Database controls returning large datasets

Question

In reading the Workshop help (Working with Java Controls -> Using Built-In Controls -> Database Control -> Designing a Database Control) it says one technique you should use is to return an Iterator:
"The Iterator wraps a java.sql.ResultSet object that accesses the database efficiently. The Iterator and ResultSet objects transparently make occasional requests to the database to obtain more data as needed as you iterate through the resultset. Using this technique, you may enable processing of resultsets that are larger than the available memory."
"However, note that ResultSets and Iterator types cannot be returned directly to classes in the web-tier (web services and page flows reside in the web-tier). This is because ResultsSet and Iterators will always be closed by the time they reach the web tier. As a workaround for this limitation, you should return custom array types to the web tier (such as Customer[])."
OK. So, what do I do? Have the DB control return an iterator, but have a custom control in front of it for the page flow that calls it and returns a Customer array? Does the custom control have to "manage" the iteration (i.e. return an array of 10 customers, when you ask for more iterate over the next 10 and return it, etc.)?
Thanks.

Answer 1

Since no one answered yet, I'll answer myself (some). I found a neat article and the code to go with it on dev2dev that handles paging through many rows by wrapping the <netui:repeater> tag. See:
http://dev2dev.bea.com/pub/a/2005/02/netui_repeater.html
Very cool. Thanks to the author, Gerald Nunn. I'd much rather find code already written than have to write it myself. ;-)