Memstate movie model - strongly typed graphs

movieGraphModel.cs

//define actor node type
class Actor {
    String Name;
    Set<Role> Movies;
}

//define movie node type
class Movie {
   String Name;
   Set<Role> Roles;
}

/* A relationship modeled as a class */
class Role {
    String Name;
    Actor Actor;
    Movie Movie;
}

class Model {
    Set<Actor> Actors;
    Set<Movie> Movies;    
}

/* populate the graph */

// create nodes
var matrix = new Movie("Matrix");
var keanu = new Actor("Keanu Reeves");

//create an edge with properties
//notice that we can navigate from the edge to each node
var role = new Role {
    Name = "Neo",
    Actor =  keanu,
    Movie = matrix
};

//add the edge to each node
keanu.Roles.Add(role);
matrix.Roles.Add(role);

//set up the root graph
var model = new Model();
model.Actors.Add(keanu);
model.Movies.Add(matrix);

var movies = model.Movies.Where(m => m.Roles.Any(r => r.Actor == keanu)).Distinct();