Check is regions cross..

Hello. I writing my plugin for privating regions!
I need to check (before privating region) is region cross with any other privated region..
Region = 2 location (min,max).
What i have now:

Code (open) Code (close)

Code:

    public boolean checkIsRegionFree(Selection newRegion) {
        for (String region : config.getConfigurationSection("REGION").getKeys(false)) {
            Selection privatedRegion = new Selection(
                    TextLocation.parse(config.getString("REGION." + region + ".FIRST")),
                    TextLocation.parse(config.getString("REGION." + region + ".SECOND")));
            //return false if regions cross... But how to check it?! :-(
        }
        return true;
    }

Code:

    public class Selection {

        private Location first;
        private Location second;

        public Selection() {
        }

        public Selection(Location first, Location second) {
            this.first = first;
            this.second = second;
        }

        public Location getFirst() {
            return first;
        }

        public void setFirst(Location first) {
            this.first = first;
        }

        public Location getSecond() {
            return second;
        }

        public void setSecond(Location second) {
            this.second = second;
        }

        public boolean hasFirst() {
            return first != null;
        }

        public boolean hasSecond() {
            return second != null;
        }

        public boolean hasSelection() {
            return first != null && second != null;
        }

        public boolean isValid() {
            return first.getWorld().getName().equals(second.getWorld().getName());
        }
    }

 

And what is the problem?

 

@mine-care
I dont know how to check it..
Is regions cross..

Up..