Re: RE: Re: how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
Thanks Ben,
That's what I did and it works great !
Best regards,
D.
2007/1/4, Ben Dotte <[EMAIL PROTECTED]>:
Crap.. I forgot about that dependency on the web request. That never
made sense to me for the case of application-scope ASOs.
In any case, here is a wild idea. If you can capture and hold onto the
Hivemind-created instance of the ASO, you could then give out access to
it through a static getter, similar to a regular old singleton.
To do this you would need to wire up the ASO through a
StateObjectFactory.
So in hivemodule.xml:
In MyAppObjectFactory you can instantiate the object you want to use as
an ASO:
public class MyAppObjectFactory implements StateObjectFactory
{
public Object createStateObject()
{
return new MyApplicationObject();
}
}
Then in MyApplicationObject you could store the instance that gets
created:
public class MyApplicationObject
{
private static MyApplicationObject instance;
public MyApplicationObject()
{
instance = this;
}
public static MyApplicationObject getInstance()
{
return instance;
}
}
Then in your ServletContextListener you can just call
MyApplicationObject.getInstance().
Not the prettiest solution but I believe this would work.
Ben
-Original Message-
From: Tapestry User List [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 04, 2007 9:19 AM
To: Tapestry users
Subject: Re: Re: how to retrieve an Application State Object (ASO) with
an application scope from the ServletContext ?
It doesn't work.
Registry registry =
(Registry)context.getAttribute("org.apache.tapestry.Registry:app");
returns null.
D.
2007/1/4, James Carman <[EMAIL PROTECTED]>:
> I don't think that'll work. The ApplicationStateManager needs a
> reference to the current web request (eventually the session).
>
>
> On 1/4/07, Ben Dotte <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > You could do something like this:
> >
> > ((ApplicationStateManager) ((Registry)
> >
context.getAttribute("org.apache.tapestry.Registry:app")).getService(App
> > licationStateManager.class)).get("myStateObject");
> >
> > Where "myStateObject" is the name of your ASO.
> >
> > HTH
> >
> > Ben
> >
> > -----Original Message-
> > From: Tapestry User List [mailto:[EMAIL PROTECTED]
> > Sent: Thursday, January 04, 2007 8:45 AM
> > To: tapestry-user@jakarta.apache.org
> > Subject: how to retrieve an Application State Object (ASO) with an
> > application scope from the ServletContext ?
> >
> > Hi,
> >
> > Happy new year
> >
> > I have created a class that implements ServletContextListener.
> > In the method public void contextDestroyed(ServletContextEvent
event),
> > I need to retrieve an Application State Object (ASO) of tapestry 4
> > with an application scope (not session).
> >
> > My question is how to retrieve an Application State Object (ASO)
from
> > the ServletContext ?
> >
> >
> > public void contextDestroyed(ServletContextEvent event) {
> > ServletContext context = event.getServletContext();
> > // retrieve myApplicationObject here
> > }
> >
> > In hivemodule.xml:
> > ...
> >
> > > scope="application">
> > > class="ns.MyApplicationObject"/>
> >
> >
> > ...
> >
> > Thanks so much,
> >
> > D.
> >
> >
-
> > 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]
> >
> >
> >
>
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Re: how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
I have used the following piece of code to retrieved
an
application ASO in a
HttpSessionListener.sessionCreated method.
It might work in ServletContextListener as well.
// context is the servlet context
Registry registry = (Registry) context
.getAttribute(ApplicationServlet.REGISTRY_KEY_PREFIX_PUBLIC
+ "(the name of
ApplicationServlet given in
web.xml");
ApplicationStateManager manager =
(ApplicationStateManager)
registry.getService("tapestry.state.ApplicationStateManager",
ApplicationStateManager.class);
MyApplicationObject myASO =
(MyApplicationObject)manager.get("myApplicationObject");
HTH
Shing
--- Tapestry User List <[EMAIL PROTECTED]>
wrote:
> Hi,
>
> Happy new year
>
> I have created a class that implements
> ServletContextListener.
> In the method public void
> contextDestroyed(ServletContextEvent event),
> I need to retrieve an Application State Object (ASO)
> of tapestry 4
> with an application scope (not session).
>
> My question is how to retrieve an Application State
> Object (ASO) from
> the ServletContext ?
>
>
> public void contextDestroyed(ServletContextEvent
> event) {
> ServletContext context =
> event.getServletContext();
> // retrieve myApplicationObject here
> }
>
> In hivemodule.xml:
> ...
>
configuration-id="tapestry.state.ApplicationObjects">
>scope="application">
>
>
>
> ...
>
> Thanks so much,
>
> D.
