from:"Jonathan Locke"

Re: [Wicket-user] Wicket customizability

2007-07-25 Thread Jonathan Locke



i don't really understand what you're talking about because i don't know
your
requirements.  but don't forget two things: 1) the primary unit of reuse in 
wicket is the panel and 2) you can put any component (such as a panel) in a 
completely self-contained jar because of packaged resources.  if you just
want
users to be able to add panels that work on entities exposed through an API
maybe all you need is jarred panels.


Wander Grevink wrote:
 
 Hi all,
 
 I have just created my first wicket app: a simple JCR (jsr-170)
 browser/editor with a tree showing nodes on the left, a
 form for editing node properties on the right, and a menu with some
 actions (add, delete, save etc.) on top.
 All 100% Ajax, it just works!
 
 As a side note: I started from scratch (completely new to wicket), and it
 took me two weeks to learn wicket and build
 the application. Needless to say that I'm a definite a convert, thank you
 guys for creating this wonderful thing called
 wicket!
 
 Now for my question(s):
 
 What my shop actually needs is a customizable gui. We develop a core
 module and users can write plugins for it, think
 eclipse, firefox etc.
 
 I know of Pax Wicket which is an An OSGification of the Wicket web
 framework. It sounds very interesting and reading
 the documentation it looks like exactly the thing we need. However
 creating a 'Pax Wicket' application is something very
 different from an ordinary Wicket app. I have the impression that 'going
 OSGi' is a decision comparable to 'going J2EE'
   and should not be made overnight, but I might be wrong there.
 
 I would prefer a simpler way of going this. Therefore I did some
 experimenting and tried to inject a wicket Component (a
 Label) with wicket-spring, but found that injecting Wicket Components
 doesn't work. The proxy will try to access a
 protected method on Component and fail. My guess is that that is a Good
 Thing because you're not supposed to inject
 wicket Components this way, but I may be wrong there, am I? Is there
 another way?
 
 What I did manage with just base Wicket was a custom
 ModalWindow.PageCreator that dynamically loads a Page (using
 Class.forName) in it's createPage() method. That works, and because the
 class name is stored in the Model (it's a
 property of the selected node in the tree) I now have a 'dynamic' modal
 window whose implementation (java + markup)
 depends on the selected treenode and can be plugged in by adding a jar
 file to the project.
 
 However, extensibility 'just' through popup dialogs is not enough, and as
 far as I understand it is not possible to do
 the same trick for 'inline' (on the main Page) Components. Or is it?
 
 
 I guess that my question boils down to this: Am I on the right track or
 should I stop doing this and go to my boss and 
 tell him that we should go OSGi (and Java 5 btw. currently we are strictly
 bound to jdk1.4)
 
 Regards
 Wander
 
 
 
 
 
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Re: [Wicket-user] Page lifetime in wicket

2007-07-24 Thread Jonathan Locke



a lot of casting there. 

maybe we should make WebApplication.get() return
(WebApplication)Application.get()?


Eelco Hillenius wrote:
 
 By default which temp directory does all the all pages stored into?
 
   public FilePageStore()
   {
   
 this((File)((WebApplication)Application.get()).getServletContext().getAttribute(
   javax.servlet.context.tempdir));
   }
 
 Eelco
 
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Re: [Wicket-user] Sessionless Wicket?

2007-07-23 Thread Jonathan Locke



this is generally in sync with what i know about session usage.  if you're
using 1.3 and detachable models and so forth, 20K sessions on a reasonable
box is not going to be a problem.  wicket pages really are pretty small.  a
very complex one might be 50-100K and i've never actually seen one much over
about 100K myself.  and since 1.3 pages everything but the most recent page
to disk, you've got maybe 50K per session.  complex pages could be 80-100K,
but simpler pages can also be 15K or less.  if you take 50K as an average,
that's 20 per MB * 1GB (1,000 MB) = 20,000.


Steven Zou wrote:
 
 Hi,Maciej,really? it's so exciting.
 we're choosing framework now,and I prefer wicket, but the heavy session is
 my care.
 but there're some questions:
 (1)where you result from? Is the 20,200 reality request and not from
 jmeter(or other stress test tool)?
 (2)300MB/20,000=15KB,Does it mean only 15KB per session? I think 15KB
 isn't enough for only one page.
 (3)Would you like give us some experience for so high load web
 application?
 
 thanks.
 
 
 Maciej Andreas Bednarz wrote:
 
 Hello Jeremy,
 
 try also to disable any versioning and use read only models. I have tuned
 my private wicket project this way and it now supports more than 20.000
 concurrent sessions on a single tomcat server. If everything in your
 model is serializable you can also use tomcats disk or jdbc persistence
 store for sessions. There is also a terracotta project, so you can
 cluster your wicket (1.3) application lineary. My average memory usage
 with 20.000 sessions in memory and very complex page structures (multiple
 including page object levels) is about 300MB. I think this could serve
 even a large community site :-)
 
 Maciej
   - Original Message - 
   From: Igor Vaynberg 
   To: [EMAIL PROTECTED] ;
 wicket-user@lists.sourceforge.net 
   Sent: Thursday, May 03, 2007 7:27 AM
   Subject: Re: [Wicket-user] Sessionless Wicket?
 
 
   detachable models are a must.
 
   in my experience a wicket page is only about 50kb on average. that
 would hardly cause an OOME on a server. 1.3 has second level session
 store that pages to disk, so that is something else you might want to
 try. 
 
   once you convert to detachable models oomes should go away.
 
   there is an example in wicket-examples on stateless stuff if you need
 to go that far.
 
   -igor
 
 
 
 
   On 5/2/07, Jeremy Thomerson [EMAIL PROTECTED] wrote:
 I know that I read somewhere that there is, or is going to be, a way
 to run your wicket application without creating a session (until
 absolutely necessary).  We have a site that has mostly been converted to
 Wicket now, and almost all of it is state-less data  The URLs are all
 bookmarkable (98% of them are), so there is not much state to track.  We
 don't need a full object graph of all your pages and components, except
 for on very few pages once you have signed in.  
 
 We're experiencing out of memory problems increasingly with an
 increase in traffic.  I'm not holding much in the session, but objects
 are held in pages and components I now believe we should have used
 detachable models for many things rather than directly holding a
 reference to a DB-backed object.  Should I start by going back and
 retrofitting many of those private references within components to use
 detachable models so that the objects are not held in memory? 
 
 Any other suggestions?
 
 Thank you!
 Jeremy Thomerson
 texashuntfish.com
 
 
 

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Re: [Wicket-user] wicket-picocontainer?

2007-07-18 Thread Jonathan Locke



I have not yet had a real need for IOC, but when I last looked some
years ago, picocontainer looked pretty nice.  We do have guice now,
but I think it would be great to integrate Wicket with picocontainer.
Unfortunately, I'm not aware of anyone doing this work.


David Rosenstrauch wrote:
 
 I saw that the 1.3 distribution contains wicket-ioc*.jar, along with 
 wicket-guice*.jar, and wicket-spring*.jar.
 
 Just wondering:  has anybody put together a wicket-picocontainer package 
 too, perchance?
 
 TIA,
 
 DR
 
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Re: [Wicket-user] How to display line break in properties file

2007-07-13 Thread Jonathan Locke

can't you just use \n in the properties file?
(http://www.exampledepot.com/egs/java.util/Props.html)

once you have a new line in there, you may want to create a subclass of
feedbackpanel and override newMessageDisplayComponent:

protected Component newMessageDisplayComponent(String id,
FeedbackMessage
message)
{
Label label = new Label(id, message.getMessage().toString());

label.setEscapeModelStrings(FeedbackPanel.this.getEscapeModelStrings());
return label;
}

so it returns a MultiLineLabel. also, btw, if you call
setEscapeModelStrings(false) in your
feedback panel subclass (i have a subclass of Label called HtmlLabel which
does exactly
this for each constructor of Label), you can get html in your feedback as
well (although
you need to be careful not to put any un-escaped user values into the
feedback by way
of variable substitutions or you might wind up with strange formatting or
even security
problems).

Dean Del Ponte wrote:

Hello everyone,

I'm new to Wicket and really enjoy it so far. My question is: How can
I add a line break to a value in properties file?

For example, I'm displaying error messages on my page, and the text is
retrieved from the associated properties file. One of the values in the
properties file is rather long, and I would simply like to display it on
the page in two lines instead of one. Any easy way to do this?

Thanks,

Dean

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Re: [Wicket-user] NumberValidator allowing null fields ?

2007-07-07 Thread Jonathan Locke



maybe this is a bug?  i have a ConstrainedPropertyValidator which extends
AbstractValidator (which implements INullAcceptingValidator) and returns
true for validateOnNullValue() and it works just fine.  you might need to 
trace into the validation code to figure out why it's not calling your
validator.


Thies Edeling wrote:
 
 Hi
 
 How can I have a NumberValidator allow null values ? I tried extending 
 the DoubleRangeValidator, implement the INullAcceptingValidator 
 interface and returning true for validateOnNullValue but my Validator 
 still isn't called. Also not setting the required property on a 
 TextField won't give help, when going through the visitFormComponents 
 the FormComponent is still listed as not valid when no value is provided 
 in the form. Thanks.
 
 gr,
 Thies
 
 
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Re: [Wicket-user] Multiple asynchronous Ajax calls - once again

2007-07-06 Thread Jonathan Locke

i'm also pretty interested in this problem. even if making wicket fully
multithreaded
would be extremely difficult (if it's desirable at all), it might be
possible to increase
wicket's liveness within contended sessions. in particular, there are more
and less
important ajax requests. if you have a form that is doing a slow db-driven
auto-complete
ajax request and the user finishes typing or picks a completion and hits
submit,
it's really not a good thing to block on the now-useless auto-complete ajax
request
until it finishes before starting the submit. by asking the lower-priority
ajax
request to stop itself (or by invoking the deprecated and controversial
Thread.stop()
method... can that even be done in a web app container?) it might be
possible
to get higher priority threads to preempt and grab the page map lock from
lower
priority ones. in general the problem with wicket is that it has a stateful
and
mutable component model. if one thread is busy recursively rendering
component
A and another thread decides to remove it in the middle of that process,
what then?
to allow the two threads to both work on the component model, you can either
block
and serialize the threads (current approach) or you can copy the at least
part of the
model (and any naive approach here would be totally prohibitive). since a
wicket
ajax request to do a partial render is often localized to a particular piece
of the model,
it might be possible to do some tree-granularity lock splitting, but this is
a really
major piece of work and will require at least a lot of discussion and
another release
cycle after 1.3 to address.

Daniel Stoch-2 wrote:

Hi,

There was a thread in may
(http://www.mail-archive.com/wicket-user@lists.sourceforge.net/msg28185.html)
about two asynchronous ajax calls. I have already the similar problem:
I want to use for example 4 AjaxLazyLoadPanel components and load
their contents asynchronous. But all ajax requests are processed in
sequence (Channel busy - postponing...). The Matej's answer was:

The requests are asynchronous (they don't block request),
but they are scheduled in channel so one request waits until the
previous one finishes.

Problem is that the pagemap is locked, so you can't have two requests
running on parallel on the same pagemap. If you have operation that
takes too long you should use a worker thread and a periodical
polling.

I don't understand why pagmap is locked and I can't have two or more
request processing on the server (what is the reason of such
behaviour)? This is probably well known synchronization in session
problem: it solves many issues but today, when people want high
responsive ajaxified applications, it seems that it is a too
restrictive (?).
I think the best solution would be, when these request could be
processed simultaneously, but partial page rendering (rendering
components added to AjaxRequestTarget) can be still done in sequence.
I hope this is clear enough :).
Polling is not a very elegant and efficient solution (maybe Comet, but
not all servlet containers support this yet).

--
Daniel

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Re: [Wicket-user] access to private fields

2007-07-06 Thread Jonathan Locke



i think your argument is willfully slanted.  generic manipulation and 
persistence can be good reasons to reach into an implementation which
otherwise does not wish to expose properties or fields at all.  i personally
prefer objects that keep all these details private.  i would hope that
private accessor methods took precedence over private fields, but
given that, i think accessors in general are best avoided and it's not
necessarily good to expose private details simply to allow them to 
be manipulated by a framework such as spring, wicket or hibernate.
that said, i think the real root of this problem is that java simply
fails to adequately express the protection attribute granularity that's
required here.  being able to define new protection attributes that 
limit the visibility of details based on the package (and possibly other
details like the thread group) of the caller would be the best way and
at the present time quite impossible.


Kent Tong wrote:
 
 Hi,
 
 Wicket 1.3 is now allowing PropertyModel to access private fields of the
 target object. However, I am not sure if this is a recommended practice.
 There are basically two supporting reasons for this feature:
 1) No need to generate boring getters and setters.
 2) Hibernate  Spring also support this.
 
 If we accept that 1) is a good reason for allowing private field access, 
 then according to the same reasoning, we should always make our fields
 public and thus eliminate the need for getters and setters. As we are
 not going that, so I believe 1) is not a sufficient reason.
 
 Looking into 2), Hibernate is trying to persist the *implementation* of
 our class. Therefore, it may need access to its private fields. Therefore,
 it can be argued that Hibernate is in a special position to be granted
 such special access. Even so, its official documentation recommends using
 getters and setters 
 (http://www.hibernate.org/hib_docs/v3/reference/en/html/persistent-classes.html#persistent-classes-pojo-accessors).
 However, I don't see why PropertyModel (or Wicket code in general) is in
 such a special position. It is part of the UI and I don't see why UI code
 should need access to implementation details.
 
 I don't know how Spring access private fields, so I can't comment on that
 one.
 
 So, is this feature a recommended practice or just a backdoor for those
 who prefer using public fields?
 
 
 
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Re: [Wicket-user] access to private fields

2007-07-06 Thread Jonathan Locke


to give a pseudo-code example of what i mean, imagine something 
like this:

hibernate wicket int getValue() { ... }

where hibernate and wicket are attributes that expose the method
only to org.apache.wicket.** and hibernate's package.  this sort of 
thing is possible in scala, but not java.

in any case, java is broken here and so the choice on this feature is 
not clear.  maybe the best thing is to make private introspection an
application setting that is off by default?  this might be a good idea
for the sake of security anyway.


Jonathan Locke wrote:
 
 
 i think your argument is willfully slanted.  generic manipulation and 
 persistence can be good reasons to reach into an implementation which
 otherwise does not wish to expose properties or fields at all.  i
 personally
 prefer objects that keep all these details private.  i would hope that
 private accessor methods took precedence over private fields, but
 given that, i think accessors in general are best avoided and it's not
 necessarily good to expose private details simply to allow them to 
 be manipulated by a framework such as spring, wicket or hibernate.
 that said, i think the real root of this problem is that java simply
 fails to adequately express the protection attribute granularity that's
 required here.  being able to define new protection attributes that 
 limit the visibility of details based on the package (and possibly other
 details like the thread group) of the caller would be the best way and
 at the present time quite impossible.
 
 
 Kent Tong wrote:
 
 Hi,
 
 Wicket 1.3 is now allowing PropertyModel to access private fields of the
 target object. However, I am not sure if this is a recommended practice.
 There are basically two supporting reasons for this feature:
 1) No need to generate boring getters and setters.
 2) Hibernate  Spring also support this.
 
 If we accept that 1) is a good reason for allowing private field access, 
 then according to the same reasoning, we should always make our fields
 public and thus eliminate the need for getters and setters. As we are
 not going that, so I believe 1) is not a sufficient reason.
 
 Looking into 2), Hibernate is trying to persist the *implementation* of
 our class. Therefore, it may need access to its private fields.
 Therefore,
 it can be argued that Hibernate is in a special position to be granted
 such special access. Even so, its official documentation recommends using
 getters and setters 
 (http://www.hibernate.org/hib_docs/v3/reference/en/html/persistent-classes.html#persistent-classes-pojo-accessors).
 However, I don't see why PropertyModel (or Wicket code in general) is in
 such a special position. It is part of the UI and I don't see why UI code
 should need access to implementation details.
 
 I don't know how Spring access private fields, so I can't comment on that
 one.
 
 So, is this feature a recommended practice or just a backdoor for those
 who prefer using public fields?
 
 
 
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Re: [Wicket-user] Multiple asynchronous Ajax calls - once again

2007-07-06 Thread Jonathan Locke

yeah, even my pre-emptive lock claiming idea would require some thinking
about versioning. what happens to all the versioning information recorded
by the pre-empted thread? we'd need a transacted commit on that.

actually, if you think about database technologies here, one way to get
better
locking behavior might be to refactor all the component mutation code in
wicket
so it's all optimistically locked, isolated and transacted. threads could
freely do
mutations, but those changes would be magically invisible to other threads.
then at the end of the request, versioning would try to commit the changes
made to the hierarchy. if the transaction failed due to optimistic locking
(writer
contention to the component hierarchy), the thread could actually discard
its
results and re-do the request on the new hierarchy before returning results.
all of the usual problems with reader/writer multithreading come into play
here
of course... component mutating threads (writers) could potentially starve
and
so forth... but it's something worth thinking about anyway.

Eelco Hillenius wrote:

in general the problem with wicket is that it has a stateful
and
mutable component model. if one thread is busy recursively rendering
component
A and another thread decides to remove it in the middle of that process,
what then?
to allow the two threads to both work on the component model, you can
either
block
and serialize the threads (current approach) or you can copy the at least
part of the
model (and any naive approach here would be totally prohibitive). since
a
wicket
ajax request to do a partial render is often localized to a particular
piece
of the model,
it might be possible to do some tree-granularity lock splitting, but this
is
a really
major piece of work and will require at least a lot of discussion and
another release
cycle after 1.3 to address.

Even if we would be able to provide a thread safe programming model by
doing lots of magic under the hood, we would still have a problem
determining versions. But sure, we should try to keep pushing the
envelope where we can.

Eelco

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Re: [Wicket-user] access to private fields

2007-07-06 Thread Jonathan Locke



i didn't say that's fine.  it's clearly not.  i was just pointing out
there's 
another side to this argument because java's protection attributes are 
so coarse grained.  by not supporting this feature, some classes which 
otherwise would have all implementation details private would be forced 
to make those details public JUST to allow wicket to update the model.  
this may be the java way at present, but it's not fine either.  this is 
why i suggested a switch to turn this on rather than just abandoning
the feature.  it's basically a no-win situation where you can choose your
poison.  i'm just advocating that we let people make that choice for
themselves.


