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Posted to user@struts.apache.org by John Boyer <jo...@rodaxsoft.com> on 2012/08/24 21:54:11 UTC

[Struts 2] How can I receive notification when the web app has been destroyed?

So that I can cleanup resources. How can I receive a notification in a Struts 2 web app when the app has been unloaded, stopped, un-deployed, etc.?

Thank you,
John Boyer
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Re: [Struts 2] How can I receive notification when the web app has been destroyed?

Posted by Paul Benedict <pb...@apache.org>.
Use a servlet listener.
On Aug 24, 2012 2:54 PM, "John Boyer" <jo...@rodaxsoft.com> wrote:

> So that I can cleanup resources. How can I receive a notification in a
> Struts 2 web app when the app has been unloaded, stopped, un-deployed, etc.?
>
> Thank you,
> John Boyer
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>

RE: [Struts 2] How can I receive notification when the web app has been destroyed?

Posted by Martin Gainty <mg...@hotmail.com>.
JMX ClientNotificationListener implementor has a method
public static class ClientListener implements NotificationListener {
will notify you of  *any* notifications that might be sent by the MBeans that are registered in the JMX agent's MBean server
http://docs.oracle.com/javase/tutorial/jmx/remote/custom.html

HTH
Martin Gainty 
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> Date: Fri, 24 Aug 2012 12:59:23 -0700
> Subject: Re: [Struts 2] How can I receive notification when the web app has been destroyed?
> From: kevind@bluechipexec.com
> To: user@struts.apache.org
> 
> As another said.. in web.xml you configure a servlet context listener, in
> your code you provide a class that implements the ServletContextListener
> and you can use it to know when the app is deployed and undeployed.
> 
> 
> On Fri, Aug 24, 2012 at 12:54 PM, John Boyer <jo...@rodaxsoft.com> wrote:
> 
> > So that I can cleanup resources. How can I receive a notification in a
> > Struts 2 web app when the app has been unloaded, stopped, un-deployed, etc.?
> >
> > Thank you,
> > John Boyer
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >

Re: valueStack [n].parameterName -- is it still there?

Posted by Dave Newton <da...@gmail.com>.
Yep, sure enough--interesting.

I think I'll start spinning through the docs and updating some stuff; that
was my claim to fame at one point--need to earn those stripes.

Dave



On Mon, Feb 18, 2013 at 12:46 PM, Maurizio Cucchiara
<mc...@apache.org>wrote:

> Looking at the regex on the bottom of the page, I'd say: it's no more
> allowed (http://goo.gl/oUlb6 click on the green button to test the regex
> pattern).
> But the regex could not represent the right behaviour, and I also didn't
> test it.
>
> Twitter     :http://www.twitter.com/m_cucchiara
> G+          :https://plus.google.com/107903711540963855921
> Linkedin    :http://www.linkedin.com/in/mauriziocucchiara
> VisualizeMe: http://vizualize.me/maurizio.cucchiara?r=maurizio.cucchiara
>
> Maurizio Cucchiara
>
>
> On 18 February 2013 18:36, Dave Newton <da...@gmail.com> wrote:
>
> > A brief look made me think [\d] was still allowed, but I also didn't play
> > with it to actually find out.
> >
> > Dave
> >
> >
> >
> > On Mon, Feb 18, 2013 at 12:20 PM, Maurizio Cucchiara
> > <mc...@apache.org>wrote:
> >
> > > There is a good chance that this notation went away after S2-009 (
> > > http://goo.gl/NydYr), though I could be wrong .
> > >
> > > Twitter     :http://www.twitter.com/m_cucchiara
> > > G+          :https://plus.google.com/107903711540963855921
> > > Linkedin    :http://www.linkedin.com/in/mauriziocucchiara
> > > VisualizeMe:
> http://vizualize.me/maurizio.cucchiara?r=maurizio.cucchiara
> > >
> > > Maurizio Cucchiara
> > >
> > >
> > > On 18 February 2013 18:14, Dave Newton <da...@gmail.com> wrote:
> > >
> > > > The [0].foo notation should allow direct access to the nth item on
> the
> > > > stack.
> > > >
> > > > I'm not aware of it intentionally going away, but I also don't use it
> > > > regularly and would need to check.
> > > >
> > > > Dave
> > > >
> > > >
> > > > On Mon, Feb 18, 2013 at 12:05 PM, Lukasz Lenart <
> > lukaszlenart@apache.org
> > > > >wrote:
> > > >
> > > > > 2013/2/18 Chris Mawata <ch...@gmail.com>:
> > > > > > Hi all,
> > > > > >    I am using Struts 2.3.4.1 and i noticed the notation
> > > > > > [n].parameterName to get a parameter of a given name
> > > > > > when the first ocurrance is not the one you want is
> > > > > > not working. I can't find any documentation that it was
> > > > > > removed. Can anyone point me to something? I might
> > > > > > not be searching by the technically correct name.
> > > > >
> > > > > I cannot recall such a notation, you can use #attr.parameterName to
> > > > > search throughout the ValueStack
> > > > >
> > > > > http://struts.apache.org/development/2.x/docs/ognl.html
> > > > >
> > > > >
> > > > > Regards
> > > > > --
> > > > > Łukasz
> > > > > + 48 606 323 122 http://www.lenart.org.pl/
> > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > > > For additional commands, e-mail: user-help@struts.apache.org
> > > > >
> > > > >
> > > >
> > > >
> > > > --
> > > > e: davelnewton@gmail.com
> > > > m: 908-380-8699
> > > > s: davelnewton_skype
> > > > t: @dave_newton <https://twitter.com/dave_newton>
> > > > b: Bucky Bits <http://buckybits.blogspot.com/>
> > > > g: davelnewton <https://github.com/davelnewton>
> > > > so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>
> > > >
> > >
> >
> >
> >
> > --
> > e: davelnewton@gmail.com
> > m: 908-380-8699
> > s: davelnewton_skype
> > t: @dave_newton <https://twitter.com/dave_newton>
> > b: Bucky Bits <http://buckybits.blogspot.com/>
> > g: davelnewton <https://github.com/davelnewton>
> > so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>
> >
>



