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eclipseeclipse-plugineclipse-rcp

Programmatically get all extensions contributing to an extension point in Eclipse

For example, I want to get all id's value of menus that contribute to the extension point: org.eclipse.ui.menus

I can retrieve it by using the API IExtensionRegistry, IExtension, but I need to iterate over the tree of IConfigurationElement to get the id's value for each menu, which is not a pleasant thing to do.

Is there a better API in eclipse for doing this task?

Solution

  • The IExtensionRegistry is the correct API for this.

    The simplest call to get a simple array of all the extension point declarations is:

    IExtensionRegistry registry = Platform.getExtensionRegistry();

IConfigurationElement[] elements = registry.getConfigurationElementsFor("org.eclipse.ui.menus");

    The structure of the children of the main IConfigurationElement depends on the individual extension point. You have to deal with that in your code.