Eelco Hillenius wrote:
 
 i think your argument is willfully slanted.  generic manipulation and
 persistence can be good reasons to reach into an implementation which
 otherwise does not wish to expose properties or fields at all.  i
 personally
 prefer objects that keep all these details private.  i would hope that
 private accessor methods took precedence over private fields, but
 given that, i think accessors in general are best avoided and it's not
 necessarily good to expose private details simply to allow them to
 be manipulated by a framework such as spring, wicket or hibernate.
 that said, i think the real root of this problem is that java simply
 fails to adequately express the protection attribute granularity that's
 required here.  being able to define new protection attributes that
 limit the visibility of details based on the package (and possibly other
 details like the thread group) of the caller would be the best way and
 at the present time quite impossible.
 
 As much as I agree with you in general, in this particular case, we
 provide direct access to private members where you normally (using
 straightforward Java/ no introspection) wouldn't have it.
 Theoretically, this could result in people accessing those members
 directly where they shouldn't. Even if you think that's fine, I doubt
 whether this is something Wicket should support.
 
 Eelco
 
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Re: [Wicket-user] Multiple asynchronous Ajax calls - once again

2007-07-06 Thread Jonathan Locke

yeah, it would not be straightforward, which is why it will take some
thinking.
might be one of these things where the default behavior is safe and coarse
grained but then provide a way to turn on fancy multithreading and provide
calls to notify the system of changes like the one you're talking about.
there's
a pretty long discussion in this topic for sure.

igor.vaynberg wrote:

On 7/6/07, Jonathan Locke [EMAIL PROTECTED] wrote:

yeah, even my pre-emptive lock claiming idea would require some thinking
about versioning. what happens to all the versioning information
recorded
by the pre-empted thread? we'd need a transacted commit on that.

actually, if you think about database technologies here, one way to get
better
locking behavior might be to refactor all the component mutation code in
wicket
so it's all optimistically locked, isolated and transacted. threads
could
freely do
mutations, but those changes would be magically invisible to other
threads.
then at the end of the request, versioning would try to commit the
changes
made to the hierarchy. if the transaction failed due to optimistic
locking
(writer
contention to the component hierarchy), the thread could actually discard
its
results and re-do the request on the new hierarchy before returning
results.
all of the usual problems with reader/writer multithreading come into
play
here
of course... component mutating threads (writers) could potentially
starve
and
so forth... but it's something worth thinking about anyway.

this sounds great for code we control, but what about user code? if the
user
calls a method from onclick that invocation needs to be threadsafe - it
might be mutating fields on that component.
-igor

Eelco Hillenius wrote:

in general the problem with wicket is that it has a stateful
and
mutable component model. if one thread is busy recursively rendering
component
A and another thread decides to remove it in the middle of that
process,
what then?
to allow the two threads to both work on the component model, you can
either
block
and serialize the threads (current approach) or you can copy the at
least
part of the
model (and any naive approach here would be totally
prohibitive). since
a
wicket
ajax request to do a partial render is often localized to a particular
piece
of the model,
it might be possible to do some tree-granularity lock splitting, but
this
is
a really
major piece of work and will require at least a lot of discussion and
another release
cycle after 1.3 to address.

Eelco

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Re: [Wicket-user] Wicket mailing list rules with regards to jobs

2007-07-03 Thread Jonathan Locke



if it's specifically about wicket, posting is encouraged.


Watter wrote:
 
 Are there any rules about a company posting to this list about potential
 open positions around Wicket?
 
 Matt
 
 

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[Wicket-user] pagemap locking

2007-06-28 Thread Jonathan Locke



getting this exception.  seems like a request thread might be hanging with
the page map locked?  anyone have any ideas?  thanks!

[11:19:44] ERROR - RequestCycle   - After 1 minute the Pagemap
null is still locked by: Thread[ajp-8009-1,5,main], giving up trying to get
the page for path: 2:form:tagEditorPanel:addTagForm:newTagField
org.apache.wicket.WicketRuntimeException: After 1 minute the Pagemap null is
still locked by: Thread[ajp-8009-1,5,main], giving up trying to get the page
for path: 2:form:tagEditorPanel:addTagForm:newTagField
at org.apache.wicket.Session.getPage(Session.java:714)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.resolveRenderedPage(AbstractRequestCycleProcessor.java:427)
at
org.apache.wicket.protocol.http.WebRequestCycleProcessor.resolve(WebRequestCycleProcessor.java:139)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1090)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1176)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:499)
at
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:257)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:127)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.cluster.tcp.ReplicationValve.invoke(ReplicationValve.java:346)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:425)
at
org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:452)
at
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
at java.lang.Thread.run(Thread.java:619)


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Re: [Wicket-user] pagemap locking

2007-06-28 Thread Jonathan Locke



makes sense all right.  is there any way we could print out a stack trace of
the thread that's holding the monitor we're trying to grab?  maybe via JMX? 
this would be extremely useful when this exception is thrown!


Martijn Dashorst wrote:
 
 Yep, long running request blocks incoming request.
 
 Martijn
 
 On 6/28/07, Jonathan Locke [EMAIL PROTECTED] wrote:


 getting this exception.  seems like a request thread might be hanging
 with
 the page map locked?  anyone have any ideas?  thanks!

 [11:19:44] ERROR - RequestCycle   - After 1 minute the
 Pagemap
 null is still locked by: Thread[ajp-8009-1,5,main], giving up trying to
 get
 the page for path: 2:form:tagEditorPanel:addTagForm:newTagField
 org.apache.wicket.WicketRuntimeException: After 1 minute the Pagemap null
 is
 still locked by: Thread[ajp-8009-1,5,main], giving up trying to get the
 page
 for path: 2:form:tagEditorPanel:addTagForm:newTagField
 at org.apache.wicket.Session.getPage(Session.java:714)
 at
 org.apache.wicket.request.AbstractRequestCycleProcessor.resolveRenderedPage(AbstractRequestCycleProcessor.java:427)
 at
 org.apache.wicket.protocol.http.WebRequestCycleProcessor.resolve(WebRequestCycleProcessor.java:139)
 at org.apache.wicket.RequestCycle.step(RequestCycle.java:1090)
 at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1176)
 at org.apache.wicket.RequestCycle.request(RequestCycle.java:499)
 at
 org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:257)
 at
 org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:127)
 at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at
 org.apache.catalina.cluster.tcp.ReplicationValve.invoke(ReplicationValve.java:346)
 at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at
 org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:425)
 at
 org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:452)
 at
 org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
 at java.lang.Thread.run(Thread.java:619)


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 Wicket 1.2.6 contains a very important fix. Download Wicket now!
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Re: [Wicket-user] pagemap locking

2007-06-28 Thread Jonathan Locke



yeah, i just figured that out.  i'll just patch our wicket for now.  but we
should add this for wicket 1.4 (in a nicer way than this (generic utility
method), of course):

final StringBuilder builder = 
new StringBuilder();
StackTraceElement[] elements = 
t.getStackTrace();
for (int i = 0; i  
elements.length; i++) {

builder.append(elements[i]);
}
throw new 
WicketRuntimeException(After  + timeout +  the Pagemap 
+ pageMapName + 
 is still locked by:  + t
+ , giving up 
trying to get the page for path:  + path + \nStack
Trace:  + builder.toString());



Eelco Hillenius wrote:
 
 makes sense all right.  is there any way we could print out a stack trace
 of
 the thread that's holding the monitor we're trying to grab?  maybe via
 JMX?
 this would be extremely useful when this exception is thrown!
 
 We've had a thread about that, and the conclusion was that this is
 possible (I believe Johan built it) but only with Java 5.
 
 Eelco
 
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[Wicket-user] NPE in PropertyResolver

2007-06-25 Thread Jonathan Locke



i'm getting this in a unit test and wondering if anyone knows why that might
happen:

Caused by: java.lang.NullPointerException
at
org.apache.wicket.util.lang.PropertyResolver.getGetAndSetter(PropertyResolver.java:274)
at
org.apache.wicket.util.lang.PropertyResolver.getObjectAndGetSetter(PropertyResolver.java:266)
at
org.apache.wicket.util.lang.PropertyResolver.getPropertyClass(PropertyResolver.java:144)
at
org.apache.wicket.model.AbstractPropertyModel.getObjectClass(AbstractPropertyModel.java:199)
at
org.apache.wicket.markup.html.form.AbstractTextComponent.getModelType(AbstractTextComponent.java:119)
at
org.apache.wicket.markup.html.form.AbstractTextComponent.onBeforeRender(AbstractTextComponent.java:107)
at org.apache.wicket.Component.beforeRender(Component.java:846)
at
org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1449)
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Re: [Wicket-user] NPE in PropertyResolver

2007-06-25 Thread Jonathan Locke



thanks.  seems to work now.


Al Maw wrote:
 
 Al Maw wrote:
 Going back to Jonathan's original unit test case, I'm thinking maybe we 
 can lazy-init this to make unit testing more bearable.
 
 Done.
 
 Al
 
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Re: [Wicket-user] Wicket 1.2.4 - Cross session concurrency issues

2007-06-25 Thread Jonathan Locke

one of the great things about open source software is that you can
investigate an issue like this yourself and suggest a patch.

Seldon, Richard wrote:

Hello all,

Further to email sent out back on 15/06/07 regarding concurrency issues
using Wicket 1.2.4 and load runner...

Really keen to know best place to get a list of outstanding defects
between
releases wicket 1.2.4 and 1.2.6 is located? Are there release notes / URL
links etc with this info easily available? Apache issues list starts with
version 1.2.7 but this is no good in our case.

Our concurrency problem can be reproduced without load testing s/w and
(after exhaustively going through all our static code usages and other
possible areas of contention) likely explanation now sits with the version
of Wicket we're using. The Wicket website does include a section about a
critical bug in 1.2.4. In our case, if this is the problem, then it has
proven to be a show-stopper.

We are hoping to go live with our production release of SOA app in next
few
days and have concluded we may need to either go with 1.2.6 (if the
migration is proven to fix our defects in test environments) or apply a
patch to 1.2.4 that covers just whats needed from 1.2.6 to fix the
cross-session issues.

One other point I'd really like to hear discussion about:- we're using WID
version 2.0.1.2 which provides support for Java 1.4. At present, this
limits
us up to Wicket 1.3 - will there be ongoing maintenance support for users
unable to migrate further due to limitations in the current app server
versions of Java support available?

As developers, we're definitely pro-Wicket but getting nervous regarding
this project's usage of Wicket and outstanding defects. Especially with
migration route options outlined above.
Hope some of you can put these fears to rest?
Cheers, Rich.

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[Wicket-user] Unable to find the markup for the component

2007-06-25 Thread Jonathan Locke


i'm getting the exception below.

have there been any recent changes to markup finding or is this probably my
own issue?

thanks,

jon

--

WicketMessage: Unable to find the markup for the component. That may be due
to transparent containers or components implementing IComponentResolver:
[MarkupContainer [Component id = 0, page =
thoof.web.pages.story.improve.ImproveStoryPage, path =
2:proposedStoryChangeVotingArea:proposedStoryChanges:0.ListItem, isVisible =
true, isVersioned = false]]

Root cause:

org.apache.wicket.WicketRuntimeException: Unable to find the markup for the
component. That may be due to transparent containers or components
implementing IComponentResolver: [MarkupContainer [Component id = 0, page =
com.foo.MyPage, path = 2:myArea:mylist:0.ListItem, isVisible = true,
isVersioned = false]]
 at
org.apache.wicket.MarkupFragmentFinder.find(MarkupFragmentFinder.java:111)
 at org.apache.wicket.Component.getMarkupAttributes(Component.java:1176)
 at org.apache.wicket.Component.getMarkupId(Component.java:1211)
 at org.apache.wicket.Component.onComponentTag(Component.java:3198)
 at org.apache.wicket.Component.renderComponent(Component.java:2073)
 at
org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1294)
 at org.apache.wicket.Component.render(Component.java:1931)
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Re: [Wicket-user] Unable to find the markup for the component

2007-06-25 Thread Jonathan Locke



this does at least appear to have started happening after updating wicket
(either in the past few days or today).


Jonathan Locke wrote:
 
 i'm getting the exception below.
 
 have there been any recent changes to markup finding or is this probably
 my own issue?
 
 thanks,
 
 jon
 
 --
 
 WicketMessage: Unable to find the markup for the component. That may be
 due to transparent containers or components implementing
 IComponentResolver: [MarkupContainer [Component id = 0, page =
 com.foo.MyPage, path = 2:myArea:mylist:0.ListItem, isVisible = true,
 isVersioned = false]]
 
 Root cause:
 
 org.apache.wicket.WicketRuntimeException: Unable to find the markup for
 the component. That may be due to transparent containers or components
 implementing IComponentResolver: [MarkupContainer [Component id = 0, page
 = com.foo.MyPage, path = 2:myArea:mylist:0.ListItem, isVisible = true,
 isVersioned = false]]
  at
 org.apache.wicket.MarkupFragmentFinder.find(MarkupFragmentFinder.java:111)
  at
 org.apache.wicket.Component.getMarkupAttributes(Component.java:1176)
  at org.apache.wicket.Component.getMarkupId(Component.java:1211)
  at org.apache.wicket.Component.onComponentTag(Component.java:3198)
  at org.apache.wicket.Component.renderComponent(Component.java:2073)
  at
 org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1294)
  at org.apache.wicket.Component.render(Component.java:1931)
 

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Re: [Wicket-user] Unable to find the markup for the component

2007-06-25 Thread Jonathan Locke



ah.  i think maybe it's not just me:

https://issues.apache.org/jira/browse/WICKET-592


Jonathan Locke wrote:
 
 i'm getting the exception below.
 
 have there been any recent changes to markup finding or is this probably
 my own issue?
 
 thanks,
 
 jon
 
 --
 
 WicketMessage: Unable to find the markup for the component. That may be
 due to transparent containers or components implementing
 IComponentResolver: [MarkupContainer [Component id = 0, page =
 com.foo.MyPage, path = 2:myArea:mylist:0.ListItem, isVisible = true,
 isVersioned = false]]
 
 Root cause:
 
 org.apache.wicket.WicketRuntimeException: Unable to find the markup for
 the component. That may be due to transparent containers or components
 implementing IComponentResolver: [MarkupContainer [Component id = 0, page
 = com.foo.MyPage, path = 2:myArea:mylist:0.ListItem, isVisible = true,
 isVersioned = false]]
  at
 org.apache.wicket.MarkupFragmentFinder.find(MarkupFragmentFinder.java:111)
  at
 org.apache.wicket.Component.getMarkupAttributes(Component.java:1176)
  at org.apache.wicket.Component.getMarkupId(Component.java:1211)
  at org.apache.wicket.Component.onComponentTag(Component.java:3198)
  at org.apache.wicket.Component.renderComponent(Component.java:2073)
  at
 org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1294)
  at org.apache.wicket.Component.render(Component.java:1931)
 

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Re: [Wicket-user] Unable to find the markup for the component

2007-06-25 Thread Jonathan Locke



oh, i see now that's 1.2.6 not 1.3... still it's about the same stack trace.


Jonathan Locke wrote:
 
 
 ah.  i think maybe it's not just me:
 
 https://issues.apache.org/jira/browse/WICKET-592
 
 
 Jonathan Locke wrote:
 
 i'm getting the exception below.
 
 have there been any recent changes to markup finding or is this probably
 my own issue?
 
 thanks,
 
 jon
 
 --
 
 WicketMessage: Unable to find the markup for the component. That may be
 due to transparent containers or components implementing
 IComponentResolver: [MarkupContainer [Component id = 0, page =
 com.foo.MyPage, path = 2:myArea:mylist:0.ListItem, isVisible = true,
 isVersioned = false]]
 
 Root cause:
 
 org.apache.wicket.WicketRuntimeException: Unable to find the markup for
 the component. That may be due to transparent containers or components
 implementing IComponentResolver: [MarkupContainer [Component id = 0, page
 = com.foo.MyPage, path = 2:myArea:mylist:0.ListItem, isVisible = true,
 isVersioned = false]]
  at
 org.apache.wicket.MarkupFragmentFinder.find(MarkupFragmentFinder.java:111)
  at
 org.apache.wicket.Component.getMarkupAttributes(Component.java:1176)
  at org.apache.wicket.Component.getMarkupId(Component.java:1211)
  at org.apache.wicket.Component.onComponentTag(Component.java:3198)
  at org.apache.wicket.Component.renderComponent(Component.java:2073)
  at
 org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1294)
  at org.apache.wicket.Component.render(Component.java:1931)
 
 
 

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Re: [Wicket-user] Re-using page's look and feel

2007-06-25 Thread Jonathan Locke


just use markup inheritance directly. your base page class can have
components and markup that are inherited by all subclasses:

http://wicket.sourceforge.net/ExampleMarkupInheritance.html
http://www.javalobby.org/java/forums/t69357.html


slava.imeshev wrote:
 
 Hello everyone,
 
 We are currently helping a client with establishing web application 
 development. We are considering several variants and right now we are 
 looking at Wicket. I have a couple of questions. I'll really appreciate 
 your feedback.
 
 We want to create a base page that other pages would inherit. This page 
 would provide a unified look and feel. It would contain a header 
 navigation and a bread cumb on top, a navigation pane on the left and the 
 main content panel on the righ. The content of most of those items is 
 going to be dynamic. As an example, selecting Actions on the top nav 
 menu bar would show Actions page with its own set of commands on the 
 left nav pane.
 
 The question is, what components are the best to serve as containers for 
 dymanic content? Initially (and naturally) I thought that that would be 
 Panel, but apprettly it required ID-ing all the content in the markup 
 which doesn't fit the requirement for dynamic content.
 
 Regards,
 
 Slava Imeshev
 
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[Wicket-user] cannot add CSS to web page?

2007-06-23 Thread Jonathan Locke


my code which does this:

add(HeaderContributor.forCss(CSS));

now throws the following exception.  my web page needs to contribute CSS to
the header.  i'm wondering, why can't i do it this way anymore (it seems
like WebPage is a component like any other and my code did work fine before
this exception)? and what's the best alternative? thanks!

Caused by: org.apache.wicket.WicketRuntimeException: You can not
attach behaviors onto WebPages. Web pages do require a markup file but no
specific tag to attach the page to. This is why behaviors such as
HeaderContributor for example don't work if attached to a WebPage. Please
attach the behavior to any other of your components.




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Re: [Wicket-user] [Fwd: Re: html wicket:id=html CSS]

2007-06-23 Thread Jonathan Locke



not anymore.


