RE: WicketStuff artifacts naming strategy

[Wilhelmsen Tor Iver]

 - jasperreports-1.4.16.jar
 - jasperreports-3.7.2.jar

 The first one is from WicketStuff, but still, it is confusing to see this.

This one of my biggest peeves with Maven: It has this concept of a groupId to 
namespace artifacts in the repository, but this is of no consequence when the 
jar files appear in the classpath, since the groupId namespace is not part of 
the actual file name.

A workaround could be to prefix the jar file name with the groupId namespace 
somehow.

- Tor Iver

Re: WicketStuff artifacts naming strategy

[Martin Grigorov]

In the most parent wicketstuff pom.xml:

build
finalName${project.groupId}-${project.artifactId}-${project.version}.jar/finalName


On Fri, Mar 25, 2011 at 9:31 AM, Wilhelmsen Tor Iver toriv...@arrive.nowrote:

  - jasperreports-1.4.16.jar
  - jasperreports-3.7.2.jar

  The first one is from WicketStuff, but still, it is confusing to see
 this.

 This one of my biggest peeves with Maven: It has this concept of a
 groupId to namespace artifacts in the repository, but this is of no
 consequence when the jar files appear in the classpath, since the groupId
 namespace is not part of the actual file name.

 A workaround could be to prefix the jar file name with the groupId
 namespace somehow.

 - Tor Iver




-- 
Martin Grigorov
jWeekend
Training, Consulting, Development
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Re: IDE / Server Support

[Peter Karich]

 take a look at:

http://stackoverflow.com/questions/5373522/is-jrebel-ever-used-in-production-environments-what-can-it-reload-on-the-jvm

http://stackoverflow.com/questions/2844135/which-java-web-frameworks-provide-hot-reload

Regards,
Peter.

 Hi,

 How do you get fast deployment in development with large Wicket EJB
 applications?

 Wicket pages are ordinary class files that do not always seem to have
 special redeployment support like JSP files or HTML files.

 I have an EJB 3.1 app deployed on GlassFish 3.1. Web pages in the web
 directory deploy automatically in milliseconds, but whenever I save a
 Java class file, deploy on save deploys the whole application.

 This is not a big deal with hello world apps, but it hurts badly
 otherwise. As an example I tried the Wicket example application with
 hundreds of class files which takes more than half a minute to deploy
 on fast computers, and during that time, the IDE freezes.

 I thought that a decent servlet container should be able to detect
 single class file changes and hot-deploy them individually. But I
 might be wrong. The NetBeans folks think otherwise and refer me to the
 GlassFish server docs.

 I don't care so much about their view because what matters to me is
 the fact that - say a PHP developer - just saves his files and hits
 the reload button, and that is what I try to get, too. Otherwise I
 feel I am fighting an uphill battle.

 Any thoughts are appreciated.

 Bernard

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Re: Best way to periodically refresh an inmethod DataGrid?

[Martin Grigorov]

If you update the just the selected row then the selection will be lost.
You may try with some JavaScript gymnastics to save the selection and
restore it later.
Use AjaxRequestTarget.prependJavascript() for the saving code and
.appendJavascript() for the restoring code.

The JavaScript to deal with selection is different for the different
browsers, so better find a JS library that does it for you.

Good luck!

On Thu, Mar 24, 2011 at 11:38 PM, Coleman, Chris 
chris.cole...@thalesgroup.com.au wrote:

 We've got a wicket app with an inmethod DataGrid and it displays fine and
 we use an AjaxSelfUpdatingTimerBehaviour to update the grid every 5 seconds.
 That part works fine - as data changes in the database the changes are
 reflected in the table in the browser

 However, if we select an item the selection dissappears when the very next
 refresh occurs. How do we refresh the DataGrid in such a way that it
 remembers its selected item after a refresh?




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Re: Navigation and Adding Panels dynamically.

[Martin Grigorov]

See Wizard component in wicket-extensions.
You'll need custom logic to check whether the previous/next wizard step
should be shown to the current user depending on its privileges.

On Fri, Mar 25, 2011 at 1:57 AM, Mansour Al Akeel mansour.alak...@gmail.com
 wrote:

 I do have the need to implement different screens. Each screen is a
 Panel that will be displayed when requested from the screens menu.

 The screen menu should display the items depending on the functionality
 the user has access to.

 Can some one point me to an article or a tutorial with similar
 requirements ?

 I trully appreciate any help.




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Re: WicketStuff artifacts naming strategy

[Michael O'Cleirigh]

I'm planning on doing point releases this weekend for 1.4.16.1 and 
1.5-rc2.1 and I'll make sure the artifacts generate using the longer name.


Thanks,

Mike



In the most parent wicketstuff pom.xml:

build
finalName${project.groupId}-${project.artifactId}-${project.version}.jar/finalName


On Fri, Mar 25, 2011 at 9:31 AM, Wilhelmsen Tor Ivertoriv...@arrive.nowrote:


- jasperreports-1.4.16.jar
- jasperreports-3.7.2.jar
The first one is from WicketStuff, but still, it is confusing to see

this.

This one of my biggest peeves with Maven: It has this concept of a
groupId to namespace artifacts in the repository, but this is of no
consequence when the jar files appear in the classpath, since the groupId
namespace is not part of the actual file name.

A workaround could be to prefix the jar file name with the groupId
namespace somehow.

