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It’s a new World Oracle ADF for Forms Developers Stoyan Ivanov About the author • 13 years Oracle experience • Oracle Forms since SQL*Forms 3.0 • Large projects based on Forms for Bulgarian and international customers • Lots of database development knowledge Agenda • • • • Why not Oracle Forms & Reports JDeveloper and ADF as RAD tools How to choose technologies Developing an application Why not Oracle Forms & Reports • The requirement to run on the web • JInitiator and/or running Java applets might be prohibited in some environments and unwanted in others • Universal access vs. High Interactivity JDeveloper and ADF as RAD tools • • • • What do we mean by RAD What is a framework What is Oracle ADF Why is JDeveloper an IDE for RAD What do we mean by RAD • • • • • Visually oriented development An infrastructure Guided development Reduced coding Focus on maintenance as well as creation • Based on this definition Forms is a RAD tool RAD & J2EE • Historically RAD (Forms, Delphi, Visual Basic) are considered vendor-specific and closed • RAD systems has their own IDE and scripting language • No single RAD dominates the J2EE development space • J2EE runtime infrastructure and frameworks evolved independently from the tools What is a Framework • Toolkit of handy code and techniques for dealing with common use cases • Process implementing the best practice for solving a particular problem – Configuring, not coding – Runtime component – Design-time component What is a good framework • • • • • • • Functional depth Functional scope As declarative as possible Clean APIs Tools Acceptance Support • Oracle Forms is a framework Oracle Forms as a framework • • • • • • • • Database connection Transactions: commit, rollback, save points Database interaction: queries and DML Middle-tier data caching and transactional integrity User interface generation Navigation Security Validation What is Oracle ADF • Set of sub-frameworks to provide the key functions • Model-View-Controller design pattern Why is JDeveloper an IDE for RAD • It is specifically designed as a complete, integrated, and productive environment for endto-end development without paying additional plug-ins • You can code more than just Java in JDeveloper • It fully supports Oracle ADF • It is the best tool for creating an application that uses Oracle database and middleware suite How to choose the technologies • User Interface: JSF & JSP • DB Integration: ADF Business Components • Controller: JSF has build in page flow control Java Server Faces (JSF) • Component-based • Programming model – action handllers and listeners • Page layout • Device-independent • Build-in Controller layer ADF Business Components • Mapping database objects into Java • Well suited for the so-called “relational viewpoint” • Emphasizes declarative definition • Provides the ability to define basic validation rules • Exploit the power of the database • Provides a rich event model, much like the triggers Developing an application • Template “Web Application [JSF, ADF BC]” • Workspace containing two projects: – Model – ViewController Choosing the template Workspace containing two projects Create a Query object Create a Query object Create a Query object Create a Query object Create a Query object Create a Query object Create a Query object Create a Query object Create an Application Module Create an Application Module Create an Application Module Testing a Query Object Testing a Query Object Testing a Query Object Can I update the data? Create an Entity object Create an Entity object Create an Entity object Create an Entity object Create an Entity object Create an Entity object The Model so far Create a View object Adding the View to the Data Model Testing the View Changing attributes of the Entity Creating Associations Creating Associations Creating Associations Adding Validation Adding Validation Adding Validation Creating pages Displaying the data from the query to the page Displaying the data from the query to the page Testing the page Displaying the data from an Entity to the page Displaying the data from an Entity to the page Testing the page Adding Commit button Adding Create button Testing the page Adding more pages Use a JSF Navigation Case Linking the pages Add a CommandButton or CommandLink Selecting the action outcome Thank you!
