Java generic function: how to return Generic type

Question

Here\'s a Java generic pattern:

public  T getResultData(Class resultClass, other_args) { 
   ...
   return resultClass.cast(T-thing);
}
         


        

Answer 1

So if I understood correctly what you really trying to do is (illegal pseudo-syntax):

public  T getResultData(Class> resultClass, other_args) { 
  ...
  return resultClass.cast(T-thing);
}

You can't because you can't further parameterize generic type T. Messing about with java.lang.reflect.* won't help:

1. There is no such thing as Class> and thus no way to dynamically create its instance.
2. There is no way to actually declare the method in question as returning T