- Tor Iver







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Interaction betwen IAjaxRegionMarkupIdProvider, renderPlaceholderTag and visibility

[Paul Jackson]

Hi,

 

I've just discovered what I think is a bug with
IAjaxRegionMarkupIdProvider. We are using it on a Behavior that provides
a border to form components (label, mandatory marker, etc), which for
the most part works great.

 

We have encountered a problem when toggling the visibility of a form
component with this behavior via ajax. 

 

The component is first sent out visible and the markup is all correct.

 

A change elsewhere on the page causes the component to be set to not
visible and redrawn via ajax. The ajax response contains a tag with a
markupid generated via renderPlaceholderTag. This does not take into
account the  IAjaxRegionMarkupIdProvider behaviour.

 

Another change happens on the page causing the component to become
visible, and the ajax replace can't happen because the component with
the correct markupId is not present.

 

I think the problem is that renderPlaceholderTag should be aware of
IAjaxRegionMarkupIdProvider behaviours on the component when creating
the markupid. Should I raise a issue for this?

 

Cheers,

Paul

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Re: Interaction betwen IAjaxRegionMarkupIdProvider, renderPlaceholderTag and visibility

[Martin Grigorov]

It sounds like bug, yes.
I'm not sure how easy is to support it, though.
renderPlaceholderTag() will need to iterate over all ajax behaviors and
check whether they have region...

Create a ticket with a quickstart and we'll see what can be made.
Thanks!

On Fri, Mar 25, 2011 at 1:31 PM, Paul Jackson paul.jack...@cdl.co.ukwrote:

 Hi,



 I've just discovered what I think is a bug with
 IAjaxRegionMarkupIdProvider. We are using it on a Behavior that provides
 a border to form components (label, mandatory marker, etc), which for
 the most part works great.



 We have encountered a problem when toggling the visibility of a form
 component with this behavior via ajax.



 The component is first sent out visible and the markup is all correct.



 A change elsewhere on the page causes the component to be set to not
 visible and redrawn via ajax. The ajax response contains a tag with a
 markupid generated via renderPlaceholderTag. This does not take into
 account the  IAjaxRegionMarkupIdProvider behaviour.



 Another change happens on the page causing the component to become
 visible, and the ajax replace can't happen because the component with
 the correct markupId is not present.



 I think the problem is that renderPlaceholderTag should be aware of
 IAjaxRegionMarkupIdProvider behaviours on the component when creating
 the markupid. Should I raise a issue for this?



 Cheers,

 Paul

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 email?br
 br
 This email is intended only for the person(s) named above and may contain
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 destroy and permanently delete any copy in your possession and contact us on
 +44 (0) 161 480 4420. The information in this email is copyright copy;
 CDL Group Holdings Limited. We cannot accept any liability for any loss or
 damage sustained as a result of software viruses. It is your responsibility
 to carry out such virus checking as is necessary before opening any
 attachment.br
 Cheshire Datasystems Limited uses software which automatically screens
 incoming emails for inappropriate content and attachments. If the software
 identifies such content or attachment, the email will be forwarded to our
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Re: PackageResourceReference, MetaInfStaticResourceReference and timestamps

[MZemeck]

Hi,

I made a new test (serving a png and a js) with current trunk and the gap 
is
much smaller now: tomcat is 25% faster on average.

Attila

Attila can you elaborate on your tests?  Are you comparing the difference 
between using a resource reference (js) and image component (png) in 
wicket vs linking straight the to the files in html?  If so, what 
relevance does whether the static files are in META-INF or WEB-INF have? 
Not that much because if I am correct the extra overhead is introduced by 
having wicket process the resource and spit out the markup...



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Re: Choice of Resource for my Image component

[Ian Marshall]

1.  I changed the image component from Image to NonCachingImage. This seems
to have eliminated my issue of images being shown which were a
previously-shown image instead of the correct one.

2.  The model which I pass to my NonCachingImage is descended from
LoadableDetachableModel. This model class's load() method returned null if
there was no image to display. I believe that this is the cause of the
exception which I was getting. If there is no image, load() now returns

  new ByteArrayResource(null, new byte[0]);

instead. I have yet to see the exception since this change.

3.  All I need to do now is find out why my use of a NonCachingImage
together with my descended LoadableDetachableModel in the form of my web
page still results in huge session size (1MB), which is forbidden in Google
App Engine.

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setObject with invisible panel

[Jered Myers]

I have a form with a section that the user can show or hide via an 
AjaxLink.  The AjaxLink is hiding and showing using 
Component.isVisible(boolean).  When the user expands the section of the 
form, enters data, collapses the section of the form, and then saves, I 
lose the edits the user makes.  Is there a way to keep the edits without 
having to change my AjaxLink to just manipulate the display style 
attribute?  The hide/show section of the form  starts hidden so it 
doesn't need to load from the DB until the LoadableDetachableModel 
attaches and I would lose that if I only manipulate the style attribute.


