# PLEASE DO NOT EDIT THIS CODE
# This code was generated using the UMPLE 1.35.0.7523.c616a4dce modeling language!
# NOTE: Ruby generator is experimental and is missing some features available in
# in other Umple generated languages like Java or PHP

module Example

class Student


  #------------------------
  # MEMBER VARIABLES
  #------------------------

  #Student Attributes - for documentation purposes
  #attr_reader :number

  #Student Associations - for documentation purposes
  #attr_reader :mentor

  #------------------------
  # CONSTRUCTOR
  #------------------------

  def initialize(a_number, a_mentor)
    @initialized = false
    @deleted = false
    @number = a_number
    @mentor = nil
    did_add_mentor = set_mentor(a_mentor)
    raise "Unable to create student due to @mentor. See https://manual.umple.org?RE002ViolationofAssociationMultiplicity.html" unless did_add_mentor
    @initialized = true
  end

  #------------------------
  # INTERFACE
  #------------------------

  def set_number(a_number)
    was_set = false
    @number = a_number
    was_set = true
    was_set
  end

  def get_number
    @number
  end

  def get_mentor
    @mentor
  end

  def set_mentor(a_new_mentor)
    was_set = false
    if a_new_mentor.nil?
      #Unable to set_mentor to nil, as student must always be associated to a @mentor
      return was_set
    end
    
    existing_student = a_new_mentor.get_student
    if !existing_student.nil? and !self.eql?(existing_student)
      #Unable to set_mentor, the current @mentor already has a student, which would be orphaned if it were re-assigned
      return was_set
    end
    
    an_old_mentor = @mentor
    @mentor = a_new_mentor
    @mentor.set_student(self)

    unless an_old_mentor.nil?
      an_old_mentor.set_student(nil)
    end
    was_set = true
    was_set
  end

  def delete
    @deleted = true
    existing_mentor = @mentor
    @mentor = nil
    unless existing_mentor.nil?
      existing_mentor.set_student(nil)
    end
  end

end
end
# PLEASE DO NOT EDIT THIS CODE
# This code was generated using the UMPLE 1.35.0.7523.c616a4dce modeling language!
# NOTE: Ruby generator is experimental and is missing some features available in
# in other Umple generated languages like Java or PHP

module Example
require 'singleton'

class Mentor
  include Singleton

  #------------------------
  # MEMBER VARIABLES
  #------------------------

  #Mentor Attributes - for documentation purposes
  #attr_reader :name

  #Mentor Associations - for documentation purposes
  #attr_reader :student

  #------------------------
  # INTERFACE
  #------------------------

  def set_name(a_name)
    was_set = false
    @name = a_name
    was_set = true
    was_set
  end

  def get_name
    @name
  end

  def get_student
    @student
  end

  def has_student
    has = !@student.nil?
    has
  end

  def set_student(a_new_student)
    was_set = false
    if !@student.nil? and !@student.eql?(a_new_student) and self.eql?(@student.get_mentor)
      #Unable to set_student, as existing @student would become an orphan
      return was_set
    end

    @student = a_new_student
    an_old_mentor = !a_new_student.nil? ? a_new_student.get_mentor : nil

    unless self.eql?(an_old_mentor)
      unless an_old_mentor.nil?
        an_old_mentor.instance_variable_set("@student",nil)
      end
      unless @student.nil?
        @student.set_mentor(self)
      end
    end
    was_set = true
    was_set
  end

  def delete
    @deleted = true
    existing_student = @student
    @student = nil
    unless existing_student.nil?
      existing_student.delete
    end
  end

end
end