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ADF – OAF Who Cares? You Do! Oracle Applications Framework /
Application Development Framework - Which way do I go?
Introductions
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Who am I and why am I here?
Audience:
Development Management
OAF Developers
ADF Developers
With the emergence and acceptance of the next generation Fusion
technology middleware stack there is confusion between the technologies
Oracle Applications Framework (OAF) and Oracle Application Development
Framework (ADF) among Oracle developers especially for the people who
are developing extensions for the Oracle E-Business Suite of Applications
11i/R12. Both frameworks are Oracle technologies for developing web
based User Interface with Jdeveloper. We will review OAF and ADF help you
decide which way to go.
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Overview
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Oracle Applications Framework (OA Framework or OAF) is a
proprietary framework developed by Oracle Corporation for
application development within the Oracle E-Business Suite (EBS).
The framework is also available to customers for personalizations,
customizations and custom-application development.
The OA Framework is a Model-view-controller (MVC) framework
built using Java EE technologies.
OAF (Oracle Applications Framework)
OA Framework Benefits
Declarative application development
Rapid Development environment
Consistent & compelling UI
Personalizations framework
Extensible and customizable
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Technology Stack Components
BC4J – Business Components for Java (Model)
UIX – Java components for representing UI
OA Extension - Build declarative UI for UIX
Extension to Jdeveloper
Metadata resides in database or XML files
OA Framework – The composite of all these technologies
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The figure below represents the architecture of the Oracle Applications
Framework.
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Model - The Model is where the application implements its business
logic. All the BC4J components in OAF comes under Model like AM
(Application Module), VO (View Object), EO (Entity Object), VL (View
Link) & AO (Association Object).
View - The View is where the application implements its user
interface, View means the UI (User Interface) that is visible to users.
Controller - The controller is where the application handles user
interaction and direct business flow. Controller is a simple java class
file that contain method for initial page request and post back
request.
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Examples of OAF
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Applications Development Framework
ADF (Application Development Framework)
Oracle ADF is an end-to-end Java EE framework that simplifies application
development by providing out-of-the-box infrastructure services and a
visual and declarative development experience.
The ADF framework is part of Oracle's award-winning JDeveloper 11g
development environment.
Oracle ADF provides infrastructure support as part of the framework, so
that developers can concentrate on the actual application development.
The integrated tool is very useful for rapid application development.
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Oracle ADF implements the MVC design pattern. The ADF framework provides all
the layers of this popular architecture (MVC) and provides solutions in the
following areas:
Object-Relational Mapping (ORM)
Data persistence layer
Reusable controller layer
Rich user interface based on JSF technology
Data binding mechanism with the UI layer
Security features
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Key Features of Oracle ADF Integrated development environment: Oracle ADF comes
bundled with JDeveloper. So JDeveloper works as a perfect tool for ADF application development using visual and declarative approach. It minimizes the development effort.
Vendor neutral: Oracle ADF is vendor neutral. The Oracle ADF runtime can be used with any J2EE compliant application server.
Technology support: Oracle ADF provides different layers for J2EE application development. The layers can be developed using different technologies. So the Oracle ADF is also technology neutral.
Composite end to end solution: Oracle ADF provides support for complete end to end development of J2EE application. So the developers can completely concentrate on the development work instead of the tool or technology selection.
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Oracle ADF Architecture Oracle ADF has a separate model layer and business service layer
to implement service oriented architecture. So we can define the
Oracle ADF architecture as MVC model with a business service
layer. Here are the four layers of ADF architecture:
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Business Service layer: This layer handles data from various sources and business
logic.
Model layer: This layer does not handle business logic directly; rather it provides an
abstract layer on top of the business service layer. This particular design pattern helps
the view and controller to work with various business service implementations.
Controller layer: It controls the web application flow.
View layer: It provides the user interface.
The figure below represents the core architecture of the Oracle ADF framework. Different layers and their interaction are shown as an example. The components in
different layers can be changed per the application requirement.
