Multireferencing Example

• The following code

class Employee{
  protected String firstName;
  protected String lastName;
  protected String title = "Worker Bee";
  protected Employee manager;

  public Employee (String first, String last,
                   Employee mgr){
    firstName = first;
    lastName = last;
    manager = mgr;}

  public String getTitle() {
    return title;
  }
  public void setTitle(String newTitle) {
    title = newTitle;
  }

  public String getFirstName() {
    return firstName;
  }
  public String getLastName() {
    return lastName;
  }
  public String getManager() {
    return manager;
  }
}

Employee rob = new Employee("rob", "englanger", null);
rob.setTitle("Slave Driver");
Employee ben = new Employee("ben", "jones", rob);
Employee andrew = new Employee("andrew", "smith", rob);
Employee lorraine = new Employee("lorraine", "white", rob);
  

• is sent as:

<rob id="rob">
  <firstName>rob</firstName>
  <lastName>englander</lastName>
  <title>slave driver</title>
</rob>
<ben>
  <firstName>ben</firstName>
  <lastName>jones</lastName>
  <title>worker bee</title>
  <manager href="#rob"></manager>
</ben>
<andrew>
  <firstName>andrew</firstName>
  <lastName>smith</lastName>
  <title>worker bee</title>
  <manager href="#rob"></manager>
</andrew>
<lorraine>
  <firstName>lorraine</firstName>
  <lastName>white</lastName>
  <title>worker bee</title>
  <manager href="#rob"></manager>
</lorraine>