All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`createUser(String userId, String name)`
`Person`	`getUser(long id)`
`Person`	`getUserByUserId(String userId)`
`List<Person>`	`getUsers(int index, int count)`
`void`	`removeUser(String userId)`

long createUser(String userId,
                String name)
         throws InvalidRequestException

Person getUser(long id)
        throws ResourceNotFoundException

Person getUserByUserId(String userId)
                throws ResourceNotFoundException

void removeUser(String userId)
         throws ResourceNotFoundException

List<Person> getUsers(int index,
                      int count)

Interface UserMgmt