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https://issues.apache.org/jira/browse/PIG-1354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12901584#action_12901584
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Dmitriy V. Ryaboy commented on PIG-1354:
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Olga,
There is a follow-up ticket here: https://issues.apache.org/jira/browse/PIG-1551
If that gets committed, I have a pretty detailed explanation of how to use the
stuff in
http://squarecog.wordpress.com/2010/08/20/upcoming-features-in-pig-0-8-dynamic-invokers/
(happy to put the link in release notes, or just paste the whole post).
> 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, PIG-1354.patch, 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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