[jira] [Closed] (TAP5-902) GridDataSource does not allow performing less than 2 queries if returning results

["Howard M. Lewis Ship (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAP5-902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Howard M. Lewis Ship closed TAP5-902.
-------------------------------------

    Resolution: Won't Fix

See comments; there is no single good fix that combined a single query (for small result sets) with scalability (for very large result sets).

> GridDataSource does not allow performing less than 2 queries if returning results
> ---------------------------------------------------------------------------------
>
>                 Key: TAP5-902
>                 URL: https://issues.apache.org/jira/browse/TAP5-902
>             Project: Tapestry 5
>          Issue Type: Improvement
>          Components: tapestry-core
>    Affects Versions: 5.1.0.5
>            Reporter: Dan Adams
>            Assignee: Howard M. Lewis Ship
>
> By having getAvailableRows() and prepare() separate, any implementation is forced to perform 2 queries. Many systems allow getting the results of a query and the total count in one query so that you don't have to perform 2 queries. Getting around this requires some pretty gross hacks (unless you just don't use grid at all which is unfortunate).



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