[jira] [Updated] (WICKET-4221) Provide IResourceVersion implementation that does caching but provides means of updating cached entries.

["Dominik Drzewiecki (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WICKET-4221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dominik Drzewiecki updated WICKET-4221:
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    Attachment: UpdateableCachingResourceVersion.patch

It is largely based on CachingResourceVersion and uses synchronized LinkedHashMap as an underlying cache storage which may impose some scalability issues.
                
> Provide IResourceVersion implementation that does caching but provides means of updating cached entries.
> --------------------------------------------------------------------------------------------------------
>
>                 Key: WICKET-4221
>                 URL: https://issues.apache.org/jira/browse/WICKET-4221
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 1.5.3
>            Reporter: Dominik Drzewiecki
>            Priority: Minor
>         Attachments: UpdateableCachingResourceVersion.patch
>
>
> Now, you either have the entries cached for the application lifetime or you need to recalculate the version on each resurce link generation. Both implementations have their drawbacks. I hereby propose an implementation of IResourceVersion - UpdateableCachingResourceVersion - that may be initialized with the rule specifying how often/when the call should be redelegated to underlying provider and thus update cached entry.

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