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https://issues.apache.org/jira/browse/CRUNCH-58?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453601#comment-13453601
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Josh Wills commented on CRUNCH-58:
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So cool. My only quibble is with the getPipeline/getName/write methods on
PObject as opposed to returning a reference to the backing PCollection-- what
was the use case you had in mind?
> Implement PObject in Crunch/Scrunch
> -----------------------------------
>
> Key: CRUNCH-58
> URL: https://issues.apache.org/jira/browse/CRUNCH-58
> Project: Crunch
> Issue Type: New Feature
> Affects Versions: 0.3.0
> Reporter: Kiyan Ahmadizadeh
> Assignee: Kiyan Ahmadizadeh
> Attachments: CRUNCH-58.patch
>
>
> FlumeJava has the concept of a PObject<T>, a container for a singleton of
> type T. It is meant represent the result of a distributed computation that
> yields a singleton value (for example max, min, and length methods on
> PCollection<T>). Generally speaking, the result of any computation that
> combines/reduces a PCollection into a singleton value could be represented by
> a PObject.
> Like PCollection, a PObject defers distributed computation until its value is
> actually used.
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