Jered Myers



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Trouble with DropDownChoice

[Jim Goodwin]

I'm trying to follow the example in the Javadoc for DropDownChoice
which says:


Java:

  List SITES = Arrays.asList(new String[] { The Server Side, Java Lobby, 
Java.Net });

  // Add a dropdown choice component that uses Input's 'site' property to 
designate the
  // current selection, and that uses the SITES list for the available options.
  // Note that when the selection is null, Wicket will lookup a localized 
string to
  // represent this null with key: id + '.null'. In this case, this is 
'site.null'
  // which can be found in DropDownChoicePage.properties

  form.add(new DropDownChoice(site, SITES));
  
HTML:

select wicket:id=site
optionsite 1/option
optionsite 2/option
/select

 I follow this quite closely. The code is inside a form:


ListString recCapNames = new ArrayListString();
for (Capability cap : recognizedCaps)
recCapNames.add(cap.toString());

final DropDownChoice permissionDropDown = new DropDownChoice(
permissionDropdown, recCapNames);
add(permissionDropDown);



select wicket:id=permissionDropdown
optionP1/option
optionP2/option
/select



The page renders fine. The dropdown shows the right elements in the list 
when I pull it down,
and allows me to select one, etc. But when I hit any button on the form  
it pukes,

complaining about trying to setModelObject on a null model.

(I have several buttons on the form, only one of which is related to the 
DropDownChoice,
and they all fail the same way. Their onSubmit() methods never get 
reached: some sort of
general process of form-handling is run first, and that's where the 
exception happens.)


Stack dump below. Wicket 1.5 RC2.

Any ideas?

Thanks in advance
Jim

Stackdump:

Root cause:

java.lang.IllegalStateException: Attempt to set model object on null 
model of component: 
AdministerGroupForm:permissionspanel:permissionpanelform:permissionDropdown
 at 
org.apache.wicket.Component.setDefaultModelObject(Component.java:3006)
 at 
org.apache.wicket.markup.html.form.FormComponent.updateModel(FormComponent.java:1038)
 at 
org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:221)
 at 
org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:192)
 at 
org.apache.wicket.util.visit.Visits.visitPostOrderHelper(Visits.java:274)
 at 
org.apache.wicket.util.visit.Visits.visitPostOrderHelper(Visits.java:263)

 at org.apache.wicket.util.visit.Visits.visitPostOrder(Visits.java:246)
 at 
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrder(FormComponent.java:384)
 at 
org.apache.wicket.markup.html.form.Form.internalUpdateFormComponentModels(Form.java:1669)
 at 
org.apache.wicket.markup.html.form.Form.updateFormComponentModels(Form.java:1634)

 at org.apache.wicket.markup.html.form.Form.process(Form.java:807)
 at 
org.apache.wicket.markup.html.form.StatelessForm.process(StatelessForm.java:61)
 at 
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:743)
 at 
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:685)

 at java.lang.reflect.Method.invoke(Unknown Source)
 at 
org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:259)
 at 
org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:215)
 at 
org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:171)
 at 
org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:157)
 at 
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:706)
 at 
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
 at 
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
 at 
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253)
 at 
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:138)
 at 
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194)
 at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1323)
 at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:474)
 at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
 at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:517)
 at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
 at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:935)
 at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:404)
 at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:184)

Choice of Resource for my Image component

[Ian Marshall]

Hello Jim,

Could I ask you to post this in a separate topic? This one is for my choice
of resource for my Image component.

Cheers,

Ian

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Apache Wicket Cookbook Published!

[Igor Vaynberg]

For the past nine months I have been quietly working on a book about
Wicket. Unlike other books on the market this one does not attempt to
teach you Wicket from the ground up. Instead, it is for developers who
already know the basics and want to learn how to implement some of the
more advanced use cases. Essentially, it contains recipes that show
the reader how to implement solutions to some of, what I think are,
the most commonly asked questions and stumbling blocks. This morning I
was informed that the book has been published! You can read more about
it and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more
details below...

[1] https://www.packtpub.com/apache-wicket-cookbook/book

## Description ##

Apache Wicket is one of the most famous Java web application
frameworks. Wicket simplifies web development and makes it fun. Are
you bored of going through countless pages of theory to find out how
to get your web development done? With this book in hand, you don't
need to go through hundreds of pages to figure out how you will
actually build a web application. You will get practical solutions to
your common everyday development tasks to pace up your development
activities.

Apache Wicket Cookbook provides you with information that gets your
problems solved quickly without beating around the bush. This book is
perfect for you if you are ready to take the next step from tutorials
and step into the practical world. It will take you beyond the basics
of using Apache Wicket and show you how to leverage Wicket's advanced
features to create simpler and more maintainable solutions to what at
first may seem complex problems.

You will learn how to integrate with client-side technologies such as
JavaScript libraries or Flash components, which will help you to build
your application faster. You will discover how to use Wicket paradigms
to factor out commonly used code into custom Components, which will
reduce the maintenance cost of your application, and how to leverage
the existing Wicket Components to make your own code simpler.

A straightforward Cookbook with highly focused practical recipes to
make your web application development easier with the Wicket web
framework

## What you will learn from this book ##

* Leverage Wicket to implement a wide variety of both simple and
advanced use cases in a narrative that gets straight to the point
* Make forms work in the crazy world of the Web by learning the ways
of Wicket's form processing
* Simplify localizing your Wicket applications
* Take the boring out of your forms by discovering how to improve the
user experience while simplifying your code at the same time
* Leverage the built-in Table component to make displaying tabular data a snap
* Think Wicket's Borders are not very useful? Learn to use them in
unexpected places to simplify things
* See how to integrate with Flash components and create interactive
charts at the same time
* Web 1.0 too boring? Learn how to tame Wicket's AJAX support and
bring your application into Web 2.0
* Simplify your security code by learning various security techniques
* An application cannot be built with Wicket alone; see how to make it
play nice with other frameworks

## Approach ##

This is a hands-on practical guide to a large variety of topics and
use cases. This book tries to use real-world examples when possible,
but is not afraid to come up with a contrived pretext if it makes
explaining the problem simpler. Unlike a lot of other books, this one
does not try to maintain a continuous theme from chapter to chapter,
such as demonstrating solutions on the same fictional application;
doing so would be almost impossible given the wide variety of recipes
presented here. Instead, this book concentrates on focused problems
users are likely to encounter and shows clear solutions in a
step-by-step manner. This book tries to teach by example and is not
afraid to show a lot of code because, after all, it is for coders.