Matej Knopp-2 wrote:
 
 Err, I believe that you can do add(HeaderContributor.forCss(...)) in
 page constructor.
 
 -Matej
 
 On 6/23/07, Juergen Donnerstag [EMAIL PROTECTED] wrote:
 Jan,

 the problem is that though you can attach attribute modifier (that is
 what HeaderContributor is as well) to a Page (or WebPage), it'll not
 work. WebPage doesn't have a tag. Since there is no tag, the attribute
 modifier are not invoked, hence the nothing gets added to the header
 section.

 Solution: you simply must attach HeaderContributor.forCss to any other
 of your components (e.g. html in your code)

 In order to prevent such errors, Wicket should detect (if not prevent)
 that attribute modifiers are added to WebPage. I've no idea right now
 how to make it a compile error, but we certainly can make it a runtime
 exception.

 Juergen

 On 6/22/07, Jan Kriesten [EMAIL PROTECTED] wrote:
 
  copy to the list, as sourceforge doesn't allow zip-attachments atm.
 
 
   Original Message 
  Subject: Re: [Wicket-user] html wicket:id=html  CSS
  Date: Fri, 22 Jun 2007 08:53:23 +0200
  From: Jan Kriesten [EMAIL PROTECTED]
 
 
  Hi Juergen,
 
   I'll try my best to find some spare time to do it. Hopefully over the
 weekend.
 
  much appreciated, thank you! :-)
 
  I attached a zip-file containing the example.
 
  Best regards, --- Jan.
 
 
 
 
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Re: [Wicket-user] another missing stack trace

2007-06-21 Thread Jonathan Locke



yeah, this issue was caused by multithreaded output being intervleaved.

i'm still not happy with processing exception strings though.  i'd prefer
we did some kind of folding of exceptions using javascript on the wicket
exception page and not alter the exception at all.  but that can wait until
next wicket version if at all.


Johan Compagner wrote:
 
 i dont think so because you do get Caused by?
 We don't print caused by,  that is the thing we change about the input.
 
 what do you exactly see? so whats in that [...] space you have in the
 email?
 
 johan
 
 
 On 6/20/07, Jonathan Locke [EMAIL PROTECTED] wrote:



 could this be caused by this thread (which we never quite did finish)?

 http://www.nabble.com/abbreviated-stack-traces-tf3837742.html#a10899418


 Jonathan Locke wrote:
 
  i just got another missing stack trace problem:
 
  [...]
  Caused by: java.lang.NullPointerException
 
  then no stack trace for the NPE.  eelco earlier asserted that my
 logging
  config must be wrong while johan said we must have a problem.  the only
  odd bit of configuration in our log4j file is this pattern:
 
  log4j.appender.Stdout.layout.conversionPattern=[%d{HH:mm:ss}] %-5p -
  %-26.26c{1} - %m\n
 
  could that be the problem somehow?  cause if not, i think we have a
 pretty
  serious logging problem that needs some attention.
 
 
 

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[Wicket-user] another missing stack trace

2007-06-20 Thread Jonathan Locke


i just got another missing stack trace problem:

[...]
Caused by: java.lang.NullPointerException

then no stack trace for the NPE.  eelco earlier asserted that my logging
config must be wrong while johan said we must have a problem.  the only odd
bit of configuration in our log4j file is this pattern:

log4j.appender.Stdout.layout.conversionPattern=[%d{HH:mm:ss}] %-5p -
%-26.26c{1} - %m\n

could that be the problem somehow?  cause if not, i think we have a pretty
serious logging problem that needs some attention.


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Re: [Wicket-user] another missing stack trace

2007-06-20 Thread Jonathan Locke



could this be caused by this thread (which we never quite did finish)?

http://www.nabble.com/abbreviated-stack-traces-tf3837742.html#a10899418


Jonathan Locke wrote:
 
 i just got another missing stack trace problem:
 
 [...]
 Caused by: java.lang.NullPointerException
 
 then no stack trace for the NPE.  eelco earlier asserted that my logging
 config must be wrong while johan said we must have a problem.  the only
 odd bit of configuration in our log4j file is this pattern:
 
 log4j.appender.Stdout.layout.conversionPattern=[%d{HH:mm:ss}] %-5p -
 %-26.26c{1} - %m\n
 
 could that be the problem somehow?  cause if not, i think we have a pretty
 serious logging problem that needs some attention.
 
 
 

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Re: [Wicket-user] Wicket MADE the grade

2007-06-20 Thread Jonathan Locke



very interesting.  but i don't agree with the spreadsheet that wicket is not
good
for million clicks per minute sites.  with a good back-end architecture
and the
right tuning, wicket ought to be able to sustain that kind of load as well
as
any other web framework.  the big difference is that in wicket you aren't
stuck
with a non-existent or poor man's component model where you manage all your 
state by hand just so you can optimize a few hot pages. you can do real OO 
programming with all the great productivity you get from writing real
components 
with very few optimizations across probably 95% of your site and then roll
up your 
sleeves /after looking at a profiler/ to tune the other 5% of your site
(probably the 
home page and a handful of common destinations).


Francisco Diaz Trepat - gmail wrote:
 
 Yes, thanks. We evaluated the following frameworks:
 
 Struts-2 (reviewed by me)
 SpringMVC (reviewed by a coworker)
 JFS (reviewed by a coworker)
 Click (reviewed by a coworker)
 Wicket (reviewed by a cowerker and then by me in a second chance kind of
 deal)
 
 Other-ones (Tapestry, Webworks, etc) where discarded in a very overview
 like
 process.
 
 JFS was the first to go. Very complex if no netbeans and taglibs hell,
 etc.
 
 SpringMVC had a huge acceptance in the community although after reviewing
 it
 and experience al xml complexity it got to the point we question the
 community itself.
 
 Similiar with Struts2 although we saw an important reduction of
 configuration. But it was something else (webworx 2) trying to do Struts I
 guess. Taglibs were there and we all agreed on their uglyness and stupid
 concept. Lets do HTML + TAGLIBS + JAVA CODE but lets not put JSP enbeded
 code on the JSP file. Nonesence!!!
 
 One aspect was the some of us came to love seaside (web-framework for
 squeak/smalltalk) and so we came across Click and the second chance for
 Wicket.
 
 Wicket was originally rejected because one of my coworkers who was in
 charge
 of building the demo sample, downloaded the Kick-Start kit (I don't
 remember
 the name, maybe quick-start or something of the sort). He had some trouble
 building it, he then tried to copy/paste some code from the web, and in my
 opinion gave zero interest in anything. He just complaint about it and
 then
 it was dropped.
 
 As I was working with Struts-2 and bothering in everyday basis our project
 leader so he would consider seaside I read nice reviews about wicket,
 pluss
 ask my brother who I usually trust and told me only good things about it.
 
 So because of the lack of evidence or better put, because of the not so
 deep explanation of why was wicket dumped, I kind of thought that a very
 common thing had occured. I don't give a crap, let me keep googling
 arround.
 
 Thats when I decided to speak with our PM and ask him if I could give it a
 try, a left Struts-2 (thanks god) and started with wicket. Because I am a
 lazy bastard I turn to the list to answer me some preatty dumb questions
 so
 I could get a WicketDemo working.
 
 It was an awsome ride, thanks again.
 
 I attached a Comparison chart of Struts-2 Click and Wicket, that we
 created.
 It is nothing fancy nor it is so serious. But I'll attached anyway.
 
 f(t)
 
 PS: I am currently verry busy, but I expect to get some time near agust so
 I
 can start contributing. I am currently on three other projects but it
 looks
 one of those is going to finish.
 
 
 
 On 6/20/07, craigdd [EMAIL PROTECTED] wrote:


 Great news Francisco,

 So give us the dirt, what made your company ultimately go with wicket?
 Which other frameworks where you considering.

 -Craig


 Francisco Diaz Trepat - gmail wrote:
 
  Hi guys, from a discarded framework to the choice in hand. Wicket was
  chosen
  by my company to start a migration project of its products.
 
  Is there a way to get latest 1.3 beta2 with java 1.5?
 
  to get started... ;-)
 
  Thanks to ALL of you for all your help.
 
 
  ELCO... THE BOOK MAN. COME ON!!!
 
  jejejeje
 
  Well great news for me because wicket kicks ass!!!
 
  f(t)
 
 
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Re: [Wicket-user] [announce] Apache Wicket

2007-06-20 Thread Jonathan Locke



congratulations to everyone!  i want to thank the whole team for pushing
wicket to this next big stage of growth!  wow!  we did it!


Martijn Dashorst wrote:
 
 We have Graduation! Apache Wicket is established as a top level
 project within the Apache Software Foundation.
 
From Greg Stein:
 
    Original Message 
   Subject: Apache Board Meeting, June 20, 2007 (new officers!)
   Date: Wed, 20 Jun 2007 12:45:06 -0700
   From: Greg Stein
   Reply-To: members@
   To: members@
 
   Hi all,
 
   Today, the newly-elected Board met for the first time. After we got
   done with our regular series of project reviews and other reports, we
   elected a new slate of executive officers. I'm happy to present that
   list:
 
Jim Jagielski, Chairman
Justin Erenkrantz, President
J Aaron Farr, Treasurer
Sam Ruby, Exec VP and Secretary
 
   Welcome guys to your new offices!
 
   We also established new three projects:
 
   * Apache Quetzalcoatl: this springs mod_python and related bits out of
   the HTTPD project into its own TLP. Gregory Trubetskoy is its Chair.
 
   * Apache Wicket: this is a light webapp framework for Java, graduating
   from the Incubator into its own TLP. Martijn Dashorst is the new
   Chair.
 
   * Apache Commons: this is the venerable Apache Jakarta Commons, now
   spun out into its own TLP, with Torsten Curdt as its Chair.
 
   Finally, we swapped a couple PMC Chairs:
 
   * Will Glass-Hussin replaces Henning Schmiedehausen as the Velocity 
 Chair
   * David Sean Taylor replaces Santiago Gala as the Portals Chair
 
   That's it for this month. Please feel free to forward this to any
   public/private forum as you see fit. If you have any questions, then
   please don't hesitate to ask myself or any other Director or officer.
 
   Cheers,
   -g
 
 We would like to congratulate all Wicket community members with this
 remarkable feat, we couldn't have done this without you!
 
 Furthermore, I like to thank the Board of the Apache Software
 Foundation for the trust they invested in us. We will not disappoint!
 
 We would like to thank Wicket's mentors:
 
 * Alex Karasulu (whose birthday coincidentally is today… what a better
 gift could you receive). Thanks for bringing us on board, and a Happy
 Birthday!!!
 
 * Upayavira, who made the transition even run smoother than thought
 possible. Thanks for guiding us and I hope you'll stay for a long time
 with our project!
 
 * Bertrand Delacretaz, thank you for your help, votes and advise. We
 will miss your involvement, but will certainly see you in the future!
 
 * Sylvain Wallez, also big thanks for helping and guiding us. I hope
 Wicket is still working within Joost
 
 Finally, congratulations to the new officers, PMC Chairs and the other
 two new projects: Apache Quetzalcoatl and Apache Commons! Welcome to
 the club!
 
 !!! Champagne !!!
 
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Re: [Wicket-user] inspector causes page expired

2007-06-19 Thread Jonathan Locke



ah this is some side effect of using AccessStackPageMap in the session
inspection process...


Jonathan Locke wrote:
 
 i added an enhancement request for next wicket version to support the
 inspector better.  the problem i'm having with it right now is that after
 visiting the inspectorpage, every request to the web app results in a page
 expired exception. the app is basically dead. has anyone seen this type of
 behavior before (in the inspector or elsewhere)? any ideas on what this
 might be?  thanks!
 
jonathan
 
 
 

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Re: [Wicket-user] how busy a site is wicket known to support?

2007-06-19 Thread Jonathan Locke



with decent specs on your web nodes you can generally
expect to get better performance than that... unless
you're limited by non-wicket back-end bottlenecks like 
db access.


Scott Swank wrote:
 
 I have a quick question about server load, in particular I want to
 determine what sort of volume existing applications support.
 
 We spread our load across 5 JBoss servers and need to support 200
 requests/second (40/second per server).  Are other Wicket applications
 handling this volume?
 
 Thank you,
 Scott
 
 -- 
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 reformed mathematician
 
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Re: [Wicket-user] how busy a site is wicket known to support?

2007-06-19 Thread Jonathan Locke

oh yeah, be sure you DO NOT test your wicket app's scalability with
wicket in development mode!

wicket does a ton of really inefficient things in development mode.
just for example, every single component you construct on every page
will have a complete stack trace of the caller that constructed
the component attached as metadata. needless to say, that is not
cheap (either in time or memory)!

Scott Swank wrote:

I have a quick question about server load, in particular I want to
determine what sort of volume existing applications support.

We spread our load across 5 JBoss servers and need to support 200
requests/second (40/second per server). Are other Wicket applications
handling this volume?

Thank you,
Scott

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Re: [Wicket-user] infinite loop

2007-06-18 Thread Jonathan Locke



no repro case currently.


Johan Compagner wrote:
 
 can't you debug it and break on the exception NullPointer?
 
 But i agree somehow we should log this better.
 
 On 6/18/07, Jonathan Locke [EMAIL PROTECTED] wrote:



 aha.  we might have two of these bugs, but i'm getting this trace
 now.  does
 anyone have any idea what line of code it is that is failing to print the
 stack trace for this NPE into the log?  it looks like an NPE is causing
 the
 processing step to restart over and over again.  would be a good fix to
 wicket to have it print that stack trace and not just the exception
 message.

 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - [default] - Servlet.service() for servlet default
 threw
 exception java.lang.IllegalStateException?: Request processing executed
 32767 steps, which means it is probably in an infinite loop.

 at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
 org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
 org.apache.wicket.protocol.http.WicketFilter
 ?.doGet(WicketFilter?.java:251)
 at
 org.apache.wicket.protocol.http.WicketFilter
 ?.doFilter(WicketFilter?.java:125)
 at
 org.apache.catalina.core.ApplicationFilterChain
 ?.internalDoFilter(ApplicationFilterChain?.java:202)
 at
 org.apache.catalina.core.ApplicationFilterChain
 ?.doFilter(ApplicationFilterChain?


 Al Maw wrote:
 
  I've seen this happen if you run behind a mod_proxy and fail to set up
  the ProxyPassReverse setting properly. Make sure you have
  ProxyPassReverseCookiePath, too. See the wiki for details.
 
  Al
 
  Jonathan Locke wrote:
 
  anyone have any ideas on what might cause this?  in particular can a
 user
  exception cause it or is it definitely a wicket bug?
 
  java.lang.IllegalStateException?: Request processing executed 32767
  steps,
  which means it is probably in an infinite loop.
 
  at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
  org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
  org.apache.wicket.protocol.http.WicketFilter
 ?.doGet(WicketFilter?.java:251)
  at
  org.apache.wicket.protocol.http.WicketFilter
 ?.doFilter(WicketFilter?.java:125)
  at
  org.apache.catalina.core.ApplicationFilterChain
 ?.internalDoFilter(ApplicationFilterChain?.java:202)
  at
  org.apache.catalina.core.ApplicationFilterChain
 ?.doFilter(ApplicationFilterChain?.java:173)
  at
  org.apache.catalina.core.StandardWrapperValve
 ?.invoke(StandardWrapperValve?.java:213)
  at
  org.apache.catalina.core.StandardContextValve
 ?.invoke(StandardContextValve?.java:178)
  at
  org.apache.catalina.core.StandardHostValve
 ?.invoke(StandardHostValve?.java:126)
  at
  org.apache.catalina.cluster.tcp.ReplicationValve
 ?.invoke(ReplicationValve?.java:346)
  at
  org.apache.catalina.valves.ErrorReportValve
 ?.invoke(ErrorReportValve?.java:105)
  at
  org.apache.catalina.core.StandardEngineValve
 ?.invoke(StandardEngineValve?.java:107)
  at
  org.apache.catalina.connector.CoyoteAdapter
 ?.service(CoyoteAdapter?.java:148)
  at
  org.apache.coyote.ajp.AjpAprProcessor
 ?.process(AjpAprProcessor?.java:425)
  at
  org.apache.coyote.ajp.AjpAprProtocol
 ?$AjpConnectionHandler?.process(AjpAprProtocol?.java:452)
  at
  org.apache.tomcat.util.net.AprEndpoint
 ?$Worker.run(AprEndpoint?.java:1285)
  at java.lang.Thread.run(Thread.java:619)
 
 
 
 
 
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Re: [Wicket-user] infinite loop

2007-06-18 Thread Jonathan Locke



how could it be set up incorrectly?  we got the message part of the NPE
just not the stack trace. 


Eelco Hillenius wrote:
 
 could it be this code that's not logging the whole exception?

 protected void logRuntimeException(RuntimeException e)
 {
 log.error(e.getMessage(), e);
 }
 
 That should typically print the stack trace if your logging
 configuration is set up properly.
 
 Eelco
 
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[Wicket-user] inspector causes page expired

2007-06-18 Thread Jonathan Locke


i added an enhancement request for next wicket version to support the
inspector better.  the problem i'm having with it right now is that after
visiting the inspectorpage, every request to the web app results in a page
expired exception. the app is basically dead. has anyone seen this type of
behavior before (in the inspector or elsewhere)? any ideas on what this
might be?  thanks!

   jonathan


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Re: [Wicket-user] infinite loop

2007-06-17 Thread Jonathan Locke



this is not it.  the server with the problem is not even running a proxy. 
any other ideas anyone?


Al Maw wrote:
 
 I've seen this happen if you run behind a mod_proxy and fail to set up
 the ProxyPassReverse setting properly. Make sure you have
 ProxyPassReverseCookiePath, too. See the wiki for details.
 
