ADF Region Data Synchronisation with Change Event Policy

This post applies for multiple ADF regions, based on the same Data Control. I will show you can avoid using ADF Contextual Events to synchronise two ADF regions, when both are based on the same Data Control and this Data Control is shared between the two.

Sample application contains two ADF Task Flows, both are using the same VO instance from shared Data Control:

Two ADF regions are implemented based on these TF's, one implements table component and another a form:

Data from both regions is synchronised automatically. Based on row selection in the table, form data from another region stays in synch:

Backwards synch works as well - change Salary attribute value in the form:

Salary attribute in the corresponding row from the table will be updated:

In order for this to work, make sure to set ChangeEventPolicy=ppr for Employees iterator in the first fragment page definition (this will ensure update when data is changed in the form and we want to see synch in the table):

Set the same property for the iterator in the second fragment page definition (this will ensure form data to be in synch when row selection is changed in the table):

Download sample application - RegionCommunicationApp.zip.