Thomas Götz created WICKET-4568:
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Summary: Caching of itemCount incorrect in AbstractPageableView
Key: WICKET-4568
URL: https://issues.apache.org/jira/browse/WICKET-4568
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 6.0.0-beta1, 1.5.6
Reporter: Thomas Götz
Priority: Minor
In AbstractPageableView.getItemCount() the result of dataprovider.size() is
cached to avoid potentially expensive calls. While paging (e.g. from page 1 to
page 2) dataprovider.size() is called twice anyhow. The reason for this is the
call to clearCachedItemCount() in AbstractPageableView.onBeforeRender(). This
call is obsolete as far as I can see, as clearCachedItemCount() is also called
in AbstractPageableView.onDetach().
I tested this with the wicket-examples (DataTablePage) and the deletion of the
call to clearCachedItemCount() in onBeforeRender() seems to have no side
effects. Maybe someone could confirm this?
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