>
>
-
> To unsubscribe, e-mail:
> [EMAIL PROTECTED]
> For additional commands, e-mail:
> [EMAIL PROTECTED]
>
>
Home page :
http://uk.geocities.com/matmsh/index.html
Send instant messages to your online friends http://uk.messenger.yahoo.com
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RE: Re: how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
Crap.. I forgot about that dependency on the web request. That never
made sense to me for the case of application-scope ASOs.
In any case, here is a wild idea. If you can capture and hold onto the
Hivemind-created instance of the ASO, you could then give out access to
it through a static getter, similar to a regular old singleton.
To do this you would need to wire up the ASO through a
StateObjectFactory.
So in hivemodule.xml:
In MyAppObjectFactory you can instantiate the object you want to use as
an ASO:
public class MyAppObjectFactory implements StateObjectFactory
{
public Object createStateObject()
{
return new MyApplicationObject();
}
}
Then in MyApplicationObject you could store the instance that gets
created:
public class MyApplicationObject
{
private static MyApplicationObject instance;
public MyApplicationObject()
{
instance = this;
}
public static MyApplicationObject getInstance()
{
return instance;
}
}
Then in your ServletContextListener you can just call
MyApplicationObject.getInstance().
Not the prettiest solution but I believe this would work.
Ben
-Original Message-
From: Tapestry User List [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 04, 2007 9:19 AM
To: Tapestry users
Subject: Re: Re: how to retrieve an Application State Object (ASO) with
an application scope from the ServletContext ?
It doesn't work.
Registry registry =
(Registry)context.getAttribute("org.apache.tapestry.Registry:app");
returns null.
D.
2007/1/4, James Carman <[EMAIL PROTECTED]>:
> I don't think that'll work. The ApplicationStateManager needs a
> reference to the current web request (eventually the session).
>
>
> On 1/4/07, Ben Dotte <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > You could do something like this:
> >
> > ((ApplicationStateManager) ((Registry)
> >
context.getAttribute("org.apache.tapestry.Registry:app")).getService(App
> > licationStateManager.class)).get("myStateObject");
> >
> > Where "myStateObject" is the name of your ASO.
> >
> > HTH
> >
> > Ben
> >
> > -Original Message-----
> > From: Tapestry User List [mailto:[EMAIL PROTECTED]
> > Sent: Thursday, January 04, 2007 8:45 AM
> > To: tapestry-user@jakarta.apache.org
> > Subject: how to retrieve an Application State Object (ASO) with an
> > application scope from the ServletContext ?
> >
> > Hi,
> >
> > Happy new year
> >
> > I have created a class that implements ServletContextListener.
> > In the method public void contextDestroyed(ServletContextEvent
event),
> > I need to retrieve an Application State Object (ASO) of tapestry 4
> > with an application scope (not session).
> >
> > My question is how to retrieve an Application State Object (ASO)
from
> > the ServletContext ?
> >
> >
> > public void contextDestroyed(ServletContextEvent event) {
> > ServletContext context = event.getServletContext();
> > // retrieve myApplicationObject here
> > }
> >
> > In hivemodule.xml:
> > ...
> >
> > > scope="application">
> > > class="ns.MyApplicationObject"/>
> >
> >
> > ...
> >
> > Thanks so much,
> >
> > D.
> >
> >
-
> > 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]
> >
> >
> >
>
> -
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> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
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Re: how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
Hi,
how about using an InjectState annotation:
@InjectState("MyApplicationObject")
public abstract MyApplicationObject getMyApplicationObject();
Maybe this works.
Regards
Mahmut
Tapestry User List schrieb:
It doesn't work.
Registry registry =
(Registry)context.getAttribute("org.apache.tapestry.Registry:app");
returns null.
D.
2007/1/4, James Carman <[EMAIL PROTECTED]>:
I don't think that'll work. The ApplicationStateManager needs a
reference to the current web request (eventually the session).
On 1/4/07, Ben Dotte <[EMAIL PROTECTED]> wrote:
> Hi,
>
> You could do something like this:
>
> ((ApplicationStateManager) ((Registry)
>
context.getAttribute("org.apache.tapestry.Registry:app")).getService(App
> licationStateManager.class)).get("myStateObject");
>
> Where "myStateObject" is the name of your ASO.
>
> HTH
>
> Ben
>
> -Original Message-
> From: Tapestry User List [mailto:[EMAIL PROTECTED]
> Sent: Thursday, January 04, 2007 8:45 AM
> To: tapestry-user@jakarta.apache.org
> Subject: how to retrieve an Application State Object (ASO) with an
> application scope from the ServletContext ?
>
> Hi,
>
> Happy new year
>
> I have created a class that implements ServletContextListener.
> In the method public void contextDestroyed(ServletContextEvent event),
> I need to retrieve an Application State Object (ASO) of tapestry 4
> with an application scope (not session).
>
> My question is how to retrieve an Application State Object (ASO) from
> the ServletContext ?
