Passing parameter to UDF

[Anil Barfa]

Hi
I am using java UDF with pig. I want pass file name to UDF. I have done it
as follows but it is not working.

PIg script

REGISTER myjar.jar;
DEFINE myfun myjar.PigClass('/home/myfile.txt');

--load input data
InputValue =  LOAD '$input'  AS (val1,val2,val3);

InputWithMeta = FOREACH InputValue GENERATE myfun(val1,val2,val3);


 Java code PigClass.java

class PigClass extends EvalFunc<Tuple>
{
 public PigClass(String strPath)
 {
 }
 public Tuple exec(Tuple input ) throws IOException {
 }
};

I am getting following Error.

*<file MyScript.pig, line 7, column 45> Failed to generate logical plan.
Nested exception: java.lang.RuntimeException: could not instantiate '
myjar.PigClass**' with arguments '[/home/myfile.txt]'*


Thanks and Regards
Anil Barfa