tinkerpop 2.6.0 with titan-server-0.4.4 (titan + rester + cassandra) :: GremlinGroovyEngine for g.V()

[dp]

All,

I am using tinkerpop 2.6.0 with titan-server-0.4.4 (titan + rester + cassandra). I am using the GremlinGroovyScriptEngine to evaluate the script.

The  GremlinGroovyEngine for g.V() gives the below error. Please help.

Script:

 g.V().has('type','IUser').has('userId',T.eq,userId).fill(results)

Error Received: 

javax.script.ScriptException: groovy.lang.MissingMethodException: No signature of method: com.tinkerpop.blueprints.impls.rexster.RexsterGraph.V() is applicable for argument types: () values: []

Possible solutions: is(java.lang.Object), any(), use([Ljava.lang.Object;), any(groovy.lang.Closure), use(java.util.List, groovy.lang.Closure), use(java.lang.Class, groovy.lang.Closure)

at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:348)

at org.codehaus.groovy.jsr223.GroovyCompiledScript.eval(GroovyCompiledScript.java:41)

at javax.script.CompiledScript.eval(CompiledScript.java:92)

-Regards, Durga

[Priya]

 there(

try using and u have 2 .has in same statement

i tried this

gremlin>  g.V().and(_().has('categoryName','gel'),_().has('type','category')).map
15:30:03 WARN  com.thinkaurelius.titan.graphdb.transaction.StandardTitanTx  - Query requires iterating over all vertices [()]. For better performance, use indexes
==>{categoryName=gel, type=category}
==>{categoryName=gel, type=category}
 

[Daniel Kuppitz]

Hi Durka,

check: https://github.com/tinkerpop/gremlin/wiki/Using-Gremlin-through-Groovy

I bet you have to call Gremlin.load() if you want it to be available within a GroovyScriptEngine container.

Cheers,

Daniel

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[dp]

Thank you Priya and Daniel for replies. 

This expression is working good in rexster-console, rexster-dog-house tool.     Here is my code from Java. This was working with rester 2.6.0 on arangodb graph. But on Titan+Rexster+Cassandra (2.4.0) this is showing the error.           

As per Daniel's Suggestion, I tried using Gremlin.load() and not resolved.

String expr = "g.V().has('type','IUser').has('userId',T.eq,userId).fill(results)";

Gremlin.load();  // I tried using this in static method too.

                GremlinGroovyScriptEngine engine = new GremlinGroovyScriptEngine();

CompiledScript script = engine.compile(expr);

List results = new ArrayList();

javax.script.Bindings bindings = engine.createBindings();

bindings.put("g", getConnection());

bindings.put("userId", "user1");

bindings.put("results", results);

System.err.println(">>>>>>>>>>>> " + expr);

try {

Object obj = script.eval(bindings);

                             }catch(Exception e){

                             }

thanks in advance.

-Durga

[Daniel Kuppitz]

Hey Durga,

just shooting in the dark here, but don't you have to add the bindings before you compile the script?

Cheers,

Daniel

To view this discussion on the web visit https://groups.google.com/d/msgid/gremlin-users/0c9f8bf3-ebb2-4a96-80b4-663048bca1d7%40googlegroups.com.

[dp]

Daniel,

I am compiling the script and putting in cache.

Then I am binding parameters every time I execute. This was working in Rexster 2.6.0 as well as in ArangoDB.

I observed that the Rexster 2.4.0 version in the titan-all-server 0.4.4 version. Not sure if that causing the issue.

:)

-Regards, Durga