Data-Centric Applications with Vaadin 8

Implementing the delete operation

Let's implement the delete CRUD operation using a different approach. Instead of simply adding one single button for the operation, we'll add a delete button on each row in the Grid. The simplest way of adding a UI component inside a Grid is by using the addComponentColumn method:

public class CustomCrud extends Composite {    ...    private void initLayout() {        ...        grid.addComponentColumn(user -> new Button("Delete", e -> deleteClicked(user)));        ...    }    ...    private void deleteClicked(User user) {        showRemoveWindow(user);        refresh();    }    private void showRemoveWindow(User user) {        Window window = new RemoveWindow(user);        window.setModal(true);        window.center();        getUI().addWindow(window);    }}

The addComponentColumn method accepts ...