UDF function help

[jamal sasha <ja...@gmail.com>]

> I am trying to learn both java and pig programming.. So basically.. not
an ideal combination but things are looking good.. but I am not able to
solve this out..
>
> In my local environment I dont have pig libraries... but on the
cluster... YES!
>
> So.. when I do
>
>      import org.apache.pig.EvalFunc;
>
> It is always red lined.. for obvious reasons..
>
> So basically, do i just ignore it and just create a jar file??
>
> or do i do a local download of pig.. import libraries.. write a code..
and then create a jar file.. and then run it?
>
> Can anyone give me step by step instructions to write a udf..
>
> Basically not on writing udf but how to tackle these issues..Like
>
> 1)    Import libraries (ignore the red lines)
>
> 2)    Write the code..
>
> 3)    Package jar
>
> 4)    Register udf on pig script
>
> 5)    Run the script
>
> It would be awesome if someone can fill in the technical details by
filling the above steps using an example.. wrt my original query which is
how do I import and package udf function (assuming I am able to write the
udf function)
>
> thanks

Re: UDF function help

[pablomar <pa...@gmail.com>]

no need to do a complete pig installation just to compile. You just need
the Pig's jar file. In my case:  pig-0.9.2-cdh4.0.1.jar (located under the
pig installation folder)
and add it to your project classpath


On Wed, Oct 24, 2012 at 3:44 PM, jamal sasha <ja...@gmail.com> wrote:

> > I am trying to learn both java and pig programming.. So basically.. not
> an ideal combination but things are looking good.. but I am not able to
> solve this out..
> >
> > In my local environment I dont have pig libraries... but on the
> cluster... YES!
> >
> > So.. when I do
> >
> >      import org.apache.pig.EvalFunc;
> >
> > It is always red lined.. for obvious reasons..
> >
> > So basically, do i just ignore it and just create a jar file??
> >
> > or do i do a local download of pig.. import libraries.. write a code..
> and then create a jar file.. and then run it?
> >
> > Can anyone give me step by step instructions to write a udf..
> >
> > Basically not on writing udf but how to tackle these issues..Like
> >
> > 1)    Import libraries (ignore the red lines)
> >
> > 2)    Write the code..
> >
> > 3)    Package jar
> >
> > 4)    Register udf on pig script
> >
> > 5)    Run the script
> >
> > It would be awesome if someone can fill in the technical details by
> filling the above steps using an example.. wrt my original query which is
> how do I import and package udf function (assuming I am able to write the
> udf function)
> >
> > thanks
>