org.apache.xpath.functions
Class FuncConcat

java.lang.Object
  |
  +--org.apache.xpath.Expression
        |
        +--org.apache.xpath.functions.Function
              |
              +--org.apache.xpath.functions.FunctionOneArg
                    |
                    +--org.apache.xpath.functions.Function2Args
                          |
                          +--org.apache.xpath.functions.Function3Args
                                |
                                +--org.apache.xpath.functions.FunctionMultiArgs
                                      |
                                      +--org.apache.xpath.functions.FuncConcat

public class FuncConcat

extends FunctionMultiArgs

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

See Also:

Serialized Form

Constructor Summary

FuncConcat()

Method Summary

void	checkNumberArgs(int argNum) Check that the number of arguments passed to this function is correct.
XObject	execute(XPathContext xctxt) Execute the function.

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

canTraverseOutsideSubtree, setArg

Methods inherited from class org.apache.xpath.functions.Function3Args

getArg2

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

getArg1

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

getArg0

Methods inherited from class org.apache.xpath.Expression

assert, error, setSourceLocator, warn

Methods inherited from class java.lang.Object

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

Constructor Detail

FuncConcat

public FuncConcat()

Method Detail

execute

public XObject execute(XPathContext xctxt)
                throws TransformerException

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

Parameters:

xctxt - The current execution context.

Returns:

A valid XObject.

Throws:

TransformerException -

Overrides:

execute in class Function

checkNumberArgs

public void checkNumberArgs(int argNum)
                     throws WrongNumberArgsException

Check that the number of arguments passed to this function is correct.

Parameters:

argNum - The number of arguments that is being passed to the function.

Throws:

WrongNumberArgsException -

Overrides:

checkNumberArgs in class FunctionMultiArgs