/*PLEASE DO NOT EDIT THIS CODE*/
/*This code was generated using the UMPLE @UMPLE_VERSION@ modeling language!*/

package example;

public class Pupil
{

  //------------------------
  // MEMBER VARIABLES
  //------------------------

  //Pupil Attributes
  private String number;

  //Pupil Associations
  private Mentor mentor;

  //------------------------
  // CONSTRUCTOR
  //------------------------

  public Pupil(String aNumber, Mentor aMentor)
  {
    number = aNumber;
    boolean didAddMentor = setMentor(aMentor);
    if (!didAddMentor)
    {
      throw new RuntimeException("Unable to create pupil due to mentor. See https://manual.umple.org?RE002ViolationofAssociationMultiplicity.html");
    }
  }

  //------------------------
  // INTERFACE
  //------------------------

  public boolean setNumber(String aNumber)
  {
    boolean wasSet = false;
    number = aNumber;
    wasSet = true;
    return wasSet;
  }

  public String getNumber()
  {
    return number;
  }

  public Mentor getMentor()
  {
    return mentor;
  }

  public boolean setMentor(Mentor aMentor)
  {
    boolean wasSet = false;
    //Must provide mentor to pupil
    if (aMentor == null)
    {
      return wasSet;
    }

    //mentor already at maximum (7)
    if (aMentor.numberOfPupils() >= Mentor.maximumNumberOfPupils())
    {
      return wasSet;
    }
    
    Mentor existingMentor = mentor;
    mentor = aMentor;
    if (existingMentor != null && !existingMentor.equals(aMentor))
    {
      boolean didRemove = existingMentor.removePupil(this);
      if (!didRemove)
      {
        mentor = existingMentor;
        return wasSet;
      }
    }
    mentor.addPupil(this);
    wasSet = true;
    return wasSet;
  }

  public void delete()
  {
    Mentor placeholderMentor = mentor;
    this.mentor = null;
    if(placeholderMentor != null)
    {
      placeholderMentor.removePupil(this);
    }
  }


  public String toString()
  {
    return super.toString() + "["+
            "number" + ":" + getNumber()+ "]" + System.getProperties().getProperty("line.separator") +
            "  " + "mentor = "+(getMentor()!=null?Integer.toHexString(System.identityHashCode(getMentor())):"null");
  }
}
