@Entity(name = "Flour")
	@Table(name = "Flour")
	public static class Flour {
		@Id
		@GeneratedValue(strategy = GenerationType.IDENTITY)
		private Integer id;
		...
	}

insert into Flour (description,name,type) values (?,?,?) returning id

insert into Flour (description, name, type) values (?, ?, ?) select scope_identity()

insert into Flour (description, name, type) output inserted.id values (?, ?, ?)