## Who this book is written for ##

This book is for current users of the Apache Wicket framework; it is
not an introduction to Wicket that will bore you with tons of theory.
You are expected to have built or maintained a simple Wicket
application in the past and to be looking to learn new and better ways
of using Wicket. If you are ready to take your Wicket skills to the
next level this book is for you.

Cheers, and I hope you enjoy the book!
-Igor

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RE: Apache Wicket Cookbook Published!

[Brown, Berlin [GCG-PFS]]

Congrats.

I trust Igor 

-Original Message-
From: Igor Vaynberg [mailto:igor.vaynb...@gmail.com] 
Sent: Friday, March 25, 2011 1:44 PM
To: users@wicket.apache.org; d...@wicket.apache.org;
annou...@wicket.apache.org
Subject: Apache Wicket Cookbook Published!

For the past nine months I have been quietly working on a book about
Wicket. Unlike other books on the market this one does not attempt to
teach you Wicket from the ground up. Instead, it is for developers who
already know the basics and want to learn how to implement some of the
more advanced use cases. Essentially, it contains recipes that show the
reader how to implement solutions to some of, what I think are, the most
commonly asked questions and stumbling blocks. This morning I was
informed that the book has been published! You can read more about it
and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more details
below...

[1] https://www.packtpub.com/apache-wicket-cookbook/book

## Description ##

Apache Wicket is one of the most famous Java web application frameworks.
Wicket simplifies web development and makes it fun. Are you bored of
going through countless pages of theory to find out how to get your web
development done? With this book in hand, you don't need to go through
hundreds of pages to figure out how you will actually build a web
application. You will get practical solutions to your common everyday
development tasks to pace up your development activities.

Apache Wicket Cookbook provides you with information that gets your
problems solved quickly without beating around the bush. This book is
perfect for you if you are ready to take the next step from tutorials
and step into the practical world. It will take you beyond the basics of
using Apache Wicket and show you how to leverage Wicket's advanced
features to create simpler and more maintainable solutions to what at
first may seem complex problems.

You will learn how to integrate with client-side technologies such as
JavaScript libraries or Flash components, which will help you to build
your application faster. You will discover how to use Wicket paradigms
to factor out commonly used code into custom Components, which will
reduce the maintenance cost of your application, and how to leverage the
existing Wicket Components to make your own code simpler.

A straightforward Cookbook with highly focused practical recipes to make
your web application development easier with the Wicket web framework

## What you will learn from this book ##

* Leverage Wicket to implement a wide variety of both simple and
advanced use cases in a narrative that gets straight to the point
* Make forms work in the crazy world of the Web by learning the ways of
Wicket's form processing
* Simplify localizing your Wicket applications
* Take the boring out of your forms by discovering how to improve the
user experience while simplifying your code at the same time
* Leverage the built-in Table component to make displaying tabular data
a snap
* Think Wicket's Borders are not very useful? Learn to use them in
unexpected places to simplify things
* See how to integrate with Flash components and create interactive
charts at the same time
* Web 1.0 too boring? Learn how to tame Wicket's AJAX support and bring
your application into Web 2.0
* Simplify your security code by learning various security techniques
* An application cannot be built with Wicket alone; see how to make it
play nice with other frameworks

## Approach ##

This is a hands-on practical guide to a large variety of topics and use
cases. This book tries to use real-world examples when possible, but is
not afraid to come up with a contrived pretext if it makes explaining
the problem simpler. Unlike a lot of other books, this one does not try
to maintain a continuous theme from chapter to chapter, such as
demonstrating solutions on the same fictional application; doing so
would be almost impossible given the wide variety of recipes presented
here. Instead, this book concentrates on focused problems users are
likely to encounter and shows clear solutions in a step-by-step manner.
This book tries to teach by example and is not afraid to show a lot of
code because, after all, it is for coders.

## Who this book is written for ##

This book is for current users of the Apache Wicket framework; it is not
an introduction to Wicket that will bore you with tons of theory.
You are expected to have built or maintained a simple Wicket application
in the past and to be looking to learn new and better ways of using
Wicket. If you are ready to take your Wicket skills to the next level
this book is for you.

Cheers, and I hope you enjoy the book!
-Igor

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Re: Trouble with DropDownChoice

[Jered Myers]

You can create a simple PropertyModel to hold the value your form is 
trying to set.  Here is an example:


public  Pageextends  WebPage {
   private  List letters = Arrays.asList(new  String[] {A,B,C  }));
   public  String  selected =B;

   public  Page() {
 Form form =new  Form(form);
 DropDownChoice choice=new  DropDownChoice(ddc,new  
PropertyModel(this,selected), letters);
   }
}

The example is from: 
https://cwiki.apache.org/WICKET/dropdownchoice-examples.html.  It is 
missing the generics if you are working in 1.4.x, but it demonstrates 
the process well.
The model object here is the selected string.  When the form saves it 
will set the selected string with the value in the drop down.


