy.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#error(org.apache.xpath.XPathContext, java.lang.String, java.lang.Object[])">error</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
java.lang.String&nbsp;msg,
java.lang.Object[]&nbsp;args)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tell the user of an error, and probably throw an
exception.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>abstract &nbsp;<A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#execute(org.apache.xpath.XPathContext)">execute</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Execute an expression in the XPath runtime context, and return the
result of the expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#execute(org.apache.xpath.XPathContext, boolean)">execute</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
boolean&nbsp;destructiveOK)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Execute an expression in the XPath runtime context, and return the
result of the expression, but tell that a "safe" object doesn't have
to be returned.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#execute(org.apache.xpath.XPathContext, int)">execute</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;currentNode)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Execute an expression in the XPath runtime context, and return the
result of the expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#execute(org.apache.xpath.XPathContext, int, org.apache.xml.dtm.DTM, int)">execute</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;currentNode,
<A HREF="../../../org/apache/xml/dtm/DTM.html">DTM</A>&nbsp;dtm,
int&nbsp;expType)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Execute an expression in the XPath runtime context, and return the
result of the expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#executeCharsToContentHandler(org.apache.xpath.XPathContext, org.xml.sax.ContentHandler)">executeCharsToContentHandler</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
<A HREF="../../../org/xml/sax/ContentHandler.html">ContentHandler</A>&nbsp;handler)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Execute an expression in the XPath runtime context, and return the
result of the expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#exprAddChild(org.apache.xpath.ExpressionNode, int)">exprAddChild</A></B>(<A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A>&nbsp;n,
int&nbsp;i)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This method tells the node to add its argument to the node's
list of children.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#exprGetChild(int)">exprGetChild</A></B>(int&nbsp;i)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This method returns a child node.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#exprGetNumChildren()">exprGetNumChildren</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the number of children the node has.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#exprGetParent()">exprGetParent</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#exprSetParent(org.apache.xpath.ExpressionNode)">exprSetParent</A></B>(<A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A>&nbsp;n)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This pair of methods are used to inform the node of its
parent.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>abstract &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#fixupVariables(java.util.Vector, int)">fixupVariables</A></B>(java.util.Vector&nbsp;vars,
int&nbsp;globalsSize)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This function is used to fixup variables from QNames to stack frame
indexes at stylesheet build time.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#getColumnNumber()">getColumnNumber</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the character position where the current document event ends.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#getExpressionOwner()">getExpressionOwner</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the first non-Expression parent of this node.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#getLineNumber()">getLineNumber</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the line number where the current document event ends.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#getPublicId()">getPublicId</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the public identifier for the current document event.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#getSystemId()">getSystemId</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the system identifier for the current document event.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#isNodesetExpr()">isNodesetExpr</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tell if the expression is a nodeset expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#isStableNumber()">isStableNumber</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tell if this expression returns a stable number that will not change during