>
>
> public void contextDestroyed(ServletContextEvent event) {
> ServletContext context = event.getServletContext();
> // retrieve myApplicationObject here
> }
>
> In hivemodule.xml:
> ...
>
> scope="application">
> class="ns.MyApplicationObject"/>
>
>
> ...
>
> Thanks so much,
>
> D.
>
> -
> 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]
>
>
>
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Re: Re: how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
It doesn't work.
Registry registry =
(Registry)context.getAttribute("org.apache.tapestry.Registry:app");
returns null.
D.
2007/1/4, James Carman <[EMAIL PROTECTED]>:
I don't think that'll work. The ApplicationStateManager needs a
reference to the current web request (eventually the session).
On 1/4/07, Ben Dotte <[EMAIL PROTECTED]> wrote:
> Hi,
>
> You could do something like this:
>
> ((ApplicationStateManager) ((Registry)
> context.getAttribute("org.apache.tapestry.Registry:app")).getService(App
> licationStateManager.class)).get("myStateObject");
>
> Where "myStateObject" is the name of your ASO.
>
> HTH
>
> Ben
>
> -Original Message-
> From: Tapestry User List [mailto:[EMAIL PROTECTED]
> Sent: Thursday, January 04, 2007 8:45 AM
> To: tapestry-user@jakarta.apache.org
> Subject: how to retrieve an Application State Object (ASO) with an
> application scope from the ServletContext ?
>
> Hi,
>
> Happy new year
>
> I have created a class that implements ServletContextListener.
> In the method public void contextDestroyed(ServletContextEvent event),
> I need to retrieve an Application State Object (ASO) of tapestry 4
> with an application scope (not session).
>
> My question is how to retrieve an Application State Object (ASO) from
> the ServletContext ?
>
>
> public void contextDestroyed(ServletContextEvent event) {
> ServletContext context = event.getServletContext();
> // retrieve myApplicationObject here
> }
>
> In hivemodule.xml:
> ...
>
> scope="application">
> class="ns.MyApplicationObject"/>
>
>
> ...
>
> Thanks so much,
>
> D.
>
> -
> 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]
>
>
>
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Re: how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
I don't think that'll work. The ApplicationStateManager needs a
reference to the current web request (eventually the session).
On 1/4/07, Ben Dotte <[EMAIL PROTECTED]> wrote:
Hi,
You could do something like this:
((ApplicationStateManager) ((Registry)
context.getAttribute("org.apache.tapestry.Registry:app")).getService(App
licationStateManager.class)).get("myStateObject");
Where "myStateObject" is the name of your ASO.
HTH
Ben
-Original Message-
From: Tapestry User List [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 04, 2007 8:45 AM
To: tapestry-user@jakarta.apache.org
Subject: how to retrieve an Application State Object (ASO) with an
application scope from the ServletContext ?
Hi,
Happy new year
I have created a class that implements ServletContextListener.
In the method public void contextDestroyed(ServletContextEvent event),
I need to retrieve an Application State Object (ASO) of tapestry 4
with an application scope (not session).
My question is how to retrieve an Application State Object (ASO) from
the ServletContext ?
public void contextDestroyed(ServletContextEvent event) {
ServletContext context = event.getServletContext();
// retrieve myApplicationObject here
}
In hivemodule.xml:
...
...
Thanks so much,
D.
-
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]
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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RE: how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
Hi,
You could do something like this:
((ApplicationStateManager) ((Registry)
context.getAttribute("org.apache.tapestry.Registry:app")).getService(App
licationStateManager.class)).get("myStateObject");
Where "myStateObject" is the name of your ASO.
HTH
Ben
-Original Message-
From: Tapestry User List [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 04, 2007 8:45 AM
To: tapestry-user@jakarta.apache.org
Subject: how to retrieve an Application State Object (ASO) with an
application scope from the ServletContext ?
Hi,
Happy new year
I have created a class that implements ServletContextListener.
In the method public void contextDestroyed(ServletContextEvent event),
I need to retrieve an Application State Object (ASO) of tapestry 4
with an application scope (not session).
My question is how to retrieve an Application State Object (ASO) from
the ServletContext ?
public void contextDestroyed(ServletContextEvent event) {
ServletContext context = event.getServletContext();
// retrieve myApplicationObject here
}
In hivemodule.xml:
...
...
Thanks so much,
D.
-
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]
how to retrieve an Application State Object (ASO) with an application scope from the ServletContext ?
Hi,
Happy new year
I have created a class that implements ServletContextListener.
In the method public void contextDestroyed(ServletContextEvent event),
I need to retrieve an Application State Object (ASO) of tapestry 4
with an application scope (not session).
My question is how to retrieve an Application State Object (ASO) from
the ServletContext ?
public void contextDestroyed(ServletContextEvent event) {
ServletContext context = event.getServletContext();
// retrieve myApplicationObject here
}
In hivemodule.xml:
...
...
Thanks so much,
D.
-
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