On 3/25/2011 9:40 AM, Jim Goodwin wrote:

I'm trying to follow the example in the Javadoc for DropDownChoice
which says:


Java:

  List SITES = Arrays.asList(new String[] { The Server Side, Java 
Lobby, Java.Net });


  // Add a dropdown choice component that uses Input's 'site' 
property to designate the
  // current selection, and that uses the SITES list for the 
available options.
  // Note that when the selection is null, Wicket will lookup a 
localized string to
  // represent this null with key: id + '.null'. In this case, this 
is 'site.null'

  // which can be found in DropDownChoicePage.properties

  form.add(new DropDownChoice(site, SITES));
  HTML:
select wicket:id=site
optionsite 1/option
optionsite 2/option
/select

 I follow this quite closely. The code is inside a form:


ListString recCapNames = new ArrayListString();
for (Capability cap : recognizedCaps)
recCapNames.add(cap.toString());

final DropDownChoice permissionDropDown = new 
DropDownChoice(

permissionDropdown, recCapNames);
add(permissionDropDown);



select wicket:id=permissionDropdown
optionP1/option
optionP2/option
/select



The page renders fine. The dropdown shows the right elements in the 
list when I pull it down,
and allows me to select one, etc. But when I hit any button on the 
form  it pukes,

complaining about trying to setModelObject on a null model.

(I have several buttons on the form, only one of which is related to 
the DropDownChoice,
and they all fail the same way. Their onSubmit() methods never get 
reached: some sort of
general process of form-handling is run first, and that's where the 
exception happens.)


Stack dump below. Wicket 1.5 RC2.

Any ideas?

Thanks in advance
Jim

Stackdump:

Root cause:

java.lang.IllegalStateException: Attempt to set model object on null 
model of component: 
AdministerGroupForm:permissionspanel:permissionpanelform:permissionDropdown
 at 
org.apache.wicket.Component.setDefaultModelObject(Component.java:3006)
 at 
org.apache.wicket.markup.html.form.FormComponent.updateModel(FormComponent.java:1038)
 at 
org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:221)
 at 
org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:192)
 at 
org.apache.wicket.util.visit.Visits.visitPostOrderHelper(Visits.java:274)
 at 
org.apache.wicket.util.visit.Visits.visitPostOrderHelper(Visits.java:263)
 at 
org.apache.wicket.util.visit.Visits.visitPostOrder(Visits.java:246)
 at 
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrder(FormComponent.java:384)
 at 
org.apache.wicket.markup.html.form.Form.internalUpdateFormComponentModels(Form.java:1669)
 at 
org.apache.wicket.markup.html.form.Form.updateFormComponentModels(Form.java:1634)

 at org.apache.wicket.markup.html.form.Form.process(Form.java:807)
 at 
org.apache.wicket.markup.html.form.StatelessForm.process(StatelessForm.java:61)
 at 
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:743)
 at 
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:685)

 at java.lang.reflect.Method.invoke(Unknown Source)
 at 
org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:259)
 at 
org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:215)
 at 
org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:171)
 at 
org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:157)
 at 
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:706)
 at 
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63)
 at 
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)
 at 
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253)
 at 
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:138)
 at 

Re: Trouble with DropDownChoice

[Jim Goodwin]

On 3/25/2011 1:54 PM, Jered Myers wrote:
You can create a simple PropertyModel to hold the value your form is 
trying to set.  Here is an example:


public  Pageextends  WebPage {
   private  List letters = Arrays.asList(new  String[] {A,B,C  }));
   public  String  selected =B;

   public  Page() {
 Form form =new  Form(form);
 DropDownChoice choice=new  DropDownChoice(ddc,new  
PropertyModel(this,selected), letters);

   }
}

The example is from: 
https://cwiki.apache.org/WICKET/dropdownchoice-examples.html.  It is 
missing the generics if you are working in 1.4.x, but it demonstrates 
the process well.
The model object here is the selected string.  When the form saves 
it will set the selected string with the value in the drop down.



Ah. I get it. Thank you Jered.

As a side question then, does this mean that the example cited in the
DropDownChoice javadoc does not work? Because it only did:


form.add(new DropDownChoice(site, SITES));

So wouldn't it fail the same way?

/jg

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Re: Navigation and Adding Panels dynamically.

[Mansour Al Akeel]

Thank you Martin,
I had a quick look at extension. I will try a small application with it
soon. However my requirement are a bit more complex, as I need to load
Panels by string. So let's say I have a String called EditUserScreen,
then I need to dynamically load this panel. I am not sure yet if the
wizard extension can do this, but will try it anyway.
If you know something else that can work for these requirements please
advice me.



On Fri Mar 25,2011 12:37 pm, Martin Grigorov wrote:
 See Wizard component in wicket-extensions.
 You'll need custom logic to check whether the previous/next wizard step
 should be shown to the current user depending on its privileges.
 
 On Fri, Mar 25, 2011 at 1:57 AM, Mansour Al Akeel mansour.alak...@gmail.com
  wrote:
 
  I do have the need to implement different screens. Each screen is a
  Panel that will be displayed when requested from the screens menu.
 
