multiple CORBA connections

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2 total messages Started by Oleg Konovalov Fri, 02 Jun 2000 00:00

Author: Oleg Konovalov
Date: Fri, 02 Jun 2000 00:00

52 lines
1920 bytes

Hi,

I am implementing Notification applet (using JFC), which is polling 2
servers and retrieves info from them [once a minute].
Have a few questions to you in this regard:

1) Can one client bind and sustain connections to 2 servers at once ?

2) If so, how would it distinguish which server to send a request/get
response from,
another words would the following Java code snippet work in principal?

class ServerInterface extends Object {
 ServerInterface(String ip){...};
 bindToServer(String ip) {...}
 String[] getMsgs() {...}
 disconnect () {...}
}

class MyForm extends JFrame {
 String ip1, ip2;
 String[] buf1, buf2;
 serverInterface sI1 = new serverInterface(ip1);
 serverInterface sI2 = new serverInterface(ip2);
...

 myMethod {
  while (true) {
   buf1=sI1.getMsgs();
   buf2=sI2.getMsgs()
   sleep(1min);
  }
 }


 finalize() {
  sI1.disconnect();
  sI2.disconnect();
 }

}


3)  Would you recommend putting sI1.getMsgs() and sI2.getMsgs()
in separate threads ?


4) Any references on the topic ?


Thank you in advance,
Oleg.

Re: multiple CORBA connections

Author: Martin v.Loewis
Date: Fri, 02 Jun 2000 00:00

28 lines
1902 bytes

In article <3937FCD1.C0867696@telcordia.com>,
Oleg Konovalov  <okonoval@telcordia.com> wrote:
>1) Can one client bind and sustain connections to 2 servers at once ?

Definitely.

>2) If so, how would it distinguish which server to send a request/get
>response from,
>another words would the following Java code snippet work in principal?
>
>class ServerInterface extends Object {
> ServerInterface(String ip){...};
> bindToServer(String ip) {...}
> String[] getMsgs() {...}
> disconnect () {...}
>}

Primarily, because the Java language mapping does not work this way.
Please read some book on the Java language mapping (or any other book
on CORBA) for information about the concept of "stub" objects.

>4) Any references on the topic ?

The "standard" reference on CORBA design currently seems to be the book
by Michi Henning and Steve Vinoski.

Regards,
Martin

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