Eclipse Plug-in Development Beginner's Guide - Second Edition

Using services and contexts

An IDE is more than a collection of its component parts, and the Eclipse 4 framework allows these to coordinate and communicate with each other.

In prior releases of Eclipse, the Platform (or PlatformUI) object would act as an oracle of all the known services in the runtime infrastructure, as well as providing hooks for accessing those services, for example:

IExtensionRegistry registry = Platform.getExtensionRegistry();
IWorkbench workbench = PlatformUI.getWorkbench();

Although this provides a programmatic way of making the services available, it has two key disadvantages:

• The provider of the interface is tightly coupled with the bundle containing the accessor, even if they are unrelated
• Introducing new services requires ...