-- 
e: davelnewton@gmail.com
m: 908-380-8699
s: davelnewton_skype
t: @dave_newton <https://twitter.com/dave_newton>
b: Bucky Bits <http://buckybits.blogspot.com/>
g: davelnewton <https://github.com/davelnewton>
so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>

Re: valueStack [n].parameterName -- is it still there?

Posted by Maurizio Cucchiara <mc...@apache.org>.
Looking at the regex on the bottom of the page, I'd say: it's no more
allowed (http://goo.gl/oUlb6 click on the green button to test the regex
pattern).
But the regex could not represent the right behaviour, and I also didn't
test it.

Twitter     :http://www.twitter.com/m_cucchiara
G+          :https://plus.google.com/107903711540963855921
Linkedin    :http://www.linkedin.com/in/mauriziocucchiara
VisualizeMe: http://vizualize.me/maurizio.cucchiara?r=maurizio.cucchiara

Maurizio Cucchiara


On 18 February 2013 18:36, Dave Newton <da...@gmail.com> wrote:

> A brief look made me think [\d] was still allowed, but I also didn't play
> with it to actually find out.
>
> Dave
>
>
>
> On Mon, Feb 18, 2013 at 12:20 PM, Maurizio Cucchiara
> <mc...@apache.org>wrote:
>
> > There is a good chance that this notation went away after S2-009 (
> > http://goo.gl/NydYr), though I could be wrong .
> >
> > Twitter     :http://www.twitter.com/m_cucchiara
> > G+          :https://plus.google.com/107903711540963855921
> > Linkedin    :http://www.linkedin.com/in/mauriziocucchiara
> > VisualizeMe: http://vizualize.me/maurizio.cucchiara?r=maurizio.cucchiara
> >
> > Maurizio Cucchiara
> >
> >
> > On 18 February 2013 18:14, Dave Newton <da...@gmail.com> wrote:
> >
> > > The [0].foo notation should allow direct access to the nth item on the
> > > stack.
> > >
> > > I'm not aware of it intentionally going away, but I also don't use it
> > > regularly and would need to check.
> > >
> > > Dave
> > >
> > >
> > > On Mon, Feb 18, 2013 at 12:05 PM, Lukasz Lenart <
> lukaszlenart@apache.org
> > > >wrote:
> > >
> > > > 2013/2/18 Chris Mawata <ch...@gmail.com>:
> > > > > Hi all,
> > > > >    I am using Struts 2.3.4.1 and i noticed the notation
> > > > > [n].parameterName to get a parameter of a given name
> > > > > when the first ocurrance is not the one you want is
> > > > > not working. I can't find any documentation that it was
> > > > > removed. Can anyone point me to something? I might
> > > > > not be searching by the technically correct name.
> > > >
> > > > I cannot recall such a notation, you can use #attr.parameterName to
> > > > search throughout the ValueStack
> > > >
> > > > http://struts.apache.org/development/2.x/docs/ognl.html
> > > >
> > > >
> > > > Regards
> > > > --
> > > > Łukasz
> > > > + 48 606 323 122 http://www.lenart.org.pl/
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > > For additional commands, e-mail: user-help@struts.apache.org
> > > >
> > > >
> > >
> > >
> > > --
> > > e: davelnewton@gmail.com
> > > m: 908-380-8699
> > > s: davelnewton_skype
> > > t: @dave_newton <https://twitter.com/dave_newton>
> > > b: Bucky Bits <http://buckybits.blogspot.com/>
> > > g: davelnewton <https://github.com/davelnewton>
> > > so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>
> > >
> >
>
>
>
> --
> e: davelnewton@gmail.com
> m: 908-380-8699
> s: davelnewton_skype
> t: @dave_newton <https://twitter.com/dave_newton>
> b: Bucky Bits <http://buckybits.blogspot.com/>
> g: davelnewton <https://github.com/davelnewton>
> so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>
>

