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From "Thomas Jungblut (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-579) Add multiple aggregators
Date Tue, 22 May 2012 11:00:41 GMT

    [ https://issues.apache.org/jira/browse/HAMA-579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13280876#comment-13280876

Thomas Jungblut commented on HAMA-579:

Just a note to myself, I should overload the setAggregatorClass in GraphJob since it will
result in warnings if a single class is casted to a generic array.
> Add multiple aggregators
> ------------------------
>                 Key: HAMA-579
>                 URL: https://issues.apache.org/jira/browse/HAMA-579
>             Project: Hama
>          Issue Type: Improvement
>          Components: graph
>    Affects Versions: 0.5.0
>            Reporter: Thomas Jungblut
>            Assignee: Thomas Jungblut
>             Fix For: 0.5.0
>         Attachments: HAMA-579_1.patch
> Very easy to implement, on client side we use varargs feature to set multiple classes.
On job side we extend the single aggregator to a list. During the computation it will just
loop over the list and execute the things it did.
> We have to assign the messaging of the values an index of the aggregator list.

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