[ http://issues.apache.org/jira/browse/COLLECTIONS-224?page=all ]
Mariusz Krzemien updated COLLECTIONS-224:
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Attachment: KeyedPriorityBuffer-patch.txt
generated with svn diff
> [PATCH] Proposal for a new collection type KeyedBuffer
> ------------------------------------------------------
>
> Key: COLLECTIONS-224
> URL: http://issues.apache.org/jira/browse/COLLECTIONS-224
> Project: Commons Collections
> Issue Type: New Feature
> Components: Buffer
> Affects Versions: 3.3
> Reporter: Mariusz Krzemien
> Attachments: KeyedPriorityBuffer-patch.txt
>
>
> Patch contains three new files:
> KeyedPriorityBuffer - class based on PriorityBuffer; with additional support
> for fast search and remove
> KeyedBuffer - general interface for all buffers containing key-identified
> elements
> TestKeyedPriorityBuffer - JUnit test cases
> Rationale for introducing new types: I needed a buffer with additional fast
> search (both get and remove) of elements. I wanted a buffer with search
> characteristics of a HashMap. But one cannot simply put together a Buffer
> with a HashMap since the Map needs to have an access to the internal buffer
> data structures to manage fast remove(key).
> KeyedPriorityBuffer is mixin of a PriorityBuffer with a internal HashMap
> managing fast search operations.
> KeyedBuffer is a general interface for all such buffers supporting key
> operations. It extends Map rather than Collection since imho it is more
> natural.
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