  The screen menu should display the items depending on the functionality
  the user has access to.
 
  Can some one point me to an article or a tutorial with similar
  requirements ?
 
  I trully appreciate any help.
 
 
 
 
  -
  To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
  For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 
 
 -- 
 Martin Grigorov
 jWeekend
 Training, Consulting, Development
 http://jWeekend.com http://jweekend.com/

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Re: Trouble with DropDownChoice

[Sven Meier]

Hi,

if you don't provide a model explicitly, a component will try to look up 
one from its parent components.
Most of the time you use a CompoundPropertyModel, in this case the 
example in the javadoc is valid:


form = new Form(form, new CompoundPropertyModel(this));
form.add(new DropDownChoice(selected, letters);

Hope this helps

Sven

On 03/25/2011 08:00 PM, Jim Goodwin wrote:

On 3/25/2011 1:54 PM, Jered Myers wrote:
You can create a simple PropertyModel to hold the value your form is 
trying to set.  Here is an example:


public  Pageextends  WebPage {
   private  List letters = Arrays.asList(new  String[] {A,B,C  
}));

   public  String  selected =B;

   public  Page() {
 Form form =new  Form(form);
 DropDownChoice choice=new  DropDownChoice(ddc,new  
PropertyModel(this,selected), letters);

   }
}

The example is from: 
https://cwiki.apache.org/WICKET/dropdownchoice-examples.html.  It is 
missing the generics if you are working in 1.4.x, but it demonstrates 
the process well.
The model object here is the selected string.  When the form saves 
it will set the selected string with the value in the drop down.



Ah. I get it. Thank you Jered.

As a side question then, does this mean that the example cited in the
DropDownChoice javadoc does not work? Because it only did:


form.add(new DropDownChoice(site, SITES));

So wouldn't it fail the same way?

/jg

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Re: setObject with invisible panel

[Sven Meier]

Hi,

you'll have to send all values to the server via form submit, e.g. by 
using an AjaxSubmitLink.

This will trigger processing of the whole form though.

Sven

On 03/25/2011 06:26 PM, Jered Myers wrote:
I have a form with a section that the user can show or hide via an 
AjaxLink.  The AjaxLink is hiding and showing using 
Component.isVisible(boolean).  When the user expands the section of 
the form, enters data, collapses the section of the form, and then 
saves, I lose the edits the user makes.  Is there a way to keep the 
edits without having to change my AjaxLink to just manipulate the 
display style attribute?  The hide/show section of the form  starts 
hidden so it doesn't need to load from the DB until the 
LoadableDetachableModel attaches and I would lose that if I only 
manipulate the style attribute.


Jered Myers



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Re: Apache Wicket Cookbook Published!

[Pierre Goupil]

Excellent! I'll buy it in a week max!

Are there a lot of complex graphics or is it suitable to read it in a BW
e-book reader in pdf format? Actually, I think I'll buy both format but you
know...

Regards,

Pierre



On Fri, Mar 25, 2011 at 6:52 PM, Brown, Berlin [GCG-PFS] 
berlin.br...@primerica.com wrote:

 Congrats.

 I trust Igor

 -Original Message-
 From: Igor Vaynberg [mailto:igor.vaynb...@gmail.com]
 Sent: Friday, March 25, 2011 1:44 PM
 To: users@wicket.apache.org; d...@wicket.apache.org;
 annou...@wicket.apache.org
 Subject: Apache Wicket Cookbook Published!

 For the past nine months I have been quietly working on a book about
 Wicket. Unlike other books on the market this one does not attempt to
 teach you Wicket from the ground up. Instead, it is for developers who
 already know the basics and want to learn how to implement some of the
 more advanced use cases. Essentially, it contains recipes that show the
 reader how to implement solutions to some of, what I think are, the most
 commonly asked questions and stumbling blocks. This morning I was
 informed that the book has been published! You can read more about it
 and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more details
 below...

 [1] https://www.packtpub.com/apache-wicket-cookbook/book

 ## Description ##

 Apache Wicket is one of the most famous Java web application frameworks.
 Wicket simplifies web development and makes it fun. Are you bored of
 going through countless pages of theory to find out how to get your web
 development done? With this book in hand, you don't need to go through
 hundreds of pages to figure out how you will actually build a web
 application. You will get practical solutions to your common everyday
 development tasks to pace up your development activities.

 Apache Wicket Cookbook provides you with information that gets your
 problems solved quickly without beating around the bush. This book is
 perfect for you if you are ready to take the next step from tutorials
 and step into the practical world. It will take you beyond the basics of
 using Apache Wicket and show you how to leverage Wicket's advanced
 features to create simpler and more maintainable solutions to what at
 first may seem complex problems.

 You will learn how to integrate with client-side technologies such as
 JavaScript libraries or Flash components, which will help you to build
 your application faster. You will discover how to use Wicket paradigms
 to factor out commonly used code into custom Components, which will
 reduce the maintenance cost of your application, and how to leverage the
 existing Wicket Components to make your own code simpler.

