sharing session across Hosts
Hello. I have two Hosts setup in the same Engine, and I would like to be able to share session variables across them. Is this possible? And, if so, what do I have to configure? Realm? Listener? Thanks a lot. Charlie - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: sharing session across Hosts
I imagine creating a static variable would be global
to the JVM. Something like:
public class MyClass
{
public static int nUsers;
};
would allow you to set and retrieve MyClass.nUsers in
a global maner. I haven't tested this and its an
absurdly trivial example, but it seems like it should
work.
--- Charles N. Harvey III [EMAIL PROTECTED]
wrote:
Hello.
I have two Hosts setup in the same Engine, and I
would like to
be able to share session variables across them. Is
this possible?
And, if so, what do I have to configure? Realm?
Listener?
Thanks a lot.
Charlie
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RE: sharing session across Hosts
From: Mark Winslow [mailto:[EMAIL PROTECTED] Subject: Re: sharing session across Hosts I imagine creating a static variable would be global to the JVM. Not quite. It's global to the classloader, not the JVM. Since each web app has its own classloader, you would have to put such a class in a location serviced by a more global loader, such as shared/lib. Now, of course, you've introduced dependency issues... - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: sharing session across Hosts
So... If I create some class, SessionHolder.java, compile it (SessionHolder.class) and put it in shared/lib, I could then set variables and then retrieve them from this class? Charlie Caldarale, Charles R said the following on 2/2/2005 5:00 PM: From: Mark Winslow [mailto:[EMAIL PROTECTED] Subject: Re: sharing session across Hosts I imagine creating a static variable would be global to the JVM. Not quite. It's global to the classloader, not the JVM. Since each web app has its own classloader, you would have to put such a class in a location serviced by a more global loader, such as shared/lib. Now, of course, you've introduced dependency issues... - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: sharing session across Hosts
Hi! Do you want to share some kind of global variables or session information? Global variables should exist only once while session information is stored for each user (to be more correct: for each user-session). I think you want to share session-information, but using a class-variable from a class that is loaded by the shared-classloader is nothing else but sharing a global variable. So if you really want to do that: Your solution might work, but it is not recommended. I think using a directory service is the better way! Tomcat has a built-in JNDI context where you can put such global things. (For more information have a look at http://jakarta.apache.org/tomcat/tomcat-5.5-doc/jndi-resources-howto.html). But as I said: All you do is sharing global information that exists only once! Best regards, Tex So... If I create some class, SessionHolder.java, compile it (SessionHolder.class) and put it in shared/lib, I could then set variables and then retrieve them from this class? Charlie Caldarale, Charles R said the following on 2/2/2005 5:00 PM: From: Mark Winslow [mailto:[EMAIL PROTECTED] Subject: Re: sharing session across Hosts I imagine creating a static variable would be global to the JVM. Not quite. It's global to the classloader, not the JVM. Since each web app has its own classloader, you would have to put such a class in a location serviced by a more global loader, such as shared/lib. Now, of course, you've introduced dependency issues... - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
