A UDF should always extend EvalFunc and implement the eval method. Then you just register the jar that contains your UDF, and call the UDF as appropriate. You may find this wiki page helpful: http://wiki.apache.org/pig/UDFManual
D On Tue, Feb 28, 2012 at 8:22 PM, chethan <[email protected]> wrote: > Hi, > > If the UDF that is written not extend any of the Built-in-Functions of PIG, > but still i want to register and use it. > > for example: > > UDF which will do calculation particular to a work which is cannot be > extended from the built-in-functions, because of executing that function > from PIG with all that arguments is not permitting. > package name: myudf > class name: material_formation > function name: func(which will give calculation of specific to the domain) > > so how to register this UDF, whether this is permitted in PIG > If yes than how to do that. > > Thanks & Regards > chethan prakash
