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Re: share data between two tomcat contexts?

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From Josip Almasi <joe@vrspace.org>
Newsgroups comp.lang.java.programmer
Subject Re: share data between two tomcat contexts?
Date Sat, 17 May 2014 09:29:48 +0200
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On 05/17/2014 02:19 AM, Laura Schmidt wrote:
> On 05/17/2014 01:41 AM, markspace wrote:
>> On 5/16/2014 4:32 PM, Laura Schmidt wrote:
>
>>> Are there any solutions?
>
>> At this point consider using your own server.
>
> Ok, but how would this work over time?
>
> Assume an app "FirstApp". What would I insert into the server.xml?
>
> And then, what happens, when I update the app, e. g. undeploy and
> redeploy it? There will be a time span where server.xml references to an
> app that does not exist?

I suppose so.
Now that I've looked at the article (interesting one, thanks!), caller 
app may fail when context is unavailable during redeployment, in a 
number of ways.
Also, redeployment of called app might delay, maybe even fail, for 
caller app keeps reference to called classloader.
So it's up to you to make that time span shorter - don't store 
references to called context and classloader and object and methods 
anywhere, so they become unreachable as soon as possible.
Reflection calls are never cached, you'll always get references to fresh 
classes, objects and methods.

Regards...

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Thread

share data between two tomcat contexts? Laura Schmidt <ls@mailinator.com> - 2014-05-17 01:32 +0200
  Re: share data between two tomcat contexts? markspace <markspace@nospam.nospam> - 2014-05-16 16:41 -0700
    Re: share data between two tomcat contexts? Laura Schmidt <ls@mailinator.com> - 2014-05-17 02:19 +0200
      Re: share data between two tomcat contexts? markspace <markspace@nospam.nospam> - 2014-05-16 17:40 -0700
        Re: share data between two tomcat contexts? Laura Schmidt <ls@mailinator.com> - 2014-05-17 08:16 +0200
      Re: share data between two tomcat contexts? Josip Almasi <joe@vrspace.org> - 2014-05-17 09:29 +0200
  Re: share data between two tomcat contexts? Arne Vajhøj <arne@vajhoej.dk> - 2014-05-16 19:45 -0400
    Re: share data between two tomcat contexts? Robert Klemme <shortcutter@googlemail.com> - 2014-05-17 12:46 +0200
  Re: share data between two tomcat contexts? leif.roar@invalid.com (Leif Roar Moldskred) - 2014-05-17 01:35 -0500
    Re: share data between two tomcat contexts? Laura Schmidt <ls@mailinator.com> - 2014-05-17 13:22 +0200
      Re: share data between two tomcat contexts? lipska the kat <lipskathekat@example.com> - 2014-05-17 13:04 +0100
      Re: share data between two tomcat contexts? leif.roar@invalid.com (Leif Roar Moldskred) - 2014-05-17 08:25 -0500
      Re: share data between two tomcat contexts? "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-05-17 17:21 +0100
      Re: share data between two tomcat contexts? Robert Klemme <shortcutter@googlemail.com> - 2014-05-18 10:12 +0200
      Re: share data between two tomcat contexts? lipska the kat <lipskathekat@example.com> - 2014-05-18 11:13 +0100
      Re: share data between two tomcat contexts? Brixomatic <brixomatic@yahoo.com> - 2014-05-22 18:58 +0200
  Re: share data between two tomcat contexts? "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-05-17 11:11 +0100

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