iterations within the expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#num(org.apache.xpath.XPathContext)">num</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Evaluate expression to a number.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#warn(org.apache.xpath.XPathContext, java.lang.String, java.lang.Object[])">warn</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
java.lang.String&nbsp;msg,
java.lang.Object[]&nbsp;args)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Warn the user of an problem.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/apache/xml/utils/XMLString.html">XMLString</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/Expression.html#xstr(org.apache.xpath.XPathContext)">xstr</A></B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cast result object to a string.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.Object</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>equals,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ============ FIELD DETAIL =========== -->
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="Expression()"><!-- --></A><H3>
Expression</H3>
<PRE>
public <B>Expression</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="canTraverseOutsideSubtree()"><!-- --></A><H3>
canTraverseOutsideSubtree</H3>
<PRE>
public boolean <B>canTraverseOutsideSubtree</B>()</PRE>
<DL>
<DD>Tell if this expression or it's subexpressions can traverse outside
the current subtree.<DD><DL>
<DT><B>Returns:</B><DD>true if traversal outside the context node's subtree can occur.</DL>
</DD>
</DL>
<HR>
<A NAME="execute(org.apache.xpath.XPathContext, int)"><!-- --></A><H3>
execute</H3>
<PRE>
public <A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A> <B>execute</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;currentNode)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Execute an expression in the XPath runtime context, and return the
result of the expression.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DD><CODE>currentNode</CODE> - The currentNode.<DT><B>Returns:</B><DD>The result of the expression in the form of a <code>XObject</code>.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if a runtime exception
occurs.</DL>
</DD>
</DL>
<HR>
<A NAME="execute(org.apache.xpath.XPathContext, int, org.apache.xml.dtm.DTM, int)"><!-- --></A><H3>
execute</H3>
<PRE>
public <A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A> <B>execute</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;currentNode,
<A HREF="../../../org/apache/xml/dtm/DTM.html">DTM</A>&nbsp;dtm,
int&nbsp;expType)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Execute an expression in the XPath runtime context, and return the
result of the expression.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DD><CODE>currentNode</CODE> - The currentNode.<DD><CODE>dtm</CODE> - The DTM of the current node.<DD><CODE>expType</CODE> - The expanded type ID of the current node.<DT><B>Returns:</B><DD>The result of the expression in the form of a <code>XObject</code>.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if a runtime exception
occurs.</DL>
</DD>
</DL>
<HR>
<A NAME="execute(org.apache.xpath.XPathContext)"><!-- --></A><H3>
execute</H3>
<PRE>
public abstract <A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A> <B>execute</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Execute an expression in the XPath runtime context, and return the
result of the expression.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DT><B>Returns:</B><DD>The result of the expression in the form of a <code>XObject</code>.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if a runtime exception
occurs.</DL>
</DD>
</DL>
<HR>
<A NAME="execute(org.apache.xpath.XPathContext, boolean)"><!-- --></A><H3>
execute</H3>
<PRE>
public <A HREF="../../../org/apache/xpath/objects/XObject.html">XObject</A> <B>execute</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
boolean&nbsp;destructiveOK)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Execute an expression in the XPath runtime context, and return the
result of the expression, but tell that a "safe" object doesn't have
to be returned. The default implementation just calls execute(xctxt).<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DD><CODE>destructiveOK</CODE> - true if a "safe" object doesn't need to be returned.<DT><B>Returns:</B><DD>The result of the expression in the form of a <code>XObject</code>.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if a runtime exception
occurs.</DL>
</DD>
</DL>
<HR>
<A NAME="num(org.apache.xpath.XPathContext)"><!-- --></A><H3>
num</H3>
<PRE>
public double <B>num</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Evaluate expression to a number.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DT><B>Returns:</B><DD>The expression evaluated as a double.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="bool(org.apache.xpath.XPathContext)"><!-- --></A><H3>
bool</H3>
<PRE>
public boolean <B>bool</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Evaluate expression to a boolean.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DT><B>Returns:</B><DD>false<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="xstr(org.apache.xpath.XPathContext)"><!-- --></A><H3>
xstr</H3>
