package dk.daoas.fulddaekning;

public abstract class Constants {
	
	private static Constants singleton = null;

	abstract public double getLatitudeMargin();
	abstract public double getLongitudeMargin();
	
	abstract public double getMaxDistance();
	
	abstract public int getMinPostnr();
	abstract public int getMaxPostnr();
	
	abstract public String getTableExtension();
	
	
	public static Constants getInstance() { //Singleton-ish 
		return singleton;
	}
	
	public static void init(String distributor) {
		
		if (distributor.equals("DAO")) {
			singleton = new DaoConstants();
		} else if (distributor.equals("BK")){
			singleton = new BKConstants();
		} else {
			System.out.println("Ukendt distributor: " + distributor);
			System.exit(0);
		}
		
	}
	
	
}