Working with Navigation Flows - Oracle ADF 11gR2 Development Beginner's Guide - page 172

Reusability : Task lows can be reused within the applicaion to perform common tasks.
Re-entry supported : Users can re-enter the task flow based on the task flow
re-entry seing.
Rendered within ADF region in a page : A task flow can be added to a jspx page
as a region.
Own memory scopes (page flow scope) : The task flow contains the
pageFlowScope variable as a unique variable to store the data that exists within
the boundary of the task flow instance.
Transacion management : The task low can manage transacions. It can create
or join an exising transacion.
Security : Task lows can be secured by providing privileges and graning and
restricing access in an applicaion.
Time for action - adding a bounded task flow to
EmpDirectoryApplication
So let us see how to add a bounded task low to the applicaion:
1. Right-click on the web content folder and select the New opion from the menu.
The New Gallery window can be accessed by navigaing to File | New also.
2. Under the Web Tier secion, select the JSF/Facelets category.
3. Scroll down to select the ADF Page Flow and click on the OK buton. The Create
Task Flow window is to be displayed to the user.
4. Provide the file name as createEmployeeFlow.xml .
5. Locate the directory where you want to store the task flow file.
6. Check the Create as Bounded Task Flow opion to create the task low as a bounded
task low. Later, we have an opion to toggle between the task low types.
7. The task flow id is the same as the low name, which will uniquely idenify the
task flow.
8. Check the Create with Page Fragments opion to allow the creaion of page fragments
inside the task low. Page fragments are small units of informaion in an incomplete
JSF page added to the task low. The purpose of creaing page fragments is reusability.
The complete page is a jspx page with af:document enclosed within an f:view
tag. Page fragments represent a small porion in a complete page.