<PRE>
public <A HREF="../../../org/apache/xml/utils/XMLString.html">XMLString</A> <B>xstr</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Cast result object to a string.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DT><B>Returns:</B><DD>The string this wraps or the empty string if null<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="isNodesetExpr()"><!-- --></A><H3>
isNodesetExpr</H3>
<PRE>
public boolean <B>isNodesetExpr</B>()</PRE>
<DL>
<DD>Tell if the expression is a nodeset expression. In other words, tell
if you can execute <A HREF="../../../org/apache/xpath/Expression.html#asNode(org.apache.xpath.XPathContext)">asNode</A> without an exception.<DD><DL>
<DT><B>Returns:</B><DD>true if the expression can be represented as a nodeset.</DL>
</DD>
</DL>
<HR>
<A NAME="asNode(org.apache.xpath.XPathContext)"><!-- --></A><H3>
asNode</H3>
<PRE>
public int <B>asNode</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Return the first node out of the nodeset, if this expression is
a nodeset expression.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DT><B>Returns:</B><DD>the first node out of the nodeset, or DTM.NULL.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="asIterator(org.apache.xpath.XPathContext, int)"><!-- --></A><H3>
asIterator</H3>
<PRE>
public <A HREF="../../../org/apache/xml/dtm/DTMIterator.html">DTMIterator</A> <B>asIterator</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;contextNode)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Given an select expression and a context, evaluate the XPath
and return the resulting iterator.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The execution context.<DD><CODE>contextNode</CODE> - The node that "." expresses.<DT><B>Returns:</B><DD>A valid DTMIterator.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - thrown if the active ProblemListener decides
the error condition is severe enough to halt processing.<DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;<DT><B>Usage:</B><DD><i><font size="-1" color="#0000FF"> **Experimental**</font></i></DD>
</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="asIteratorRaw(org.apache.xpath.XPathContext, int)"><!-- --></A><H3>
asIteratorRaw</H3>
<PRE>
public <A HREF="../../../org/apache/xml/dtm/DTMIterator.html">DTMIterator</A> <B>asIteratorRaw</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
int&nbsp;contextNode)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Given an select expression and a context, evaluate the XPath
and return the resulting iterator, but do not clone.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The execution context.<DD><CODE>contextNode</CODE> - The node that "." expresses.<DT><B>Returns:</B><DD>A valid DTMIterator.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - thrown if the active ProblemListener decides
the error condition is severe enough to halt processing.<DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;<DT><B>Usage:</B><DD><i><font size="-1" color="#0000FF"> **Experimental**</font></i></DD>
</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="executeCharsToContentHandler(org.apache.xpath.XPathContext, org.xml.sax.ContentHandler)"><!-- --></A><H3>
executeCharsToContentHandler</H3>
<PRE>
public void <B>executeCharsToContentHandler</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
<A HREF="../../../org/xml/sax/ContentHandler.html">ContentHandler</A>&nbsp;handler)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A>,
<A HREF="../../../org/xml/sax/SAXException.html">SAXException</A></PRE>
<DL>
<DD>Execute an expression in the XPath runtime context, and return the
result of the expression.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.
NEEDSDOC @param handler<DT><B>Returns:</B><DD>The result of the expression in the form of a <code>XObject</code>.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if a runtime exception
occurs.<DD><A HREF="../../../org/xml/sax/SAXException.html">SAXException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="isStableNumber()"><!-- --></A><H3>
isStableNumber</H3>
<PRE>
public boolean <B>isStableNumber</B>()</PRE>
<DL>
<DD>Tell if this expression returns a stable number that will not change during
iterations within the expression. This is used to determine if a proximity
position predicate can indicate that no more searching has to occur.<DD><DL>
<DT><B>Returns:</B><DD>true if the expression represents a stable number.</DL>
</DD>
</DL>
<HR>
<A NAME="fixupVariables(java.util.Vector, int)"><!-- --></A><H3>
fixupVariables</H3>
<PRE>
public abstract void <B>fixupVariables</B>(java.util.Vector&nbsp;vars,
int&nbsp;globalsSize)</PRE>
<DL>
<DD>This function is used to fixup variables from QNames to stack frame
indexes at stylesheet build time.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>vars</CODE> - List of QNames that correspond to variables. This list
should be searched backwards for the first qualified name that
corresponds to the variable reference qname. The position of the
QName in the vector from the start of the vector will be its position
in the stack frame (but variables above the globalsTop value will need
to be offset to the current stack frame).
