[jira] [Commented] (PIG-1824) Support import modules in Jython UDF

["Woody Anderson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-1824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13012608#comment-13012608 ] 

Woody Anderson commented on PIG-1824:
-------------------------------------

this code originally written cannot work:
{code}
import re
@outputSchema("y:bag{t:tuple(word:chararray)}")
def strsplittobag(content,regex):
        return re.compile(regex).split(content
{code}

the reason is that split returns a list of strings, not a list of tuples, and jythonfunction casting will fail. i've created a ticket for these kinds of 'obvious' type coercions: https://issues.apache.org/jira/browse/PIG-1942

and, as such, i am going to change the code for this ticket to something that will work when 'import re' works.

> Support import modules in Jython UDF
> ------------------------------------
>
>                 Key: PIG-1824
>                 URL: https://issues.apache.org/jira/browse/PIG-1824
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Richard Ding
>            Assignee: Woody Anderson
>             Fix For: 0.10
>
>
> Currently, Jython UDF script doesn't support Jython import statement as in the following example:
> {code}
> #!/usr/bin/python
> import re
> @outputSchema("y:bag{t:tuple(word:chararray)}")
> def strsplittobag(content,regex):
>         return re.compile(regex).split(content)
> {code}
> Can Pig automatically locate the Jython module file and ship it to the backend? Or should we add a ship clause to let user explicitly specify the module to ship? 

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