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Business Service Layer
Interaction with data persistence layer
Object-relational mapping
Transaction management
Business logic execution
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The business service layer is an additional component in the Oracle
ADF framework. ADF provides the flexibility to implement this layer
using any technology. Some of those technologies are illustrated in
the diagram. This layer manages following tasks: -
Model Layer
Data Controls: It provides abstraction on top of business service layers
Data Bindings: It exposes data control methods to the UI layer.
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The model layer provides the single interface to connect to any
business service. This model layer in the ADF architecture does not
handle business logic itself, rather provides the abstraction on top of
the business services. So the flexibility of implementing any
business service is a great advantage with ADF. The model layer in
ADF is also called 'ADF binding'. It has following components: -
Controller Layer
JSF controller
ADF controller
ADF controller extends the functionality of JSF controllers.
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The controller layer is responsible for handling application flow and
user input. The navigation rules are defined on a diagram to manage
application flow. Here are the two types of controllers used in web-
based applications.
View Layer
The view layer is the front-end of an application.
The front-end layer can be a desktop application, mobile
application or web-based application.
The multichannel support of the Oracle ADF framework is very
useful for developing any type of application.
Oracle ADF provides more than 150 Ajax-based, ready-made JSF
components for creating dynamic web interfaces.
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Oracle ADF Framework Benefits
Support for visual and declarative view and controller
development
Various options to build business service layers
End-to-end solution for all the Java EE layers
Technology and platform independence
Metadata driven development
Support for reusability and flexibility
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Following are some of the benefits of Oracle ADF: -
Oracle ADF Essentials
Oracle ADF Essentials is a free packaging of key
technologies from the Oracle Application Development
Framework that can be used to develop and deploy
applications without licensing costs.
Oracle ADF Essentials is provided with specific
instruction and certification for deploying applications
built with it on the open-source Glassfish server.
The ADF Essentials license doesn’t restrict deployment
to a specific server.
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Some of the key capabilities of Oracle ADF Essentials include:
Ajax and HTML5 enabled UI components
Reusable task-oriented controller layer
Declarative binding of UI to business services
Declarative relational database access layer
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Functionality not included in Oracle ADF Essentials (Requires full version of Oracle ADF)
Oracle ADF Mobile
Oracle ADF Desktop Integration
Oracle ADF Security
Oracle ADF Web service data control
Oracle ADF Remote task flows
Oracle ADF Business Component’s Service Interfaces
Oracle ADF Data Controls for BI
Integration with Oracle Fusion Middleware
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www.eistech.com
Same version of JDeveloper is used to build both Oracle
ADF Essentials applications as well as applications that
leverage the full Oracle ADF.
From a licensing perspective, there are no limitations on
deploying on any Java EE server.
Examples of using ADF
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Now that we have the basics – which way do I go?
Conclusion If you want to integrate your extensions tightly with the E-Business
Suite, you should use the OAF Release 12 technology stack.
If your application does not need to integrate with the
E-Business Suite, or doesn’t require any of the E-Business Suite-specific
capabilities, you should use ADF 10g with SOA based integration with E-
Business Suite.
If you are building a stand-alone application that does not need to
integrate with the E-Business Suite, and you need an AJAX-style rich
client user interface, you should use ADF 11g.
Source – OAF vs ADF by Datadrug 4/23/13
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More Information
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More Information
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More Information
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ADF Integration & Development • My Oracle Support note #563047.1 Using Oracle Application
Framework (OAF) and Application Development Framework (ADF)
• My Oracle Support note #974949.1 Oracle E-Business Suite Software Development Kit for Java (Includes AppsDataSource, Java Authentication and authorization Service) Readme – Patch 9863609
• Oracle Magazine November/December 2013 “The Next Big Wave” Oracle ADF Mobile by Frank Nimphius
• Shay Shmeltzer – To ADF or to OAF or Can I use ADF with Oracle E-Business Suite ….. Blogs.Oracle.com/Shay – Director of Product Management for Oracle Java Development Tools
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