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From "Chen (Jira)" <>
Subject [jira] [Commented] (COLLECTIONS-563) CircularFifoDequeue
Date Mon, 04 Nov 2019 11:31:00 GMT


Chen commented on COLLECTIONS-563:

Hi, [~belugabehr] , I am very interested in the application scenario of the CircularFifoDequeue,but
I don't konw where it can be used, would you like to give a share?

> CircularFifoDequeue
> -------------------
>                 Key: COLLECTIONS-563
>                 URL:
>             Project: Commons Collections
>          Issue Type: Wish
>          Components: Collection
>            Reporter: David Mollitor
>            Priority: Major
>             Fix For: 4.x
> I have a need for a CircularFifoDequeue class and I see that Java 1.6 will be supported
now.  The CircularFifoDequeue would have the same functionality as the currently implemented
CircularFifoQueue, but can manipulate both sides of the queue.  Of most interest are the abilities
to: "descendingIterator," "peekLast," "removeLastOccurrence."
> If an item is ended to the front of the queue throw "not supported" exception? Remove
the item at the back of the queue?
> If an item is added to the back of the queue with no space available, the item at the
front of the queue is overwritten.

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