Java Enums - Switch 语句与 Enums 上的访问者模式 - 性能优势?

Later I realised of separating the information from logic, and hence created another class and moved the Enum Shape from GameObject to this new class GraphicModel, and instead of having switch-case there, I implemented constant-specific methods. And yes I did put proper import statements in either class after this modification.

public class GraphicModel {
    public void drawGraphicFromObject(GameObject gameObject) {
        gameObject.getShape().draw();
    }

    public static enum Shape {
        // This method is not public, instead is only called by GraphicModel
        abstract void draw();

        SHAPE1 {
            @Override
            void draw() {
                // some transformations
            }
        },
        SHAPE2 {
            @Override
            void draw() {
                // Some different transformation
            }
        },
        SHAPE3 {
            @Override
            void draw() {
                // Yet another transform
            }
        },
        .
        .
        .
        .
        UNKNOWN {
            @Override
            void draw() {
                // 
            }
        };
    }
}

后来我什至按照建议这里

那么，我需要知道的是哪种实施方式更有效?当然，为了在编译时将 switch-case 转换为 jump tables，java 需要 enum 声明和 switch同一编译单元中的语句.我应该在 GraphicModel 类中使用基于 switch 的实现还是 特定于常量的方法 实现?相反，要清楚，性能有什么区别?

public enum Mode {

  ON { Color color() {return Color.GREEN;}},
  OFF { Color color() {return Color.RED;}},
  STANDBY { Color color() {return Color.YELLOW;}},
  DEFAULT { Color color() {return Color.BLACK;}};

  abstract Color color();

}//enum Mode

getMode().color();