Modular Java: Enterprise OSGi with SpringSource dm Server

Many modern application servers claim to be based on OSGi
or are transitioning to OSGi. Among them, SpringSource
dm Server (“dm Server”) stands out as the only application
server that was built from the ground up with OSGi in mind.
What's more, the modularity afforded by OSGi is not only
an internal design facet, but is also extended to the
applications deployed on dm Server.

Unlike traditional application servers that carried a
bulk of Java EE functionality (whether you needed it or
not), dm Server supports the notion of “personalities”,
by which you can build an application server ala carte
to meet the needs of your applications.

As for the applications deployed in dm Server, they can
employ as little or as much modularity as they need. Even
though traditional monolithic WAR files can be deployed,
dm Server's OSGi underpinnings make it possible to deploy
applications through finer-grained modules that can be
maintained and updated independent of each other.

As we conclude the trilogy of OSGi sessions, we'll look at
how dm Server makes enterprise-class OSGi a reality.

About Craig Walls

Craig Walls is a Principal Engineer, Java Champion, Alexa Champion, and the author of Spring AI in Action, Spring in Action, and Build Talking Apps. He's a zealous promoter of the Spring Framework, speaking frequently at local user groups and conferences and writing about Spring. When he's not slinging code, Craig is planning his next trip to Disney World or Disneyland and spending as much time as he can with his wife, two daughters, 1 bird and 2 dogs.

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