@Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final AttendeeImpl other = (AttendeeImpl) obj;
        if ((this.attendID == null) ? (other.attendID != null) : !this.attendID.equals(other.attendID)) {
            return false;
        }
        return true;
    }