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This glossary supports the following titles:


SOA Design Patterns


Web Service Contract Design & Versioning for SOA


SOA Principles of Service Design

Service-Oriented Architecture: Concepts, Technology, and Design

Modern SOA Infrastructure: Technology, Design, and Governance
SOA with REST
Next Generation SOA: A Real-World Guide to Modern Service-Oriented Computing
SOA with .NET & Azure
SOA with Java
SOA Governance
SOA Security: Practices, Patterns, and Technologies for Securing Services
SOA and Cloud Computing: Practices, Patterns, Technologies


This glossary also supports the SOA Certified Professional (SOACP) program.

For more information, visit: www.soacp.com
and
www.soaschool.com




stateful (primary state condition)

A service is stateful when it is active and consuming additional memory via the temporary storage and processing of state (service activity-specific) data.

It is important to note that it is the service capability being invoked and its associated functionality that determines whether a service becomes stateful and the extent of a service’s statefulness (the extent of memory the service consumes as a result of state-related processing). When stateful, a service will typically be processing one or more of three types of state data:

• session data

• context data

• business data

The term “stateful” represents a primary state condition, the other being stateless. These conditions are associated with the Service Statelessness design principle that advocates the minimization of the stateful condition by incorporating state deferral and delegation options into the service design.




See also:

- Service Statelessness

- active (primary state)

- context (state information type)

- context data (context data type)

- context rules (context data type)

- passive (primary state)

- session (state information type)

- stateless (primary state condition)
The Prentice Hall Service-Oriented Computing Series from Thomas Erl
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