org.apache.xpath.functions
Class FuncSubstring

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.FuncSubstring

public class FuncSubstring
extends Function3Args

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


Constructor Summary
FuncSubstring()
          **For advanced use only**  
 
Method Summary
 void checkNumberArgs(int argNum)
          **For advanced use only**  
 XObject execute(XPathContext xctxt)
          **For advanced use only** Execute the function.
 
Methods inherited from class org.apache.xpath.functions.Function3Args
getArg2, setArg
 
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, warn
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

FuncSubstring

public FuncSubstring()
Method Detail

execute

public XObject execute(XPathContext xctxt)
                throws SAXException
**For advanced use only** Execute the function. The function must return a valid object.
Parameters:
xctxt - The current execution context.
Returns:
A valid XObject.
Overrides:
execute in class Function

checkNumberArgs

public void checkNumberArgs(int argNum)
                     throws WrongNumberArgsException
Overrides:
checkNumberArgs in class Function3Args


Copyright © 2000 Apache XML Project. All Rights Reserved.