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From "Richard Ding (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1551) Improve dynamic invokers to deal with no-arg methods and array parameters
Date Tue, 24 Aug 2010 19:55:26 GMT

    [ https://issues.apache.org/jira/browse/PIG-1551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12902042#action_12902042

Richard Ding commented on PIG-1551:


I'm fine with arrays of primitive types. I can't think of a Java method that uses an array
of object Long as a parameter.

> Improve dynamic invokers to deal with no-arg methods and array parameters
> -------------------------------------------------------------------------
>                 Key: PIG-1551
>                 URL: https://issues.apache.org/jira/browse/PIG-1551
>             Project: Pig
>          Issue Type: Improvement
>    Affects Versions: 0.8.0
>            Reporter: Dmitriy V. Ryaboy
>            Assignee: Dmitriy V. Ryaboy
>             Fix For: 0.8.0
>         Attachments: PIG-1551.patch, PIG_1551.2.patch, PIG_1551.3.patch
> PIG-1354 introduced a set of UDFs that can be used to dynamically wrap simple Java methods
in a UDF, so that users don't need to create trivial wrappers if they are ok sacrificing some
> This issue is to extend the set of methods that can be wrapped this way to include methods
that do not take any arguments, and methods that take arrays of {int,long,float,double,string}
as arguments. 
> Arrays are expected to be represented by bags in Pig. Notably, this allows users to wrap
statistical functions in o.a.commons.math.stat.StatUtils . 

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