SE450: Dependency [2015/09/15]

file:Person.java [source] [doc-public] [doc-private]

package basics.dependency;
import java.util.Random;
final class Person {
  final private String name;
  public Person(String name) { this.name = name; }
  public String toString() { return "Person(" + name + ")"; };
}
class PersonFactory {
  private PersonFactory() {}
  static private Random random = new Random();
  static public  Person randomPerson() {
    return new Person(Integer.toString(random.nextInt()));
  }
}

   +---------------+
   |   <<static>>  |   <<creates>>   +--------+
   | PersonFactory |- - - - - - - - >| Person |
   +---------------+                 +--------+

This dependency indicates that PersonFactory mentions Person, but holds no references to Person objects.

Typical reasons for a dependency:

Person is returned by method
Person is a parameter of a method
Person is held in a local variable, but not a field