[jboss-user] [JBoss Seam] - Questions on Seam's PAGE scope

CptnKirk do-not-reply at jboss.com
Mon Sep 11 18:08:20 EDT 2006

It isn't clear how page scoped resources are cleaned up.  They appear to survive multiple requests, however can be out of date and require a refresh() as indicated in the issues example ProjectFinderBean class.

Is it possible to set a page scope timout so that resources can be cleaned up in addition to providing a way to schedule data refreshes without user interaction?

The docs seem to imply that page scoped state is serialized back to the client, so maybe no data is being stored on the server.  This might aliviate memory related issues, but having a declarative way to time out this "page cache" would seem beneficial.  Am I missing a configuration option?

An example use case might be a stock quote.  A company may have an investors page that uses a third-party web service to lookup the company's stock price every 5 minutes.  This request should only be made once every 5 minutes, users shouldn't be able to refresh, and it should be easy to implement.  Seam + page scope + @Factory seems ideal here.  If you can time out the data that is.  After the time out, the factory method would be called again, and round you go.

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