checkPermissionsToMakeOperations(); super.setBegin(begin); super.setEnd(end);
checkPermissions(); setOccupationInterval(begin, end);
    public PersonSpaceOccupation(final Space space, final Person person, final YearMonthDay begin,	    final YearMonthDay end) {	super();	checkParameters(space, person, begin, end);	setPerson(person);	setSpace(space);	checkPermissionsToMakeOperations();	super.setBegin(begin);	super.setEnd(end);    }