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From "Pradeep Kamath (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1072) ReversibleLoadStoreFunc interface should be removed to enable different load and store implementation classes to be used in a reversible manner
Date Thu, 05 Nov 2009 23:43:33 GMT

    [ https://issues.apache.org/jira/browse/PIG-1072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12774135#action_12774135
] 

Pradeep Kamath commented on PIG-1072:
-------------------------------------

The requirement that to be reversible the load and store func must be the same class seems
restricting.  While we're reworking the APIs should we add a call like:
{code}
Class getReversibleLoader()
{code}
to the StoreFunc interface.  Then the store function can return itself if it is also the load
function, it can return null if it has no reversible loader, or it can return another class
(like in the Zebra case).

This will effect Multi Query optimization and streaming optimization currently built around
ReversibleLoadStoreFunc


> ReversibleLoadStoreFunc interface should be removed to enable different load and store
implementation classes to be used in a reversible manner
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-1072
>                 URL: https://issues.apache.org/jira/browse/PIG-1072
>             Project: Pig
>          Issue Type: Sub-task
>            Reporter: Pradeep Kamath
>


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