org.apache.xalan.templates
Class FuncKey

java.lang.Object
  extended by org.apache.xpath.Expression
      extended by org.apache.xpath.functions.Function
          extended by org.apache.xpath.functions.FunctionOneArg
              extended by org.apache.xpath.functions.Function2Args
                  extended by org.apache.xalan.templates.FuncKey
All Implemented Interfaces:
java.io.Serializable, javax.xml.transform.SourceLocator, ExpressionNode, ExpressionOwner, XPathVisitable

public class FuncKey
extends Function2Args

Execute the Key() function.

See Also:
Serialized Form

Field Summary
private static java.lang.Boolean ISTRUE
          Dummy value to be used in usedrefs hashtable
(package private) static long serialVersionUID
           
 
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

serialVersionUID

static final long serialVersionUID
See Also:
Constant Field Values

ISTRUE

private static java.lang.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