Applications based on JavaServer Faces (JSF) technology require a data access method that supports the disconnected Web model. Such dynamic Web applications typically access data sources and are able to create, read, update, and delete data dynamically. This product offers a simple data access paradigm with the Faces components, a convenient and robust data access technology called Service Data Objects (SDO) (referred to as WDO for WebSphere® Application Server version 5.x) that enables you to avoid persistent objects and to deal exclusively with data. Service Data Objects technology is:
You can still use other data access methods with Faces components, including data access beans and Web services; however, SDO is optimized for Web applications, in particular dynamic Web applications that use JSF technology. These SDO capabilities supplement the currently available object-oriented data access mechanism provided by EJB, and the data-centric, but connected, mechanism provided by direct use of JDBC.
The SDO data sources are created automatically for you when you define data sources on Faces JSP pages using the data access components in the Palette view or in the Page Data view: