Where Do You Start. • Read White Paper – General Understanding. • Watch
Oracle Tutorial Video. Description. Location. Redeveloping Oracle Forms in ADF
...
A Developers Journey From Oracle EBS Forms to Oracle EBS ADF Pages Session ID# 11993 Thomas Korbecki
oAppsNET Partners
Objectives • What Are The Challenges • Where To Start • What To Learn • Do I Need To Take Any Formal Classes • ADF Concepts New To You • ADF vs. Oracle Forms • Deployment • Web Logic Server (WLS) • Lessons Learned
ADF & Forms Experience • What Is Your Experience Level In Forms? • None • Beginner - Can Build Forms But Requires Assistance • Moderate - Can Build Fairly Complex Forms • Advanced - Can Build Complex Forms • Who Has Reviewed ADF Material • Who Has Attended Formal ADF Training • Who Has Tried To Build An ADF Application • Who Has Built An ADF Application
Challenges • Many • New Multipurpose Developer Tool • New Programming Language • New Scripting Language • New Development Architecture • New User Interface Components • New Debugging Techniques • New Run-Time Server (WLS) • New Deployment Methods & Tools • Time
Where Do You Start
Where To Start • Oracle JDeveloper Home Page http://www.oracle.com/technetwork/developer-tools/adf/overview/index.html
Where Do You Start • Read White Paper – General Understanding • Watch Oracle Tutorial Video
Description
Location
Redeveloping Oracle Forms in ADF
http://www.youtube.com/watch?v=TiqbW1CAMMc
Where Do You Start • Create – Simple Application • Follow Oracle’s Tutorial
Description
Location
Oracle Tutorial
http://docs.oracle.com/cd/E18941_01/tutorials/jdtut_11r2_55/jdtut_11r2_55_1.html
What To Learn
What To Learn? • Java Basics • Primitive data types • Data types / variables • Strings • Maps • Arrays / Lists • Variable scope
• Operator • Ternary operator • Relational and conditional operations • If statement • Loops • Try Catch Finally
Description
Location
Oracle Java Tutorial
http://docs.oracle.com/javase/tutorial/
IBM Java Tutorial
http://www.ibm.com/developerworks/java/tutorials/j-introtojava1/j-introtojava1-pdf.pdf
What To Learn • Groovy - Expression Language (EL ) Access Data/Methods Within The Application #{. }
Description
Location
Introduction to Groovy Support in JDeveloper and Oracle ADF 11g
http://www.oracle.com/technetwork/developer-tools/jdev/introduction-togroovy-128837.pdf
What To Learn • JDeveloper Tool Tool Bar Projects Panel Object Navigation
UI Page
Component Pallet
Comparable to Forms Canvas
Canvas Tool Pallet
Data Control Panel
Property Inspector
Structure Window
Property Pallet
Log Window
Do I Need To Take Any Formal Classes
Do I Need To Take Any Formal Classes • Java You can learn from on-line documentation • Groovy You can learn from on-line documentation • JDeveloper I would only recommend taking a formal class after reviewing all of the materials mentioned in this presentation and white paper. Oracle’s Developers Guide for Application Development Framework is really the only reference you need.
ADF Concepts New To You
ADF Concepts New To You • ADF Concepts What Is ADF? Oracle Application Development Framework (ADF) is a Java-based development tool (much like Oracle Forms is a PL/SQL-based tool) designed to take full advantage of Java Enterprise Edition or Java EE.
