[jira] [Commented] (ISIS-654) Provide a request-scoped QueryResultsCache service, as a technique for performance tuning.

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ISIS-654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13875700#comment-13875700 ] 

ASF subversion and git services commented on ISIS-654:
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Commit b6a1bea37a7b38bb8cd1e135c6539a742a7337a0 in branch refs/heads/master from [~danhaywood]
[ https://git-wip-us.apache.org/repos/asf?p=isis.git;h=b6a1bea ]

ISIS-654: take-on of QueryResultsCache


> Provide a request-scoped QueryResultsCache service, as a technique for performance tuning.
> ------------------------------------------------------------------------------------------
>
>                 Key: ISIS-654
>                 URL: https://issues.apache.org/jira/browse/ISIS-654
>             Project: Isis
>          Issue Type: New Feature
>          Components: Core
>    Affects Versions: core-1.3.0
>            Reporter: Dan Haywood
>            Assignee: Dan Haywood
>            Priority: Minor
>             Fix For: core-1.4.0
>
>
> With Isis, the emphasis is on behaviourally complete domain objects.  However, this can result in "naive" algorithms whereby the same code is revisited mulitple times, eg in a tight loop  If that code makes repository queries, then a performance problem is likely to result.
> This ticket exploits the request-scoping support introduced in ISIS-652, and provides a service that acts as a cache of query results.  This enables that inner code to look in the cache first.



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