 Al
 
 Jonathan Locke wrote:
 
 anyone have any ideas on what might cause this?  in particular can a user
 exception cause it or is it definitely a wicket bug?
 
 java.lang.IllegalStateException?: Request processing executed 32767
 steps,
 which means it is probably in an infinite loop.
 
 at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
 org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
 org.apache.wicket.protocol.http.WicketFilter?.doGet(WicketFilter?.java:251)
 at
 org.apache.wicket.protocol.http.WicketFilter?.doFilter(WicketFilter?.java:125)
 at
 org.apache.catalina.core.ApplicationFilterChain?.internalDoFilter(ApplicationFilterChain?.java:202)
 at
 org.apache.catalina.core.ApplicationFilterChain?.doFilter(ApplicationFilterChain?.java:173)
 at
 org.apache.catalina.core.StandardWrapperValve?.invoke(StandardWrapperValve?.java:213)
 at
 org.apache.catalina.core.StandardContextValve?.invoke(StandardContextValve?.java:178)
 at
 org.apache.catalina.core.StandardHostValve?.invoke(StandardHostValve?.java:126)
 at
 org.apache.catalina.cluster.tcp.ReplicationValve?.invoke(ReplicationValve?.java:346)
 at
 org.apache.catalina.valves.ErrorReportValve?.invoke(ErrorReportValve?.java:105)
 at
 org.apache.catalina.core.StandardEngineValve?.invoke(StandardEngineValve?.java:107)
 at
 org.apache.catalina.connector.CoyoteAdapter?.service(CoyoteAdapter?.java:148)
 at
 org.apache.coyote.ajp.AjpAprProcessor?.process(AjpAprProcessor?.java:425)
 at
 org.apache.coyote.ajp.AjpAprProtocol?$AjpConnectionHandler?.process(AjpAprProtocol?.java:452)
 at
 org.apache.tomcat.util.net.AprEndpoint?$Worker.run(AprEndpoint?.java:1285)
 at java.lang.Thread.run(Thread.java:619)
 
 
 
 
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Re: [Wicket-user] infinite loop

2007-06-17 Thread Jonathan Locke



aha.  we might have two of these bugs, but i'm getting this trace now.  does
anyone have any idea what line of code it is that is failing to print the
stack trace for this NPE into the log?  it looks like an NPE is causing the
processing step to restart over and over again.  would be a good fix to
wicket to have it print that stack trace and not just the exception message.

[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
[10:19:01] ERROR - [default] - Servlet.service() for servlet default threw
exception java.lang.IllegalStateException?: Request processing executed
32767 steps, which means it is probably in an infinite loop.

at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
org.apache.wicket.protocol.http.WicketFilter?.doGet(WicketFilter?.java:251)
at
org.apache.wicket.protocol.http.WicketFilter?.doFilter(WicketFilter?.java:125)
at
org.apache.catalina.core.ApplicationFilterChain?.internalDoFilter(ApplicationFilterChain?.java:202)
at
org.apache.catalina.core.ApplicationFilterChain?.doFilter(ApplicationFilterChain?


Al Maw wrote:
 
 I've seen this happen if you run behind a mod_proxy and fail to set up
 the ProxyPassReverse setting properly. Make sure you have
 ProxyPassReverseCookiePath, too. See the wiki for details.
 
 Al
 
 Jonathan Locke wrote:
 
 anyone have any ideas on what might cause this?  in particular can a user
 exception cause it or is it definitely a wicket bug?
 
 java.lang.IllegalStateException?: Request processing executed 32767
 steps,
 which means it is probably in an infinite loop.
 
 at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
 org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
 org.apache.wicket.protocol.http.WicketFilter?.doGet(WicketFilter?.java:251)
 at
 org.apache.wicket.protocol.http.WicketFilter?.doFilter(WicketFilter?.java:125)
 at
 org.apache.catalina.core.ApplicationFilterChain?.internalDoFilter(ApplicationFilterChain?.java:202)
 at
 org.apache.catalina.core.ApplicationFilterChain?.doFilter(ApplicationFilterChain?.java:173)
 at
 org.apache.catalina.core.StandardWrapperValve?.invoke(StandardWrapperValve?.java:213)
 at
 org.apache.catalina.core.StandardContextValve?.invoke(StandardContextValve?.java:178)
 at
 org.apache.catalina.core.StandardHostValve?.invoke(StandardHostValve?.java:126)
 at
 org.apache.catalina.cluster.tcp.ReplicationValve?.invoke(ReplicationValve?.java:346)
 at
 org.apache.catalina.valves.ErrorReportValve?.invoke(ErrorReportValve?.java:105)
 at
 org.apache.catalina.core.StandardEngineValve?.invoke(StandardEngineValve?.java:107)
 at
 org.apache.catalina.connector.CoyoteAdapter?.service(CoyoteAdapter?.java:148)
 at
 org.apache.coyote.ajp.AjpAprProcessor?.process(AjpAprProcessor?.java:425)
 at
 org.apache.coyote.ajp.AjpAprProtocol?$AjpConnectionHandler?.process(AjpAprProtocol?.java:452)
 at
 org.apache.tomcat.util.net.AprEndpoint?$Worker.run(AprEndpoint?.java:1285)
 at java.lang.Thread.run(Thread.java:619)
 
 
 
 
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Re: [Wicket-user] infinite loop

2007-06-17 Thread Jonathan Locke



could it be this code that's not logging the whole exception?

protected void logRuntimeException(RuntimeException e)
{
log.error(e.getMessage(), e);
}


Jonathan Locke wrote:
 
 
 aha.  we might have two of these bugs, but i'm getting this trace now. 
 does anyone have any idea what line of code it is that is failing to print
 the stack trace for this NPE into the log?  it looks like an NPE is
 causing the processing step to restart over and over again.  would be a
 good fix to wicket to have it print that stack trace and not just the
 exception message.
 
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - RequestCycle? - java.lang.NullPointerException?
 [10:19:01] ERROR - [default] - Servlet.service() for servlet default threw
 exception java.lang.IllegalStateException?: Request processing executed
 32767 steps, which means it is probably in an infinite loop.
 
 at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
 org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
 org.apache.wicket.protocol.http.WicketFilter?.doGet(WicketFilter?.java:251)
 at
 org.apache.wicket.protocol.http.WicketFilter?.doFilter(WicketFilter?.java:125)
 at
 org.apache.catalina.core.ApplicationFilterChain?.internalDoFilter(ApplicationFilterChain?.java:202)
 at
 org.apache.catalina.core.ApplicationFilterChain?.doFilter(ApplicationFilterChain?
 
 
 Al Maw wrote:
 
 I've seen this happen if you run behind a mod_proxy and fail to set up
 the ProxyPassReverse setting properly. Make sure you have
 ProxyPassReverseCookiePath, too. See the wiki for details.
 
 Al
 
 Jonathan Locke wrote:
 
 anyone have any ideas on what might cause this?  in particular can a
 user
 exception cause it or is it definitely a wicket bug?
 
 java.lang.IllegalStateException?: Request processing executed 32767
 steps,
 which means it is probably in an infinite loop.
 
 at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
 org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
 org.apache.wicket.protocol.http.WicketFilter?.doGet(WicketFilter?.java:251)
 at
 org.apache.wicket.protocol.http.WicketFilter?.doFilter(WicketFilter?.java:125)
 at
 org.apache.catalina.core.ApplicationFilterChain?.internalDoFilter(ApplicationFilterChain?.java:202)
 at
 org.apache.catalina.core.ApplicationFilterChain?.doFilter(ApplicationFilterChain?.java:173)
 at
 org.apache.catalina.core.StandardWrapperValve?.invoke(StandardWrapperValve?.java:213)
 at
 org.apache.catalina.core.StandardContextValve?.invoke(StandardContextValve?.java:178)
 at
 org.apache.catalina.core.StandardHostValve?.invoke(StandardHostValve?.java:126)
 at
 org.apache.catalina.cluster.tcp.ReplicationValve?.invoke(ReplicationValve?.java:346)
 at
 org.apache.catalina.valves.ErrorReportValve?.invoke(ErrorReportValve?.java:105)
 at
 org.apache.catalina.core.StandardEngineValve?.invoke(StandardEngineValve?.java:107)
 at
 org.apache.catalina.connector.CoyoteAdapter?.service(CoyoteAdapter?.java:148)
 at
 org.apache.coyote.ajp.AjpAprProcessor?.process(AjpAprProcessor?.java:425)
 at
 org.apache.coyote.ajp.AjpAprProtocol?$AjpConnectionHandler?.process(AjpAprProtocol?.java:452)
 at
 org.apache.tomcat.util.net.AprEndpoint?$Worker.run(AprEndpoint?.java:1285)
 at java.lang.Thread.run(Thread.java:619)
 
 
 
 
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[Wicket-user] infinite loop

2007-06-16 Thread Jonathan Locke



anyone have any ideas on what might cause this?  in particular can a user
exception cause it or is it definitely a wicket bug?

java.lang.IllegalStateException?: Request processing executed 32767 steps,
which means it is probably in an infinite loop.

at org.apache.wicket.RequestCycle?.steps(RequestCycle?.java:1187) at
org.apache.wicket.RequestCycle?.request(RequestCycle?.java:510) at
org.apache.wicket.protocol.http.WicketFilter?.doGet(WicketFilter?.java:251)
at
org.apache.wicket.protocol.http.WicketFilter?.doFilter(WicketFilter?.java:125)
at
org.apache.catalina.core.ApplicationFilterChain?.internalDoFilter(ApplicationFilterChain?.java:202)
at
org.apache.catalina.core.ApplicationFilterChain?.doFilter(ApplicationFilterChain?.java:173)
at
org.apache.catalina.core.StandardWrapperValve?.invoke(StandardWrapperValve?.java:213)
at
org.apache.catalina.core.StandardContextValve?.invoke(StandardContextValve?.java:178)
at
org.apache.catalina.core.StandardHostValve?.invoke(StandardHostValve?.java:126)
at
org.apache.catalina.cluster.tcp.ReplicationValve?.invoke(ReplicationValve?.java:346)
at
org.apache.catalina.valves.ErrorReportValve?.invoke(ErrorReportValve?.java:105)
at
org.apache.catalina.core.StandardEngineValve?.invoke(StandardEngineValve?.java:107)
at
org.apache.catalina.connector.CoyoteAdapter?.service(CoyoteAdapter?.java:148)
at org.apache.coyote.ajp.AjpAprProcessor?.process(AjpAprProcessor?.java:425)
at
org.apache.coyote.ajp.AjpAprProtocol?$AjpConnectionHandler?.process(AjpAprProtocol?.java:452)
at
org.apache.tomcat.util.net.AprEndpoint?$Worker.run(AprEndpoint?.java:1285)
at java.lang.Thread.run(Thread.java:619)


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Re: [Wicket-user] Evaluating Wicket

2007-06-13 Thread Jonathan Locke



you won't be the first.  wicket is already being used for real enterprise
class work today.  the startup i'm working for is entirely wicket based and
is backed with millions of VC dollars... and of course, we're planning for
the kind of user traffic that would cause VCs to invest millions of dollars
(millions of users).  


Patrick Angeles wrote:
 
 We're up to the prototyping phase of a new JEE application. We are looking
 at EJB3 + some UI framework. There's actually two types of UI: a complex
 admin UI with around 100 concurrent users, and several public-facing,
 CMS-driven, branded web-sites with 1000s of concurrent users. Obviously,
 we'd prefer to use the same UI framework for both, but would need to take
 performance into account.
 
 I would love to use a component based framework for the admin UI. This
 leaves us with: JSF, Tapestry, Wicket, GWT... perhaps even SWT deployed
 via Java WebStart. The SWT solution is a bit risky, as we'd have to
 contend with corporate firewalls and basically come up with some HTTP
 tunneling solution (JAX-WS?). GWT is intriguing, but not an option for the
 CMS-driven front-end. Tapestry hasn't even entered into my mindshare, but
 I'm leery based on their track record of breaking backward-compatibility.
 This leaves us with Wicket and JSF. I've played with both technologies
 (v1.2.4 of Wicket), and JSF just scares me. I've used Facelets and Seam
 with JSF. We cannot take advantage of Seam because of the tiered
 architecture of our application (separate presentation and service
 clusters).
 
 So there's Wicket. Right now, I have the following reservations with
 Wicket:
 - Dates. When will 1.3 be released? How about 1.4?
 - Documentation. There's not one coherent document for 1.3... the Wiki is
 littered with bits of wisdom, but it's hard to tell what techniques work
 with or are obsoleted by version 1.3...
 - Books. When are the books coming out?
 - CMS... as I've said, the front-end is CMS driven, and because of load,
 I'd like to keep things stateless as much as possible (altho, all bets are
 off when the user logs in). I haven't yet found a good description of how
 1.3 handles session state. I'd also like to know if I can mount
 bookmarkable pages dynamically... say if someone were to create and
 publish a new CMS page from the admin app.
 
 I like what I've seen of Wicket so far, and I would love to deploy the
 first enterprise-class application running Wicket, but I need some advice
 to get rid of the butterflies in my stomach.
 
 Regards,
 
 - P
 

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Re: [Wicket-user] Evaluating Wicket

2007-06-13 Thread Jonathan Locke



yep.  and panels can be in loops, lists, dataviews, trees, etc.
and you can easily create your own such components if you want to.
there's really no end to how much dynamic stuff you can do in wicket.


Eelco Hillenius wrote:
 
 On 6/12/07, Patrick Angeles [EMAIL PROTECTED] wrote:
 I'm not that deep into Wicket yet, but my idea was that there would be
 Java
 classes that represent various page templates and panels. The component
 tree
 could be dynamically built using metadata from a DB. So the URL would
 basically invoke a Page class which looks up an entry in the database
 corresponding to that URL. This entry will have associated CMS metadata
 that
 instructs the page on how to build its component tree.
 
 Yep, that should work. Encapsulate everything that can only be known
 at runtime in panels, and you can build your component tree completely
 dynamically.
 
 if (foo) { add(new TextFieldPanel(id); } else { add(new
 GridEditorPanel(id); } etc
 
 Eelco
 
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Re: [Wicket-user] Howto determine what objects are part of session state

2007-06-11 Thread Jonathan Locke

yeah, this would be particularly neat if it could tell you the size of each
object
in the graph using that JMX sizeof call. it's actually the non-serialized
size that
matters the most and that management call ought to be able to get a value
pretty close to correct (although if it's transitive, it might be necessary
to do
a bunch of finagling to temporarily set references to null before computing
the
size).

Eelco Hillenius wrote:

Through the use of anonymous inner classes it is easy for objects to
become
part of session state unintentionally. Does anyone know of a tool (or io
util package) that would help debuging these issues? Specifically it
would
be great to be able to print the heiarchy/containment structure of a
serialized object so that at any level deep you can see the path that
lead
to that object becoming serialized.

Eelco created something very similar to this to make serialization error
messages more friendly, perhaps it can be modified to help with session
debuging?

Funny you bring that up, as I thought about coding such a class a
couple of days ago. Unfortunately, I don't have any spare time soon,
so I can't do this. But indeed, something similar to
org.apache.wicket.util.io.SerializableChecker should do the trick.

It would be great if someone could pick this up. Something you could
do Ryan? Mind opening up a JIRA issue for it?

Cheers,

Eelco

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Re: [Wicket-user] Want return key to click button in autocomplete behavior

2007-06-06 Thread Jonathan Locke

aha! a simple solution. thanks.

Johan Compagner wrote:

cant you add a key listener to the textfield and if you see an enter
you call button.onclick() your self?

On 6/5/07, Jonathan Locke [EMAIL PROTECTED] wrote:

I've got an autocomplete text field nested inside a larger form. When
you
click add next to the field, it adds what you've completed to a list
that
is submitted when the overall form is submitted. Would like to figure
out
how to make pressing the return key in the field (when there is no
completion dropdown stuff going on) act like pushing the add button
(which
is an AjaxSubmitButton). Any ideas on how to approach this in general?
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Re: [Wicket-user] wicket did not make the grade.

2007-06-06 Thread Jonathan Locke



This was almost exactly my own reaction to the original assertion
that this team has very strong OOP skills.  The criticism cited sounded
a lot more to me like reflex than any kind of thinking.


James McLaughlin-3 wrote:
 
 Hi Florian,
 To be honest, you should have titled this post My team did not make
 the grade. There are many developers in the world whose skill and
 ambition rise little above cut and paste robot, and many burned out
 managers who have decided employees will never be capable of much
 else. Struts is a perfect framework choice where such conditions
 coincide. If you are in such a place right now, then for the love of
 all things holy, move on before your soul, and skills, languish. On
 the other hand, if you work for a place where the power of OOP is
 understood, and developer creativity is required and appreciated,
 Wicket will be the most natural choice.
 
 jim
 
 On 6/5/07, Florian Hehlen [EMAIL PROTECTED] wrote:

  Hi,

  The comparison was a bit skewed where I showed the richness of such
 components as a DataView(sortable and pageable) in wicket and that was
 compared with a simple static table on Struts 2.


  Johan Compagner wrote:


  Wicket if adding those low-level components was only necessary when one
  wants to add special handling, formating, validation, etc.


  and where is then the binding specified? What kind of data should be
 displayed where?
  Well how about simply binding a DataView to a the Model and assume that
 for
 all wicket:id in the html template I should find a getter method in the
 bean?

  regards,
  Florian

  PS: I agree wiith all you guys that this is not a big issue... that it's
 more a question of style/philospophy and possibly fashion.

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Re: [Wicket-user] wicket did not make the grade.

2007-06-06 Thread Jonathan Locke




Florian Hehlen-2 wrote:
 
 -It will be easier to hire someone with Struts knowledge on top of the 
 fact that we have some in-house knowledge with it.
 
translation: we don't want to think


 -Struts is the de-facto standard with a lot of 
 community/vendor/documentation support
 
translation: we don't want to think


 -Struts seems heavy on the java-code required for things that are pretty 
 simple with struts
 
translation: we don't want to think

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[Wicket-user] Want return key to click button in autocomplete behavior

2007-06-05 Thread Jonathan Locke


I've got an autocomplete text field nested inside a larger form.  When you
click add next to the field, it adds what you've completed to a list that
is submitted when the overall form is submitted.  Would like to figure out
how to make pressing the return key in the field (when there is no
completion dropdown stuff going on) act like pushing the add button (which
is an AjaxSubmitButton).  Any ideas on how to approach this in general?
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[Wicket-user] wicket:message for attributes?

2007-06-05 Thread Jonathan Locke


Is there something like wicket:message for localizing attributes like title
tooltips?  I looked on the WIKI but there wasn't anything there.

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Re: [Wicket-user] Getting sent to PageExpiredErrorPage when page is not expired

2007-06-04 Thread Jonathan Locke

when i was running into this, it turned out that we were losing the session
cookie. try checking the jsessionid cookie before and after and see if it
changes.

jayTSM wrote:

This behavior seems to be happening on non-ajax requests. The component
being submitted is a basic subclass of the wicket Form class. The
pre-processing before the submission involves setting the response page to
the current page, via the setResponsePage method on the wicket Component
class. In addition a couple of objects are saved using hibernate before
submission.

