Editable tables

Vaadin has a really cool feature that allows us to implement editable tables lightning fast. Let's say we have a table like this:

Table table = new Table();
table.setPageLength(0);

table.addContainerProperty("String", String.class, "");
table.addContainerProperty("Boolean", Boolean.class, false);
table.addContainerProperty("Date", Date.class, null);

table.addItem();
table.addItem();
table.addItem();

That is a simple table with three columns, each one storing properties of String, Boolean, and Date types. We have added three rows to it. This table will be rendered as follows:

Nothing's new so far. I said that it is lightning fast to create an editable table because it really is:

table.setEditable(true);

Take a look at the nice input components being automatically generated for us shown as follows:

Besides String, Boolean, and Date types, an editable table also renders Item types. Suppose we have a User class as follows:

public class User {
  
  private String login;
  
  private...