Prototype – Implementação
public class ShapeCache {
private static Hashtable<String, Shape> shapeMap = new
Hashtable<String, Shape>();
public static Shape getShape(String shapeId){
Shape cachedShape = shapeMap.get(shapeId);
return (Shape) cachedShape.clone();
}
public static void loadCache() {
Circle circle = new Circle();
circle.setId("1");
shapeMap.put(circle.getId(),circle);
Square square = new Square();
square.setId("2");
shapeMap.put(square.getId(),square);
Rectangle rectangle = new Rectangle();
rectangle.setId("3");
shapeMap.put(rectangle.getId(), rectangle);
}
}