Chapter 12. Building Entity Services Using Service Data Objects (SDOs)
In Chapter 10, oBay Introduction, we went through the process of defining our high level SOA blueprint. One of the key layers within this blueprint is the business services layer, which we further categorized into Entity, Functional, and Task-based services.
When it comes to implementing Task-based or Functional services, the SOA Suite provides a number of ways of implementing these (many of which are covered within the pages of this book), depending on the nature of the requirements. In addition, with SOA we have the flexibility of implementing these services pretty much in a language of our choice, a key driver often being the existing skill sets within our organization.
However, when it comes to Entity services, which typically represent data entities held in a relational database, apart from the database adapter, the SOA Suite provides limited functionality for implementing these types of services. Certainly...
