[jira] Commented: (JCS-43) 3 new eviction policies

    [ https://issues.apache.org/jira/browse/JCS-43?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12619124#action_12619124 ] 

Aaron Smuts commented on JCS-43:
--------------------------------

The priority list throw a null pointer exception if you remove an element that isn't present.  That's not good.  A one line unit test exposed this.  

> 3 new eviction policies
> -----------------------
>
>                 Key: JCS-43
>                 URL: https://issues.apache.org/jira/browse/JCS-43
>             Project: JCS
>          Issue Type: Improvement
>          Components: Composite Cache
>    Affects Versions: jcs-1.3
>            Reporter: Maxim Gordienko
>            Assignee: Aaron Smuts
>         Attachments: expiration-strategies.patch
>
>
> Patch attached to this issue contains three new eviction policies:
> LFU - least frequently used item is removed on cache overflow
> FIFO - the oldest item is removed
> Expire - item with closest expiration time is removed
> also patch refactors MemoryCache hierarchy to allow easier extension

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