Running Gremlin-Hadoop with Java API

[tud]

Hello everyone,
I try to run a example

gremlin> g = HadoopFactory.open('conf/hadoop/titan-graphson.properties')

gremlin> g.V.out.path

How can i run this example with Java API ?
Thanks
Tud

[Daniel Kuppitz]

Check out this wonderful conversion guide written by Stephen Mallette:

http://stackoverflow.com/questions/29409219/gremlinpipeline-java-api-chain-traversal-in-titan-graph-use-cases/29411662#29411662

Cheers,

Daniel

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[tud]

Hi Daniel ,
thanks you for your answer.I think, that is for GremlinPipeline .I need something here for HadoopPipeline

Cheers
Tud

[Daniel Kuppitz]

It's almost the same, except  the fact that a HadoopPipeline is executed using .submit().

Reference: http://s3.thinkaurelius.com/docs/titan/0.5.4/hadoop-gremlin-cli.html#_gremlin_script

Cheers,

Daniel

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[tud]

I tried  to run with submit() .but getting one exception .Could you show me a whole code java example ?

Thanks

Tud

[Daniel Kuppitz]

The sample provided in the docs (link in my previous answer) is a complete example. You can even turn it into a one-liner.

HadoopFactory.open('conf/hadoop/titan-graphson.properties').V().out('father').property('name').submit()

Besides that you should find a few more examples on the mailing list.

Cheers,

Daniel

To view this discussion on the web visit https://groups.google.com/d/msgid/aureliusgraphs/014b4ea1-ca3b-42f9-abfd-09784cc9c8d1%40googlegroups.com.