Contextual event - handler called before producer bean's setter

Question

I am trying a simple contextual events usecase:
Page A.jsff has an input text field whose value is directly stored in a bean variable (bean is in pageFlowScope). Contextual event is defined on value change event for this input field. A.jsff has taskflow B_btf as an embedded region.This B_btf will simply display the value entered in the A.jsff. So, when contextual event is raised, the handler sets the value in a local variable of B_btf bean. The problem is that the handler method is getting called before the setter for the attribute of the bean of A.jsff. This is resulting in the B_btf displaying the last-but-one value entered in the input field of A.jsff instead of the current/latest value. Any tips?
Thanks,
Amitabh

Answer 1

The issue was with the (lack of) understanding of the JSF lifecycle. The value change listener is called during the Process Validation phase, whereas the managed bean (Model) values will be set in the Update Model phase which lies next-in-line after Process Validation phase. Hence, if the value change listener is to be used, then the handler code should have used the default payload and not the custom payload. For a value change event the default payLoad will be a DCBindingContainerValueChangeEvent, and one can invoke getNewValue() to get the value entered in the text field (For details watch Frank Nimphius' video here: ADF Region Interaction - Contextual Events - YouTube). For my case, I added a command button to the page, and moved the contextual event to that button.