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https://issues.apache.org/jira/browse/FALCON-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13884053#comment-13884053
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Shwetha G S commented on FALCON-259:
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1. Primitive.validate() returns null if there are no errors. But
CompilationException(Iterable<Message>) doesn't handle null
2. CompilationException should probably expose all messages as is instead of
forming detailedMessage. Its easier for clients to work with Message directly
3. Does Primitive.doOptimize() and doCompile() require Conf param? Primitive
contains conf already. doOptimize() can probably return another optimised
Primitive if required
4. Update comment as Partition Transform can create multiple outputs
+ * Each Transform by default requires one or more input data sets
+ * and produces a single output data set.
> Design Transformation Interface
> -------------------------------
>
> Key: FALCON-259
> URL: https://issues.apache.org/jira/browse/FALCON-259
> Project: Falcon
> Issue Type: Sub-task
> Components: designer
> Affects Versions: 0.5
> Reporter: Srikanth Sundarrajan
> Assignee: Srikanth Sundarrajan
> Attachments: FALCON-259-v2.patch, FALCON-259.patch
>
>
> The foundation block in the pipeline designer is the transformation. All
> primitives of the process are either defined as a transformation or an
> action. Transformation is a data flow primitive while action could either be
> a general purpose processing primitive or a control flow.
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