1. Oracle ADF Introduction
Prepared By
Er. Sandeep Sharda
Sr. Member Technical Staff
Oracle.

2. Oracle ADF
Motivation – Challenges building J2EE apps
 Building J2EE applications can be complex.
 Development time can be extensive.
 Choosing and implementing appropriate design
patterns can be overwhelming.
 “Do it yourself” applications often repeat existing
application code.
 A large portion of “do it yourself” code is dedicated to
common tasks.
 The more code you write, the greater the chance of
errors.
 An application framework is needed.

3. Oracle ADF
Introduction
 Reduces the complexity of J2EE development by
providing visual and declarative development
 Increases development productivity
– Less coding, more reuse
– Focus on the application, not the “plumbing”
 Provides a flexible and extensible environment by
allowing multiple choices and development styles
 Encourages J2EE best practices by implementing
standard J2EE design patterns

4. Oracle ADF
End-to-end J2EE Framework
 Implements standard J2EE best practices
 Model-View-Controller (MVC) design pattern
 Focus on the application, not the “plumbing”
 Consolidation and evolution of previous frameworks
Business Services
Web and Wireless ClientsRich Clients
Model
Controller

5. Oracle ADF
Visual and Declarative Development
 End-to-end Application Development
– J2EE & Services
 Visual
– UML modelers
– Structure pane
 Declarative
– Structure pane
– Property inspector
 Code View/Design View Synchronization
– No separate generation step - always synchronized
– Underlying code always accessible

6. Oracle ADF
J2EE Architecture (Simplified)
Enterprise
JavaBeans
ADF Business
Components
Web Services
Business ServicesClients
Java Objects
Database

7. Oracle ADF
No Standard API for Client Binding
Enterprise
JavaBeans
ADF Business
Components
Web Services
Business ServicesClients
Java Objects
Database
JDBC?

8. Oracle ADF
ADF Model
 Data Controls
 Data Binding
 JSR-227: “A Standard Data Binding & Data
Access Facility for J2EE”
Web
Service
TopLink
EJB
Java
Class
Business
Component
Model

9. Oracle ADF
ADF Model Architecture
 Data control: describes the values and actions
defined by the business service
Client
Bindings
Data Control
Business Service
 Bindings: define how UI
components use the
values and actions in
the data model

10. Oracle ADF
ADF Model Architecture
 Decouples client and business service layers
 Client code contains no references to the
business service
– Better design practice
– Code is more maintainable
 Architecture can be extended to add more
types of business services

11. ADF BC High-level architecture
Payment
Plan Mgmt
HTML, Java, and
XML Interfaces
SlowPaying
Customers
Late
Payments
Customer
Bill
Payment
View EntityApplication
Business
Logic
Data Presentation
& Manipulation
Task-Based
App Service

12. ADF BC Application
Database
Ord
Customer
Entity Objects
Customer
Order
Top
Customers
Pending
Orders
View Objects
Application Module

13. Start with
database tables

14. Entity objects encapsulate
business rules, logic,
defaults in a consistent
way for a table

15. View objects
encapsulate SQL queries
to project, join, filter,
order data for external
client interaction

16. Application module defines data
model of view object usages for a
complete application use case

17. UI works with the
application module as
backend business service

18. As you build new
applications, underlying
components are reusable

19. ADF – Productivity With Choice
ADF UIX
ADF Bindings
ADF Data Control
ADF Business
Components
Service Object
ADF Business
Components
Query Object
ADF Business
Components
Entity Object
Swing / JClientADFMetadataServices View
Controller
Model
Business
Services
Swing / JClient JSP ADF UIX
JSF/ADF
FACES
Rich Client Web / Wireless
Struts/JSF
ADF Bindings
ADF Data Control
Java
Classes
EJB
Session
Beans
Web
Services
ADF Business
Components
Service Object
JDBC
EJB
Finders
TopLink
Queries
ADF Business
Components
Query Object
Data
Access
ADF Business
Components
Entity Object
Java Classes EJB Entity Beans
TopLink Mapping
Persistent
Business
Objects
ADFMetadataServices

20. ADF Faces
 Built on top of JSF APIs
 A large component set >100 different components
 Far more advanced and interesting components
– Partial-page rendering, etc.
 ADF Faces skins (Look and Feel)
 ADF Data binding
 Open Source

21. ADF Faces

22. ADF Faces
 ADF Faces also includes many of the framework
features most needed by JSF developers today:
– File upload support is integrated at a component
level
– Client-side validation is automatically derived from
Validators and Converters for an improved user
experience
– A pageFlow scope makes it easier to pass values
from one page to another
– A new hybrid state saving strategy gives developers
the best of both client and server-side state saving

23. JSF Architecture
with ADF
 EL accesses “bindings” object
to value bind UI components
 ADF “bindings” object is set
through ADF Filter in web.xml
 Bindings object accesses ADF
Binding container, which then
accesses DataControl
 Business Services provide
access to various data sources
ADF “bindings” Object
ADF Binding
Renderer
UI Component Expr. Language
JSF Page
RDBMS
ADF DataControl
Business
Service 1
Business
Service 2
Business
Service 3
XML
URL
WS

24. Demonstration
A Web Application based on ADF Faces
1. Created ADF Business Components model
2. Layout flow
3. Made Edit page

25. Thank you