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https://issues.apache.org/jira/browse/KYLIN-3095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kaige Liu reassigned KYLIN-3095:
---------------------------------
Assignee: Kaige Liu
> Use ArrayDeque instead of LinkedList for queue implementation
> -------------------------------------------------------------
>
> Key: KYLIN-3095
> URL: https://issues.apache.org/jira/browse/KYLIN-3095
> Project: Kylin
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Kaige Liu
> Priority: Minor
>
> Use ArrayDeque instead of LinkedList for queue implementation where thread
> safety is not needed.
> https://docs.oracle.com/javase/8/docs/api/index.html?java/util/ArrayDeque.html
> {quote}
> Resizable-array implementation of the Deque interface. Array deques have no
> capacity restrictions; they grow as necessary to support usage. They are not
> thread-safe; in the absence of external synchronization, they do not support
> concurrent access by multiple threads. Null elements are prohibited. This
> class is likely to be faster than Stack when used as a stack, and *faster
> than LinkedList when used as a queue.*
> {quote}
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