package gve.calc.packaging;


  Each package should have a PackageDescriptor subclass in it,
  called bla.bla.bla.PackageInfo.
 
  Each PackageDescriptor subclass should have a zero argument constructor.
 
  To collect:
  info about which things have to be placed in the "Insert->New xxx" menu
  Each PackageDescriptor subclass should have a
 	
public static PartDescriptor [] getParts()
  method.
 
public abstract class PackageDescriptor {
	abstract public PartDescriptor [] getParts();

	
 Get an instance of the PackageInfo class of the given package. 
	
	public static PackageDescriptor get(String pkgname) {
		try {
			return (PackageDescriptor)Class.forName(pkgname+".PackageInfo").getConstructor(null).newInstance(null);
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	
 Returns full package name, e.g. "gve.calc.formula" 
	public String getName() {
		String name = getClass().getName();
		return name.substring(0,name.lastIndexOf('.'));
	}
}