Introduction to Oracle ADF Task Flows

1. By: Rohan Walia
Oracle ADF & Webcenter Consultant

2.  Overview of ADF Task Flows
 Different Types of Task Flows
 Details and concepts of Task flows
 Components in task flows
 Introduction of Task flows templates
 Best Practices on building reusable task flows
 Demo
 Questions

3. Must Be thinking !
 Oracle ADF and Webcenter Consultant.
 Oracle Certified ADF & Webcenter Implementation specialist.
 Consultant, Blogger, Speaker and open networker.
 Part of North India Chapter AIOUG.
 Passionate about Oracle Technologies.
 Have been working in Oracle/Java products from 8.5 years.
 Currently working with Oracle Consulting.
 Blog – http://rohanwalia.blogspot.in/
 Twitter - @rohanwalia17

4. JSF View
Controller
Model
Business
Services
Data Services
Desktop Browser-Based
Office
ADF
Swing
Task Flows in Oracle ADF
ADF Faces
JSF ADF Controller
Mobile
ADF Binding
Java EJB ADFBC BAM Web Services BPEL BI Portlets
M
D
S
Mobile
Database Web Services Legacy Systems Apps Unlimited

5.  Visual representation of app process flow
 Each TF contains portion of app navigation
 They are similar to traditional flow charts
 Main reason is to reuse Task Flows.

6.  Bounded Task Flows
 UnBounded Task Flows

7.  The Outermost Task Flow in the application.
 No Boundary.
 It can have Multiple entry points.
 They do not accept Task Flow Input Parameters.
 They do not return parameters.
 They are used to define top level flow of application.
 They do no have transaction control options.
 Commonly used to create Menu Models.
 No Security is associated with U-BTF’s.

8.  It has a well defined boundary.
 There is only single entry point.
 It is a reusable component and can be reused within and across
applications.
 They can accept Parameters.
 They can return Parameters.
 They have declarative transaction management.
 They are part of ADF security.

9.  Events that link activities.
 Are like JSF Navigation rules.
 Raised by actions in the page – buttons, links etc.
 They are combination of page and action event.
 They link origin page to destination page.
 Control shifts from origin page to destination page.
 Developer only needs to drop arrow (control flow case)
between two activities.

10.  View Activity
 Control Flow Cases
 Method Execution
 Router
 Return Activity
 Task Flow Call Activity.
 Exception Handling.

11.  It References a page or page fragment.
 Does not owns a page.
 Can accept parameters.
 Parameters can be stored in Managed Bean of
Memory Scope.
 Bookmarkable : Can be book marked if it is used in
UBTF.
 Extensions – Jspx and Jsff.

12.  It’s a switch which provide if and else outcomes.
 Routes to destination activity based on EL.
 EL evaluates to a specific condition and map it to
navigation case.
 It has a default condition.
 Default outcome decides what needs to be done if
none of the cases are met.

13.  Method Call allows to invoke java methods within task
flow.
 Input Parameters are defined in Controller Metadata.
 Commonly used initializer , exception handlers or
cleanup.
 Can return values in case method return some results.
 Returned results can be used as control flow.

14.  Calls another task from Bounded or
Unbounded task flows.
 Accept task flow input parameters.
 Can return output parameters.
 Can be run as a dialog.

15.  Use to return the control back to the caller Task
Flow.
 Performs either Commit or Rollback operation.
 Set outcome to required control flow navigation-case.

16.  URL Activity
 Wild Card
 Parent Action
 Save Point Restore

17.  Task flows are added as Regions.
 Region is a portion on the JSPX page.
 The portion is having lifecycle of the Task
Flow.
 TF is initialized on rendering of the JSPX Page.

19. Questions ?
in.linkedin.com/in/rohanwalia/
er.walia@gmail.com
@rohanwalia17
http://rohanwalia.blogspot.in/