I am currently using the wicket 1.2.5 jar.

Eelco Hillenius wrote:

We've had a couple of instances where this happened for Ajax requests.
Should be fixed now though.

Can you tell us more about which version you are using and what kind
of pages/ functionality you see this with?

On 6/4/07, jayTSM [EMAIL PROTECTED] wrote:

Sporadically, I'm seeing form submissions rerouted by wicket internally
to
the pageExpiredErrorPage, when it seems the requested page is not
expired.
Does anyone have any ideas why this might be happening? These
page-expiration error cases seem to occur when the form's response page
is
set to the current page.

Thanks for the help in advance,
Jay

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Re: [Wicket-user] Exception Strategy in 1.3

2007-05-31 Thread Jonathan Locke



this sure seems familiar.  didn't we have a nice plan to address this a few
months back?


Eelco Hillenius wrote:
 
 You can return the page you want to be displayed and have full
 control. I know the API currently is non-obvious; I complained about
 this in another thread.
 
 For example, this is what I'm using for the project I'm working on:
 
 
   public Page onRuntimeException(Page page, RuntimeException e) {
 
   if (e instanceof AuthorizationException) {
   return super.onRuntimeException(page, e);
   } else if (e instanceof PageExpiredException) {
   Ts4Session session = Ts4Session.get();
   if (session.isTemporary() || session.getUserId() == 
 null) {
   // this was an actual session expiry
   log
   .info(session expired and 
 request cannot be honored, cycleId: 
   + cycleId);
   return super.onRuntimeException(page, e);
   } else {
   log.error(unable to find page for an active 
 session!);
   // hmmm, we have a logged in user, but the page 
 could not be
   // found. Fall through to display an error page 
 or exception
   // page
   }
   }
 
   if (Application.DEPLOYMENT.equals(Application.get()
   .getConfigurationType())) {
   return new ErrorPage(e, page, cycleId);
   } else {
   return new ExceptionErrorPage(e, page);
   }
   }
 
 eelco
 
 Overriding the onRuntimeException does not work because you don't have
 access
 to the page that you are directing to.  The page parameter in this method
 if
 the context from where the exception was thrown.

 -Craig



 Rüdiger_Schulz wrote:
 
  Make a subclass of WebRequestCycle, and override onRuntimeException().
  Works like a charm for me.
 
  2007/5/22, craigdd [EMAIL PROTECTED]:
 
  True the wicket session is mandatory, thanks for pointing that out.
 
  As for my question though, I'm looking for the best way to implement
 this
  strategy.  I could override the respond method in RequestCycle, but
 I'd
  have
  to rewrite the given logic, which most of it I want.  I'm wondering if
  there
  are any other hooks that I can implement that leaves the respond
 method
  alone but have the exception and internal page available.
 
  -Craig
 
 
 
  Mr Mean wrote:
  
   As far as i know the wicket session is mandatory in wicket but that
   does not mean you have to use it to store information. Other then
 that
   i see no reason why your proposed strategy should not work.
  
   Maurice
  
   On 5/22/07, craigdd [EMAIL PROTECTED] wrote:
  
   Basically what I want to do is set the internal error page to my
 own
   internal
   page, i.e. my login page, and add a message from the a resource
  bundle,
   .properties file, that includes an error code that is generated
 from
  an
   internal RuntimeException.  Another requirement is that a Session
 is
   optional, meaning that this should work with or without a Session.
  
   -Craig
  
  
   craigdd wrote:
   
What is the best way to implement your own exception strategy in
  wicket
1.3?  I want to add some added logic to my application when an
   unexcepted
exception occurs.  During this added logic I want a handle on the
  page
that is being redirected to, ie the internal error page.
   
Thanks
Craig
   
  
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[Wicket-user] modalwindow open fails

2007-05-30 Thread Jonathan Locke


this may be my problem, but i'm having a bit of trouble with modal windows
that won't open and wondering if there are any known gotchas or words of
wisdom for what to look at...

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Re: [Wicket-user] Best Practices for accessing/repainting sibling/cousin components?

2007-05-30 Thread Jonathan Locke

It shouldn't be hard to write the method you're talking about. To find all
the components using the same model as a given component, just walk the
component hierarchy using visitChildren() and add any component which
returns true for sameInnermostModel(component).

There is a more general case of this problem though where one area of a web
page may need to be updated because some completely unrelated area changed.
This I'm handling by hand right now, but I was asking a day or two ago if
there was a way to add a component to every ajax request (Eelco answered
that you can do this by implementing a request processor, I think). It
seems to be pretty common in an AJAX request to want a global feedback
component to update. Maybe we could have a poor-man's version of this where
if you override some boolean method, your component will get
auto-ajax-updated on every AJAX request. For many problems, this would be
convenient because it's easier to just update the thing every time than to
think about all the places it might need to be updated.

dukejansen wrote:

I have some state which backs two panels, Panel A and Panel B, that may be
included as part of other panels. Ultimately they are both on the same
page, and their backing state is shared via the model class that backs
both of them. Panel A has an Ajax event handler which modifies the backing
model state, after which I want to force Panel A and Panel B to repaint.

I've dealt with this in a few different ways so far, and they all bother
me:

1. Walk up the containership tree and back down again until I find the
panel with a known ID or which implements a specific marker interface,
finding it that way. (Or do a full DFS of the tree to be thorough.)

2. Assume how my Panel is included and how the other Panel are included,
and explicitly walk up and back down the containership tree. This is
fragile because if I decide to rework panel containership, the method
could fail.

Is there some better way of doing this that I'm missing? A best practice
for reaching out to siblings and cousins?

Or something more fundamental to trigger refreshes of all componets backed
by that model? Seems like a common use case. A component updates some
state as part of ajax event, then wants to use ajax to repaint any other
components backed by that state.

Interested to hear how others have solved this problem.

-Jason

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Re: [Wicket-user] Best Practices for accessing/repainting sibling/cousin components?

2007-05-30 Thread Jonathan Locke

Maybe another way to auto-ajax-update a component would be to have it do
that whenever its model changes. There are a lot of caveats with model
change notifications, but that seems to be a pretty clean idea if the rules
for model changes were respected. Might make a good RFE for next Wicket
version.

Jonathan Locke wrote:

It shouldn't be hard to write the method you're talking about. To find
all the components using the same model as a given component, just walk
the component hierarchy using visitChildren() and add any component which
returns true for sameInnermostModel(component).

There is a more general case of this problem though where one area of a
web page may need to be updated because some completely unrelated area
changed. This I'm handling by hand right now, but I was asking a day or
two ago if there was a way to add a component to every ajax request (Eelco
answered that you can do this by implementing a request processor, I
think). It seems to be pretty common in an AJAX request to want a global
feedback component to update. Maybe we could have a poor-man's version of
this where if you override some boolean method, your component will get
auto-ajax-updated on every AJAX request. For many problems, this would be
convenient because it's easier to just update the thing every time than to
think about all the places it might need to be updated.

dukejansen wrote:

I have some state which backs two panels, Panel A and Panel B, that may
be included as part of other panels. Ultimately they are both on the same
page, and their backing state is shared via the model class that backs
both of them. Panel A has an Ajax event handler which modifies the
backing model state, after which I want to force Panel A and Panel B to
repaint.

I've dealt with this in a few different ways so far, and they all bother
me:

Is there some better way of doing this that I'm missing? A best practice
for reaching out to siblings and cousins?

Or something more fundamental to trigger refreshes of all componets
backed by that model? Seems like a common use case. A component updates
some state as part of ajax event, then wants to use ajax to repaint any
other components backed by that state.

Interested to hear how others have solved this problem.

-Jason

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Re: [Wicket-user] modalwindow open fails

2007-05-30 Thread Jonathan Locke



BTW, I know that the AJAX request to open the window is occurring because I
get this 

[15:31:00] INFO  - RequestLogger  -
time=11,event=Interface[target:SendToFriendModalWindow$1(xyz:sendToFriendLink),
page: web.pages.index.IndexPage(6), interface:
IBehaviorListener.onRequest],[EMAIL PROTECTED]
markupIdToComponent [{sendToFriendModalWindow6=[MarkupContainer [Component
id = sendToFriendModalWindow, page = web.pages.index.IndexPage, path =
0:sendToFriendModalWindow.SendToFriendModalWindow, isVisible = true,
isVersioned = false]]}], prependJavascript [[]], appendJavascript [[var
element = document.getElementById(content41);
var settings = new Object();
settings.minWidth=200;
settings.minHeight=200;
settings.className=w_blue;
settings.width=600;
settings.height=400;
settings.resizable=true;
settings.element = element;
settings.mask=semi-transparent;
settings.onCloseButton = function() { var
wcall=wicketAjaxGet('?wicket:interface=:0:sendToFriendModalWindow::IBehaviorListener:0:',
function() { }.bind(this), function() { }.bind(this));return !wcall;};
Wicket.Window.create(settings).show();
]],sessionid=30s4083ks3dhs,sessionsize=96668,sessionstart=Wed May 30
15:13:04 PDT
2007,requests=46,totaltime=1848,activerequests=2,maxmem=532M,total=532M,used=29M



Jonathan Locke wrote:
 
 this may be my problem, but i'm having a bit of trouble with modal windows
 that won't open and wondering if there are any known gotchas or words of
 wisdom for what to look at...
 
 

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Re: [Wicket-user] modalwindow open fails

2007-05-30 Thread Jonathan Locke



ugh.  looks like this was another session issue (different thing though).

one thing that was helpful in tracking this down was turning on the AJAX
debugging window.


Jonathan Locke wrote:
 
 this may be my problem, but i'm having a bit of trouble with modal windows
 that won't open and wondering if there are any known gotchas or words of
 wisdom for what to look at...
 
 

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[Wicket-user] Want to add a component to every AjaxRequestTarget

2007-05-28 Thread Jonathan Locke


Is there a way to hook every AJAX request and add a component (that's on
every page) to the request target?  It seems like there might be because of
the way request targets work, but I don't have any idea what the details of
that might look like...
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Re: [Wicket-user] Want to add a component to every AjaxRequestTarget

2007-05-28 Thread Jonathan Locke

ah yeah, that's what i was vaguely thinking was the way but not quite
remembering. thanks!

Eelco Hillenius wrote:

One way is to create a custom request cycle processor (extend
WebRequestCycleProcessor) and e.g. override processEvents and check
what the current request target is (do something when it is an
AjaxRequestTarget).

Eelco

On 5/28/07, Jonathan Locke [EMAIL PROTECTED] wrote:

Is there a way to hook every AJAX request and add a component (that's on
every page) to the request target? It seems like there might be because
of
the way request targets work, but I don't have any idea what the details
of
that might look like...
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[Wicket-user] Magic to replace ModalWindow images

2007-05-24 Thread Jonathan Locke


Matej, we were talking on ##wicket and you were about to tell me what the
magic is to replace ModalWindow images with something my designer cooks up
(pixel accurate replacements for existing images) without modifying Wicket. 
What was that magic?  (Thought I'd post here since others might benefit from
the answer to this question... maybe someone can post the reply into our FAQ
too).  Thanks!
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Re: [Wicket-user] Magic to replace ModalWindow images

2007-05-24 Thread Jonathan Locke



thanks matej!


Matej Knopp-2 wrote:
 
 Okay, so if I understand correctly you want to replace modal window
 images. It is possible, but if you don't want to touch other css
 things, you need to make sure that the new image match the exact
 dimensions of the old images.
 
 First little introduction about modal window images. Modal window
 images are optimized for fast download time, meaning that for the
 entire modal window only two images are loaded. This is done by
 stuffing multiple elements into a single image. As a result of this,
 it's not possible to use filter hack for alpha blending in IE6.
 Therefore there have to be two versions of the images - one with alpha
 blending (shadows) - for sane browsers, and one without alpha blending
 - for IE6. While this means more work for designer, I still think it's
 worth it as normally (without the grouping) the modal window would
 require to load up to ten different images.
 
 So. If you want alpha blending (on supported browsers - other then
 IE6), you'll have to have four images. Two with alpha blending and two
 without. To use these images, you'll have to define your own
 stylesheet and put your images in the same folder. The stylesheet
 should look like this:
 
 div.wicket-modal div.my-window-style div.w_left,
 div.wicket-modal div.my-window-style div.w_right {
   background-image: url('my-window-style-2-alpha.png');
   _background-image: url('my-window-style-2-ie.png');
 }
 
 
 div.wicket-modal div.my-window-style div.w_top,
 div.wicket-modal div.my-window-style div.w_bottom,
 div.wicket-modal div.my-window-style div.w_topLeft,
 div.wicket-modal div.my-window-style div.w_topRight,
 div.wicket-modal div.my-window-style div.w_bottomRight,
 div.wicket-modal div.my-window-style div.w_bottomLeft,
 div.wicket-modal div.my-window-style a.w_close {
   background-image: url('my-window-style-1-alpha.png');
   _background-image: url('my-window-style-1-ie.png');
 }
 
 To make modal window use this style you call
 window.setCssClassName(my-window-style).
 
 Unless I forgot something, this should give you the possibility to
 replace default modal window images.
 
 -Matej
 
 On 5/24/07, Jonathan Locke [EMAIL PROTECTED] wrote:

 Matej, we were talking on ##wicket and you were about to tell me what the
 magic is to replace ModalWindow images with something my designer cooks
 up
 (pixel accurate replacements for existing images) without modifying
 Wicket.
 What was that magic?  (Thought I'd post here since others might benefit
 from
 the answer to this question... maybe someone can post the reply into our
 FAQ
 too).  Thanks!
 --
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Re: [Wicket-user] how to customize Modal Window`s appearance

2007-05-23 Thread Jonathan Locke

yeah, i'd be interested in this result too.

Scott Swank wrote:

Agreed. We've gone the complicated CSS magic route and it is a bit
involved, but I can vouch for the fact that it's an option. :)

On 5/18/07, Matej Knopp [EMAIL PROTECTED] wrote:
It is customizable, but you need a rather complicated CSS magic to do
it. Or, you can just override the images. Look at the images in the
modal window package to see how it works.

-Matej

On 5/18/07, Igor Vaynberg [EMAIL PROTECTED] wrote:
you can try applying your own css, but i doubt it. the window is not
made to
be too customizable atm.probably next major ver of wicket will include
a
rework of it. for now, you can integrate any of the zillion of
javascript
libs out there that produce a simple modal pane.

-igor

On 5/17/07, Nikhil Gahlot [EMAIL PROTECTED] wrote:

Hi,

I am using ModalWindow for my login screen. In that I have used panel
as
its
content. Now I want to hide everything (including title bar, close
link,
etc) on Modal Window except the rich panel I am using. In other
words, is
there a way I can remove modal window`s title bar with close link and
borders(left, right and bottom) keeping only body active that houses
my
login panel?

Thanks
Nikhil
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Re: [Wicket-user] how to customize Modal Window`s appearance

2007-05-23 Thread Jonathan Locke



okay.  i don't understand CSS either.  ;-)  but thanks!


Scott Swank wrote:
 
 1. subclass ModalWindow, with following in the constructor.
 
   public YourModalWindow(String id)
   {
   super(id);
   add(HeaderContributor.forCss(/style/cart_global.css));
   super.setCssClassName(w_vegas);
   }
 
 2. have someone who understands css (i.e. not me) put lots of thingies
 in the above css file to override details of the css that ships with
 ModalWindow.  E.g.
 
 div.wicket-modal div.w_vegas div.w_left,
 div.wicket-modal div.w_vegas div.w_right {
   background-image: url();
   _background-image: url();
 }
 
 div.wicket-modal div.w_vegas div.w_top,
 div.wicket-modal div.w_vegas div.w_bottom,
 /*div.wicket-modal div.w_vegas div.w_topLeft,*/
 div.wicket-modal div.w_vegas div.w_topRight,
 div.wicket-modal div.w_vegas div.w_bottomRight,
 div.wicket-modal div.w_vegas div.w_bottomLeft
 {
   background-image: url();
   _background-image: url();
 }
 
 div.wicket-modal div.w_vegas div.w_close  {
   background: url(/mytrip/images/close_x.gif) no-repeat;
 }
 
 Scott
 
 
 On 5/23/07, Jonathan Locke [EMAIL PROTECTED] wrote:


 yeah, i'd be interested in this result too.


 Scott Swank wrote:
 
  Agreed.  We've gone the complicated CSS magic route and it is a bit
  involved, but I can vouch for the fact that it's an option.  :)
 
  On 5/18/07, Matej Knopp [EMAIL PROTECTED] wrote:
  It is customizable, but you need a rather complicated CSS magic to do
  it. Or, you can just override the images. Look at the images in the
  modal window package to see how it works.
 
  -Matej
 
  On 5/18/07, Igor Vaynberg [EMAIL PROTECTED] wrote:
   you can try applying your own css, but i doubt it. the window is not
  made to
   be too customizable atm.probably next major ver of wicket will
 include
  a
   rework of it. for now, you can integrate any of the zillion of
  javascript
   libs out there that produce a simple modal pane.
  
   -igor
  
  
  
   On 5/17/07, Nikhil Gahlot [EMAIL PROTECTED] wrote:
   
Hi,
   
I am using ModalWindow for my login screen. In that I have used
 panel
  as
   its
content. Now I want to hide everything (including title bar, close
  link,
etc) on Modal Window except the rich panel I am using. In other
  words, is
there a way I can remove modal window`s title bar with close link
 and
borders(left, right and bottom) keeping only body active that
 houses
  my
login panel?
   
Thanks
Nikhil
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Re: [Wicket-user] new pagemaps in same window

2007-05-19 Thread Jonathan Locke



i am using the normal httpsessionstore.

it really creates new page maps in the same browser window.


Johan Compagner wrote:
 
 but in 1.3 the auto detect window name is disabled by default if you use
 secondlevel cache
 so why is that check working for you anyway?
 
 But it really does that when you open a complete new browser?
 
 johan
 
 
 On 5/19/07, Jonathan Locke [EMAIL PROTECTED] wrote:



 somehow i'm getting a new pagemap every time i go to our home page (not
 with
 browser refresh, with a link). it's probably my fault, but does anyone
 have
 any idea how that might happen?  i thought window.name was being used to
 detect whether a window is new and that a page map would only be created
 in
 a new window.  somehow that check is not working out.

jon

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Re: [Wicket-user] new pagemaps in same window

2007-05-19 Thread Jonathan Locke



you are correct that this does not occur with secondlevelcachesessionstore.