Re: valueStack [n].parameterName -- is it still there?

Posted by Dave Newton <da...@gmail.com>.
A brief look made me think [\d] was still allowed, but I also didn't play
with it to actually find out.

Dave



On Mon, Feb 18, 2013 at 12:20 PM, Maurizio Cucchiara
<mc...@apache.org>wrote:

> There is a good chance that this notation went away after S2-009 (
> http://goo.gl/NydYr), though I could be wrong .
>
> Twitter     :http://www.twitter.com/m_cucchiara
> G+          :https://plus.google.com/107903711540963855921
> Linkedin    :http://www.linkedin.com/in/mauriziocucchiara
> VisualizeMe: http://vizualize.me/maurizio.cucchiara?r=maurizio.cucchiara
>
> Maurizio Cucchiara
>
>
> On 18 February 2013 18:14, Dave Newton <da...@gmail.com> wrote:
>
> > The [0].foo notation should allow direct access to the nth item on the
> > stack.
> >
> > I'm not aware of it intentionally going away, but I also don't use it
> > regularly and would need to check.
> >
> > Dave
> >
> >
> > On Mon, Feb 18, 2013 at 12:05 PM, Lukasz Lenart <lukaszlenart@apache.org
> > >wrote:
> >
> > > 2013/2/18 Chris Mawata <ch...@gmail.com>:
> > > > Hi all,
> > > >    I am using Struts 2.3.4.1 and i noticed the notation
> > > > [n].parameterName to get a parameter of a given name
> > > > when the first ocurrance is not the one you want is
> > > > not working. I can't find any documentation that it was
> > > > removed. Can anyone point me to something? I might
> > > > not be searching by the technically correct name.
> > >
> > > I cannot recall such a notation, you can use #attr.parameterName to
> > > search throughout the ValueStack
> > >
> > > http://struts.apache.org/development/2.x/docs/ognl.html
> > >
> > >
> > > Regards
> > > --
> > > Łukasz
> > > + 48 606 323 122 http://www.lenart.org.pl/
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail: user-help@struts.apache.org
> > >
> > >
> >
> >
> > --
> > e: davelnewton@gmail.com
> > m: 908-380-8699
> > s: davelnewton_skype
> > t: @dave_newton <https://twitter.com/dave_newton>
> > b: Bucky Bits <http://buckybits.blogspot.com/>
> > g: davelnewton <https://github.com/davelnewton>
> > so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>
> >
>



-- 
e: davelnewton@gmail.com
m: 908-380-8699
s: davelnewton_skype
t: @dave_newton <https://twitter.com/dave_newton>
b: Bucky Bits <http://buckybits.blogspot.com/>
g: davelnewton <https://github.com/davelnewton>
so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>

Re: valueStack [n].parameterName -- is it still there?

Posted by Maurizio Cucchiara <mc...@apache.org>.
There is a good chance that this notation went away after S2-009 (
http://goo.gl/NydYr), though I could be wrong .