NEEDSDOC @param globalsSize</DL>
</DD>
</DL>
<HR>
<A NAME="deepEquals(org.apache.xpath.Expression)"><!-- --></A><H3>
deepEquals</H3>
<PRE>
public abstract boolean <B>deepEquals</B>(<A HREF="../../../org/apache/xpath/Expression.html">Expression</A>&nbsp;expr)</PRE>
<DL>
<DD>Compare this object with another object and see
if they are equal, include the sub heararchy.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>expr</CODE> - Another expression object.<DT><B>Returns:</B><DD>true if this objects class and the expr
object's class are the same, and the data contained
within both objects are considered equal.</DL>
</DD>
</DL>
<HR>
<A NAME="warn(org.apache.xpath.XPathContext, java.lang.String, java.lang.Object[])"><!-- --></A><H3>
warn</H3>
<PRE>
public void <B>warn</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
java.lang.String&nbsp;msg,
java.lang.Object[]&nbsp;args)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Warn the user of an problem.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DD><CODE>msg</CODE> - An error msgkey that corresponds to one of the conststants found
in <A HREF="../../../org/apache/xpath/res/XPATHErrorResources.html"><CODE>XPATHErrorResources</CODE></A>, which is
a key for a format string.<DD><CODE>args</CODE> - An array of arguments represented in the format string, which
may be null.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if the current ErrorListoner determines to
throw an exception.<DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="assertion(boolean, java.lang.String)"><!-- --></A><H3>
assertion</H3>
<PRE>
public void <B>assertion</B>(boolean&nbsp;b,
java.lang.String&nbsp;msg)</PRE>
<DL>
<DD>Tell the user of an assertion error, and probably throw an
exception.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>b</CODE> - If false, a runtime exception will be thrown.<DD><CODE>msg</CODE> - The assertion message, which should be informative.<DT><B>Throws:</B><DD>java.lang.RuntimeException - if the b argument is false.<DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="error(org.apache.xpath.XPathContext, java.lang.String, java.lang.Object[])"><!-- --></A><H3>
error</H3>
<PRE>
public void <B>error</B>(<A HREF="../../../org/apache/xpath/XPathContext.html">XPathContext</A>&nbsp;xctxt,
java.lang.String&nbsp;msg,
java.lang.Object[]&nbsp;args)
throws <A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Tell the user of an error, and probably throw an
exception.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The XPath runtime context.<DD><CODE>msg</CODE> - An error msgkey that corresponds to one of the constants found
in <A HREF="../../../org/apache/xpath/res/XPATHErrorResources.html"><CODE>XPATHErrorResources</CODE></A>, which is
a key for a format string.<DD><CODE>args</CODE> - An array of arguments represented in the format string, which
may be null.<DT><B>Throws:</B><DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - if the current ErrorListoner determines to
throw an exception.<DD><A HREF="../../../javax/xml/transform/TransformerException.html">TransformerException</A> - &nbsp;</DL>
</DD>
</DL>
<HR>
<A NAME="getExpressionOwner()"><!-- --></A><H3>
getExpressionOwner</H3>
<PRE>
public <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A> <B>getExpressionOwner</B>()</PRE>
<DL>
<DD>Get the first non-Expression parent of this node.<DD><DL>
<DT><B>Returns:</B><DD>null or first ancestor that is not an Expression.</DL>
</DD>
</DL>
<HR>
<A NAME="exprSetParent(org.apache.xpath.ExpressionNode)"><!-- --></A><H3>
exprSetParent</H3>
<PRE>
public void <B>exprSetParent</B>(<A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A>&nbsp;n)</PRE>
<DL>
<DD>This pair of methods are used to inform the node of its
parent.<DD><DL>
<DT><B>Specified by: </B><DD><A HREF="../../../org/apache/xpath/ExpressionNode.html#exprSetParent(org.apache.xpath.ExpressionNode)">exprSetParent</A> in interface <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></DL>
</DD>
</DL>
<HR>
<A NAME="exprGetParent()"><!-- --></A><H3>
exprGetParent</H3>
<PRE>
public <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A> <B>exprGetParent</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by: </B><DD><A HREF="../../../org/apache/xpath/ExpressionNode.html#exprGetParent()">exprGetParent</A> in interface <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></DL>
</DD>
</DL>
<HR>
<A NAME="exprAddChild(org.apache.xpath.ExpressionNode, int)"><!-- --></A><H3>