Johan Compagner wrote:
 
 but in 1.3 the auto detect window name is disabled by default if you use
 secondlevel cache
 so why is that check working for you anyway?
 
 But it really does that when you open a complete new browser?
 
 johan
 
 
 On 5/19/07, Jonathan Locke [EMAIL PROTECTED] wrote:



 somehow i'm getting a new pagemap every time i go to our home page (not
 with
 browser refresh, with a link). it's probably my fault, but does anyone
 have
 any idea how that might happen?  i thought window.name was being used to
 detect whether a window is new and that a page map would only be created
 in
 a new window.  somehow that check is not working out.

jon

 --
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Re: [Wicket-user] Page Expiration when first clicking AJAX

2007-05-19 Thread Jonathan Locke



i discovered in my case that this was related to cookie overflow created
by some errant javascript on the page doing ajax callbacks.  it had nothing
to do with wicket.  you might try modifying a build of wicket to diagnose
your problem.  i wound up putting some print statements in wicket where
sessions are created to dump the jsessionid then finally putting alert
statements
in the javascript.


Andrew Berman wrote:
 
 I haven't found a solution yet.  I'm still debugging stuff and have no
 solution.  The problem definitely occurs when the initial redirect occurs
 from /context to /context/YourHomePage.
 
 On 5/17/07, Jonathan Locke [EMAIL PROTECTED] wrote:



 Did we find a resolution for this yet?  We are having the same problem in
 Wicket 1.3 trunk and I'm about to start investigating.  Any definite
 information or conclusions (whether complete or not) would be very much
 appreciated.


 Andrew Berman wrote:
 
  I am having a strange issue.  If I access my site for the first time (I
  clear all cookies, sessions, and cache before going to the site), the
 page
  comes up fine.  However, if I click one of the AJAX links, I get a page
  expired error.  Any thoughts why this is happening?  I see it create a
 new
  session and the cookie, but it looks like the Ajax link is not valid
 for
  some reason.  I am using Wicket 1.2.6.  Any thoughts?
 
  Thanks for any help,
 
  Andrew
 
 
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Re: [Wicket-user] Page Expiration when first clicking AJAX

2007-05-19 Thread Jonathan Locke



sorry, no.  that was not wicket's javascript.


Andrew Berman wrote:
 
 Interesting.  I'm only using Wicket for my AJAX, so are you saying that
 something is wrong with the Wicket AJAX JavaScript?
 
 On 5/19/07, Jonathan Locke [EMAIL PROTECTED] wrote:



 i discovered in my case that this was related to cookie overflow created
 by some errant javascript on the page doing ajax callbacks.  it had
 nothing
 to do with wicket.  you might try modifying a build of wicket to diagnose
 your problem.  i wound up putting some print statements in wicket where
 sessions are created to dump the jsessionid then finally putting alert
 statements
 in the javascript.


 Andrew Berman wrote:
 
  I haven't found a solution yet.  I'm still debugging stuff and have no
  solution.  The problem definitely occurs when the initial redirect
 occurs
  from /context to /context/YourHomePage.
 
  On 5/17/07, Jonathan Locke [EMAIL PROTECTED] wrote:
 
 
 
  Did we find a resolution for this yet?  We are having the same problem
 in
  Wicket 1.3 trunk and I'm about to start investigating.  Any definite
  information or conclusions (whether complete or not) would be very
 much
  appreciated.
 
 
  Andrew Berman wrote:
  
   I am having a strange issue.  If I access my site for the first time
 (I
   clear all cookies, sessions, and cache before going to the site),
 the
  page
   comes up fine.  However, if I click one of the AJAX links, I get a
 page
   expired error.  Any thoughts why this is happening?  I see it create
 a
  new
   session and the cookie, but it looks like the Ajax link is not valid
  for
   some reason.  I am using Wicket 1.2.6.  Any thoughts?
  
   Thanks for any help,
  
   Andrew
  
  
 
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[Wicket-user] new pagemaps in same window

2007-05-18 Thread Jonathan Locke



somehow i'm getting a new pagemap every time i go to our home page (not with
browser refresh, with a link). it's probably my fault, but does anyone have
any idea how that might happen?  i thought window.name was being used to
detect whether a window is new and that a page map would only be created in
a new window.  somehow that check is not working out.

   jon

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Re: [Wicket-user] Page Expiration when first clicking AJAX

2007-05-17 Thread Jonathan Locke



Did we find a resolution for this yet?  We are having the same problem in
Wicket 1.3 trunk and I'm about to start investigating.  Any definite
information or conclusions (whether complete or not) would be very much
appreciated.


Andrew Berman wrote:
 
 I am having a strange issue.  If I access my site for the first time (I
 clear all cookies, sessions, and cache before going to the site), the page
 comes up fine.  However, if I click one of the AJAX links, I get a page
 expired error.  Any thoughts why this is happening?  I see it create a new
 session and the cookie, but it looks like the Ajax link is not valid for
 some reason.  I am using Wicket 1.2.6.  Any thoughts?
 
 Thanks for any help,
 
 Andrew
 
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Re: [Wicket-user] Gricket: The Love-Child of Grails and Wicket

2007-05-17 Thread Jonathan Locke

Very interesting. I'm not that interested for production code, but this
could be really exceptional for prototyping and fast TTM when that matters.

jklappenbach wrote:

http://graemerocher.blogspot.com/2007/05/grails-wicket-wonders-of-grails-plug-in.html
(SFW)

Graeme pinged me as soon as I got online this morning to tell me about his
work on integrating Wicket and Groovy, a Rails implementation based on the
Java scripting language, Groovy.

As you'll read, the integration took him *20 minutes*, and the result was
the following:

1. Wicket classes can be utilized as-is from wicket jars inside a
Groovy environment, meaning that there's no concern of keeping a
Groovy-based mirror of Wicket synchronized.
2. Wicket classes can take advantage of GORM, with dynamic methods
(This is very, very, cool)
3. Developers can take advantage of closures, and all other nice
features of Groovy

Graeme warned me that he hadn't tested much more than a Hello World
example. But in getting even those two simple words out, a lot had to be
going on under the hood. I'd be surprised if there were issues lurking
beyond.

If you haven't heard of Grails, or would like to know more, I have a short
post here at:

http://tapestryofthoughts.blogspot.com/2007/05/grails-rails-gone-groovy.html

For more in-depth, there's the Grails site at:

http://grails.codehaus.org/

-jjk

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Re: [Wicket-user] weird url behaviour for bookmarkable pages

2007-05-15 Thread Jonathan Locke



I'm also getting this and I don't have multiple windows open.  Is this a bug
in the new browser window check?


Johan Compagner wrote:
 
 i think in 2.0 the newBrowserWindow check is still enabled.
 
 this makes sure that for one pagemap only one window is open.
 If the checker finds another tab (or window) in a browser that is new and
 the pagemap
 is already used by another window then it will redirect and the same page
 will be moved
 to the new pagemap (wicket-1%3A)
 
 this can be disabled (and is already disabled in 1.3 by default when using
 the SecondLevelCache)
 
 johan
 
 
 On 5/14/07, Wouter de Vaal [EMAIL PROTECTED] wrote:

 Hi,

 I get some strange behaviour using bookmarkeable pages. My home page
 class has a default constructor and I am using a simple   href=/Home 
 link to get to it. Now most of the time, this works
 just fine, but sometimes a client redirect turns the browser location
 into
 /?wicket:bookmarkablePage=wicket-1%3Amypackage.Home

 Any idea what triggers this behaviour, and more important, how to avoid
 it?

 I also get infrequent pageMap additions to the urls with bookmarkable
 pages, why are those necessary and can they be avoided?

 No session specific data is used in above cases.
 I'm using a 2.0 snapshot.

 Regards,
 Wouter

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Re: [Wicket-user] Anti-Wicket?

2007-05-14 Thread Jonathan Locke



i don't understand how you can have a component-oriented web
framework that generates markup and css without having layout
managers.  browsers are not consistent enough in the way they 
render to just position everything absolutely.  even if they were
consistent, you still couldn't use fixed layouts because fonts vary 
from platform to platform.  what you're asking for doesn't make
any sense to me because programmatically specifying the place 
of all widgets and content, is /exactly what a layout manager does/.

my personal opinion (and one of the driving forces behind wicket)
is that designers should not code and coders should not design.

in any case, i am not aware of other solutions to this problem 
outside those already mentioned.


Ashley Aitken wrote:
 
 
 Hi Igor and Alexandre (and everyone),
 
 Wow, thanks of the prompt posts.
 
 I'm familiar with GWT (AJAX with client-side application) and Echo2  
 (AJAX with server-side application) and they do, as you suggest, both  
 use layout managers.  In particular, I am considering using Echo2.   
 However, their focus in most only AJAX and less on the layout (at  
 least, for Echo2, as far as I can tell).
 
 I am looking more for a full-featured way of doing Web design  
 programmatically, the major focus being on CSS layout perhaps, rather  
 than using some layout manager.  I guess an analogy would be between  
 using a layout manager in Java SE, and programmatically specifying  
 the place of all widgets and content.
 
 I am interested in the latter, any ideas?  I don't wish to make a  
 design that can be customised by CSS, I want to programmatically  
 generate CSS styles to layout the content of each page (as directed  
 by the content).  I hope that makes sense.
 
 Cheers,
 Ashley.
 
 --
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 Perth, Western Australia
 mrhatken at mac dot com
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Re: [Wicket-user] Page Expiration when first clicking AJAX

2007-05-13 Thread Jonathan Locke



we're getting some issue like this too and on only one server.


Eelco Hillenius wrote:
 
 Are you working on multiple servers?
 
 On 5/12/07, Andrew Berman [EMAIL PROTECTED] wrote:
 Igor, Eelco, anyone?  This issue is pretty major as I'm losing all the
 session info when they first come into the app



 On 5/11/07, Andrew Berman [EMAIL PROTECTED] wrote:
  Could there be an issue with the PageMap?
 
 
 
  On 5/11/07, Andrew Berman [EMAIL PROTECTED]  wrote:
   I am having a strange issue.  If I access my site for the first time
 (I
 clear all cookies, sessions, and cache before going to the site), the
 page
 comes up fine.  However, if I click one of the AJAX links, I get a page
 expired error.  Any thoughts why this is happening?  I see it create a
 new
 session and the cookie, but it looks like the Ajax link is not valid for
 some reason.  I am using Wicket 1.2.6.  Any thoughts?
  
   Thanks for any help,
  
   Andrew
  
 
 


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Re: [Wicket-user] How to remove a Behaviour?

2007-05-04 Thread Jonathan Locke



remove is a good addition, but what about isEnabled()?  that might be a nice
way to conditionally apply a behavior instead of removing it.


Johan Compagner wrote:
 
 i think we should be thinking of a remove(IBehavior)
 It is pretty in line with the rest (think about Swing listeners)
 And it doesn't sit in the way as far as i can think of.
 
 johan
 
 
 On 5/2/07, Igor Vaynberg [EMAIL PROTECTED] wrote:

 you cannot remove a behavior currently. what you can do is call stop() on
 the timerbehavior.

 -igor


 On 5/2/07, Ivo van Dongen  [EMAIL PROTECTED] wrote:

  Hi,
 
  We have a component with an AjaxSelfUpdatingTimerBehavior attached to
  it. When a certain condition is reached we want to remove the behaviour
 from
  its parent before updating it again, to prefent it from going on
 forever. We
  couldn't find a way for this. Component has a remove() method, but
  IBehaviour does not. What is the preferred way to do this?
 
  Thanks in advance,
  Ivo van Dongen
 
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Re: [Wicket-user] Wicket BoF @ Apache Con: thursday May 3rd, 8pm

2007-05-01 Thread Jonathan Locke



oh you just wait a couple weeks.  you will be too.


igor.vaynberg wrote:
 
 you guys are old!
 
 -igor
 
 
 On 5/1/07, Jonathan Locke [EMAIL PROTECTED] wrote:



 Hey, wait a /minute/, Martijn, if this is the 80's isn't it hip to be
 square?

 (insert sax solo)


 Martijn Dashorst wrote:
 
  We picked a time and day: May 3rd, 8pm. Be there or be square
  (obligatory '80s quote).
 
  Martijn
 
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Re: [Wicket-user] Nested Forms and onSubmit()?

2007-04-29 Thread Jonathan Locke



neato.  i did not know that.  i vaguely recall doing this once
and i recall being really suprised it worked.  now i know why! ;-)


Martijn Dashorst wrote:
 
 On 4/27/07, jan_bar [EMAIL PROTECTED] wrote:
 I think that you cannot nest form in HTML. You have to nest them with
 CSS. This will also solve your trouble with form submits - I think that
 the
 browser simply ignores the nested form tags.
 
 Wicket supports nested forms. The inner form tags are replaced with
  elements. This is a component framework, where you expect forms
 to be able to be nested (form on a reusable panel anyone?).
 
 Martijn
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Re: [Wicket-user] Nested Forms and onSubmit()?

2007-04-29 Thread Jonathan Locke



well, it depends on what kind of reuse you want.  if you have a particularly
cool form panel, it might be something that should stand on its own or nest.
but i think you're probably right in general.  i've got quite a few panels
that just hold some fields for inclusion in a form.


igor.vaynberg wrote:
 
 imho all he should do is extend a panel, and make sure that panel is
 always
 inside a form.
 
 there is no need to have a form to group a few fields together.
 
 -igor
 
 
 On 4/29/07, Martijn Dashorst [EMAIL PROTECTED] wrote:

 One note: this is a 1.3 feature so only expect it to work there.

 What happens with the nested forms is that the buttons stay, and iirc
 only the inner form is submitted when a button is pressed inside that
 inner form.

 I think the discussion never got to a conclusion on what happens when
 the outer form is submitted. I think we can still change that behavior
 (we're not final or in release candidate mode).

 FormComponent is for input controls (textfields, buttons,
 dropdownchoice, etc). Forms are for the form tag. So in your case, you
 should extend Form, and Wicket should take care of processing the
 right form (inner, outer, sibling) for you.

 But as I said, it probably is still a bit raw currently, as it is a
 new feature and not widely used.

 Martijn

 On 4/29/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
 
   Wicket supports nested forms. The inner form tags are replaced with
elements. This is a component framework, where you expect forms
   to be able to be nested (form on a reusable panel anyone?).
 
  I'm just starting to work on a similar thing: an address form panel to
  be used in other forms.
 
  Had assumed I should be extending FormComponent rather than Form
 itself.
  Are you suggesting otherwise? Or does the nested form's submit button
  get removed too?
 
  Is there an example of this kind of thing? I couldn't find one.
 
  Cheers,
  Derek
 
 
 
  -Original Message-
  From: [EMAIL PROTECTED] on behalf of Martijn
 Dashorst
  Sent: Fri 4/27/2007 2:37 PM
  To: wicket-user@lists.sourceforge.net
  Subject: Re: [Wicket-user] Nested Forms and onSubmit()?
 
  On 4/27/07, jan_bar [EMAIL PROTECTED] wrote:
   I think that you cannot nest form in HTML. You have to nest them
 with
   CSS. This will also solve your trouble with form submits - I think
 that the
   browser simply ignores the nested form tags.
 
  Wicket supports nested forms. The inner form tags are replaced with
   elements. This is a component framework, where you expect forms
  to be able to be nested (form on a reusable panel anyone?).
 
  Martijn
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Re: [Wicket-user] newbie: how do I put wicket-injected objects into an html comment?

2007-04-27 Thread Jonathan Locke



yeah, with setEscapeModelStrings(false).


igor.vaynberg wrote:
 
 we do not support this, the only way i can think of doing something like
 this is:
 
 add(new label(foo, !-- bar --));
 
 -igor
 
 
 On 4/27/07, Lowell Kirsh [EMAIL PROTECTED] wrote:

 What I'd like to do is something like:

 !-- p wicket:id=foosome data that should only be visible when
 viewing the page's source code/p --

 Does this make sense? How can I do that?

 Thanks,
 Lowell

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Re: [Wicket-user] LiveSessionsPage

2007-04-22 Thread Jonathan Locke



yeah, i think all that stuff moved to examples due to 
security concerns with that stuff being bookmarkable
and not protected by an authorization strategy.


Alexander Lohse wrote:
 
 Hi,
 
 I cannot find the LiveSessionsPage since I recently updated our  
 project to the lastest version of wicket.
 
 Has it been renamed or moved to a separate project?
 
 Best regards and thanks,
 
 Alex
 __
 
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 Tel +49 38374 752 11 • Fax +49 38374 752 23
 http://www.humantouch.de
 
 Human Touch Medienproduktion GmbH
 Am See 1 • 17440 Klein Jasedow • Deutschland
 
 Geschäftsführung:
 Lara Mallien, Nele Hybsier, Alexander Lohse, Johannes Heimrath (Senior)
 Handelsregister Stralsund • HRB 4192 • USt-IdNr. DE128367684
 
 
 
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Re: [Wicket-user] Can templates have an extension other than .html?

2007-04-22 Thread Jonathan Locke



i can confirm that.  i have no idea what i meant by that comment.  ;-)


Eelco Hillenius wrote:
 
 On 2/28/07, Igor Vaynberg [EMAIL PROTECTED] wrote:
 that is an interesting comment indeed. if it was really true then
 webpage.getmarkuptype() would be final. anyone else mind to comment?
 
 Looks like an ancient leftover. I ditched it.
 
 Eelco
 
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Re: [Wicket-user] Wicket 1.3 ready for development?

2007-04-14 Thread Jonathan Locke



July is for sissies.  We're shooting for June.


Eelco Hillenius wrote:
 
 I would recommend using 1.3. Some people of the team (including me)
 are using 1.3 for a project that needs to be live bigtime medio July.
 So, 1.3 has to be good enough to run production systems by then (and
 in fact we're running a production server with a 1.3 snapshot right
 now and that works fine).
 
 Eelco
 
 
 On 3/30/07, Erik van Oosten [EMAIL PROTECTED] wrote:
 Hello,

 I am looking for some thoughts that allow me to decide whether I am
 going to use 1.2 or 1.3 for my next project. Work starts in a few weeks
 from now and needs to be finished somewhere in July. The Wicket part is
 rather small (10 crud pages) but it will feature spring annotations,
 wicket-auth with Acegi (hopefully with a stateless login page), and
 probably some ajax updated panels.

