What is DUMMY and why do I get "No signature of method: DUMMY.otherV()" message

[Al Byers]

g.V(fromVertex.id()).outE(thisEdgeLabel).where(otherV().hasId(pci.getVertex().id()))

I test the expression up to "where" statement.

groovy.lang.MissingMethodException: No signature of method: DUMMY.otherV() is applicable for argument types: () values: []

Possible solutions: every(), every(groovy.lang.Closure), grep(), grep(java.lang.Object), notify(), collect()

I do not get this error in gremlin-console; it is just in a groovy environment

[Stephen Mallette]

ha! i have no idea what that is....

what happens if you explicitly reference the otherV() as follows:

g.V(fromVertex.id()).outE(thisEdgeLabel).where(__.otherV().hasId(pci.getVertex().id()))

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[Al Byers]

I get:

groovy.lang.MissingPropertyException: No such property: __ for class: DUMMY

[Robert Dale]

Are you running this through a debugger?

Robert Dale

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[Stephen Mallette]

I was a bit fast in my response, but the implication of my response was that I think you need to check your imports. Originally, did you statically import the otherV() method of __? or after i suggested you do __.otherV() did you import the __?

Google didn't turn up much....that DUMMY exception seems related to the grails environment so I assume your'e running in there, so if it's not an import problem, then you probably need to go dig around the grails community to figure it out. Not sure if this helps:

https://stackoverflow.com/a/20735765/1831717

On Sun, Aug 12, 2018 at 1:26 AM Al Byers <bye...@automationgroups.com> wrote:

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[Al Byers]

Wow! You guys are good. I was using a debugger (Intellij IDEA evaluation window - which I guess was introducing the DUMMY variable). When I looked more closely at the actual log output instead of the evaluation window, it was obvious that I did not import:

org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__

which solved the problem.

Thanks.