[ http://nagoya.apache.org/jira/browse/BEEHIVE-41?page=history ]
Rich Feit resolved BEEHIVE-41:
------------------------------
Assign To: Steve Tocco (was: Rich Feit)
Resolution: Fixed
Fixed with svn revision 57113. Steve/Julie, let me know if you need more info
on this.
> Cannot use an interface as the form bean for an action
> ------------------------------------------------------
>
> Key: BEEHIVE-41
> URL: http://nagoya.apache.org/jira/browse/BEEHIVE-41
> Project: Beehive
> Type: Improvement
> Components: NetUI
> Versions: V1Alpha
> Reporter: Rich Feit
> Assignee: Steve Tocco
> Fix For: V1Beta
>
> This deals with returning data from nested page flows, in the case where
> multiple nested page flows may return to the same calling page flow.
> Consider the scenario where you have a generic calling page flow that can
> forward to any number of nested page flows, and where each of the nested page
> flows conforms to an 'interface' of returnActions. When the nested page flow
> returns, you may want to specify an interface type or base class type in the
> action method on the calling page flow, so the nested page flow can return an
> implementation/extension of the type. Currently, the exact types of the
> returned bean and the handler action's bean must match.
> Here's an example of what I'm talking about:
> generic interface for returning data:
> -------------------------------------
> public interface DataReturn
> {
> ...
> }
> calling page flow:
> ------------------
> @Jpf.Controller
> public class CallingController extends PageFlowController
> {
> @Jpf.Action
> public Forward goNested()
> {
> URI uri = lookupNestedPageFlowURI(); // user code to determine the
> nested page flow URI dynamically
> Object inputBean = ...;
> return new Forward( uri, inputBean );
> }
> @Jpf.Action( ... )
> public Forward nestedDone( DataReturn dataReturn )
> {
> ...
> }
> ...
> }
> a nested page flow:
> -------------------
> @Jpf.Controller
> public class Nested extends PageFlowController
> {
> private static class MyDataReturn implements DataReturn
> {
> ...
> }
> @Jpf.Action(
> forwards={
> @Jpf.Forward(name="exit", returnAction="nestedDone")
> }
> )
> public Forward done()
> {
> return new Forward( "exit", new MyDataReturn( ... ) );
> }
> }
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