Plug-in Mechanism of Eclipse

Eclipse platform is built on OSGi framework.

Eclipse Plugin framework is pretty complex. However, the general ideas behind is very simple. In this post, the simple idea of how a plugin works is explained by using a diagram. Then a simple Eclipse Plugin is created to explain how to add a menu item to menu bar.

In the Eclipse model, each plug-in works above Eclipse Platform. Each plug-in may be related to another plug-in by one of two relationships:

1. Dependency. In the diagram above, Plugin A is dependent on Plugin B.
2. Extension. In the diagram above, Plugin A extends Plugin C.

Category >> Architecture & Design  
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<pre><code> 
String foo = "bar";
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