Bug 317423 [Model] Get rid of the AbstractContainers like PartDescriptorContainer, ...
Some of the containers we defined where solely used by Application and our old Model-Contribution story and hence are "useless" now: * PartDescriptorContainer * BindingTableContainer Stuff I'm unsure why we have containers are: * TrimContributions * MenuContributions * ToolBarContributions but to me it looks like they are only used by Application-class so beside that I guess they are abstract, right?
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/menu/impl/MenuFactoryImpl.java
case MenuPackageImpl.TOOL_BAR_SEPARATOR: return (EObject)createToolBarSeparator();
			case MenuPackageImpl.MENU_CONTRIBUTIONS: return (EObject)createMenuContributions();
			case MenuPackageImpl.RENDERED_MENU: return (EObject)createRenderedMenu();
			case MenuPackageImpl.RENDERED_TOOL_BAR: return (EObject)createRenderedToolBar();
			case MenuPackageImpl.TOOL_BAR_CONTRIBUTION: return (EObject)createToolBarContribution();
			case MenuPackageImpl.TOOL_BAR_CONTRIBUTIONS: return (EObject)createToolBarContributions();
			case MenuPackageImpl.TRIM_CONTRIBUTION: return (EObject)createTrimContribution();
			case MenuPackageImpl.TRIM_CONTRIBUTIONS: return (EObject)createTrimContributions();
			default:
				throw new IllegalArgumentException("The class '" + eClass.getName() + "' is not a valid classifier"); 
		}
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object createFromString(EDataType eDataType, String initialValue) {
		switch (eDataType.getClassifierID()) {
			case MenuPackageImpl.ITEM_TYPE:
				return createItemTypeFromString(eDataType, initialValue);
			default:
				throw new IllegalArgumentException("The datatype '" + eDataType.getName() + "' is not a valid classifier"); 
		}
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated