Databases Reference
In-Depth Information
Task flows
The main advantage of the ADF controller is the support for task flows. It helps us to break our
complex web applicaion into smaller reusable lows. The task lows are simple XML iles which
support a diagram view to drag-and-drop the aciviies involved in a paricular user scenario.
Each of the pages that are involved in the task low is added as a view acivity and the control
lows between the pages describe the navigaion. The components in the task lows are called
as aciviies and each of the control lows will have an outcome to deine the navigaion.
In the previous screenshot, the aciviies are
checkAuthorizaion
,
noAuthorizaion
, and
fileUpload.
. The control flows are
authorized
and
notAuthorized
. The aciviies are dragged
from the
Component Palete
pane and dropped onto the task flow to define the page flows.
Task flow types
There are two types of task flows available in the ADF controller. They are unbounded task
flow and bounded task flow.
Unbounded task flow
As the name goes, the unbounded task lows has no deined entry and exit point. The aciviies
and control flows added to the unbounded task flow will not be included in the bounded
task flow.
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