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https://issues.apache.org/jira/browse/MYFACES-3435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194003#comment-13194003
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Leonardo Uribe commented on MYFACES-3435:
-----------------------------------------
Ok, let's let this change for the next release cycle. Note a change in that
part needs to be checked fully to prevent introduce bugs.
> [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, _ComponentChildrenList2.java
>
>
> 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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