Page Flow with TRAIN STOPS

Question

Hi! I created Bounded task flow with Train Stops, see: http://my.jetscreenshot.com/2677/20120516-4ens-9kb
So, I want to use this Flow to insert first new Department and after that employees that work in this department. So I have two questions:
1. How can I add Create/Insert operation from DC before departments VIEW and employees VIEW (see in http://my.jetscreenshot.com/2677/20120516-4ens-9kb)?
2. If I insert new department and employees that work in this department I need to do commit after each Train Stop or I can do commit operation after last Train Stop?
Waiting for Your responses, best regards, Debuger!

Answer 1

Debugger,
At runtime, executable bindings are refreshed based on the value of their Refresh attribute. Refreshing an iterator binding reconnects it with its underlying RowSetIterator object. Refreshing an invoke action binding invokes the action. Before refreshing any bindings, >the ADF runtime evaluates any Refresh and RefreshCondition attributes specified in the executables. The Refresh attribute specifies the ADF lifecycle phase within which the executable should be invoked. The RefreshCondition attribute specifies the conditions under >which the executable should be invoked. You can specify the RefreshCondition value using a boolean EL expression. If you leave the RefreshCondition attribute blank, it evaluates to true.For more details on refresh condition you can refer this: http://docs.oracle.com/cd/E14571_01/web.1111/b31974/bcdcpal.htm#ADFFD517
The Restore View phase of the JSF lifecycle presents three view instances: new view, initial view, and postback, with each one being handled differently. In the case of
new view :JSF builds the view of the Faces page.
initial view (the first time a page is loaded), JSF creates an empty view.
postback (the user returns to a page he/she has previously accessed): the view corresponding to the page already exists, so it needs only to be restored
Now: *${!requestContext.postback and empty bindings.exceptionsList}*
requestContext.postback+: returns true if JSF is currently processing a postback request and return false if this is a request for an initial render of a page. It means the refreshCondition evaluates to true for an Initial render of a page and no exceptions.
Hope this clarifies the line of code.