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Posted to users@tapestry.apache.org by Hugues Narjoux <hu...@gmail.com> on 2009/03/18 14:00:53 UTC
[T5.0.18] Class re-loading and eclipse debugger
Hi,
I am using Tapestry 5.0.18 and I read a lot about tapestry being able to
reload classes without a restart. See:
http://tapestry.apache.org/tapestry5/guide/reload.html
But when I run my webapp in eclipse with WTP tools, and whenever I make a
change to one of my page class, eclipse is always complaining that he didn't
succedd in reloading the class and the modification is not taken into
account.
Am I doing something wrong ? Is this an eclipse problem ?
Thanks,
Hugues
Re: [T5.0.18] Class re-loading and eclipse debugger
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Wed, Mar 18, 2009 at 10:57 AM, Hugues Narjoux
<hu...@gmail.com> wrote:
> WTP was great here because it
> would let you configure a deployment descriptor and automaticaly deploy and
> re-assemble your webapp.
I guess the problem is exactly the reassemble process. Many times,
when using WTP in a Struts (aaaaaaaaaaaaaaaaaargh!) project, it
wouldn't update the application correctly when I changed one class.
Then I gave up. I never really deploy an application in development,
just when really deploying to the production server, not wasting a lot
of time with it.
--
Thiago
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Re: [T5.0.18] Class re-loading and eclipse debugger
Posted by Hugues Narjoux <hu...@gmail.com>.
I just ran a test: when a java file is modified, WTP recompiles, publishes
it to the server location automatically (so the .class file is updated) but
tapestry won't see the change ... This is odd ...
You're right, jetty or tomcat launchers are much easier to use. But I have
an overly complex project structure where resources are scattered all over
the place and arn't in a single directory. WTP was great here because it
would let you configure a deployment descriptor and automaticaly deploy and
re-assemble your webapp. I could not find the equivalent in jetty plugins or
tomcats ...
On Wed, Mar 18, 2009 at 2:36 PM, Thiago H. de Paula Figueiredo <
thiagohp@gmail.com> wrote:
> On Wed, Mar 18, 2009 at 10:29 AM, Hugues Narjoux
> <hu...@gmail.com> wrote:
> > Wow ! Thanks for the quick reply !
>
> You're welcome!
>
> > However even if i ignore the message, the modification won't appear ...
>
> I don't use WTP for a very long time (it was much worse and error
> prone than Tomcat Launcher), so I don't know what can be the problem.
> I run Jetty directly, no plugins, just a small class with a main that
> instantiates a server, a webapp context and runs them. :)
>
> > How does this class relaoding thing works ? Is tapestry detecting a
> change
> > in the .class file ? Or a change in the class loader ?
>
> Changes in .class files. Maybe your problem is exactly that: you
> recompile a class, but the .class file that is in the classpath is not
> updated.
>
> --
> Thiago
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
Re: [T5.0.18] Class re-loading and eclipse debugger
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Wed, Mar 18, 2009 at 10:29 AM, Hugues Narjoux
<hu...@gmail.com> wrote:
> Wow ! Thanks for the quick reply !
You're welcome!
> However even if i ignore the message, the modification won't appear ...
I don't use WTP for a very long time (it was much worse and error
prone than Tomcat Launcher), so I don't know what can be the problem.
I run Jetty directly, no plugins, just a small class with a main that
instantiates a server, a webapp context and runs them. :)
> How does this class relaoding thing works ? Is tapestry detecting a change
> in the .class file ? Or a change in the class loader ?
Changes in .class files. Maybe your problem is exactly that: you
recompile a class, but the .class file that is in the classpath is not
updated.
--
Thiago
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Re: [T5.0.18] Class re-loading and eclipse debugger
Posted by Hugues Narjoux <hu...@gmail.com>.
Wow ! Thanks for the quick reply !
However even if i ignore the message, the modification won't appear ...
How does this class relaoding thing works ? Is tapestry detecting a change
in the .class file ? Or a change in the class loader ?
Thanks
Hugues
On Wed, Mar 18, 2009 at 2:03 PM, Thiago H. de Paula Figueiredo <
thiagohp@gmail.com> wrote:
> On Wed, Mar 18, 2009 at 10:00 AM, Hugues Narjoux
> <hu...@gmail.com> wrote:
> > Hi,
> > I am using Tapestry 5.0.18 and I read a lot about tapestry being able to
> > reload classes without a restart. See:
> > http://tapestry.apache.org/tapestry5/guide/reload.html
> >
> > But when I run my webapp in eclipse with WTP tools, and whenever I make a
> > change to one of my page class, eclipse is always complaining that he
> didn't
> > succedd in reloading the class and the modification is not taken into
> > account.
> >
> > Am I doing something wrong ? Is this an eclipse problem ?
>
> Just ignore the message. Eclipse doesn't know about Tapestry's live
> class reloading, while the regular Java debugger one just handles
> changes inside method bodies, not changes in class structure.
>
> --
> Thiago
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
Re: [T5.0.18] Class re-loading and eclipse debugger
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Wed, Mar 18, 2009 at 10:00 AM, Hugues Narjoux
<hu...@gmail.com> wrote:
> Hi,
> I am using Tapestry 5.0.18 and I read a lot about tapestry being able to
> reload classes without a restart. See:
> http://tapestry.apache.org/tapestry5/guide/reload.html
>
> But when I run my webapp in eclipse with WTP tools, and whenever I make a
> change to one of my page class, eclipse is always complaining that he didn't
> succedd in reloading the class and the modification is not taken into
> account.
>
> Am I doing something wrong ? Is this an eclipse problem ?
Just ignore the message. Eclipse doesn't know about Tapestry's live
class reloading, while the regular Java debugger one just handles
changes inside method bodies, not changes in class structure.
--
Thiago
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Re: [T5.0.18] Class re-loading and eclipse debugger
Posted by Borut Bolčina <bo...@gmail.com>.
Check this out
http://bbwebcraft.blogspot.com/2009/01/task-3-rapid-turnaround-in-tapestry-5.html
Cheers,
borut
2009/3/18 Hugues Narjoux <hu...@gmail.com>
> Hi,
> I am using Tapestry 5.0.18 and I read a lot about tapestry being able to
> reload classes without a restart. See:
> http://tapestry.apache.org/tapestry5/guide/reload.html
>
> But when I run my webapp in eclipse with WTP tools, and whenever I make a
> change to one of my page class, eclipse is always complaining that he
> didn't
> succedd in reloading the class and the modification is not taken into
> account.
>
> Am I doing something wrong ? Is this an eclipse problem ?
>
> Thanks,
> Hugues
>