OA Framework Basics

scarcehoseSoftware and s/w Development

Jul 14, 2012 (5 years and 5 months ago)

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OA Framework
Basics
3rd
April, 2009
Parag
Narkhede, Blink Consulting Pvt Ltd
1
India OAUG Webinar
Series
Blink Consulting
Private Limited

Blink Consulting is a dynamic and fast growing software
consultancy providing Business Information Systems
solutions, Business Intelligence Solutions and Application
Maintenance Outsourcing to Customers in diverse industries

Our Core Services consist of Strategy, Business
Architecture, Solution Delivery, Operate and Oracle e-
Business Consulting

Contact Information
INDIA –
PUNE
Blink Consulting India Pvt. Ltd., S. Number 131, Mumbai –
Pune
Highway Pune,
Maharashtra, INDIA +91 20 30637200
USA –
BOSTON
Blink Consulting Inc. 945 Concord Street Framingham, MA 01701 USA +1-917-873-9763
USA –
DALLAS
Blink Consulting Inc. 1400 Preston Rd, Suite # 400 Plano, TX 75093 US
A +1-972-665-9943
2
Agenda

What is OA Framework?

Why OA Framework?

OA Framework Architecture

MVC Architecture and its components

Profile Options

Which version of JDeveloper?

JDeveloper Structure

Development of Search page

Summary

Q & A
3
What is OA
Framework?

Oracle Application Framework
(OA Framework) is a proprietary
framework developed by Oracle Corporation for application
development within the Oracle E-Business Suite.

Available to customers for personalization, customizations and
custom-application development.

The OA Framework is a Model-view-controller (MVC)
framework built using J2EE (Java 2 Platform, Enterprise
Edition)
technologies.
4
Why OA Framework?
Advantages :

Enterprise-Grade Performance and Scalability

Improved End User Productivity

Highly extensible architecture

Browser Look and Feel (BLAF terminology) for all applications

Open industry Standards such as XML, HTML, Java, JSP,
SQL and Web Services.
5
OA Framework
Architecture
OA Framework architecture is based on Model-View-Controller (MVC)
design pattern.
6
Components of MVC
Architecture
Model:

Data

Implemented using Oracle Business Components for Java (BC4J).
1.
EO (Entity Object)
2.
VO (View Object)
3.
AM (Application Module)
View:

User Interface.

Implemented using an Oracle technology called UIX.
(UIX = User Interface XML).
Controller:

Code

User actions are handled by the OA Controller.
(Ex: Clicking SUBMIT button)
7
Interaction between
model,
view and controller
8
Controller Class
AM
VO
EO
Data base
HTTP Response
HTTP Request
HTML Page
Controller
View
Model
*AM-Application Module
*VO-View Object
*EO-Entity Object
Entity Object (EO)

Entity Object is based on database table or other data
source.

Entity Object contains attributes which represent database
columns.

All insert/update/delete (DML Operations) transactions go
through EO to database.
9
View Object (VO)

Two types
1. SQL based
2. EO based

Represents a query result.

Is used for joining, filtering, projecting, and sorting your business
data.

Can be based on any number of entity objects (EOs) and provides
access to EOs.
10
Application Module
(AM)

Container for VOs.

Every page must have a root application module.

Handles transactions.
11
View in MVC
Architecture
12
Controller (CO) in
MVC Architecture

Responds to user actions and directs application flow.

Model objects like EO and VO can't be accessed directly from the
Controller Class, except AM.

Contains methods such as
1. ProcessRequest: Fires when OAF page loads for the first time.
2. ProcessFormRequest: Fires when user submits the page.
(Ex: clicking SUBMIT button)
13
Controller Class (CO)
(Cont.)
14
MVC Architecture
15
Onion Architecture
of OA Framework

OA Framework can be extracted into a series of concentric layers,
like an onion.

Each layer only “knows”
about the layers below it.
16
Profile Options

FND: Personalization Region Link Enabled
Enables the "Personalize Region" links on a page if the
Personalize Self-Service Definition.

FND: Diagnostics
Renders the "About this page" link at the bottom of every OA
Framework page.

Refer to Metalink document id 275876.1 for more profile
options.
17
Which version
of JDeveloper?

Developer, must use the specific build of JDeveloper that
corresponds to their runtime environment.

Following table illustrates which JDeveloper ARU corresponds to
the runtime patch set installed in your 11.5.10 environment:
11.5.10 Runtime Patch Level
Corresponding JDeveloper
ARU AT
G.PF.H (3438354)
4045639
ATG CU1 (4017300)
4141787
ATG.CU2 (4125550)
4573517
11i.ATG_PF.H RUP3 (patch 4334965)
4725670
11i.ATG_PF.H RUP4 (patch 4676589)
5455514
11i.ATG_PF.H RUP5 (patch 5473858)
6012619
11i.ATG_PF.H.RUP6 (patch 5903765)
6739235

Refer to Metalink document id 275846.1 for more details.
18
19
JDeveloper
Structure
OAWorkspace.jws
OAProject1.jpr
OAProject2.jpr
.
.
<CUSTOM_TOP>.oracle.apps.<APPL_TOP_NAME>.schema.server
EO1
EO2
<CUSTOM_TOP>.oracle.apps.< APPL_TOP_NAME >.server
VO
AM
<CUSTOM_TOP>.oracle.apps.< APPL_TOP_NAME >.webui
PG
Level :1
Level: 2
Level: 3
JDeveloper
Structure (Cont.)
20
Development of sample search page
21
Summary

What is OA Framework and Why OA Framework?

MVC Architecture and its Components (Model-View-
Controller).

Model Consists of AM,VO,EO.

View is user interface which renders as HTML page.

Controller is Java class implementation which handles user
actions and responds to them.

3-Tier and Onion architecture of OA Framework.

Profile options.

JDeveloper version and its structure.

Development of search page.
22
23
Q & A
24
Thank You
E-mail:
pnarkhede@blinkconsulting.com