Hi, Li I wonder if you understanding my explanation. But in order to make the question more clear, I will just focus on the proposal you mentioned. First, there is no parameter that control the validation of socket connection (Maybe some OS experts will challenge me, but please forget it because you can't use it in Java Runtime Environment) . Second, even if you could retrieve the parameter, you can't ensure the connection must change to invalid(close) at that moment, so your solution is impossible to apply. For the case, as I said before, Just write your exception handling code and retry.
BR anderson -----Original Message----- From: li [mailto:[EMAIL PROTECTED] Sent: Thursday, September 11, 2008 2:47 PM To: [email protected] Subject: RE: About the time limit of connection keeps valid from standby mode Hi, Anderson Guo, Thanks for your reply. As you guess, my connection is a long-term connection and I hope it can recover as soon as the computer resumes from a standby mode. In standby mode, I think all programs and connections would go to sleep and also the heart-beat detection mechanism. I want to know if there are some parameters (e.g. mina parameters, java vm parameters, or os parameters), which calculate the time limit of the connection becoming invalid. Regards, Li > Subject: RE: About the time limit of connection keeps valid from > standby mode > Date: Thu, 11 Sep 2008 13:50:05 +0800 > From: [EMAIL PROTECTED] > To: [email protected] > > I am not sure if I understand your issue, but I would like to share my > opinion with you about it: > > First of all, Mina is suitable for both long-term and short-term connection > oriented programming. Long-term connections means lifetime of the connection > will last from begin to end, usually the communication protocol should has > operations that responsible for session create, session keepalive, session > close. On the other hand, short-term connections, just like http connections, > created before http request is issued, till received corresponding http > response. (But for the purpose of performance, most programmer choose to open > keep-alive option to maintain the http connection between client and server). > > Second, network related exceptions really exists during the communication > phase, no matter what kind of connection manner you adoptm, so MINA provides > exception listener method to allow programmers to process exception condition > and recovery from it. Limited-retry , forget and continue are most popular > approaches to handle such cases. > > Finally, MINA is java-based network programming framework in nature, there is > no way to know whether computer system is waken up from sleep mode. So I > suggest the method to deal with connection invalid case is just encapsulate > your source code to detect network io exceptions and try to resend your > information again. > > BTW, you mentioned that you connection maybe last for about 10 minutes, > therefore I guess that program written by you is towards long-term > connection, so please also adopt heart-beat detection mechanism inside you > software. > > Best Regards > Anderson Guo > _________________________________________________________________ 【女性版ビリ�`？】���}の自宅燃��系！美しく健康的なくびれをゲット！ http://clk.atdmt.com/GBL/go/112813569/direct/01/
