[jira] [Created] (TINKERPOP-1834) Consider iterate() as a first class step

["stephen mallette (JIRA)" <ji...@apache.org>]

stephen mallette created TINKERPOP-1834:
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             Summary: Consider iterate() as a first class step
                 Key: TINKERPOP-1834
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1834
             Project: TinkerPop
          Issue Type: Improvement
          Components: process
    Affects Versions: 3.2.6
            Reporter: stephen mallette
            Assignee: Marko A. Rodriguez


The {{iterate()}} terminator on a traversal returns no data. It simply executes the traversal in full typically for the generation of side-effects. Graph providers could optimize a traversal that is iterated should they be able to detect that this method is called as they might avoid certain read operations if the traversal is explicitly meant to just update the graph. 

A possible solution for this would be some form of direct implementation of an explicit {{IterateStep}} which providers could identify. Or perhaps, a more generic {{NoOpStep}} would be better where the {{NoOpStep}} would basically just be a marker with some meta-data tied to it (i.e. a {{Map}} of arbitrary configuration options). In this case, the configuration options would simply have an "iterate" value in it which the provider could interpret if they could optimize based on that. Other solutions?



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