4.1 Prescriptive Approach and Reusable Code for Business Services

The J2EE platform defines a server-side model for development and deployment of services. However, the task of writing, reusing, and customizing the robust functionality needed for real-world business applications is left as an exercise for the members of each development team to figure out for themselves. In particular, the J2EE specifications do not prescribe an approach for:

• writing and enforcing business application logic in a central way

• reusing business logic in multiple applications

• accessing updatable views of business data tailored specifically to the task at hand

• maintaining and customizing the business functionality once the application is delivered.

From years of experience in building the E-Business Suite applications on the J2EE platform, Oracle knows that these are the activities where you'll spend the bulk of your time and effort when you build your own J2EE solutions. ADF Business Components is designed to provide a prescriptive approach to address the these challenging tasks, and offers a reusable library of software components and design time "plugins" to JDeveloper that make it easy to follow the time-tested approach they prescribe.

The ADF Business Components technology in Oracle ADF is the culmination of years of joint design and development work between the Oracle Applications, Oracle Tools, and Oracle Server Technologies divisions to pragmatically implement Oracle's vision for how well-architected, database-centric enterprise J2EE applications will be built now and in the future.

Along with the other layers of the overall Oracle ADF, ADF Business Components is the technology used daily by over 4000 of Oracle's own internal applications developers, and by several thousand external customers including Oracle partners. This means it is a proven solution you can count on, too.