org.apache.xalan.templates
Class FuncKey

java.lang.Object
  org.apache.xpath.Expression
      org.apache.xpath.functions.Function
          org.apache.xpath.functions.FunctionOneArg
              org.apache.xpath.functions.Function2Args
                  org.apache.xalan.templates.FuncKey

All Implemented Interfaces:

ExpressionNode, ExpressionOwner, Serializable, javax.xml.transform.SourceLocator, XPathVisitable

public class FuncKey

extends Function2Args

Execute the Key() function.

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class org.apache.xpath.functions.Function2Args

Field Summary

private static Boolean

ISTRUE Dummy value to be used in usedrefs hashtable

Fields inherited from class org.apache.xpath.functions.Function2Args

Fields inherited from class org.apache.xpath.functions.FunctionOneArg

Fields inherited from class org.apache.xpath.Expression

Constructor Summary

FuncKey()

Method Summary

XObject

execute(XPathContext xctxt) Execute the function.

Methods inherited from class org.apache.xpath.functions.Function2Args

callArgVisitors, canTraverseOutsideSubtree, checkNumberArgs, deepEquals, fixupVariables, getArg1, reportWrongNumberArgs, setArg

Methods inherited from class org.apache.xpath.functions.FunctionOneArg

getArg0, getExpression, setExpression

Methods inherited from class org.apache.xpath.functions.Function

callVisitors, postCompileStep

Methods inherited from class org.apache.xpath.Expression

asIterator, asIteratorRaw, asNode, assertion, bool, error, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isSameClass, isStableNumber, num, warn, xstr

Methods inherited from class java.lang.Object

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

Field Detail

ISTRUE

private static Boolean ISTRUE

Dummy value to be used in usedrefs hashtable

Constructor Detail

FuncKey

public FuncKey()

Method Detail

execute

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

Execute the function. The function must return a valid object.

Overrides:

execute in class Function

Parameters:

xctxt - The current execution context.

Returns:

A valid XObject.

Throws:

javax.xml.transform.TransformerException