WebLogic Server 6.1 API Reference

weblogic.apache.xpath.operations
Class Variable

java.lang.Object
  |
  +--weblogic.apache.xpath.Expression
        |
        +--weblogic.apache.xpath.operations.Variable

public class Variable

extends Expression

The variable reference expression executer.

This class is based on an implementation from the Apache XML Project. In future releases the XML parser, XSLT processor, and associated classes will likely be updated to be based on a later version of the Apache implementations. Since Apache does not guarantee backwards compatibility between versions of their software, we cannot guarantee backwards compatibility of any of the classes contained in the weblogic.apache package or sub-packages.

See Also:

Serialized Form

Field Summary

protected QName

m_qname The qualified name of the variable.

Fields inherited from class weblogic.apache.xpath.Expression

m_slocator

Constructor Summary

Variable()

Method Summary

XObject	execute(XPathContext xctxt) Dereference the variable, and return the reference value.
void	setQName(QName qname) Set the qualified name of the variable.

Methods inherited from class weblogic.apache.xpath.Expression

assert, canTraverseOutsideSubtree, error, setSourceLocator, warn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

m_qname

protected QName m_qname

The qualified name of the variable.

Constructor Detail

Variable

public Variable()

Method Detail

setQName

public void setQName(QName qname)

Set the qualified name of the variable.

Parameters:

qname - Must be a non-null reference to a qualified name.

execute

public XObject execute(XPathContext xctxt)
                throws javax.xml.transform.TransformerException

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.

Parameters:

xctxt - The runtime execution context.

Returns:

The evaluated variable, or an empty nodeset if not found.

Throws:

javax.xml.transform.TransformerException -

Overrides:

execute in class Expression