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{{Ecl_menu}}<h2>OSGi Services</h2>
Service Layer
The Service Layer provides a dynamic, concise and consistent programming
model for Java bundle developers, simplifying the development and deployment of service bundles by de-coupling the service’s specification (Java
interface) from its implementations. This model allows bundle developers
to bind to services only using their interface specifications. The selection of
a specific implementation, optimized for a specific need or from a specific
vendor, can thus be deferred to run-time (see [http://www.osgi.org/Release4/HomePage OSGi Service Platform]).
:A bundles can register and use services in OSGi. OSGi provides therefore a central registry for this purpose. A service is defined by a Java interface (POJI - Plain Old Java Interface) [http://www.vogella.de/articles/OSGi/article.html#OSGiintro_services].