In the "Factory Pattern," what does the following code snippet accomplish?

public static Shape getShape(ShapeType type, float param1, float param2) {
   if(type == ShapeType.CIRCLE){
      return new Circle(param1);            
   } else if(type == ShapeType.RECTANGLE){
      return new Rectangle(param1,param2);
   } else if(type == ShapeType.SQUARE){
      return new Square(param1);
   }
   return null;
}