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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-1881) Need a special interface for Penny (Inspector Gadget)
Date Thu, 03 Mar 2011 17:35:37 GMT
Need a special interface for Penny (Inspector Gadget)

                 Key: PIG-1881
                 URL: https://issues.apache.org/jira/browse/PIG-1881
             Project: Pig
          Issue Type: New Feature
          Components: impl
    Affects Versions: 0.9.0
            Reporter: Alan Gates
            Assignee: Laukik Chitnis
            Priority: Minor
             Fix For: 0.9.0

The proposed Penny tool needs access to Pig's new logical plan in order to inject code into
the the dataflow.  Once it has modified the plan it needs to then be able to hand back that
modified plan and have Pig execute it.

As we don't want to open this functionality up to general users, the proposal is to do this
by subclasses PigServer with a new class that is marked as LimitedPrivate for Penny only.
 This class will provide calls to parse a Pig Latin script and return a logical plan, and
one to take a logical plan and execute it.

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