Suggest the appropriate method of managing beans in Richfaces

The scenario is like this. I have a rich:tabPanel with about 5 tabs. On first tab there is a rich:datatable. When I click on first column's element (a4j:commandLink), I get another rich:datatable. When I click on first column's element (a4j:commandLink) of this table, I change the tab where I have another rich:datatable and the same thing follows as above. The constraints from previous tab is used to get elements for the current one. If I click on the tab directly I get all elements related to that tab. Each rich:datatable refers to different tables. Each table is interrelated. Each tab refers to a single managed bean. I am using hibernate in backend.

The problem starts now. I dont want the managed beans to be session or application based since there are many variables to store. If I give request scope, the following thing happens. The first table in the tab renders perfectly, however when I click on the first column, the second table doesn't use all constraints since the scope is request, for example actionlistener. What am I supposed开发者_如何转开发 to do ?

One thing I can do is define one managed bean for each table. Or forcefully use session scope. Or is there any other way? Please help.

Thanks.

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If you are using Richfaces 3.0.0 or above you can annotate your bean with @KeepAlive or use the tag <a4j:keepAlive beanName="#{bean}" /> instead. This is an equivalent to the view scope in JSF 2.0.

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If you're already on JSF 2.0, use view scope. It's a scope which lives as long as you're interacting with the same page (independently of the browser tab/session!).

If you're still on JSF 1.x, use request scope with an <a4j:keepAlive beanName="#{bean}" /> declared in the view. It behaves like the JSF 2.0 view scope.