I want to avoid:
Either<Error, Employee> processEmployee(Employee e)
and use:
Result<Employee> processEmployee(Employee e)
where left is fixed:
Result<T> extends Either<Error, T>
Is there an example of this?
When I try this nothing compiles for me and I'm forced to implement a concrete class of Result<T> which I want to avoid.
The reason I want to do this is to simplify the method signatures and the stream code that uses these methods.