[jira] [Updated] (TINKERPOP3-882) Develop a less error prone way for rewriting stratgies

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

     [ https://issues.apache.org/jira/browse/TINKERPOP3-882?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stephen mallette updated TINKERPOP3-882:
----------------------------------------
    Affects Version/s: 3.0.1-incubating
              Summary: Develop a less error prone way for rewriting stratgies  (was: Develope a less error prone way for rewriting stratgies)

Somewhat related: https://issues.apache.org/jira/browse/TINKERPOP3-821

> Develop a less error prone way for rewriting stratgies
> ------------------------------------------------------
>
>                 Key: TINKERPOP3-882
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP3-882
>             Project: TinkerPop 3
>          Issue Type: Improvement
>          Components: process
>    Affects Versions: 3.0.1-incubating
>            Reporter: Marko A. Rodriguez
>            Assignee: Marko A. Rodriguez
>
> When someone writes a {{TraversalStrategy}} it is of the nature:
> {code}
> if(step instanceof SelectStep && ((SelectStep)step).getLocalChildren().size() > 1) {
>   TraversalHelper.insertStep(new IdentityStep(), step, traversal);
> }
> {code}
> It can start to get hairy looking fast. It would be great if we could study the strategies we have thus far and see if there are patterns we can extract encapsulate such behaviors in new methods in {{TraversalHelper}}. I don't have any good ideas on how to do this, but I think we need it. My only thought was a "regular expression" language for our traversals so we can pattern match ON the traversal. 



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