Home » Oracle » 1z0-419 » When creating a bounded task flow that uses ADF Business Components, which two steps do you need to perform to enable the task flow to manage its own transaction?
When creating a bounded task flow that uses ADF Business Components, which two steps do you need to perform to enable the task flow to manage its own transaction? (Choose two.)
A. Define transaction properties at the task-flow level.
B. Include a phaseListener in a managed bean with methods for commit and rollback.
C. Add the application module commit and rollback operations as buttons or links on the last JSF page of the flow.
D. Define task flow return activities in the flow and associate “End transaction” attribute values with them.
Correct Answer: AD
Explanation/Reference:
A: To enable a bounded task flow to run as a transaction:
1. In the overview editor for the called bounded task flow, click Behavior and expand the Transaction section.
2. Choose one of the following from the dropdown list:
<No Controller Transaction>: The called bounded task flow does not participate in any transaction management.
Always Use Existing Transaction: When called, the bounded task flow participates in an existing transaction already in progress.
Use Existing Transaction If Possible: When called, the bounded task flow either participates in an existing transaction if one exists, or starts a new transaction upon entry of the bounded task flow if one doesn’t exist.
Always Begin New Transaction: A new transaction starts when the bounded task flow is entered, regardless of whether or not a transaction is in progress. The new transaction completes when the bounded task flow exits.
D: 1. Select the task flow return activity in the called bounded task flow.
2. In the Property Inspector, expand the Behavior section.
If the called bounded task flow supports creation of a new transaction (bounded task flow specifies Use Existing Transaction If Possible or Always Begin New Transaction options), select one of the following in the End Transaction dropdown list:
commit: Select to commit the existing transaction to the database.
rollback: Select to roll back a new transaction to its initial state on task flow entry. This has the same effect as cancelling the transaction.
References: https://docs.oracle.com/cd/E15523_01/web.1111/b31974/taskflows_complex.htm#ADFFD1710
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