Re: [jgrapht-users] DefaultEdge vs Void

[Victor P. <po...@na...>]

But what if I write the following?

class MyVoid {
    // empty
}

Graph<T,MyVoid>

Will this instantiation "work"?

I ask because it seems to me to store source and target in each edge is
redundant, because in context of its usage the source and target is
known. I ask therefore, if we can use an empty class like MyVoid to
avoid storing source and destination.

On Sat, 2018-01-06 at 19:56 +0200, Dimitrios Michail wrote:
> Not really. Void is just a placeholder type which cannot be
> instantiated. The type you provide for the edgesmust be a class that
> can be instantiated.
> 
> Read about Java Generics in order to understand its purpose (https://
> docs.oracle.com/javase/tutorial/java/generics/index.html).
> 
> There are plenty of examples of graph instantiations in the JGraphT
> test cases.
> 
> --Dimitrios
> 
> 
> 
> On Sat, Jan 6, 2018 at 4:14 PM, Victor Porton <po...@na...>
> wrote:
> > What is the difference between Graph<T,DefaultEdge> and
> > Graph<T,Void>?
> > 
> > 
> > 
> > Does the second work?
> > 
> > 
> > 
> > -----------------------------------------------------------------
> > -------------
> > 
> > Check out the vibrant tech community on one of the world's most
> > 
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > 
> > _______________________________________________
> > 
> > jgrapht-users mailing list
> > 
> > jgr...@li...
> > 
> > https://lists.sourceforge.net/lists/listinfo/jgrapht-users
> > 
> 
> -------------------------------------------------------------------
> -----------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot__________
> _____________________________________
> jgrapht-users mailing list
> jgr...@li...
> https://lists.sourceforge.net/lists/listinfo/jgrapht-users