Re: [jgrapht-users] Getting edges for a vertex

[Santiago T. <sti...@gm...>]

Thank you Ernst,

I am extending DefaultEdge, but not overloading any method. Now it works
fine!

Santi

2012/8/17 hnr...@gr... <hnr...@gr...>

> Hi,
>
> edge.getTarget() is protected. Are you overloading?
>
> For general purposes use graph.getEdgeTarget(edge). jgrapht stores the
> structure in the graph, not in the vertices/edges. This makes it possible
> to use an arbitrary object as a vertex/edge in multiple graphs.
>
> Ernst
>
> --
> Information System on Graph Classes and their Inclusions (ISGCI)
> http://www.graphclasses.org
>
>
> ----- Reply message -----
> From: "Santiago Timón" <sti...@gm...>
> To: <jgr...@li...>
> Subject: [jgrapht-users] Getting edges for a vertex
> Date: Fri, Aug 17, 2012 21:14
>
>
> Hi,
>
> I'm pretty newbie with JGraphT and the first thing I tried went bad. I
> must say the API is very straightforward, but it seems it behaves different
> from what I expect.
>
> The simple example:
>
> DirectedMultigraph<String, DefaultEdge> graph = newDirectedMultigraph<String, DefaultEdge>(DefaultEdge.
> class);
>
>   String a = "a";
>
>  String b = "b";
>
>   graph.addVertex(a);
>
>  graph.addVertex(b);
>
>   graph.addEdge(a, b);
>
>   for (DefaultEdge edge : graph.edgesOf(a)) {
>
>  String target = (String) edge.getTarget();
>
>  System.out.println(target);
> }
>
> I am working on a much more complex problem, but this simple code doesn't
> work as I thought. I don't know why the edges doesn't store the source and
> target vertex but null.
>
> It's very important to me to travel through the graph investigating
> vertex's edges, can anybody tell me how to do it?
>
> Many Thanks,
>
> Santi
>