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From "Dmitriy V. Ryaboy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1354) UDFs for dynamic invocation of simple Java methods
Date Mon, 05 Apr 2010 16:28:27 GMT

    [ https://issues.apache.org/jira/browse/PIG-1354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853423#action_12853423
] 

Dmitriy V. Ryaboy commented on PIG-1354:
----------------------------------------

I should mention that this patch applies to Pig 0.6 and 0.7 as well. 

I haven't tested with versions earlier than that, but theoretically there is no reason it
wouldn't apply to all versions of Pig starting with 0.2. 

If someone wants this functionality and doesn't want to wait for 0.8, just change the package
from pig.builtin to piggybank or equivalent, and go generically forth.

> UDFs for dynamic invocation of simple Java methods
> --------------------------------------------------
>
>                 Key: PIG-1354
>                 URL: https://issues.apache.org/jira/browse/PIG-1354
>             Project: Pig
>          Issue Type: New Feature
>    Affects Versions: 0.8.0
>            Reporter: Dmitriy V. Ryaboy
>            Assignee: Dmitriy V. Ryaboy
>             Fix For: 0.8.0
>
>         Attachments: PIG-1354.patch
>
>
> The need to create wrapper UDFs for simple Java functions creates unnecessary work for
Pig users, slows down the development process, and produces a lot of trivial classes. We can
use Java's reflection to allow invoking a number of methods on the fly, dynamically, by creating
a generic UDF to accomplish this.

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