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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-2288) F.first(Collection) should use index-based lookup for Lists.
Date Sat, 26 Dec 2015 08:27:49 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-2288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-2288:
------------------------------------
    Issue Type: Sub-task  (was: Task)
        Parent: IGNITE-2232

> F.first(Collection) should use index-based lookup for Lists.
> ------------------------------------------------------------
>
>                 Key: IGNITE-2288
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2288
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: general
>    Affects Versions: ignite-1.4
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>             Fix For: 1.6
>
>
> There are lots of places in code where F.first(Collection) is used. Quite often passed
collection is a List. 
> Instead of gettting iterator, we should do "get(0)" in these cases. This will allow us
to prevent iterator creation.



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