Service Data Objects (SDOs) have become a foundation technology for Service
Oriented Architecture (SOA). Recently, BEA, IBM, Oracle, SAP, Iona, Siebel,
and Sybase announced their support for an SOA-enabling framework
specification named Service Component Architecture (SCA). SD O provides the
primary data representation in this framework.
Although not addressed by the current SDO or SCA specifications, there's a
definite need for a generic data access service that operates in terms of
SDOs. The alternative to this service would be the tedious and error-prone
development of a custom mapping between the back-end data representation and
Service Data Objects.
The Relational Database Data Access Service (RDB DAS) obviates the need for
this custom development by providing a robust data access utility built
around SDO. Because of its tight integration with SDO, the RDB DAS ... (more)
Late last year, IBM Corp., and BEA Systems, Inc., introduced Service Data
Objects (SDO), a new data programming specification that complements existing
Java 2 Enterprise Edition technologies and enables service-oriented
architectures by providing uniform data access for a wide variety of service
and resource types. Not only does SDO enable a consistent approach to data
access, but it also provides features that simplify common application tasks,
such as allowing data browsing and update while the application is
disconnected from the data source.
In this article we explain how SD... (more)