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org.apache.xpath</FONT>
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Interface ExpressionNode</H2>
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<DT><B>All Superinterfaces:</B> <DD>javax.xml.transform.SourceLocator</DD>
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<DT><PRE>public interface <A HREF="../../../src-html/org/apache/xpath/ExpressionNode.html#line.34"><B>ExpressionNode</B></A><DT>extends javax.xml.transform.SourceLocator</DL>
</PRE>
<P>
A class that implements this interface can construct expressions,
give information about child and parent expressions,
and give the originating source information. A class that implements
this interface does not lay any claim to being directly executable.
<p>Note: This interface should not be considered stable. Only exprSetParent
and exprGetParent can be counted on to work reliably. Work in progress.</p>
<P>
<P>
<HR>
<P>
<!-- ========== METHOD SUMMARY =========== -->
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<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/ExpressionNode.html#exprAddChild(org.apache.xpath.ExpressionNode, int)">exprAddChild</A></B>(<A HREF="../../../org/apache/xpath/ExpressionNode.html" title="interface in org.apache.xpath">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" title="interface in org.apache.xpath">ExpressionNode</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/ExpressionNode.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/ExpressionNode.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" title="interface in org.apache.xpath">ExpressionNode</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/xpath/ExpressionNode.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/ExpressionNode.html#exprSetParent(org.apache.xpath.ExpressionNode)">exprSetParent</A></B>(<A HREF="../../../org/apache/xpath/ExpressionNode.html" title="interface in org.apache.xpath">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>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_javax.xml.transform.SourceLocator"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface javax.xml.transform.SourceLocator</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>getColumnNumber, getLineNumber, getPublicId, getSystemId</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
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<A NAME="exprSetParent(org.apache.xpath.ExpressionNode)"><!-- --></A><H3>
exprSetParent</H3>
<PRE>
void <A HREF="../../../src-html/org/apache/xpath/ExpressionNode.html#line.38"><B>exprSetParent</B></A>(<A HREF="../../../org/apache/xpath/ExpressionNode.html" title="interface in org.apache.xpath">ExpressionNode</A>&nbsp;n)</PRE>
<DL>
<DD>This pair of methods are used to inform the node of its
parent.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="exprGetParent()"><!-- --></A><H3>
exprGetParent</H3>
<PRE>
<A HREF="../../../org/apache/xpath/ExpressionNode.html" title="interface in org.apache.xpath">ExpressionNode</A> <A HREF="../../../src-html/org/apache/xpath/ExpressionNode.html#line.39"><B>exprGetParent</B></A>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="exprAddChild(org.apache.xpath.ExpressionNode, int)"><!-- --></A><H3>
exprAddChild</H3>
<PRE>
void <A HREF="../../../src-html/org/apache/xpath/ExpressionNode.html#line.43"><B>exprAddChild</B></A>(<A HREF="../../../org/apache/xpath/ExpressionNode.html" title="interface in org.apache.xpath">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.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="exprGetChild(int)"><!-- --></A><H3>
exprGetChild</H3>
<PRE>
<A HREF="../../../org/apache/xpath/ExpressionNode.html" title="interface in org.apache.xpath">ExpressionNode</A> <A HREF="../../../src-html/org/apache/xpath/ExpressionNode.html#line.47"><B>exprGetChild</B></A>(int&nbsp;i)</PRE>
<DL>
<DD>This method returns a child node. The children are numbered
from zero, left to right.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="exprGetNumChildren()"><!-- --></A><H3>
exprGetNumChildren</H3>
<PRE>
int <A HREF="../../../src-html/org/apache/xpath/ExpressionNode.html#line.50"><B>exprGetNumChildren</B></A>()</PRE>
<DL>
<DD>Return the number of children the node has.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
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