ADF Concepts New To You • Module View Controller Desktop ADF Swing
Browser-Based Office
JSP
JSF
ADF Faces
MetaData Services (MDS)
View
Browser-Based Struts
JSF/ADF Task Flow
Controller
ADF Bindings
Java
EJB
Model
BAM
Top Link
Relational Data
XML Data
BPEL
Web Services
ADF BC
Legacy Data
BI
Essbase
Portals
Package Applications
Business Services
Data Services
• The view layer contains the UI pages used to view or modify that data • The controller layer processes user input and determines page navigation • The model layer represents the data values related to the current page • The business service layer handles data access and encapsulates business logic
ADF Concepts New To You • ADF vs. Oracle Forms ADF
Oracle Forms View (UI) Java UI Renderer
Web and Wireless Clients
Rich Clients
UI Logic
Block UI Definition
Contoller Controller
Navigation Logic
Model
Model
Data Logic
Data Block Definition
Record Manager Business Services SQL Interface
ADF Concepts New To You • Model Entity Object is a database table on which DML operations are performed. In Oracle forms, this is the Record Manager. View Object can represent a single database table or a group of database tables linked together via relationships. View Link– is a relationship between two view objects that are joined by one or many database columns. Association “Link” is a relationship between two entity objects, which can be represented by a primary – foreign key relationship in a database.
ADF Concepts New To You • View View layer is the user interface that displays data from the Model layer.
ADF Faces provides over 100 rich components, including hierarchical data tables, tree menus, in-page dialogs, accordions, dividers, and sortable tables.
Description
Location
ADF Faces Rich Client Demos
http://jdevadf.oracle.com/adf-richclient-demo/faces/index.jspx
ADF Concepts New To You • Controller The Controller layer processes user input and determines page navigation. JDeveloper provides a declarative way, or Task Flow, to pass application control between different types of activities such as pages, methods within managed beans, transaction support, save points, or calls to other task flows. Unbounded Task Flow is essentially the entry point into your application or home page. There can only be one unbounded task flow per application. Bounded Task Flow is a modular and reusable application flow with a defined entry point (i.e. default activity), but can have zero to many exit points. Additional information about Task Flows are as follows:
Description
Location
Task Flow Design Fundamentals
http://www.oracle.com/technetwork/developer-tools/jdev/adf-task-flowdesign-132904.pdf
ADF Concepts New To You • Object Life Scope
Description
Location
Developer's Guide for Oracle Application Development Framework
Understanding the Fusion Page Lifecycle
ADF Concepts New To You? • Application Module This is a collection of business rules and transactions (view objects and view links defined in the Model layer) that are related to a certain function or use case. As for Oracle Forms, the Form itself is an application module because it is a collection of business rules and transactions that are combined together to archive a business requirement.
ADF Concepts New To You • Data Binding Data binding is a connection between UI components to data controls exposed via the Application Module. Once the UI consumes a View Object or method exposed in the data control, a binding is created between the Model layer and View layer. The following diagram illustrates the data binding concept.
ADF Concepts New To You • Managed Bean A managed bean is a reusable software component for Java that represents a manageable resource including components, applications or devices. They are used to encapsulate many objects into a single object (the bean), so that they can be passed around as a single bean object instead of as multiple individual objects. As comparison to Oracle Forms, a managed bean would contain all the PL/SQL related UI behavior.
ADF Concepts New To You • Where Do You Write Your Custom Java Code There are various Java classes and “levels” to write your custom code and based on the requirement it should be written at a certain “level”. Location Guide Application Module Application module class is the place where you can write your service-level application logic. Execute database command or block of PL/SQL Access Existing View Objects Access DBTransaction Object EntityImpl Class The EntityImpl class is the base class for entity objects which encapsulate the data, validation rules, and business behavior for your business domain objects. •doDML Operations (Like Triggers)
ADF Concepts New To You Location
Guide
ViewObjectImpl Class
A view object is a base class for view objects • Set Where By Clause • Set Order By Clause A view object is a base class for view row objects • Transient Values This is where you store all your UI based code that controls the page as well as call methods in the application module.
ViewRowImpl Class Managed Bean
• • • •
Initialize code for your session Call methods defined in the application module Conditionally Rendering Set variables
For Form Developers, this is where all your UI events triggers
ADF Concepts New To You • Debugging • System.out.println, or SOP is equivalent to dbms_output in PL/SQL. • ADF Logger is a logging mechanism, which is built into the ADF framework. • The JDeveloper tool provides declarative breakpoints that you can set at the ADF object level.
