All code related to Part 4 of my series on Vaadin Grid

VaadinGrid-4.1.java

//Sets the grid editor to be enabled
grid.setEditorEnabled(true);

VaadinGrid-4.2.java

       // Setting the field group
        grid.setEditorFieldGroup(getFieldGroup());

	/**
	 * @return
	 */
	private FieldGroup getFieldGroup() {
		BeanFieldGroup<VehicleInfo> beanFieldGroup = new BeanFieldGroup<VehicleInfo>(
				VehicleInfo.class);
		beanFieldGroup.addCommitHandler(new CommitHandler() {

			/**
			 * 
			 */
			private static final long serialVersionUID = 6062316515368687380L;

			@Override
			public void preCommit(CommitEvent commitEvent)
					throws CommitException {

			}

			@Override
			public void postCommit(CommitEvent commitEvent)
					throws CommitException {

				Notification.show("Saved Successfully!!",
						Type.TRAY_NOTIFICATION);

			}
		});

		return beanFieldGroup;
	}

VaadinGrid-4.3.java

        //Customizing the editor fields
        grid.getColumn("manufacturer").setEditorField(
				getComboBox("Manufacturer is required!",
						Arrays.asList(Manufacturer.values())));

	/**
	 * @return
	 */
	private Field<?> getComboBox(String requiredErrorMsg, Collection<?> items) {
		ComboBox comboBox = new ComboBox();
		comboBox.setNullSelectionAllowed(true);
		IndexedContainer container = new IndexedContainer(items);
		comboBox.setContainerDataSource(container);
		comboBox.setRequired(true);
		comboBox.setRequiredError(requiredErrorMsg);
		return comboBox;
	}