Backbutton Example

[khsiow]

Anyone has an example to share on how to get the prevent backbutton? So far, all the examples allowed the backbutton operation and it was messing up conversation. Thanks.

[markfoerstein]

Did you try the booking example? It seems to handle the back button very well.

[basel]

jBPM pageflow solves the problem of backbutton. Take a look at Chapter 4 of the documentation.

[khsiow]

Thanks for the pointers. I just tried the booking example. When I used the backbutton and later clicked on a action button, it displayed no conversation message. I was expecting the system would redisplay the current page immediately as soon as I hit the backbutton.

I guess I've to debug my current test program. It didn't display the currently active state page.

[khsiow]

I reprogrammed my test example and now I got an example. There must be something I didn't get it right to have Seam to redisplay the current page.

21:23:34,937 ERROR [PhaseListenerManager] Exception in PhaseListener RESTORE_VIEW(1) afterPhase
java.lang.IllegalStateException: No active conversation context
at org.jboss.seam.core.Process.instance(Process.java:32)
at org.jboss.seam.core.TaskInstance.instance(TaskInstance.java:51)
at org.jboss.seam.contexts.BusinessProcessContext.getTaskInstance(BusinessProcessContext.java:213)
at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:51)
at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:155)
at org.jboss.seam.Component.getInstance(Component.java:1245)

[gavin.king]

"khsiow" wrote:
I was expecting the system would redisplay the current page immediately as soon as I hit the backbutton.

That is definitely not the expectation, and would not be desirable.