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Xalan-Java 2: Class Variable
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org.apache.xpath.operations</FONT>
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Class Variable</H2>
<PRE>
java.lang.Object
|
+--<A HREF="../../../../org/apache/xpath/Expression.html">org.apache.xpath.Expression</A>
|
+--<B>org.apache.xpath.operations.Variable</B>
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<DT>public class <B>Variable</B><DT>extends <A HREF="../../../../org/apache/xpath/Expression.html">Expression</A></DL>
<P>
The variable reference expression executer.
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<DT><B>See Also: </B><DD><A HREF="../../../../serialized-form.html#org.apache.xpath.operations.Variable">Serialized Form</A></DL>
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<TD><CODE><B><A HREF="../../../../org/apache/xpath/operations/Variable.html#Variable()">Variable</A></B>()</CODE>
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<CODE> <A HREF="../../../../org/apache/xpath/objects/XObject.html">XObject</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xpath/operations/Variable.html#execute(org.apache.xpath.XPathContext)">execute</A></B>(<A HREF="../../../../org/apache/xpath/XPathContext.html">XPathContext</A> xctxt)</CODE>
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Dereference the variable, and return the reference value.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/xpath/operations/Variable.html#setQName(org.apache.xml.utils.QName)">setQName</A></B>(<A HREF="../../../../org/apache/xml/utils/QName.html">QName</A> qname)</CODE>
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Set the qualified name of the variable.</TD>
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<TD><B>Methods inherited from class org.apache.xpath.<A HREF="../../../../org/apache/xpath/Expression.html">Expression</A></B></TD>
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<TD><CODE><A HREF="../../../../org/apache/xpath/Expression.html#assert(boolean, java.lang.String)">assert</A>,
<A HREF="../../../../org/apache/xpath/Expression.html#canTraverseOutsideSubtree()">canTraverseOutsideSubtree</A>,
<A HREF="../../../../org/apache/xpath/Expression.html#error(org.apache.xpath.XPathContext, int, java.lang.Object[])">error</A>,
<A HREF="../../../../org/apache/xpath/Expression.html#setSourceLocator(javax.xml.transform.SourceLocator)">setSourceLocator</A>,
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<TD><CODE>equals,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait</CODE></TD>
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<A NAME="Variable()"><!-- --></A><H3>
Variable</H3>
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public <B>Variable</B>()</PRE>
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<A NAME="setQName(org.apache.xml.utils.QName)"><!-- --></A><H3>
setQName</H3>
<PRE>
public void <B>setQName</B>(<A HREF="../../../../org/apache/xml/utils/QName.html">QName</A> qname)</PRE>
<DL>
<DD>Set the qualified name of the variable.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>qname</CODE> - Must be a non-null reference to a qualified name.</DL>
</DD>
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<A NAME="execute(org.apache.xpath.XPathContext)"><!-- --></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> xctxt)
throws <A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A></PRE>
<DL>
<DD>Dereference the variable, and return the reference value. Note that lazy
evaluation will occur. If a variable within scope is not found, a warning
will be sent to the error listener, and an empty nodeset will be returned.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>xctxt</CODE> - The runtime execution context.<DT><B>Returns:</B><DD>The evaluated variable, or an empty nodeset if not found.<DT><B>Throws:</B><DD><A HREF="../../../../javax/xml/transform/TransformerException.html">TransformerException</A> - <DT><B>Overrides:</B><DD><A HREF="../../../../org/apache/xpath/Expression.html#execute(org.apache.xpath.XPathContext)">execute</A> in class <A HREF="../../../../org/apache/xpath/Expression.html">Expression</A></DL>
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