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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2141) Allow GSA's Gather to perform this operation in more than one direction
Date Wed, 01 Jul 2015 08:16:04 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14609712#comment-14609712

ASF GitHub Bot commented on FLINK-2141:

Github user andralungu commented on a diff in the pull request:

    --- Diff: docs/libs/gelly_guide.md ---
    @@ -693,6 +693,9 @@ Currently, the following parameters can be specified:
     * <strong>Number of Vertices</strong>: Accessing the total number of vertices
within the iteration. This property can be set using the `setOptNumVertices()` method.
     The number of vertices can then be accessed in the gather, sum and/or apply functions
by using the `getNumberOfVertices()` method. If the option is not set in the configuration,
this method will return -1.
    +* <strong>Neighbor Direction</strong>: By Default values are gathered from
the out neighbors of the Vertex. This can be modified
    --- End diff --
    default without capital D, set direction should be written without capital s and in between
inverted commas (i.e. `setDirection()`)
    It would be nice to have an example in the docs, showing users how to play with this option;
check the number of vertices example for inspiration :)

> Allow GSA's Gather to perform this operation in more than one direction
> -----------------------------------------------------------------------
>                 Key: FLINK-2141
>                 URL: https://issues.apache.org/jira/browse/FLINK-2141
>             Project: Flink
>          Issue Type: New Feature
>          Components: Gelly
>    Affects Versions: 0.9
>            Reporter: Andra Lungu
>            Assignee: Shivani Ghatge
> For the time being, a vertex only gathers information from its in-edges.
> Similarly to the vertex-centric approach, we would like to allow users to gather data
from out and all edges as well. 
> This property should be set using a setDirection() method.  

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