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https://issues.apache.org/jira/browse/TINKERPOP-2929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17714764#comment-17714764
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Yang Xia commented on TINKERPOP-2929:
-------------------------------------
[https://github.com/apache/tinkerpop/pull/2025] is merged.
> Introduce new marker interfaces to identify whether a step can perform write
> or delete or both
> ----------------------------------------------------------------------------------------------
>
> Key: TINKERPOP-2929
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2929
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.6.2
> Reporter: Yang Xia
> Assignee: Yang Xia
> Priority: Major
> Fix For: 3.7.0, 3.6.3
>
>
> As described in the PR [https://github.com/apache/tinkerpop/pull/2025]
> {quote}Currently all steps that can change graph data implements Mutating
> interface. However, there is no straight forward way to know whether the step
> can perform write or delete or both on the graph data. This PR introduces two
> new marker interfaces {{Writing}} and {{Deleting}} defining whether step can
> perform write or delete or both.
> In addition to this, this PR creates a static map of Traversal steps that
> shall be added for a given operator. Both can be combined to assess whether a
> given query can perform read or write or delete or any combination of these
> before query execution.
> {quote}
> For details see dev list post:
> [https://lists.apache.org/thread/433bc2qr5owvjcfn0tbj55sgz95zg6df]
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