 A straightforward Cookbook with highly focused practical recipes to make
 your web application development easier with the Wicket web framework

 ## What you will learn from this book ##

 * Leverage Wicket to implement a wide variety of both simple and
 advanced use cases in a narrative that gets straight to the point
 * Make forms work in the crazy world of the Web by learning the ways of
 Wicket's form processing
 * Simplify localizing your Wicket applications
 * Take the boring out of your forms by discovering how to improve the
 user experience while simplifying your code at the same time
 * Leverage the built-in Table component to make displaying tabular data
 a snap
 * Think Wicket's Borders are not very useful? Learn to use them in
 unexpected places to simplify things
 * See how to integrate with Flash components and create interactive
 charts at the same time
 * Web 1.0 too boring? Learn how to tame Wicket's AJAX support and bring
 your application into Web 2.0
 * Simplify your security code by learning various security techniques
 * An application cannot be built with Wicket alone; see how to make it
 play nice with other frameworks

 ## Approach ##

 This is a hands-on practical guide to a large variety of topics and use
 cases. This book tries to use real-world examples when possible, but is
 not afraid to come up with a contrived pretext if it makes explaining
 the problem simpler. Unlike a lot of other books, this one does not try
 to maintain a continuous theme from chapter to chapter, such as
 demonstrating solutions on the same fictional application; doing so
 would be almost impossible given the wide variety of recipes presented
 here. Instead, this book concentrates on focused problems users are
 likely to encounter and shows clear solutions in a step-by-step manner.
 This book tries to teach by example and is not afraid to show a lot of
 code because, after all, it is for coders.

 ## Who this book is written for ##

 This book is for current users of the Apache Wicket framework; it is not
 an introduction to Wicket that will bore you with tons of theory.
 You are expected to have built or maintained a simple Wicket application
 in the past and to be looking to learn new and better ways of using
 Wicket. If you are ready to take your Wicket skills to the 

StatelessForm redirect

[lovewicket]

Hello, 

I built a stateless website using Bookmarkable pages and links. I have a
base page with a search form (StatelessForm) which all the other pages
(bookmarkable) extend to share this form and some other tabs (Home, Links,
etc). My problem is that if this search box is on AbcPage or XyzPage, on
submit the pageparameters are forwarded to AbcPage first and then redirected
to SearchResultsPage. But, since pageparameters validation fails on
AbcPage/XyzPage, I get an exception and the further redirect gives an error
too. Is there a way to go straight to SearchResultsPage without going
through the current AbcPage? I am using latest wicket distribution
(apache-wicket-1.4.16). I have been trying to figure out this for days, so I
would really appreciate any help! 

HTML --- 

  Search:
  
  
  Advanced Search


Java --- 
final StatelessForm form = new StatelessForm(Search, new
CompoundPropertyModel(fSearch)) 
{ 
@Override 
protected void onSubmit() 
{ 
if(sLogger.isInfoEnabled()) 
{ 
sLogger.info(fSearch.toString()); 
} 
setResponsePage(SearchResultsPage.class,
fSearch.toPageParameters()); 
//setRedirect(false); 
} 
}; 
// Add the search box to the form 
form.add(new TextField(SearchValue)); 
form.add(new BookmarkablePageLink(advancedSearch,
AdvancedSearchPage.class)); 

fParentComponent.add(form); 

Webpage ERROR: 
HTTP Status 404 - 
type Status report 
message 
description The requested resource () is not available. 

Server ERROR: 

2011-03-25 12:53:51.0349 ERROR http-8080-3 index.AbcPage - Exception 
java.lang.NullPointerException 
at index.AbcPage.validateParams(AbcPage.java:258) 
at index.AbcPage.(AbcPage.java:86) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method) 
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
 
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 

at java.lang.reflect.Constructor.newInstance(Constructor.java:513) 
at
org.apache.wicket.session.DefaultPageFactory.createPage(DefaultPageFactory.java:188)
 
at
org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:89)
 
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:306)
 
at
org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:321)
 
at
org.apache.wicket.request.target.component.BookmarkableListenerInterfaceRequestTarget.processEvents(BookmarkableListenerInterfaceRequestTarget.java:126)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
 
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1241) 
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1320) 
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1419) 
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) 

I tried mounting the page and supplying the url in action attribute but that
didn't work either. 

Thank you!

--
View this message in context: 
http://apache-wicket.1842946.n4.nabble.com/StatelessForm-redirect-tp3406282p3406282.html
Sent from the Users forum mailing list archive at Nabble.com.

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Re: Apache Wicket Cookbook Published!

[Igor Vaynberg]

there are some graphics, but most of them are small and should look ok
in a reader. i havent tried it in my kindle yet.

-igor

On Fri, Mar 25, 2011 at 1:00 PM, Pierre Goupil goupilpie...@gmail.com wrote:
 Excellent! I'll buy it in a week max!

 Are there a lot of complex graphics or is it suitable to read it in a BW
 e-book reader in pdf format? Actually, I think I'll buy both format but you
 know...

 Regards,

 Pierre



 On Fri, Mar 25, 2011 at 6:52 PM, Brown, Berlin [GCG-PFS] 
 berlin.br...@primerica.com wrote:

 Congrats.

 I trust Igor

 -Original Message-
 From: Igor Vaynberg [mailto:igor.vaynb...@gmail.com]
 Sent: Friday, March 25, 2011 1:44 PM
 To: users@wicket.apache.org; d...@wicket.apache.org;
 annou...@wicket.apache.org
 Subject: Apache Wicket Cookbook Published!

