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graphgremlintinkerpoptinkerpop3

Why doesn't my gremlin query give an output?

I have run into some errors with my gremlin console.

I have the following lines of code: 

graph = TinkerGraph.open()
graph.io(graphml()).readGraph('air-routes.graphml')

i then do the following: 

g.V(2)

And this gives no output. in fact whenever i put in a number into V() nothing pops out when it should. What is going on?

Solution

  • You should set the id manager to use LONG identifiers:

    conf = new BaseConfiguration()
conf.setProperty("gremlin.tinkergraph.vertexIdManager", "LONG")
conf.setProperty("gremlin.tinkergraph.edgeIdManager", "LONG")
conf.setProperty("gremlin.tinkergraph.vertexPropertyIdManager", "LONG")
graph = TinkerGraph.open(conf)
graph.io(graphml()).readGraph("air-routes.graphml")

    See Loading the air-routes graph using the Gremlin console.