Roman K commented on GIRAPH-141:

Sorry for taking your time, but I am not sure I understand you correctly.
Are you talking about Avery's idea, to sub-class the BasicVertex class with 
some BasicMultiVertexClass and etc. or about introducing some MultiValueEdge 
class which implements Writable and could be "hidden" inside the existing 
simple graph structure?
> mulitgraph support in giraph
> ----------------------------
>                 Key: GIRAPH-141
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-141
>             Project: Giraph
>          Issue Type: Improvement
>          Components: graph
>            Reporter: André Kelpe
> The current vertex API only supports simple graphs, meaning that there can 
> only ever be one edge between two vertices. Many graphs like the road network 
> are in fact multigraphs, where many edges can connect two vertices at the 
> same time.
> Support for this could be added by introducing an Iterator<EdgeWritable> 
> getEdgeValue() or a similar construct. Maybe introducing a slim object like a 
> Connector between the edge and the vertex is also a good idea, so that you 
> could do something like:
> {code} 
> for (final Connector<EdgeWritable, VertexWritable> conn: getEdgeValues(){
>      final EdgeWritable edge = conn.getEdge();
>      final VertexWritable otherVertex = conn.getOther();
>      doInterestingStuff(otherVertex);
>      doMoreInterestingStuff(edge);
> }
> {code} 

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: 
For more information on JIRA, see: http://www.atlassian.com/software/jira

Reply via email to