Java / refactoring switch case

I tried to reconstruct the next case:

class Gen{
    public void startClick(A a,B b,List<C> lstC,SortX sort){
     for (int i=0; i<lstC.size(); i++){
        try{
        // some code with try and catch statement
         switch (sort){
        case SortA:
              newOne(a,b,lstc);
              break;
        case SortB: 
              otherfunction(a);
              break;
        case SortC:
              someotherfunction(lstC,a);
              break;
          }
       }
      } catch (Exception e){ //some code}
     } 
}

I try to create objects and process them, as we can see here: http://sourcemaking.com/refactoring/replace-conditional-with-polymorphism

So I created an object: sortoftype, and then for each case, I also created an object (sorta, sortb, sortc) The function in sortoftype gets the instance of Gen and other sort objects What I failed to do was to call the sortoftype of the class Gen What shall I do? Is this refactoring possible?

Solution

You can define an interface to call when an operation is required

public interface SortX {
    public void startClick(A a,C c);
}

public enum SortAEnum implements SortX<A,B,C> {
    SortA {
         public void startClick(A a,C c) {
              newOne(a,c);
         }
    },SortB {
         public void startClick(A a,C c) {
              otherfunction(a);
         }
    },C c) {
              someotherfunction(c,a);
         }
    }
}

public static void startClick(A a,List<C extends OnClick> lstC,SortX sort){
   for (int i=0; i<lstC.size(); i++){
      sort.startClick(a,lstC.get(i));
   }
}