Does toplink support selecting an interval from a ResultSet ?

Hi,
I wonder if Toplink supports selecting an interval of rows before creating Java objects. I think I can do this myself using CursorStream but that would take more time to ignoring created java objects than ignoring items (rows) from query result.
actually the purpose is to simulate cursor. since a cursor is quite expensice to keep in memory for long time, but still the applications, working with a paging logic, want to select one page of objects each time they make a call to toplink, I need to provide them with this functionality.
for example there is a retrieve request that would result in 1000 objects. in the first call, they want to retrieve 0-50, in the second call 50-100, and so on.
ps : I don't let these applications keep a cursor on behald of them on the server.
thanks.
Erdem.

ScrollableCursors support intervals and positioning the result set.

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