Re: Questions about RMI

[Yoann Pigné <yoann.pigne AT gmail.com>]

Hi Numo,


In the documentation, the "Generator" part is just an example. Actually the 
RMISink only waits for a source to register on it. A Graph is a source too, 
so you can replace the "generator" part with your graph.

From the example on the documentation : 

Generator gen = new XXXGenerator();
gen.addSink(sink);

can become:

Graph g = new DefaultGraph("My graph");
g.addSink(sink);

and then you can use the  addNode/Edge methods you are used to : 

g.addNode("node1");
g.addNode("node2");
g.addEdge("edge1", "node1","node2");

Hope It will help you,

Let us know,

Yoann


On Oct 20, 2011, at 3:55 PM, 
<Nuno.Carvalho AT uk.fujitsu.com>
 wrote:

> Dear all,
>  
> I’m just started using GraphStream and I must say that this is a very 
> powerful tool.
> Now I want to use it with the RMI functionality. I want to implement the 
> following scenario:
>  
> -          Process A is generating Nodes and Edges for the Graph
> -          Process B is just getting the new nodes and edges and displaying 
> it on the screen.
>  
> For that, I’ve been trying to follow this tutorial:
> http://graphstream-project.org/doc/Tutorials/Using-remote-source_1.0/
>  
> So, before I had something like this:
>  
> Graph graph = new SingleGraph(“g”);
> graph.display();
> graph.addNode(...);
> graph.addEdge(...);
> // and so on...
>  
> Now I have this code split in two parts:
>  
> On one side, I have the part that displays the graph on the screen, which 
> is very simple:
> RMISource source = new RMISource();
> Graph graph = new DefaultGraph(“g”);
> source.addSink(graph);
> graph.display();
>  
>  
> On the other process, I must have an RMISink where I push the new nodes and 
> edges, right?
> So, I must have the following:
> RMISink sink = new RMISink();
> Sink.register(...);
>  
> Then, according to the Tutorial, I have to create a Generator, connect it 
> to the Sink and start loop on the generator.nextEvents();
>  
> The questions that I have are the following:
> -          The generator must be implemented by myself, based on my graph 
> data source, or I can use some already implemented Generator with a 
> interface similar to what I have for graphs(addNode, addEdge, etc)?
> -          If I need to implement my own generator, how should I do it? Is 
> there any tutorial to do this? I’m missing this part: how to add nodes and 
> edges, and push it to the RMISink...
>  
> All help will be much appreciated!
>  
> Thanks and kind regards,
> Nuno
>  
>  
>  
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