A Developers Journey From Oracle EBS Forms to Oracle EBS ADF Pages Session ID# Thomas Korbecki oappsnet Partners

Transcription

1 A Developers Journey From Oracle EBS Forms to Oracle EBS ADF Pages Session ID# Thomas Korbecki oappsnet Partners

2 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

3 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

4 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

5 Where Do You Start

6 Where To Start Oracle JDeveloper Home Page

7 Where Do You Start Read White Paper General Understanding Watch Oracle Tutorial Video Description Redeveloping Oracle Forms in ADF Location

8 Where Do You Start Create Simple Application Follow Oracle s Tutorial Description Oracle Tutorial Location

9 What To Learn

10 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 Oracle Java Tutorial IBM Java Tutorial Location

11 What To Learn Groovy - Expression Language (EL ) Access Data/Methods Within The Application #{<Binding or Bean Name>.<Variable/Method> <Operation>} Description Introduction to Groovy Support in JDeveloper and Oracle ADF 11g Location

12 JDeveloper Tool What To Learn Tool Bar Projects Panel Object Navigation Data Control Panel UI Page Comparable to Forms Canvas Component Pallet Canvas Tool Pallet Structure Window Property Inspector Property Pallet Log Window

13 Do I Need To Take Any Formal Classes

14 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.

15 ADF Concepts New To You

16 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.

17 ADF Concepts New To You Module View Controller Desktop Browser-Based ADF Swing Office JSP JSF ADF Faces View MetaData Services (MDS) ADF Bindings Struts Browser-Based JSF/ADF Task Flow Controller Model Java EJB BAM BPEL Top Link Web Services ADF BC BI Essbase Portals Business Services Relational Data XML Data Legacy Data Package Applications 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

18 ADF Concepts New To You ADF vs. Oracle Forms ADF Oracle Forms View (UI) Rich Clients Web and Wireless Clients UI Logic Java UI Renderer Block UI Definition Contoller Controller Navigation Logic Model Data Block Definition Model Data Logic Record Manager Business Services SQL Interface

19 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.

20 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 ADF Faces Rich Client Demos Location

21 Controller ADF Concepts New To You 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 Task Flow Design Fundamentals Location

22 ADF Concepts New To You Object Life Scope Description Developer's Guide for Oracle Application Development Framework Location Understanding the Fusion Page Lifecycle

23 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.

24 Data Binding ADF Concepts New To You 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.

25 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.

26 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)

27 Location ADF Concepts New To You Guide ViewObjectImpl Class A view object is a base class for view objects Set Where By Clause Set Order By Clause ViewRowImpl Class A view object is a base class for view row objects Transient Values Managed Bean This is where you store all your UI based code that controls the page as well as call methods in the application module. 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

28 Debugging ADF Concepts New To You 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.

29 ADF vs. Oracle Forms

30 ADF vs. Oracle Forms Navigation First Page JDeveloper Oracle Forms Developer

31 ADF vs. Oracle Forms Database Connection JDeveloper Oracle Forms Developer

32 ADF vs. Oracle Forms Parameters JDeveloper Oracle Forms Developer

33 ADF vs. Oracle Forms Create Tables / View Objects JDeveloper Oracle Forms Developer

34 ADF vs. Oracle Forms Create Association Link JDeveloper Oracle Forms Developer

35 ADF vs. Oracle Forms Create View Link JDeveloper Oracle Forms Developer

36 ADF vs. Oracle Forms Create LOV JDeveloper 1. Create a read-only view 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 Oracle Forms Developer 1. Create a record group which is equivalent to a read-only view object in ADF 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

37 ADF vs. Oracle Forms Control UI Behavior Listeners & Java JDeveloper 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;

38 ADF vs. Oracle Forms Control UI Behavior Properties JDeveloper Oracle Forms Developer

39 Deployment

40 Compile Project Deployment JDeveloper Oracle Forms Developer

41 Deployment Define Deployment Profile JDeveloper Depends On Type Of Project Oracle Forms Developer There is no profile Stand Alone Application (WAR) UI Project Properties (EAR) Application Properties Consumed Application (ADF Library JAR File) UI Project Properties

42 Upload To Server Deployment JDeveloper JDeveloper Configure Application Deployment Configure IDE Connections (Application Server) WLS Deployment Tool Upload File To Web Logic Server (WLS) Run WLS Deployment Tool WLS Console Oracle Forms Developer FTP $XXX_TOP/forms/US chmod 755 Register the application in Oracle EBS Description Deploying Applications To WebLogic Server Using JDeveloper and WLS Console Location deployment_doc.pdf

43 Web Logic Server (WLS)

44 Web Logic Server (WLS) Local

45 Web Logic Server (WLS) Local

46 Web Logic Server (WLS) Setup DB connections Setup New Domain

47 Lessons Learned

48 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

49 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.

50 Questions? Comments?

51 THANK YOU Thomas Korbecki Download This Paper From