 I see three options:
 - by July wicket 1.3 is not ready for production use = 1.2 (option 1)
 - by July wicket 1.3 is ready for production use =
   - it is easy to switch from 1.2 to 1.3 = 1.2 now, switch to 1.3 later
 (option 2)
   - it is not so easy to switch from 1.2 to 1.3 = 1.3 (option 3)

 WDYT?

 Regards,
 Erik.

 --
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 http://www.day-to-day-stuff.blogspot.com/


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Re: [Wicket-user] Interesting maven experience...

2007-04-12 Thread Jonathan Locke



i am reproing this.

try doing a mvn -U


Eelco Hillenius wrote:
 
 Any idea how to reproduce this?
 
 Eelco
 
 
 On 4/11/07, Per Ejeklint [EMAIL PROTECTED] wrote:

 Just a note for your information.

 I just had an unusual experience with maven when building wicket-1.x. Had
 done a few updates, and then the install target got in a strange loop. It
 took forever and then my disk was full! Turned out that the wicket
 sources
 has swollen a bit:

 -rw-r--r--1 ejeklint  ejeklint  13756395463 Apr 11 12:47
 wicket-1.3.0-incubating-SNAPSHOT-sources.jar

 Whoah! Didn't seem right. :)

 Deleting all and getting it fresh from svn fixed it.

 (Sorry for previous empty post, keyboard slip.)
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Re: [Wicket-user] Interesting maven experience...

2007-04-12 Thread Jonathan Locke



we just figured this out. 
try mvn clean install and it should work.


Per Ejeklint wrote:
 
 Sorry, I really don't know. I have erased the entire branch so I can't
 re-run the sequence. I checked out wicket-1.x about 10 days ago, and I
 think it was after the second update which I did this Saturday or Sunday,
 that the problems started. It was definitely before the big renaming
 change to org.apache.wicket.
 
 Maven did spew out a lot of warnings on javadoc generation, a number of
 @link tags that couldn't be resolved but I don't remember the exact
 message, and then it hanged on generating the sources.jar.
 
 /Per
 
 
 Eelco Hillenius wrote:
 
 Any idea how to reproduce this?
 
 Eelco
 
 
 On 4/11/07, Per Ejeklint [EMAIL PROTECTED] wrote:

 Just a note for your information.

 I just had an unusual experience with maven when building wicket-1.x.
 Had
 done a few updates, and then the install target got in a strange loop.
 It
 took forever and then my disk was full! Turned out that the wicket
 sources
 has swollen a bit:

 -rw-r--r--1 ejeklint  ejeklint  13756395463 Apr 11 12:47
 wicket-1.3.0-incubating-SNAPSHOT-sources.jar

 Whoah! Didn't seem right. :)

 Deleting all and getting it fresh from svn fixed it.

 (Sorry for previous empty post, keyboard slip.)
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Re: [Wicket-user] Form macro-component

2007-04-09 Thread Jonathan Locke



maybe have FormComponentFeedbackBorders for the individual
components and then a global feedback panel to catch the general
ones (install a filter to ignore reporters that have feedback borders)


Carlos Pita-4 wrote:
 
 Hi all,
 
 suppose you have to implement some form input component that is
 composed from other simple FormComponents. These simple input fields
 will be ajax-validated individually, and they will be subject to some
 global (inter-field) validation too. An example could be three
 drop-downs for a date, with local validation requiring each field and
 global validation asking for a valid Gregorian calendar date. AFAIK
 there are nothing like nested forms in wicket, you have a form and
 then at the next level its FormComponents and that's all. So I tend to
 think of a static helper method that instantiates the individual form
 fields and registers them with the form. Maybe there must be some
 synthetic invisible component just to attach feedback from the date
 global-validation, which will be implemented as a form validator. For
 example:
 
 class MyForm extends Form {
 
public MyForm(String id) {
   
   DateComponent.add(this, birthDate);
   
}
 }
 
 select wicket:id=birthDate.day/
 
 
 select wicket:id=birthDate.month/
 
 
 select wicket:id=birthDate.year/
 
 
  !-- dummy component --
 
 
 
 There are two things in this approach that I don't particularly like:
 
 1) Having a dummy component to attach date global-validation errors
 (notice that they are not the same as form errors).
 
 2) The procedural nature of the solution, there is no real Date component.
 
 What do you think? Do you have a better alternative that is not too
 convolved?
 
 Best regards,
 Carlos
 
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Re: [Wicket-user] error(...) No page found for component

2007-03-31 Thread Jonathan Locke



You component is not attached to a parent yet.
You could try doing that work in onAttach().


serban.balamaci wrote:
 
 Hi.
 
 I have a problem in that inside the constructor of a page(panel actually)
 i invoke a stored procedure which needs to get the model for the panel.
 The stored procedure may throw an error message. The error message should
 be seen by the user, he can understand what he did wrong. So inside the
 constructor i have something like this:
 
 public PanelConstructor() {
   try {
 
  invoke stored procedure
.
   } catch(UserPresentableException e) {
error(e.getMessage);
   }
 }
 
 The problem is that if the error is thrown i get a No page found for
 component. I understand that the cause of the error is that the error
 component not being instantiated because of the constructor not being
 finished(or i think that's the cause). 
 
 Any ideas of solutions that i can implement? 
 I know that i could set wicket to production instead of development and
 get rid of the stack trace. The problem is that i would like to keep the
 error message - to show the error message back to the user-. Should i
 instead of doing error(e.getMessage) rethrow the message inside a new
 defined exception and have a custom error page for that exception in which
 i would show only the message of the error.
 
 Is there any option that would keep me from treating the errors in the
 constructor other than how i treat an error from a button push in which i
 do error(e.getMessage())?
 
 Thanks.
 
 
 
 

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Re: [Wicket-user] error(...) No page found for component

2007-03-31 Thread Jonathan Locke



yeah, threadlocal would work.  it would also get rid of the need for 
Session feedback messages.  in some sense, i think the error is really 
being registered for the request (thread) anyway, not any object.  
so i like that idea.  it can just be a threadlocal in the appropriate 
class and everyone's happy, we actually remove code and component
stays the same size.  +1


Eelco Hillenius wrote:
 
 Apparently the usecase is pretty rare (only discovered after 2 years of
 production use)
 
 Well, you can't really know as you don't know how many people ever
 bumped across this and decided to implement a workaround without
 mentioning it to us. More importantly, I just don't think it is right
 users cannot do this, and there's a ton of ways to solve this. I agree
 with your queue idea, that's the nicest one.
 
 Eelco
 
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Re: [Wicket-user] error(...) No page found for component

2007-03-31 Thread Jonathan Locke



if you can wait, i think we're going to be fixing this so you don't have to
make any changes.


serban.balamaci wrote:
 
 Thanks for the answer. Do you mean that instead of doing the loading of
 the model in the constructor to do it onAttach() ?
 
 
 
 Jonathan Locke wrote:
 
 
 You component is not attached to a parent yet.
 You could try doing that work in onAttach().
 
 
 serban.balamaci wrote:
 
 Hi.
 
 I have a problem in that inside the constructor of a page(panel
 actually) i invoke a stored procedure which needs to get the model for
 the panel. The stored procedure may throw an error message. The error
 message should be seen by the user, he can understand what he did wrong.
 So inside the constructor i have something like this:
 
 public PanelConstructor() {
   try {
 
  invoke stored procedure
.
   } catch(UserPresentableException e) {
error(e.getMessage);
   }
 }
 
 The problem is that if the error is thrown i get a No page found for
 component. I understand that the cause of the error is that the error
 component not being instantiated because of the constructor not being
 finished(or i think that's the cause). 
 
 Any ideas of solutions that i can implement? 
 I know that i could set wicket to production instead of development and
 get rid of the stack trace. The problem is that i would like to keep the
 error message - to show the error message back to the user-. Should i
 instead of doing error(e.getMessage) rethrow the message inside a new
 defined exception and have a custom error page for that exception in
 which i would show only the message of the error.
 
 Is there any option that would keep me from treating the errors in the
 constructor other than how i treat an error from a button push in which
 i do error(e.getMessage())?
 
 Thanks.
 
 
 
 
 
 
 
 

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Re: [Wicket-user] error(...) No page found for component

2007-03-31 Thread Jonathan Locke



Eelco Hillenius wrote:
 
 About the session messages... well, they have a slightly different
 meaning: display whenever there is a feedback component rendered on
 any page. This is useful when writing generic software where you know
 that a message should be displayed, but you just don't know the target
 (e.g. at the end of a wizard).
 

yeah, i don't know what i was thinking... threadlocal clearly doesn't 
work for session scoping.  duh.  ;-)


Eelco Hillenius wrote:
 
 About per-page or per-request... yeah, we've been there too. If we
 look back at the history we can say that the page is the correct place
 to have it. 
 

We chose that, yes.  But would it be better to simply have all feedback
messages stored in the session?  That would solve all our scoping problems
wouldn't it?  Every feedback message would go into the session and then
feedback panels could pull them out when they're ready to.  If a feedback
message is in the session for more than one request cycle and it is not
cleared
by a feedback panel, we would discard it (and maybe warn in debug mode).

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Re: [Wicket-user] error(...) No page found for component

2007-03-31 Thread Jonathan Locke



yeah, your patch would work, but i think we agree that the 
session approach is better and cleaner (both functionally and
conceptually) for the long term even if it could at least 
/conceivably/ break some especially odd code (which it 
seems likely does not even exist).  

the semantics are actually quite nice in the session version.  
messages added directly to the session would still have a 
null reporter and persist until rendered, as they currently 
do (no changes there).  

messages reported by components would all be cleared at 
the end of a request (not the beginning of the next one).  
this is conceptually clearer and simpler and it actually 
reduces memory load (as does the removal of all aspects 
of feedback message storage from Page).

so i can't actually see any important disadvantage to the 
session approach.  and there seem to be several nice 
little wins.  probably less code too.


Eelco Hillenius wrote:
 
 We chose that, yes.  But would it be better to simply have all feedback
 messages stored in the session?  That would solve all our scoping
 problems
 wouldn't it?  Every feedback message would go into the session and then
 feedback panels could pull them out when they're ready to.  If a feedback
 message is in the session for more than one request cycle and it is not
 cleared
 by a feedback panel, we would discard it (and maybe warn in debug mode).
 
 I think I'm fine with a session based solution. The thing that
 wouldn't work anymore is when you assign messages to components/ pages
 which are not rendered this request but a next request. That might be
 too far-fetched to support though. However, the solution which I'll
 post as a patch on the end of this message will support anything it
 does now. The thing I like about putting them in the session is that
 it is clean and will save a little bit of memory in the page. WDYT?
 
 Eelco
 
 Index:
 /Users/eelcohillenius/Documents/workspace_wicket/wicket-1.x/jdk-1.4/wicket/src/main/java/wicket/Component.java
 ===
 ---
 /Users/eelcohillenius/Documents/workspace_wicket/wicket-1.x/jdk-1.4/wicket/src/main/java/wicket/Component.java
 (revision
 524461)
 +++
 /Users/eelcohillenius/Documents/workspace_wicket/wicket-1.x/jdk-1.4/wicket/src/main/java/wicket/Component.java
 (working
 copy)
 @@ -662,7 +662,7 @@
*/
   public final void debug(final String message)
   {
 - getPage().getFeedbackMessages().debug(this, message);
 + Page.addMessage(new FeedbackMessage(this, message,
 FeedbackMessage.DEBUG));
   }
 
   /**
 @@ -685,7 +685,7 @@
*/
   public final void error(final Serializable message)
   {
 - getPage().getFeedbackMessages().error(this, message);
 + Page.addMessage(new FeedbackMessage(this, message,
 FeedbackMessage.ERROR));
   }
 
   /**
 @@ -696,7 +696,7 @@
*/
   public final void fatal(final String message)
   {
 - getPage().getFeedbackMessages().fatal(this, message);
 + Page.addMessage(new FeedbackMessage(this, message,
 FeedbackMessage.FATAL));
   }
 
   /**
 @@ -1235,7 +1235,7 @@
*/
   public final void info(final String message)
   {
 - getPage().getFeedbackMessages().info(this, message);
 + Page.addMessage(new FeedbackMessage(this, message,
 FeedbackMessage.INFO));
   }
 
   /**
 @@ -2376,7 +2376,7 @@
*/
   public final void warn(final String message)
   {
 - getPage().getFeedbackMessages().warn(this, message);
 + Page.addMessage(new FeedbackMessage(this, message,
 FeedbackMessage.WARNING));
   }
 
   /**
 Index:
 /Users/eelcohillenius/Documents/workspace_wicket/wicket-1.x/jdk-1.4/wicket/src/main/java/wicket/feedback/FeedbackMessages.java
 ===
 ---
 /Users/eelcohillenius/Documents/workspace_wicket/wicket-1.x/jdk-1.4/wicket/src/main/java/wicket/feedback/FeedbackMessages.java
 (revision
 524461)
 +++
 /Users/eelcohillenius/Documents/workspace_wicket/wicket-1.x/jdk-1.4/wicket/src/main/java/wicket/feedback/FeedbackMessages.java
 (working
 copy)
 @@ -301,7 +301,7 @@
* @param message
* @param level
*/
 - public final void add(Component reporter, String message, int level) {
 + public final void add(Component reporter, Serializable message, int
 level) {
   add(new FeedbackMessage(reporter, message, level));
   }
   
 @@ -311,7 +311,7 @@
* @param message
*the message
*/
 - final void add(FeedbackMessage message)
 + public final void add(FeedbackMessage message)
   {
   if (log.isDebugEnabled())
   {
 Index:
 /Users/eelcohillenius/Documents/workspace_wicket/wicket-1.x/jdk-1.4/wicket/src/main/java/wicket/Page.java

Re: [Wicket-user] error(...) No page found for component

2007-03-31 Thread Jonathan Locke



Yeah, that does sound like overkill in a single-threaded environment.
What other thread would ever be accessing a session's feedback messages?


Eelco Hillenius wrote:
 
 Do feedbackmessages in the session really need to be synchronized with
 CopyOnWriteArrayList? I'm in doubt whether synchronization helps that
 much, but if it does, wouldn't it be more efficient to use a normal
 synchronized one?
 
 Eelco
 
 
 On 3/31/07, Eelco Hillenius [EMAIL PROTECTED] wrote:
 On 3/31/07, Igor Vaynberg [EMAIL PROTECTED] wrote:
  i am not so sure this is correct. we often deal with two page instances
  inside the same request - the current one and the response page. this
 breaks
  any kind of scoping as errors reported against current page will now
 make it
  into response page?

 About the session messages... well, they have a slightly different
 meaning: display whenever there is a feedback component rendered on
 any page. This is useful when writing generic software where you know
 that a message should be displayed, but you just don't know the target
 (e.g. at the end of a wizard).

 About per-page or per-request... yeah, we've been there too. If we
 look back at the history we can say that the page is the correct place
 to have it. So, what we should do is put the messages for the pages in
 the session, and at the start of rendering (right before attach),
 iterate through those messages and the ones that have components
 attached (are for pages) are then added to those pages. If there are
 messages with components that are not coupled to a page, well tough
 luck and discard them (those would throw an exception currently).

 One final thing we should fix is the fact that feedbackmessages don't
 get cleaned up when there are no feedback components in the page. This
 is a memory leak.

 Eelco

 
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Re: [Wicket-user] Lifecycle issue with getVariation

2007-03-29 Thread Jonathan Locke



can you show us your code?


Chris Colman wrote:
 
 there is a reason why some of the stuff is done where it is. now,
 
 I believe that with the minor change that I have made everything is
 still being done in the exact same order so there should be no
 consequences of this change. It's just that all the stuff done in
 commonInit is now being slightly deferred so that it uses completely
 constructed objects instead of partially constructed objects - that
 can't be a bad thing can it?
 
 I've certainly had no trouble with my page creation and usage with this
 change - in fact things that I couldn't get to work before now work
 perfectly! 
 
 Source changes: I've taken a more inclusive, simpler approach that
 changes RequestCycle and BookmarkablePageRequestTarget instead of
 changing the DefaultPageFactory. This means absolutely no explicit
 calling of the commonInit method by users. I had to change 3 pages in
 the test cases so that they do their init in commonInit instead of the
 constructor and all test cases now succeed.
 
 I can make available a copy of my modified 1.2.5 source with all changes
 clearly marked if any one is interested.
 
 Java is interesting in that virtual methods appear to 'semi' work on
 partially constructed objects (which can make you think everything is
 fine). C++ on the other hand did not allow the virtual function
 mechanism to work properly until objects were completely constructed. So
 prior to constructor completion, for non abstract methods, C++ just
 calls the current class' method instead of the most derived class'
 method and, for abstract methods, it could result in the strange but
 extremely useful 'call of pure virtual (abstract) function' error.
 
 When you got that error you knew you were dancing with the devil. I
 think Java lets you keep on dancing...
 
 im not sure there is a reason for the markup loading for bodcontainer,
 we might be able to do that lazily when getbodycontainer() is called.
 
 Other frameworks (eg,. Echo2) handle this partial construction problem
 by automatically calling an init method on the class whenever you add it
 to the system after instantiation. The user doesn't need to (and
 shouldn't) explicitly call init() as it's done for them. They can even
 override init() if they want to but must first call super.init() prior
 to doing any of their own initialization work.
 
 In fact this is the exact pattern of initialization that you have
 implemented for wicket's WebApplication. It seems to make sense to me
 that the same pattern would apply to WebPage.
 
 juergen are you reading with us?
 
 -igor
 
 
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Re: [Wicket-user] Lifecycle issue with getVariation

2007-03-29 Thread Jonathan Locke



ah, sorry.  this is the code i take it.  just not in response to my original
post (at least on nabble).


