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https://issues.apache.org/jira/browse/WICKET-579?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alastair Maw updated WICKET-579:
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Assignee: (was: Alastair Maw)
> Need for DataTable not to require size
> --------------------------------------
>
> Key: WICKET-579
> URL: https://issues.apache.org/jira/browse/WICKET-579
> Project: Wicket
> Issue Type: Improvement
> Components: wicket, wicket-extensions
> Affects Versions: 1.3.0-beta1
> Environment: 1.3 snapshot dated 4/25
> Reporter: Kurt Roekle
> Attachments: wicket-toolbar.jar
>
>
> Requiring a size query for the DataProvider passed to the DataTable hurts
> performance and scalability (not to mention, it wont be accurate in a system
> when a lot of updates/deletes are taking place). I had hoped to be able to
> code just a new toolbar and DataProvider that would fix this, but I found I
> needed changes in DataTable and AbstractPageableView due to the fact
> AbstractPageableView caches the row count. I've made fixes for DataTable and
> AbstractPageableView and I've included one new interface that would be
> required. I've also added an implementation of a new toolbar and
> DataProvider that will enable DataTable to work without size (I've also
> included a modified NavigationToolbar (and friends) that could be implemented
> instead of a new toolbar. I've tested these changes with my limited
> knowledge of wicket and they seem to not break any existing code. I
> currently can't give you a diff, but the line #'s that changed are as follows:
>
> AbstractPageableView: 70,97,137,139,142-149
> DataTable: 120-122
> NavigationToolbar: 39,49,60,64,88,104
> PagingNavigator: 48,62-66,81,97,110
> NavigatorLabel: 42,54,74
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