ADF vs. Oracle Forms
ADF vs. Oracle Forms • Navigation – First Page JDeveloper
Oracle Forms Developer
ADF vs. Oracle Forms • Database Connection JDeveloper
Oracle Forms Developer
ADF vs. Oracle Forms • Parameters JDeveloper
Oracle Forms Developer
ADF vs. Oracle Forms • Create Tables / View Objects JDeveloper
Oracle Forms Developer
ADF vs. Oracle Forms • Create Association Link JDeveloper
Oracle Forms Developer
ADF vs. Oracle Forms • Create View Link JDeveloper
Oracle Forms Developer
ADF vs. Oracle Forms • Create LOV JDeveloper 1. Create a read-only view
Oracle Forms Developer 1. Create a record group which is equivalent to a read-only view object in ADF
2. Associate read-only view to the view object 3. Link read-only view to an attribute within a view object & map the result set to that attribute
2. Create a list of values (LOV) mapping between the definition of the result set and the Data Block field. 3. Link the list of values to a data block field
ADF vs. Oracle Forms • Control UI Behavior JDeveloper Listeners & Java public void OrderNumberChangeListener(ValueChangeEvent valueChangeEvent) { if (orderNumberBind != null){ //Read Only this.orderNumberBind.setReadOnly(Boolean.TRUE); } }
Oracle Forms Developer Triggers (POST-CHANGE) & PL/SQL IF :OE_ORDER.HADERS.ORDER_NUMBER IS NOT NULL THEN app_item_property.set_property('OE_ORDER_HEADERS.ORDER_NUMBER', ENTERABLE, PROPERTY_OFF); END IF;
ADF vs. Oracle Forms • Control UI Behavior – Properties JDeveloper
Oracle Forms Developer
Deployment
Deployment • Compile Project JDeveloper
Oracle Forms Developer
Deployment • Define Deployment Profile JDeveloper
• Depends On Type Of Project • Stand Alone Application • (WAR) UI Project Properties • (EAR) Application Properties • Consumed Application • (ADF Library JAR File) UI Project Properties
Oracle Forms Developer
• There is no profile
Deployment • Upload To Server JDeveloper
Oracle Forms Developer
• JDeveloper • FTP • Configure Application Deployment • $XXX_TOP/forms/US • Configure IDE Connections (Application Server) • chmod 755
• Register the application in Oracle EBS • WLS Deployment Tool • Upload File To Web Logic Server (WLS) • Run WLS Deployment Tool – WLS Console
Description
Location
Deploying Applications To WebLogic Server Using JDeveloper and WLS Console
http://www.quovera.com/whitepapers/downloads/rmoug_2012_ deployment_doc.pdf
Web Logic Server (WLS)
Web Logic Server (WLS) • Local http://127.0.0.1:7101/console/
Web Logic Server (WLS) • Local http://127.0.0.1:7101/console/
Web Logic Server (WLS) • Setup DB connections
•Setup New Domain
Lessons Learned
Lessons Learned • • • • • • • • • • • •
Secure an ADF Architect Define Standards & Methodology Define Your Data Model Before Starting Use Standard UI Functionality Identify Reusable UI & Create A Separate Task Flow Define One Set Of Utility Functions Review WLS Error Logs – During Testing Cycle Check Application In Supported Web Browsers Save Often System Resources Are Low – Exit & Check Project Do Not Hibernate Your Computer With JDeveloper Multi-Language Support & Resource Bundle Standards
Lessons Learned • • • •
Test your application for Activation / Passivation Web browser and versions could act differently Always check for a null / blank variable before getting If you need to loop through a table in your page then use another iterator or createRowSetIterator • While searching the internet for a solution make sure the solution is based on your version of Jeveloper and WLS.
Questions? Comments?
THANK YOU Thomas Korbecki
[email protected] www.oAppsNet.com
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