Special Notes

Various types of callback return values are supported: int, int[], double, double[], String, String[]

• In the implementation of ResponseReceiver above, you could instead of overriding the generic method
  
  incomingResponse(Object x)
  
  equivalently override the specialized method
  
  incomingResponse(String x)
  
  This will save you a type cast - but will make your ResponseReceiver implementation less flexible for use with other callbacks


• To invoke a method responder.giveStringLength(String text, CBlong cb, CBDescIn descIn),
  where the return value is of type CBlong instead of CBstring, you would in the DemoRequester code above write
  
  
  • RequesterUtil.giveCBLong(cs, rere)
    
    and, according to the previous point, optionally implement:
    
    
  • incomingResponse(int x){ System.out.println(x); }
    
    Finally, in the EasyResponderImpl you'd write
    
    
  • ResponderUtil.respond (length, cb, descIn);