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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2015/12/25 16:06:49 UTC

[jira] [Created] (IGNITE-2288) F.first(Collection) should use index-based lookup for Lists.

Vladimir Ozerov created IGNITE-2288:
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             Summary: 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: 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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