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Posted to dev@pig.apache.org by "Raghu Angadi (JIRA)" <ji...@apache.org> on 2012/07/17 00:58:35 UTC

[jira] [Created] (PIG-2819) ObjectSerializer should support classloader

Raghu Angadi created PIG-2819:
---------------------------------

             Summary: ObjectSerializer should support classloader
                 Key: PIG-2819
                 URL: https://issues.apache.org/jira/browse/PIG-2819
             Project: Pig
          Issue Type: Improvement
          Components: impl
            Reporter: Raghu Angadi


{ObjectSerializer} is pretty useful and could be used by UDF and other user code.

Currently its limitation is that the class that is being deserialized should be visible to root class loader (ie. should be part of CLASSPATH on the front end). The registered jars are not visibile. This is because {{java.io.ObjectInputStream}} used to deserialize is from the root classloader.

ObjectSerializer should support another method {{deserialize(str, ClassLoader)}}.

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[jira] [Commented] (PIG-2819) ObjectSerializer should support classloader

Posted by "Aniket Mokashi (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/PIG-2819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13443632#comment-13443632 ] 

Aniket Mokashi commented on PIG-2819:
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I discussed this briefly with Julien during the hackathon. This is useful for HCatLoader(ish) use case-(deserializing InputJobInfo). Do you guys have a patch for this?
                
> ObjectSerializer should support classloader
> -------------------------------------------
>
>                 Key: PIG-2819
>                 URL: https://issues.apache.org/jira/browse/PIG-2819
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>            Reporter: Raghu Angadi
>
> {ObjectSerializer} is pretty useful and could be used by UDF and other user code.
> Currently its limitation is that the class that is being deserialized should be visible to root class loader (ie. should be part of CLASSPATH on the front end). The registered jars are not visibile. This is because {{java.io.ObjectInputStream}} used to deserialize is from the root classloader.
> ObjectSerializer should support another method {{deserialize(str, ClassLoader)}}.

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