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https://issues.apache.org/jira/browse/GIRAPH-160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jakob Homan reassigned GIRAPH-160:
----------------------------------

    Assignee: Dionysios Logothetis
    
> Vertex reader that reads adjacency lists with no vertex and edge values 
> associated
> ----------------------------------------------------------------------------------
>
>                 Key: GIRAPH-160
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-160
>             Project: Giraph
>          Issue Type: New Feature
>          Components: lib
>    Affects Versions: 0.1.0
>            Reporter: Dionysios Logothetis
>            Assignee: Dionysios Logothetis
>            Priority: Minor
>              Labels: features
>             Fix For: 0.2.0
>
>         Attachments: GIRAPH-160.patch
>
>
> A very common format of graphs is adjacency lists with no values associated 
> to edges or vertices. For instance a line in the input can be of the type:
> 1 2 3
> which represents a vertex with id 1 that has edges to vertices 2 and 3 with 
> no values associated.
> I've created a vertex reader named AdjacencyListVertexReader which is 
> essentially a copy of the AdjacencyListVertexReader modified to handle this 
> format. It's an abstract class and subclasses can override the 
> defaultVertexValue() and defaultEdgeValue() methods to provide default values 
> for vertices and edges correspondingly (otherwise values are initialized to 
> null).
> I've also created an example subclass.

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