On Fri, 18 Jun 1999, Andras Balogh wrote:
> Hi !
>
> I was wondering it is possible to have one global variable (a
> String object or an int) that can be accessed from all servets on
> the same webserver ?
> I know a line of a file or a table field from a database could be
> a "global variable" but than I a need connection in every servlet.
> Could it be done in a more simple way?
How about using the Singleton pattern? Some skeleton code:
public class MyGlobalVar {
private MyGlobalVar instance = null;
// whatever other member data fields needed
private MyGlobalVar(...) {
// do whatever is needed to initialize MyGlobalVar
}
public static MyGlobalVar getInstance() {
if (instance == null) instance = new MyGlobalVar(...);
return instance;
}
// whatever other memeber methods needed
// most likely read-only methods
}
I think I got everything right there.
Milt Epstein
Research Programmer
Software/Systems Development Group
Computing and Communications Services Office (CCSO)
University of Illinois at Urbana-Champaign (UIUC)
[EMAIL PROTECTED]
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