The Inventory service

At the heart of our property management service lies rooms that are the representations of physical rooms that guests can reserve. They are organized in categories. A room category is a logical grouping of similar rooms. For example, we could have a Double Rooms category for all rooms with double beds. Rooms exhibit properties as per the code snippet that follows:

@Entity(name = "rooms")
public class Room {

  private long id;
  private RoomCategory roomCategory;
  private String name;
  private String description;

  @Id
  @GeneratedValue
  public long getId() {
    return id;
  }

  @ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.REFRESH}, fetch = FetchType.EAGER)
  public RoomCategory getRoomCategory() {
    return roomCategory;
  }

  @Column(name = "name", unique = true, nullable = false, length = 128)
  public String getName() {
    return name;
  }

  @Column(name = "description")
  public String getDescription() {
    return description;
  }
}

With the...