Enable OSGi Applications with Java EE 7 technologies
You can enable OSGi Applications with key Java™ Platform, Enterprise Edition (Java EE) 7 technologies. WebSphere® Application Server Liberty Version 8.5.5.6 and later, is a production ready server certified for Java EE 7 Full Platform.
To achieve zero migrations, new features are created and existing features remain unaltered. For example, when support for servlet 3.1 was added, a servlet-3.1 feature was created, and servlet-3.0 was kept to ensure behavior did not change for an existing server deployment.
In an environment before Java EE 7 support, you were required to configure blueprint-1.0, or something that depends on it, to be able to deploy OSGi applications. You then either configured other OSGi-specific features, like wab-1.0, or generic ones, like jpa-2.0, to get other capabilities.
- Decide you want to deploy OSGi Bundles.
- Decide what technologies you want to use to implement those OSGi Bundles.
Telling the server you want to deploy OSGi Bundles
<featureManager>
<feature>osgiBundle-1.0</feature>
</featureManager>
Adding
the osgiBundle-1.0 feature enables OSGi Bundles to be deployed as part of an OSGi
application.Telling the server what component models you want to use
<featureManager>
<feature>osgiBundle-1.0</feature>
<feature>servlet-3.1</feature>
</featureManager>
For
more information, see OSGi Web Application Bundles and OSGi Http Whiteboard.<featureManager>
<feature>osgiBundle-1.0</feature>
<feature>servlet-3.1</feature>
<feature>jpa-2.1</feature>
</featureManager>
For
more information, see Accessing data using Java Persistence API .<featureManager>
<feature>osgiBundle-1.0</feature>
<feature>servlet-3.1</feature>
<feature>jpa-2.1</feature>
<feature>blueprint-1.0</feature>
</featureManager>
Which Java EE 7 component models are supported?
You can see the full list of Java EE 7 technologies that are enabled for OSGi applications.