exprAddChild</H3>
<PRE>
public void <B>exprAddChild</B>(<A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A>&nbsp;n,
int&nbsp;i)</PRE>
<DL>
<DD>This method tells the node to add its argument to the node's
list of children.<DD><DL>
<DT><B>Specified by: </B><DD><A HREF="../../../org/apache/xpath/ExpressionNode.html#exprAddChild(org.apache.xpath.ExpressionNode, int)">exprAddChild</A> in interface <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></DL>
</DD>
</DL>
<HR>
<A NAME="exprGetChild(int)"><!-- --></A><H3>
exprGetChild</H3>
<PRE>
public <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A> <B>exprGetChild</B>(int&nbsp;i)</PRE>
<DL>
<DD>This method returns a child node. The children are numbered
from zero, left to right.<DD><DL>
<DT><B>Specified by: </B><DD><A HREF="../../../org/apache/xpath/ExpressionNode.html#exprGetChild(int)">exprGetChild</A> in interface <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></DL>
</DD>
</DL>
<HR>
<A NAME="exprGetNumChildren()"><!-- --></A><H3>
exprGetNumChildren</H3>
<PRE>
public int <B>exprGetNumChildren</B>()</PRE>
<DL>
<DD>Return the number of children the node has.<DD><DL>
<DT><B>Specified by: </B><DD><A HREF="../../../org/apache/xpath/ExpressionNode.html#exprGetNumChildren()">exprGetNumChildren</A> in interface <A HREF="../../../org/apache/xpath/ExpressionNode.html">ExpressionNode</A></DL>
</DD>
</DL>
<HR>
<A NAME="getPublicId()"><!-- --></A><H3>
getPublicId</H3>
<PRE>
public java.lang.String <B>getPublicId</B>()</PRE>
<DL>
<DD>Return the public identifier for the current document event.
<p>The return value is the public identifier of the document
entity or of the external parsed entity in which the markup that
triggered the event appears.</p><DD><DL>
<DT><B>Returns:</B><DD>A string containing the public identifier, or
null if none is available.<DT><B>See Also: </B><DD><A HREF="../../../org/apache/xpath/Expression.html#getSystemId()"><CODE>getSystemId()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getSystemId()"><!-- --></A><H3>
getSystemId</H3>
<PRE>
public java.lang.String <B>getSystemId</B>()</PRE>
<DL>
<DD>Return the system identifier for the current document event.
<p>The return value is the system identifier of the document
entity or of the external parsed entity in which the markup that
triggered the event appears.</p>
<p>If the system identifier is a URL, the parser must resolve it
fully before passing it to the application.</p><DD><DL>
<DT><B>Returns:</B><DD>A string containing the system identifier, or null
if none is available.<DT><B>See Also: </B><DD><A HREF="../../../org/apache/xpath/Expression.html#getPublicId()"><CODE>getPublicId()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getLineNumber()"><!-- --></A><H3>
getLineNumber</H3>
<PRE>
public int <B>getLineNumber</B>()</PRE>
<DL>
<DD>Return the line number where the current document event ends.
<p><strong>Warning:</strong> The return value from the method
is intended only as an approximation for the sake of error
reporting; it is not intended to provide sufficient information
to edit the character content of the original XML document.</p>
<p>The return value is an approximation of the line number
in the document entity or external parsed entity where the
markup that triggered the event appears.</p><DD><DL>
<DT><B>Returns:</B><DD>The line number, or -1 if none is available.<DT><B>See Also: </B><DD><A HREF="../../../org/apache/xpath/Expression.html#getColumnNumber()"><CODE>getColumnNumber()</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getColumnNumber()"><!-- --></A><H3>
getColumnNumber</H3>
<PRE>
public int <B>getColumnNumber</B>()</PRE>
<DL>
<DD>Return the character position where the current document event ends.
<p><strong>Warning:</strong> The return value from the method
is intended only as an approximation for the sake of error
reporting; it is not intended to provide sufficient information
to edit the character content of the original XML document.</p>
<p>The return value is an approximation of the column number
in the document entity or external parsed entity where the
markup that triggered the event appears.</p><DD><DL>
<DT><B>Returns:</B><DD>The column number, or -1 if none is available.<DT><B>See Also: </B><DD><A HREF="../../../org/apache/xpath/Expression.html#getLineNumber()"><CODE>getLineNumber()</CODE></A></DL>
</DD>
</DL>
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