----------------------------------------------------
Please read the FAQ at <http://java.apache.org/faq/>
It does have a search feature!
We cannot guess what you are trying to do:
#1. Include version numbers for all software.
#2. Include relevant configuration settings.
#3. Include full descriptions of the problem.
Got Linux? Seeing lots of java processes?
<http://java.apache.org/faq/?file=274>
----------------------------------------------------
I use the first method you give rather extensively. The basic steps are:
// 1. Define a member variable of your global class which is an instance
of the class:
public class GlobalObject {
private static GlobalObject _global;
// 2. Make the constructor private so that no one can instantiate us.
private GlobalObject() {
//...
}
// 3. Define a method which instantiates a GlobalObject if
necessary...
public static globalObject getGlobalObject() {
if( _global == null ) _global = new GlobalObject();
return _global;
}
} // end class GlobalObject
4. Then in your servlet base class, you have:
GlobalObject _servletGlobalObject = GlobalObject.getGlobalObject();
You never call the constructor yourself, you let the GlobalObject class
handle the instantiation and give you the static object.
Hope this helps...
-S
Stuart Allen wrote:
>
> ----------------------------------------------------
> Please read the FAQ at <http://java.apache.org/faq/>
> It does have a search feature!
>
> We cannot guess what you are trying to do:
> #1. Include version numbers for all software.
> #2. Include relevant configuration settings.
> #3. Include full descriptions of the problem.
>
> Got Linux? Seeing lots of java processes?
> <http://java.apache.org/faq/?file=274>
> ----------------------------------------------------
>
> Hello
>
> I am having a problem finding a successful way of sharing data between two
> servlets. I have tried two methods so far, both of which end up with a
> separate set of data for each servlet that access it. The first involved
> making a superclass with global static variables. Any servlet requiring
> access to this single-source data would extend this class. The second
> involved making a class containing a pointer to an instance of itself in
> the form of a private static variable. The value of this variable is then
> read by two other servlets using a public function call.
>
> Any information as to why two separate instances of the data are being
> created in both cases would be greatly appreciated.
>
> Regards,
> Stuart
>
> --
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--
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drank
gin straight from the bottle." - Garrison Keillor
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