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From Martin Kočí (Updated) (JIRA) <...@myfaces.apache.org>
Subject [jira] [Updated] (MYFACES-3435) [perf] _DeltaList: use ArrayList as parent
Date Fri, 30 Dec 2011 19:32:30 GMT

     [ https://issues.apache.org/jira/browse/MYFACES-3435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Martin Kočí updated MYFACES-3435:
---------------------------------

    Status: Patch Available  (was: Open)
    
> [perf] _DeltaList: use ArrayList as parent
> ------------------------------------------
>
>                 Key: MYFACES-3435
>                 URL: https://issues.apache.org/jira/browse/MYFACES-3435
>             Project: MyFaces Core
>          Issue Type: Improvement
>          Components: General
>    Affects Versions: 2.0.12-SNAPSHOT, 2.1.6-SNAPSHOT
>            Reporter: Martin Kočí
>            Assignee: Martin Kočí
>            Priority: Minor
>         Attachments: MYFACES-3435.patch
>
>
> Two internal classes _DeltaList in API:
> 1) now use delegation pattern, but are always initialized with an ArrayList instance
-> use inheritance and  ArrayList as parent -> improvement in memory area, reduces number
of GCed object in one request/response of (_DeltaList instances/2) 
> 2) initialize expected size of _DeltaList (for example, number of validators per one
component is perhaps never 10, use: new _DeltaList(5))
> 3) use indexes in 'for' instead of iterator (java.util.RandomAccess) ->  improvement
in performance

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