A question about Application module and bounded taskflows

Hello

One of my friends sent me this question that I could not answer. The question is:


Your application contains a workflow bounded with four pages.

The pages are all based on different application modules and the workflow has the property of transaction, the value 'Always Begin new Transaction, and a commit operation is defined as the return of the activity. The user makes a few changes on each page, but a validation failure happens on the links on the third page.

Which of these scenarios describes the outcome of this situation?

A. None of the changes on pages undertakes all are cancelled.

B. pages one and two and four engaged; page three is not validated.

C. changes to the first two pages are validated; changes on the last two pages are not committed.

D. it depends on the value that has been set in the property Transaction on each module of the application.

I suggest the answer is A, but the answer my friend is C.

What is your suggestions

Thank you

You are right.

The point of transaction is that a couple of operation may be validated or cancelled together.

If a stubborn workflow starts with a new transaction, when he wishes to complete, he must call a task flow return activity validation or cancellation. They call the underlying commit() or rollback() operations on the associated data control framework, essentially validation or restoring all the data attached to the frame controls.


http://www.Oracle.com/technetwork/developer-tools/ADF/learnmore/ADF-task-flow-TRANS-Fund-v1-1-1864319.PDF

Tags: Java

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