Do I have to synchronize when retrieve service detail one by one?

Question

am retrieving some service list and which need the service number,so I have to get the service detail object one service by another. And every service use its own si requester. At first I use a synchronized object to ensure the result can not be misunderstood,but later I found it may have low effeciency,and so that every service has its own requestor ,I think maybe every result should be propery understood,because ther requester can find the "father" who invoke it. Am I right?
I still have such problem about event retrieving,can any one tell me the proper way about that??Thanks!
tainy

Answer 1

You can issue multiple requests asynchronously, provided that the event listener has enough information to tell which request it's processing. With the JavaTV SI API, this may not be very easy unless you use a separate listener for every request. The DVB SI API makes it a bit more straightforward because you can pass an application-specific parameter when making the request, and this can be used to tell which result corresponds to that request.
You will probably still need some synchronization, depending what you want to do with the data you have. For instance, you may want to wait until you have the results from all your requests before doing futher processing, but at least you can avoid making every request synchronized.
Steve.