Assigned generator class in sleep annotations

Question

Hibernate is new here. I am working on a simple Hibernate mapping file. When I use the xml approach, I set the generator class for assignment. There is a certain logic that needs to be checked before assigning an employee identifier, so I cannot generate it automatically.

<id name="id" type="string" column="emp_id">
        <generator class="assigned">
        </generator>
</id>

But I am also studying the type of annotation, and the annotation seems to be underway now when the scope moves away from configuration files. But I can not find the type of generation according to the assigned value

public class Employee{
 String id; 
 @column(name="emp_id", unique=true)
 public String getID(){
  return id;
 }
}

Does this mean that I do not need to add a sequence generator annotation when it is assigned? Thanks

Answer 1

@Id, , . @GeneratedValue, , , hibernate .

@Id
String id;