Chris Colman wrote:
 
 i'm not sure what i think about this yet.  can you show us the
 exact code modifications and use cases you have coded up?
 (boiled down to the important parts, if possible) 
 
 Ok, here's the changed bits you requested. Only 3 Java classes need
 minor changes in the framework:
 
 [I added the deferred init to WebPage but a more simpler approach is to
 add the auto init mechanism to Page to avoid the need for casting.
 Option: You could make the mechanism switchable via an application
 setting so that existing code and test cases work in the same way as
 they do now]
 
 RequestCycle.java
 
   public final void setResponsePage(final Page page)
   {
   // CJC 20070329 - added to auto init WebPages to allow
   // getVariation to work properly
   if ( page instanceof WebPage )
   {
   WebPage webPage = (WebPage)page;
   if ( !webPage.isInitialized() )
   webPage.commonInit();
   }
   
   IRequestTarget target = new PageRequestTarget(page);
   setRequestTarget(target);
   }
 
 WebPage.java
 
   // CJC 20070329 - defer commonInit till after complete
 construction
   /** true when the page has been initialized */
   private boolean initialized = false;
 
   /**
* Returns the initialization state. This is used by other parts
 of
* the framework that will automatically call commonInit on
* uninitialized pages
*/
   public boolean isInitialized()
   {
   return initialized;
   }
 
   public void commonInit()
   {
   // CJC 20070329 - defer commonInit till after
   // complete construction
   initialized = true;
 
   ...
   }
 
   +remove the commonInit calls from WebPage constructors
 
 BookmarkablePageRequestTarget.java
 
   private final Page getPage(RequestCycle requestCycle)
   {
   if (page == null  pageClass != null 
   !requestCycle.getRedirect())
   {
   page = newPage(pageClass, requestCycle);
   
   // CJC 20070329 - added to auto init WebPages to
 allow
   // getVariation to work properly
   if ( page instanceof WebPage )
   {
   WebPage webPage = (WebPage)page;
   if ( !webPage.isInitialized() )
   webPage.commonInit();
   }
   }
   return page;
   }
 
 In terms of use cases they're basically our own app plus all the wicket
 test cases. Three test cases required initialization to be performed in
 an overridden commonInit instead of the constructor to work - which is
 standard for most OO frameworks of any kind, not just UI frameworks
 (MFC::createWindow, OWL::SetupWindow) - you just don't want to be
 playing with partially constructed objects.
 
 also, it would be good if you could explain how this solves any
 problems
 other than getVariation().
 
 getVariation is the biggy at the moment for me but I'm sure as more
 users adopt wicket they'll come up with similar scenarios that highlight
 this problem. It's feasible to come up with scenarios that don't even
 involve framework features but rather, a user's own WebPage derived
 class hierarchy.
 
 This example will cause problems doing initialization in the
 constructors:
 
 class BasePage
 {
   public BasePage(params)
   {
   addTitleComponent();
   }
 
   public void addTitleComponent()
   {
   calls getTitle() to get text of the title and creates a
 Label
   }
 
   public abstract String getTitle();
 }
 
 class MyPage extends BasePage
 {
   String title = null;
 
   public MyPage(params)
   {
   title = use params to lookup a particular 
   object in database andget its name
   }
 
   // !! this gets called before the constructor has initialized
 title !!
   public String getTitle() { return title; }
 }
 
 I trust that's informative enough to help you guys make a good decision
 on how to deal with this but if you need anything else please let me
 know.
 
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Re: [Wicket-user] Lifecycle issue with getVariation

2007-03-29 Thread Jonathan Locke



Okay, here's my opinion:

People have been using Wicket for years now and this is the first bug
of this type I have heard of.  I am very reluctant attempt any sort of
generic framework-level fix to the semantics of Java object construction
(regardless of how anyone feels about the practices defined by the JLS).
Java objects construct the way that they do and we use Java object
constructors because we like that simplicity.  Your bug is reported and
will be fixed.  Further, any other problem like this (and again, I've not
heard of any) can be worked around using onAttach().


Chris Colman wrote:
 
 I have a constructor that takes parameters and then uses the parameters
 to set up a variable that is used in getVariation().
 
 There appears to be a lifecycle issue here because getVariation is being
 called from within a base class constructor - before my constructor's
 code below the super(parameters) has had a chance to get called.
 Consequently getVariation() is called before the variable has been
 initialized causing a NPE.
 
 Here's the stack dump:
 
  at com.MyPage.getVariation(MyPage.java:66)
  at wicket.Component.getStyle(Component.java:1207)
  at wicket.markup.MarkupCache.markupKey(MarkupCache.java:371)
  at wicket.markup.MarkupCache.getMarkup(MarkupCache.java:166)
  at wicket.markup.MarkupCache.getMarkupStream(MarkupCache.java:106)
  at
 wicket.MarkupContainer.getAssociatedMarkupStream(MarkupContainer.java:82
 7)
  at wicket.markup.html.WebPage.commonInit(WebPage.java:235)
  at wicket.markup.html.WebPage.init(WebPage.java:120)
  at com.sas.av.ui.wicket.templates.BasePage.init(BasePage.java:66)
  at com.MyPage.init(MyPage.java:83)
 
 Often in these cases it serves the framework users well if the basic
 construction takes place first and then, only after returning from the
 instantiation, further initialization is performed - initialization that
 might only work properly after all constructors have been fully
 executed.
 
 Currently it appears possible for the getStyle and getVariation methods
 to be invoked while a page is only semi constructed (ie., the
 constructor stack has not unwound as shown above).
 
 Is there a current workaround for this or is it possible to readjust the
 Wicket lifecycle model slightly to avoid this problem?
 
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Re: [Wicket-user] Lifecycle issue with getVariation

2007-03-28 Thread Jonathan Locke



i'm not sure what i think about this yet.  can you show us the
exact code modifications and use cases you have coded up?
(boiled down to the important parts, if possible)  also, it would 
be good if you could explain how this solves any problems 
other than getVariation().


Chris Colman wrote:
 
 Just looking at the source code for WebPage it looks like a very minor
 change to achieve a more flexible lifecycle initialization phase.
 
 
 All the WebPage constructors call
 
   private void commonInit()
 
 As you will no doubt understand this is being called before
 construction/instantiation has properly completed - which has serious
 consequences if any methods are called that rely on constructor
 initialization that has not yet occurred (eg., getVariation that returns
 a variation based on the constructor's parameter values).
 
 I think the following changes would fix this problem and allow
 getVariation() to work properly when it's implementation relies on
 parameters passed into the constructor:
 
 1. Remove all calls to commonInit() from the WebPage constructors.
 2. Make commonInit public
 3. Change the DefaultPageFactory to explicitly call commonInit on any
 new page that it instantiates.
 
 
 These changes, to my thinking, are quite simple with low to no ripple
 effect and they allow wicket users to avoid entry into the 'world of
 pain' that is 'partially constructed objects'.
 
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Re: [Wicket-user] How to catch the error in custome error page?

2007-03-23 Thread Jonathan Locke


Yes.  For others who don't want to log the exception, you can show 
error pages for different categories of exceptions by setting these
methods on ApplicationSettings:

 - getAccessDeniedPage()
 - getInternalErrorPage()
 - getPageExpiredPage()

Unfortunately, you don't get the exception object there.  

Perhaps in some near-future version, we can have an error 
page factory.  I think that would be good because then you 
don't need to get involved in the guts of Wicket to do something
pretty simple.  How about this:

public interface IErrorPageFactory
{
Page newAccessDeniedPage(AuthorizationException e);
Page newPageExpiredPage(PageExpiredException e);
Page newExceptionErrorPage(RuntimeException e);
Page newInternalErrorPage(RuntimeException e);
}

then make a default implementation so people can override just the
pages they want to customize:

public class AbstractErrorPageFactory implements IErrorPageFactory { ...
}

This would give users the ability to customize without the need to know
details like what's in 

AbstractRequestCycleProcessor.respond(RuntimeException e, RequestCycle
requestCycle)

most of which really is necessary to do handle exceptions right.  

Maybe some developer on the core team would like to handle this?  
If so, we could remove a number of annoyingly non-general settings
from ApplicationSettings in favor of just getErrorPageFactory()


Jean-Baptiste Quenot-3 wrote:
 
 * tooy li(Gmail):
 
 I want to  create a custom page  to catch all error  , log these
 into db  and only show some  clear infomation into user.  i know
 set  something in  the application,  but how  can i  catch these
 error in my page?
 
 So you want to handle the exception yourself?  Try this in your
 Application:
 
 @Override
 protected IRequestCycleProcessor newRequestCycleProcessor() {
   return new WebRequestCycleProcessor() {
   @Override
   protected Page onRuntimeException(Page page, RuntimeException 
 e) {
   logErrorInDataBase(e);
   return new MyExceptionPage();
   }
   };
 }
 
 You don't indicate which version of Wicket you're using, I assume
 the latest in this code snippet.
 -- 
  Jean-Baptiste Quenot
 aka  John Banana   Qwerty
 http://caraldi.com/jbq/
 
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Re: [Wicket-user] colored labels in validation error

2007-03-18 Thread Jonathan Locke



There's Martijns way but there are also some related components like
FormComponentFeedbackBorder/Indicator or igor's FieldBorder (or it's
something like that).


Wouter De Vaal wrote:
 
 Hi,
 
 Is there a wicket standard way to have input label have a special
 style (e.g. color: red) when the corresponding input field validation
 fails?
 
 Thanx,
 Wouter
 
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Re: [Wicket-user] Joost uses Wicket

2007-03-18 Thread Jonathan Locke



Someone should really make an example or even a reusable class
like that.  What you're suggesting is very non-obvious to a newbie.


Jean-Baptiste Quenot-3 wrote:
 
 * ZedroS Schwart:
 
 Regarding static  content, is it such  a big issue to  have some
 wicket html pages with empty classes behind ?
 
 You don't  even need  empty classes to  serve static  content with
 Wicket, just use a custom IRequestTargetUrlCodingStrategy together
 with a  ResourceStreamRequestTarget to  serve the content  from an
 IResourceStream (can be a static file).
 -- 
  Jean-Baptiste Quenot
 aka  John Banana   Qwerty
 http://caraldi.com/jbq/
 
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Re: [Wicket-user] Hibernate/Spring and Wicket architecture request for validation (was Wicket's questions)

2007-03-17 Thread Jonathan Locke

Non-detachable models probably are not the best way to work
with a database. And since they can't be detached, your whole
model stays in the session the whole time, while the detachable
ones shrink to a few bytes (object header + id + transient slot)
when they are detached by Wicket after each request.

ZedroS Schwart wrote:

Thanks Jonathan for the tip.

I've now read on the wiki about it and this detachable compound
property model seems the best way to do (or even the Detachable
BoundCompoundPropertyModel !) .

I've just a question (a newbe one as usual lol) : how does wicket work
with non detachable models ? They're kept during the whole user
session even if they're updated every time there is a new access to
the page to whom they're linked ?

Thanks again
ZedroiS

On 3/17/07, Jonathan Locke [EMAIL PROTECTED] wrote:

you don't have to choose. you can wrap a compoundpropertymodel around a
detachablemodel and get both access convenience and detachability.
wicket
models are much more flexible and powerful than most people realize at
first.

ZedroS Schwart wrote:

Thanks for your comment Igor, I really appreciate.

Just some questions : do you use CompoundPropertyModel or the
detachable
one ?

For the form beans, the user profile page I'm working on really proves
you right. I was willing at first to avoid yet another bean but in
fact it seems indeed to be the easiest way.

For the optimistic locking, I've read

http://www.hibernate.org/hib_docs/reference/en/html/transactions.html#transactions-optimistic
Is it what you had in mind ?

Thanks again

ZedroS

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Re: [Wicket-user] Tapestry - Wicket | Action Service

2007-03-16 Thread Jonathan Locke



Wicket == component-oriented manipulation of markup.  

As such, Wicket is primarily a UI framework, not a framework for creating
web services.  Igor is right that this idea that Wicket should handle any
kind of request over HTTP is scope creep.  That job is for some other
framework.


Robert ... wrote:
 
 Hi!
 
 A Tapestry service basically has a
 public void service(RequestCycle) method.
 Something like a PageService would do something like
 cycle.activate(cycleparam[0])
 
 Now I understand that I don't usually need a PageService. The onClick for
 Link components are much easier to use. However what if I don't have a
 component and
 there is some javascript that wants to change the page? I'll try to write
 about this more in the other replies in this thread.
 
 Robert
 
 
 On 3/15/07, Igor Vaynberg [EMAIL PROTECTED] wrote:

 you wanted to know how to have an equivalent of a tapestry service. if i
 remember correctly tapestry services return things. like an asset service
 that streams images.

 if all you want is a callback then you can use urlFor methods to build
 such a callback url. see, for example, how Link component does it.

 wicket is event driven. tapestry is also, but not to the same degree. in
 wicket you rarely need to build urls yourself because we provide
 components
 that do this for you.

 for example Link has an onClick() method and a Button has onSubmit().
 wicket takes care of wiring these methods with urls it generates.

 -igor


 On 3/15/07, Robert . [EMAIL PROTECTED] wrote:
 
  Really? A resource?
  But I have nothing to return from my service resource.
 
  Robert
 
 
  On 3/15/07, Igor Vaynberg  [EMAIL PROTECTED] wrote:
  
   wicket's equivalent of a service is a shared resource. you can
   register your own shared resources through your webapplication
 subclass.
  
   as far as selecting pages via javascript:
  
   wicket doesnt really have a page service. urls for pages are resolved
   internally. if you want a stable entry point into the page then you
 should
   mount it, also via the webapplication subclass, and then the
 javascript can
   redirect to the mounted url.
  
   -igor
  
  
   On 3/15/07, Robert .  [EMAIL PROTECTED] wrote:
  
Hi,
   
I have been examining how I can convert a web application product
from Tapestry 3 to Wicket, and trying to adapt
myself to the Wicket way of thinking about web flow.
   
One part that I just can't seem to figure out from reading Pro
Wicket and browsing through the apidocs is how to
make something like Tapestry services.
   
For example I have an action service in Tapestry that let's me send
an action command, including additonal parameters,
to the service by using javascript. I have such a service for both
normal requests and XMLHTTP requests. But thinking
about this further makes me realize I don't even know how to make
something like a PageService where the page is determined by
 javascript.
   
I feel like I am missing something.
   
Robert
   
   
   
   
   
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Re: [Wicket-user] Tapestry - Wicket | Action Service

2007-03-16 Thread Jonathan Locke



yes, state is mainly kept in server side components by design (programming
model and security are two good reasons for this).  however, state can also
reside in url parameters (bookmarkable page links) if you explicitly put it
there.  and then of course there's javascript / ajax.


Robert ... wrote:
 
 
 Something else related to this is if I can have a Link where I can add
 parameters to in javascript.
 Looking at Wicket I get the feeling that the state is purely something
 that
 is kept in pages and components
 with its associated models. There does not seem to be room for the client
 browser to keep any state.
 I actually have a whole model-view-controller system in javascript for
 certain complicated situations.
 
 I tried to look at how a Tree component works, and see if I could learn
 something by looking at how it's called.
 But that part was just magic to me :)
 
 Robert
 
 

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Re: [Wicket-user] Tapestry - Wicket | Action Service

2007-03-16 Thread Jonathan Locke



yes.  and that design was not accidental.  in a framework, making 
some things harder is as important as making other things easier.  

for example, we could have provided easy access to the HttpSession.
there are people who do need access to that.  but it gives people the
wrong idea about how to do things in wicket.  

more is not necessarily better.  and i think that's true here.  more 
support for client state and/or better support for generic web services
would actually move people in the wrong direction in terms of wicket's
stated goal to provide component-oriented manipulation of markup.


Martijn Dashorst wrote:
 
 This is one of the area's where Wicket wasn't designed for. It is
 possible to accomplish, but not as elegantly as using components.
 
 Martijn
 
 On 3/16/07, Robert . [EMAIL PROTECTED] wrote:
 I tried to look at those listeners. If I understand correctly you always
 need to be a component to be a listener.
 Each listener interface must have 1 method with 0 parameters. So it means
 all state must be kept in the component.
 You cannot pass any parameters to it? So in the case of a PageLink you
 must
 know which page to render, before
 the link has been clicked?

 I'm just trying to sort things out in my head.
 I would like to know more about how Wicket knows which ILinkListener to
 call
 when a link is clicked. I found the apidocs
 to be rather abstract about listeners. It felt like you already had to
 know
 how they work before you can understand the docs.

 Please don't take any off this as criticism against Wicket. I'm sure it
 is a
 great project. And I will be using it in the future.
 I'm just not sure if I should convert this project from Tapestry to
 Wicket.
 I am beginning to think that it's not a good idea.



 On 3/15/07, Jonathan Locke [EMAIL PROTECTED] wrote:
 
 
  yes.  that and the ability to create new listeners.  there is nothing
  special about the listeners that wicket pre-registers to handle various
  kinds of requests such as resource requests or link clicks (although
 you
  should definitely prefer the already existing event listeners!).  in
 fact,
  below is the code in init that registers all the service listeners in
  wicket
  revealing that you can create your own if you're doing something
 special
  that wicket does not (yet) support.
 
  /**
   * @see wicket.IInitializer#init(wicket.Application)
   */
  public void init(Application application)
  {
  // Register listener interfaces explicitly (even though
 they implicitly
  // register when loaded) because deserialization of an
 object that
  // implements an interface does not load the interfaces
 it
 implements!
  IBehaviorListener.INTERFACE.register ();
 
 IUnversionedBehaviorListener.INTERFACE.register();
  IFormSubmitListener.INTERFACE.register();
  ILinkListener.INTERFACE.register();
  IOnChangeListener.INTERFACE.register ();
  IRedirectListener.INTERFACE.register();
  IResourceListener.INTERFACE.register();
  }
 
  public interface ILinkListener extends IRequestListener
  {
  /** Listener interface */
  public static final RequestListenerInterface INTERFACE = new
  RequestListenerInterface(
  ILinkListener.class);
 
  /**
   * Called when a link is clicked.
   */
  void onLinkClicked();
  }
 
 
  igor.vaynberg wrote:
  
   wicket's equivalent of a service is a shared resource. you can
 register
   your
   own shared resources through your webapplication subclass.
  
   as far as selecting pages via javascript:
  
   wicket doesnt really have a page service. urls for pages are resolved
   internally. if you want a stable entry point into the page then you
 should
   mount it, also via the webapplication subclass, and then the
 javascript
   can
   redirect to the mounted url.
  
   -igor
  
  
   On 3/15/07, Robert .  [EMAIL PROTECTED] wrote:
  
   Hi,
  
   I have been examining how I can convert a web application product
 from
   Tapestry 3 to Wicket, and trying to adapt
   myself to the Wicket way of thinking about web flow.
  
   One part that I just can't seem to figure out from reading Pro
 Wicket
 and
   browsing through the apidocs is how to
   make something like Tapestry services.
  
   For example I have an action service in Tapestry that let's me send
 an
   action command, including additonal parameters,
   to the service by using javascript. I have such a service for both
 normal
   requests and XMLHTTP requests. But thinking
   about this further makes me realize I don't even know how to make
   something like a PageService where the page is determined by
 javascript.
  
   I feel like I am missing something.
  
   Robert
  
  
  
  
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