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Service Data Objects

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Service Data Objects is a technology that allows heterogeneous data to be accessed in a uniform way. The SDO specification was originally developed in 2004 as a joint collaboration between Oracle (BEA) and IBM and approved by the Java Community Process in JSR 235. Version 2.0 of the specification was introduced in November 2005 as a key part of the Service Component Architecture.

Relation to other technologies#edit

Originally, the technology was known as Web Data Objects, or WDO, and was shipped in IBM WebSphere Application Server 5.1 and IBM WebSphere Studio Application Developer 5.1.2.[1] Other similar technologies are JDO, EMF, JAXB and ADO.NET.

Design#edit

Service Data Objects denote the use of language-agnostic data structures that facilitate communication between structural tiers and various service-providing entities. They require the use of a tree structure with a root node and provide traversal mechanisms (breadth/depth-first) that allow client programs to navigate the elements. Objects can be static (fixed number of fields) or dynamic with a map-like structure allowing for unlimited fields. The specification defines meta-data for all fields and each object graph can also be provided with change summaries that can allow receiving programs to act more efficiently on them.

Developers#edit

The specification is now being developed by IBM, Rogue Wave, Oracle, SAP, Siebel, Sybase, Xcalia, Software AG within the OASIS Member Section Open CSA[2] since April 2007. Collaborative work and materials remain on the collaboration platform of Open SOA,[3] an informal group of actors of the industry.

Implementations#edit

The following SDO products are available:

There are open source implementations of SDO from:

References#edit

  1. ^ "Introduction to Service Data Objects". IBM. Archived from the original on 6 March 2021.
  2. ^ Activities and announcements | OASIS Open CSA
  3. ^ Home – Open SOA Collaboration
  4. ^ | Oracle Data Service Integrator

Specification versions and history can be found on

Categories Computer networkingJava specification requestsPersistenceService-oriented (business computing)

This article is mirrored from “Service Data Objects” on English Wikipedia, revision 1187629541, written by Wikipedia's contributors and licensed CC BY-SA 4.0. Editing it here creates a Quire copy with its own history.

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