[jira] [Updated] (TINKERPOP3-620) Commutative Step Marker interface

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

     [ https://issues.apache.org/jira/browse/TINKERPOP3-620?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stephen mallette updated TINKERPOP3-620:
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    Component/s: process

> Commutative Step Marker interface
> ---------------------------------
>
>                 Key: TINKERPOP3-620
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP3-620
>             Project: TinkerPop 3
>          Issue Type: Improvement
>          Components: process
>            Reporter: Matthias Broecheler
>             Fix For: 3.0.0.GA
>
>
> Some steps can be reordered, i.e. they are commutative. For instance, has-steps can be reordered without affecting the pipeline. When writing a query optimizer I am often in a situation where I can only optimize a subset of the supported steps and I might want to reorder them so that I can group all the optimizable steps together. Currently, I have to manually identify the commutative steps for that. It would be much nicer if TinkerPop could have a "Commutative" marker interface for that and use it consistently.



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