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From "Shaik Idris Ali (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FALCON-259) Design Transformation Interface
Date Wed, 22 Jan 2014 11:06:20 GMT

    [ https://issues.apache.org/jira/browse/FALCON-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13878526#comment-13878526
] 

Shaik Idris Ali commented on FALCON-259:
----------------------------------------

I was trying to understand bigger picture, and here are few doubts/comments:

1. validate and compile are at primitive level, I thought the compilation is at project level,
like a set of primitives or transforms tied together.
2.  Under message context is an object, using in toString make sense?
3. In validation,   error = true;
+                    break; I think its better we show all the error messages in a single
compile.
4. doCompile is protected but all other are public?
5. Transform(List<RelationalData> inData, RelationalData outData), return type is single
data, was wondering how partition will be implemented.
6.  public int hashCode() {
+        return version;
+    }
can be version.hashcode()?
7.In VersionedStoraged
 InputStream open(@Nonnull String namespace, @Nonnull String entity, int version) should'nt
this be ?
 InputStream open(@Nonnull String namespace, @Nonnull String entity, Version version)




> 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.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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