如何通过cassandra在titan中添加图形

Question

I am running cassandra and titan 1.0.0. I added two table nodes and edges to cassandra. Now I want to make a graph with these two tables and i do not know how to do this. Sorry I searched the titan's document but i could not find my answer.

Answer 1

I don't believe this is officially supported by Titan.

You can create a Titan Graph which persists into Cassandra but I don't think you can import a Titan Graph from user defined Cassandra tables.

Titan uses Cassandra as a backend which means that you create the graph through Titan. The graph just happens to be persisted in Cassandra.

A simple example of creating a Titan graph persisted into Cassandra:

graph = TitanFactory.open("cassandra:localhost");
v1 = graph.addVertex();
v2 = graph.addVertex();
v1.addEdge("edge-label", v2);
graph.commit();

More information on specifying the backend persistence layer (eg Cassandra) can be found here