org.apache.xpath.functions
Class FuncSum

java.lang.Object
  |
  +--org.apache.xpath.Expression
        |
        +--org.apache.xpath.functions.Function
              |
              +--org.apache.xpath.functions.FunctionOneArg
                    |
                    +--org.apache.xpath.functions.FuncSum

public class FuncSum

extends FunctionOneArg

**For advanced use only** Execute the Sum() function.

See Also:

Serialized Form

Constructor Summary

FuncSum()

Method Summary

XObject

execute(XPathContext xctxt) Execute the function.

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

canTraverseOutsideSubtree, checkNumberArgs, fixupVariables, getArg0, setArg

Methods inherited from class org.apache.xpath.Expression

asIterator, asNode, assertion, bool, error, execute, execute, executeCharsToContentHandler, isNodesetExpr, isStableNumber, num, setSourceLocator, warn, xstr

Methods inherited from class java.lang.Object

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

Constructor Detail

FuncSum

public FuncSum()

Method Detail

execute

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

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

Parameters:

xctxt - The current execution context.

Returns:

A valid XObject.

Throws:

javax.xml.transform.TransformerException -

Overrides:

execute in class Function