Whiteboard Pattern

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Whiteboard Design Pattern is an OSGi service model, which influences the OSGi framework's service registry. Whiteboard pattern came into existence because of complicated and error prone nature of traditional model: The Listener Pattern (aka Observer Pattern).OSGi service model is a collaboration model which supports service registry. The service registry allows applications or bundles to register services, which are simple Java interfaces to implement different functionalities. The dynamic nature of the service registry is useful to track the services that can show up or leave at any time. Whiteboard Pattern is created to support such OSGi service model, which was not supported by Listener Pattern.

Source: https://en.wikipedia.org/wiki/Whiteboard_Pattern
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Tags:
Applicationprogramminginterface
Behavioralpattern
Manifestfile
OSGi
OSGiSpecificationImplementations
Observerpattern
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