Downloaded 1,421 times
Uploaded byDataNext Solutions
Oracle ADF Task Flows for Beginners
This document provides an overview of ADF task flows for beginners. It defines task flows as the visual representation of an application's process flow. It describes the two main types of task flows - unbounded and bounded task flows - and their key differences. The document outlines the main components used to build task flows, such as view activities, method call activities, router activities, and task flow call activities. It provides tips for building reusable task flows, such as using input parameters, router activities as defaults, and dynamic regions. Finally, it briefly describes a demo example of different secured and reusable task flows.
Oracle ADF Task Flows for Beginners
- 1. ADF Task Flows ForBeginners By Zeeshan Baig, Oracle ACE www.baigzeeshan.com
- 2. A little aboutme..... I am currently working as Senior Developer at NMH in Chicago. ● 10+ years of experience in Oracle Development tools (Database, Forms, APEX, ADF, Fusion) ● Oracle ACE, OCP DBA certified in 8, 8i and 10g ● Technical blog on ADF and other fusion technologies at www.baigzeeshan.com ● YouTube channel http://youtube.com/baigsorcl Disclaimer: The views expressed are my own and does not affiliates with my employer
- 3. Agenda ● What are Task Flows? ● Types of Task Flows? ● Other concepts used in Task flows ● Understand different components to build task flows ● Introduction of Task flows templates ● Some tips on building reusable task flows ● Demo ● Questions Thanks Google, Flickr.com and Oracle documentation for images used in this presentation. These images are unmodified and used for educational purpose only.
- 4. What are taskflows their types and other concepts?
- 5. What are TaskFlows? In simple words ● Visual representation of app process flow ● Each TF contains portion of app navigation ● They are similar to traditional flow charts ● Primary purpose is reuse
- 6. Types of Taskflows Un Bounded Bounded Entry Points Entry Points Exit Points Exit Points
- 7. Types of TaskFlows Key Differences Un-bounded (UTF) Bounded (BTF) ● Public pages / No boundry ● Well defined boundry ● No reuse ● Reusable ● No input parameters ● Can take input parameters ● No return values ● Can return values ● No transaction Control ● Allows transaction control ● No security ● Security control ● e.g. Pages - Home, Help, ● e.g. Register, Checkout, Search, Navigations other application processes
- 8. Bounded Task flows ●A typical application contains one unbounded task flow and many bounded task flows ● Build bounded task flows in its own application / workspace BTFs can ● Create with Pages or Page fragments ● Create as Train flows ● Call in a Dialog
- 9. Bounded Task flows TrainFlows Video tutorial at http://www.baigzeeshan.com/2010/10/creating-train-flows-in-oracle-adf. html
- 10. Page vs PageFragment Page Fragment ● Renders as content in another JSF page ● Must not contains the af:document, af:form, f:view, head, body and html because JSF page already has it ● has .jsff extension Page ● can contains many fragments ● extension .jsf or .jspx
- 11. Task flow Regions Regionsare created when you drag and drop a bounded task flow on a page Static Regions Dynamic Regions ● Fixed visiblity ● Visible based on custom logic ● Creates Task flow ● Creates Multi-taskflow binding on page binding ● Tutorial http://www. ● Tutorial baigzeeshan. http://www.baigzeeshan. com/2010/04/creating- com/2010/06/working-with-dynamic-regions- pages-with-regions-in- in-oracle.html oracle.html
- 12. Task Flow ManagedBean Scopes 1. Application..... Remains till application stops 2. Session.......... Persists till user session 3. PageFlow...... Also known as Task flow scope 4. View............... Lifespan till current page 5. Request......... Lives for duration of request 6. BackingBean. only 7. Flash Scope.. UI Component based Remains Till Next encountered view (new in JSF 2.0)
- 13. Task flow ManagedBean Scopes
- 14. OK I gotit... now what components i need to build them?
- 15.
- 16. Task flow Components ViewActivity ● Displays a JSF Page or Fragment ● Extension .jsf, .jspx and .jsff (fragments) ● Bookmarkable only in unbounded Task flows ● Can have one or more task flow regions ● Good practice to have page definition file attached
- 17. Task flow Components Method Call ● Allows to call application logic in task flow Activity ● Drag and drop methods from Data Control ● OR DnD from component palette then configure parameters to call managed bean methods ● Common usages are initialization, Clean-up, expcetion handler ● Can have return values in case of method returns some result ● if method is of 'void' type then outcome would be simple string
- 18. Task flow Components RouterActivity ● Route to any activity based on EL expression ● Have default condition ● No Limits on conditions ● No limits on destinations ● Good practice is to start your task flows with Router for any future customizations.
- 19. Task flow Components Taskflow call activity ● Calls another task flow from unbounded and bounded task flow ● Can take input parameters ● Can return output parameters ● Drag and Drop task flow from Application navigator to task flow ● Drag and Drop task flow to the page as link or button
- 20. Task flow Components Task Flow Return ● Used to ends or send controls back to caller in Bounded Task flows ● Does either Commit or Rollback (If Task flow is transactional) ● Set outcome to required control flow navigation-case. ● BTF can have many TF return activities
- 21. Task flow Components URL View Activity ● Used to Redirect application to addressable URL ● Can call BTFs ● Can call View activities on UTF ● Can call external sites e.g. http: //www.google.com ● No Control returned to caller
- 22. Task flow Components Save point Restore ● Allow to restore application to previous state ● Supports Save for later functionality ● Only required where Restore needed
- 23. Task flow Components Parent ● Allows to trigger Action navigation of Parent view activity in ADF Region Control flow case ● Identifies how control will paas from one activity to another Wild-card ● Represents global navigation case
- 24.
- 25.
- 26. Task flow Templates ●You can create task flow templates for common activities in bounded task flows ● Common use case is error handler ● Best practice is to use template for all bounded task flows
- 27. How to ReuseTask flows in Different Application ● Create Deployment Profile ADF Library Jar ● Deploy as ADF library Jar ● Create Connection as File system in Resource Palette ● Drag and Drop from Resource Palette to your page and ADD libary path ● Complete Tutorial available at http: //www.baigzeeshan. com/2010/08/sharing-business- components-and-task.html
- 28. Tips to buildReusable Task Flows ● Build BTFs in seperate application then merge them into master app using ADF Lib Jar ● Use task flow with page fragments ● Use Input parameters ● Use Router activity as default ● Set conditional behaviour of UI components based on Input parameters e.g. read-only, show/hide ● Use dynamic regions
- 29. Demo Example ● Search Employees - Provides Search facility Secured, called as normal on Home page and as List of values on upload photo task flow ● View / Edit Employees Secured, Allows 'Managers' to edit and 'endusers' to view employee detail. Displayed as ADF region and deployed as ADF library jar ● Upload Photo - Task flow to upload employee photo Secured, Called as Dialog and later calling search flow in a model dialog ● Public Runs a flash movie on home page for all unauthenticated users for authenticated users displays graphs based on user type
- 31.
- 32. Congratulations...... You are nowTask flows Expert.... Thank you