Advanced Blueprints - andrew-nguyen/titan GitHub Wiki

Blueprints provides a set of common property graph interfaces by which any vendor can implement and leverage the TinkerPop stack of technologies. Within Blueprints, there are other utilities that are generally useful like import/export formats as well graph wrappers.

It is possible to use Blueprints’ IdGraph with Titan. However, if you want to use IdGraph for user specified ids on both vertices and edges, then it is important to declare the __id index using TitanGraph.makeType() first in Titan:

gremlin> g
==>titangraph[local:/tmp/test]
gremlin> g.makeKey('__id').single().indexed(Vertex.class).indexed(Edge.class).dataType(String.class).make()
==>v[36028797018964170]
gremlin> g = new IdGraph(g)
==>idgraph[titangraph[local:/tmp/test]]
gremlin> g.addVertex("hercules")
==>v[hercules]
gremlin> g.v("hercules")
==>v[hercules]

If only user defined ids on vertices (or edges) is needed, then simply use one of the overloaded IdGraph constructors:

gremlin> g = TitanFactory.open('/tmp/test')
==>titangraph[local:/tmp/test]
gremlin> g = new IdGraph(g,true,false) // where true is for vertices and false is for edges
==>idgraph[titangraph[local:/tmp/test]]