[jira] [Created] (TINKERPOP-1508) Add choose(predicate,trueTraversal)

["Marko A. Rodriguez (JIRA)" <ji...@apache.org>]

Marko A. Rodriguez created TINKERPOP-1508:
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             Summary: Add choose(predicate,trueTraversal)
                 Key: TINKERPOP-1508
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1508
             Project: TinkerPop
          Issue Type: Improvement
          Components: process
    Affects Versions: 3.2.2
            Reporter: Marko A. Rodriguez


{{choose()}} supports {{choose(predicateTraversal,trueTraversal,falseTraversal)}}.

I have lots of code that does this:

{code}
choose(blah(), bloop(), identity())
{code}

That is, if the predicate traversal doesn't hold, I simply want the incoming traverser to be emitted -- {{identity()}}. This is sort of like {{optional()}}, but the predicate is something different from the branch. It would be nice to be able to simply say:

{code}
choose(blah(),bloop())
{code}

...where its understood that a "false" means {{identity()}}.



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