Twitter     :http://www.twitter.com/m_cucchiara
G+          :https://plus.google.com/107903711540963855921
Linkedin    :http://www.linkedin.com/in/mauriziocucchiara
VisualizeMe: http://vizualize.me/maurizio.cucchiara?r=maurizio.cucchiara

Maurizio Cucchiara


On 18 February 2013 18:14, Dave Newton <da...@gmail.com> wrote:

> The [0].foo notation should allow direct access to the nth item on the
> stack.
>
> I'm not aware of it intentionally going away, but I also don't use it
> regularly and would need to check.
>
> Dave
>
>
> On Mon, Feb 18, 2013 at 12:05 PM, Lukasz Lenart <lukaszlenart@apache.org
> >wrote:
>
> > 2013/2/18 Chris Mawata <ch...@gmail.com>:
> > > Hi all,
> > >    I am using Struts 2.3.4.1 and i noticed the notation
> > > [n].parameterName to get a parameter of a given name
> > > when the first ocurrance is not the one you want is
> > > not working. I can't find any documentation that it was
> > > removed. Can anyone point me to something? I might
> > > not be searching by the technically correct name.
> >
> > I cannot recall such a notation, you can use #attr.parameterName to
> > search throughout the ValueStack
> >
> > http://struts.apache.org/development/2.x/docs/ognl.html
> >
> >
> > Regards
> > --
> > Łukasz
> > + 48 606 323 122 http://www.lenart.org.pl/
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
>
>
> --
> e: davelnewton@gmail.com
> m: 908-380-8699
> s: davelnewton_skype
> t: @dave_newton <https://twitter.com/dave_newton>
> b: Bucky Bits <http://buckybits.blogspot.com/>
> g: davelnewton <https://github.com/davelnewton>
> so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>
>

Re: valueStack [n].parameterName -- is it still there?

Posted by Dave Newton <da...@gmail.com>.
The [0].foo notation should allow direct access to the nth item on the
stack.

I'm not aware of it intentionally going away, but I also don't use it
regularly and would need to check.

Dave


On Mon, Feb 18, 2013 at 12:05 PM, Lukasz Lenart <lu...@apache.org>wrote:

> 2013/2/18 Chris Mawata <ch...@gmail.com>:
> > Hi all,
> >    I am using Struts 2.3.4.1 and i noticed the notation
> > [n].parameterName to get a parameter of a given name
> > when the first ocurrance is not the one you want is
> > not working. I can't find any documentation that it was
> > removed. Can anyone point me to something? I might
> > not be searching by the technically correct name.
>
> I cannot recall such a notation, you can use #attr.parameterName to
> search throughout the ValueStack
>
> http://struts.apache.org/development/2.x/docs/ognl.html
>
>
> Regards
> --
> Łukasz
> + 48 606 323 122 http://www.lenart.org.pl/
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>


-- 
e: davelnewton@gmail.com
m: 908-380-8699
s: davelnewton_skype
t: @dave_newton <https://twitter.com/dave_newton>
b: Bucky Bits <http://buckybits.blogspot.com/>
g: davelnewton <https://github.com/davelnewton>
so: Dave Newton <http://stackoverflow.com/users/438992/dave-newton>

Re: valueStack [n].parameterName -- is it still there?

Posted by Lukasz Lenart <lu...@apache.org>.
2013/2/18 Chris Mawata <ch...@gmail.com>:
> Hi all,
>    I am using Struts 2.3.4.1 and i noticed the notation
> [n].parameterName to get a parameter of a given name
> when the first ocurrance is not the one you want is
> not working. I can't find any documentation that it was
> removed. Can anyone point me to something? I might
> not be searching by the technically correct name.

I cannot recall such a notation, you can use #attr.parameterName to
search throughout the ValueStack

http://struts.apache.org/development/2.x/docs/ognl.html


Regards
-- 
Łukasz
+ 48 606 323 122 http://www.lenart.org.pl/

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valueStack [n].parameterName -- is it still there?

Posted by Chris Mawata <ch...@gmail.com>.
Hi all,
    I am using Struts 2.3.4.1 and i noticed the notation
[n].parameterName to get a parameter of a given name
when the first ocurrance is not the one you want is
not working. I can't find any documentation that it was
removed. Can anyone point me to something? I might
not be searching by the technically correct name.
Thanks
Chris

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Re: [Struts 2] How can I receive notification when the web app has been destroyed?

Posted by Kevin Duffey <ke...@bluechipexec.com>.
As another said.. in web.xml you configure a servlet context listener, in
your code you provide a class that implements the ServletContextListener
and you can use it to know when the app is deployed and undeployed.


On Fri, Aug 24, 2012 at 12:54 PM, John Boyer <jo...@rodaxsoft.com> wrote:

> So that I can cleanup resources. How can I receive a notification in a
> Struts 2 web app when the app has been unloaded, stopped, un-deployed, etc.?
>
> Thank you,
> John Boyer
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>