Get e4 service without injection
e4, eclipse, java, rcp
Solution
If you have the `IEclipseContext` you can get objects using:
ECommandService commandService = eclipseContext.get(ECommandService.class);
`IEclipseContext` can be injected.
You can create your own objects using `ContextInjectionFactory` which will do DI on the object for your:
MyClasss myClass = ContextInjectionFactory.make(MyClass.class, eclipseContext);
or you can do injection on an existing class instance with:
ContextInjectionFactory.inject(myClass, eclipseContext);
In a view or editor you can get the Eclipse Context from the view / editor site using:
eclipseContext = ((PartSite)getSite()).getContext();
But `PartSite` is an internal class so it really should not be used.
Problem
I'm trying to adapt an Eclipse RCP 3.x application to use some facilities from e4. For this reason, there is no e4xmi file. In particular, I need to get access to some services: ``` public class RunModeService { @Inject private static ECommandService commandService; @Inject private static EHandlerService handlerService; ... } ``` It would appear that if I instantiate the class myself (as I am doing) then none of the injection takes place. Is it possible to get hold of these services another way? If so, I can begin to hook into e4 and DI, by creating a command whose handler is instantiated by the framework and in which injection occurs.