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Posted to dev@tapestry.apache.org by "Howard M. Lewis Ship (JIRA)" <ji...@apache.org> on 2008/10/16 19:23:46 UTC
[jira] Updated: (TAP5-99) Frequently instantiated service
implementations should have a specialized instantiation class created to
prevent extra reflection calls
[ https://issues.apache.org/jira/browse/TAP5-99?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Howard M. Lewis Ship updated TAP5-99:
-------------------------------------
Issue Type: Improvement (was: Bug)
> Frequently instantiated service implementations should have a specialized instantiation class created to prevent extra reflection calls
> ---------------------------------------------------------------------------------------------------------------------------------------
>
> Key: TAP5-99
> URL: https://issues.apache.org/jira/browse/TAP5-99
> Project: Tapestry 5
> Issue Type: Improvement
> Affects Versions: 5.0.15
> Reporter: Howard M. Lewis Ship
> Priority: Minor
>
> From the department of premature optimization:
> For services that are scope "perthread", the service implementation will be invoked repeatedly, via either invoking a constructor, or invoking a (static or instance) builder method on a module class.
> Currently each such instantiation requires calculating the method/constructor parameters (somewhat expensive) and invocations of the method/constructor via reflection (borderline expensive).
> The code responsible for this could track the number of instantitations and, on the second (or later) pass, create a "shim" class responsible for performing the same operations in a non-reflective way.
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