super.setBegin(begin); super.setEnd(end);
setOccupationInterval(begin, end);
    public ExtensionSpaceOccupation(Space space, Extension extension, YearMonthDay begin, YearMonthDay end) {        super();                checkParameters(extension, begin, end, space);                checkExtensionSpaceOccupationIntersection(begin, end, extension);        setSpace(space);        checkPermissionsToMakeOperations();        setExtension(extension);                super.setBegin(begin);        super.setEnd(end);    }