java - Should the interface define implementation specific enum values? -

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consider following organization of classes:

interface restaurant  {     public void dine(object dish); }  class italianrestaurant implements restaurant {     public void dine(object dish)     {         // eat spoon , forks     } }  class chineserestaurant implements restaurant {     public void dine(object dish)     {         // eat chopsticks     } }

since both restaurants serve different sets of dishes, correct way (design-wise) represent type of dish in interface?

will design decision define enum listing dishes -- italian , chinese -- part of interface, , use enum type dish?

you've used object type dish. meaning can considered dish here.

does mean can serve phone or pen dish? no; dish dish. why not create abstraction dish well?

better design :

interface restaurant  {     void dine(dish dish); }

dish interface or abstract class; choose 1 more appropriate. every kind of dish served go separate class inherits/implements dish.


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