[jira] [Closed] (TAP5-99) Frequently instantiated service implementations should have a specialized instantiation class created to prevent extra reflection calls

["Massimo Lusetti (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAP5-99?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Massimo Lusetti closed TAP5-99.
-------------------------------

       Resolution: Invalid
    Fix Version/s: 5.3

Too much changed

> 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
>             Fix For: 5.3
>
>
> 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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