Stateful Service-Oriented Architectures Using Mule JavaSpaces/GigaSpaces

Stateful SOA applications are distributed applications that require
integration with each other on two dimensions: communication and state. Many
workflow scenarios fall into this category, as well as distributed computing
applications. Normally, state iz shared through a centralized resource -
such as a file system or a database which often creates a scalability and
performance bottleneck. Maintaining consistency in such environments also
requires the use of a distributed transaction coordinator with an XA
interface, which significantly impairs performance. Typical deployment
environments require three separate sub-systems: messaging, database and
transaction coordination, which significantly add to the complexity of such
environments from a programming perspective (complexity of APIs and number
of APIs). From a deployment perspective, maintaining high availability in
such systems often involves integration of separate high availability
solutions for each of the three sub-systems. From a cost and licensing
perspective, this approach can be relatively costly as it introduces a need
for multiple licenses, often from different vendors. This lack of efficiency
also results in a requirement to use additional costly hardware resources to
meet the application's scalability and performance requirements."

You can find more details on this approach in the following paper:

Stateful Service-Oriented Architectures Using Mule and
<http://www.gigaspaces.com/download/GigaSpaces-Mule_Enterprise_Service_Bus_f
or_Stateful_Service-Oriented_Architectures.pdf>  GigaSpaces

You can try a free version using the following url:
http://mule.codehaus.org/JavaSpaces

Nati S
CTO GigaSpaces <http://www.gigaspaces.com>
"Write Once Scale Anywhere"


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