 For the past nine months I have been quietly working on a book about
 Wicket. Unlike other books on the market this one does not attempt to
 teach you Wicket from the ground up. Instead, it is for developers who
 already know the basics and want to learn how to implement some of the
 more advanced use cases. Essentially, it contains recipes that show the
 reader how to implement solutions to some of, what I think are, the most
 commonly asked questions and stumbling blocks. This morning I was
 informed that the book has been published! You can read more about it
 and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more details
 below...

 [1] https://www.packtpub.com/apache-wicket-cookbook/book

 ## Description ##

 Apache Wicket is one of the most famous Java web application frameworks.
 Wicket simplifies web development and makes it fun. Are you bored of
 going through countless pages of theory to find out how to get your web
 development done? With this book in hand, you don't need to go through
 hundreds of pages to figure out how you will actually build a web
 application. You will get practical solutions to your common everyday
 development tasks to pace up your development activities.

 Apache Wicket Cookbook provides you with information that gets your
 problems solved quickly without beating around the bush. This book is
 perfect for you if you are ready to take the next step from tutorials
 and step into the practical world. It will take you beyond the basics of
 using Apache Wicket and show you how to leverage Wicket's advanced
 features to create simpler and more maintainable solutions to what at
 first may seem complex problems.

 You will learn how to integrate with client-side technologies such as
 JavaScript libraries or Flash components, which will help you to build
 your application faster. You will discover how to use Wicket paradigms
 to factor out commonly used code into custom Components, which will
 reduce the maintenance cost of your application, and how to leverage the
 existing Wicket Components to make your own code simpler.

 A straightforward Cookbook with highly focused practical recipes to make
 your web application development easier with the Wicket web framework

 ## What you will learn from this book ##

 * Leverage Wicket to implement a wide variety of both simple and
 advanced use cases in a narrative that gets straight to the point
 * Make forms work in the crazy world of the Web by learning the ways of
 Wicket's form processing
 * Simplify localizing your Wicket applications
 * Take the boring out of your forms by discovering how to improve the
 user experience while simplifying your code at the same time
 * Leverage the built-in Table component to make displaying tabular data
 a snap
 * Think Wicket's Borders are not very useful? Learn to use them in
 unexpected places to simplify things
 * See how to integrate with Flash components and create interactive
 charts at the same time
 * Web 1.0 too boring? Learn how to tame Wicket's AJAX support and bring
 your application into Web 2.0
 * Simplify your security code by learning various security techniques
 * An application cannot be built with Wicket alone; see how to make it
 play nice with other frameworks

 ## Approach ##

 This is a hands-on practical guide to a large variety of topics and use
 cases. This book tries to use real-world examples when possible, but is
 not afraid to come up with a contrived pretext if it makes explaining
 the problem simpler. Unlike a lot of other books, this one does not try
 to maintain a continuous theme from chapter to chapter, such as
 demonstrating solutions on the same fictional application; doing so
 would be almost impossible given the wide variety of recipes presented
 here. Instead, this book concentrates on focused problems users are
 likely to encounter and shows clear solutions in a step-by-step manner.
 This book tries to teach by example and is not afraid to show a lot of
 code because, after all, it is for coders.

 ## Who this book is written for ##

 This book is for current users of the Apache Wicket framework; it is not
 an introduction to Wicket that will bore you with tons 

Re: Apache Wicket Cookbook Published!

[Bertrand Guay-Paquet]

Looking forward to reading it! My copy is in the mail.

On 25/03/2011 1:44 PM, Igor Vaynberg wrote:

For the past nine months I have been quietly working on a book about
Wicket. Unlike other books on the market this one does not attempt to
teach you Wicket from the ground up. Instead, it is for developers who
already know the basics and want to learn how to implement some of the
more advanced use cases. Essentially, it contains recipes that show
the reader how to implement solutions to some of, what I think are,
the most commonly asked questions and stumbling blocks. This morning I
was informed that the book has been published! You can read more about
it and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more
details below...

[1] https://www.packtpub.com/apache-wicket-cookbook/book

## Description ##

Apache Wicket is one of the most famous Java web application
frameworks. Wicket simplifies web development and makes it fun. Are
you bored of going through countless pages of theory to find out how
to get your web development done? With this book in hand, you don't
need to go through hundreds of pages to figure out how you will
actually build a web application. You will get practical solutions to
your common everyday development tasks to pace up your development
activities.

Apache Wicket Cookbook provides you with information that gets your
problems solved quickly without beating around the bush. This book is
perfect for you if you are ready to take the next step from tutorials
and step into the practical world. It will take you beyond the basics
of using Apache Wicket and show you how to leverage Wicket's advanced
features to create simpler and more maintainable solutions to what at
first may seem complex problems.

You will learn how to integrate with client-side technologies such as
JavaScript libraries or Flash components, which will help you to build
your application faster. You will discover how to use Wicket paradigms
to factor out commonly used code into custom Components, which will
reduce the maintenance cost of your application, and how to leverage
the existing Wicket Components to make your own code simpler.

A straightforward Cookbook with highly focused practical recipes to
make your web application development easier with the Wicket web
framework

## What you will learn from this book ##

* Leverage Wicket to implement a wide variety of both simple and
advanced use cases in a narrative that gets straight to the point
* Make forms work in the crazy world of the Web by learning the ways
of Wicket's form processing
* Simplify localizing your Wicket applications
* Take the boring out of your forms by discovering how to improve the
user experience while simplifying your code at the same time
* Leverage the built-in Table component to make displaying tabular data a snap
* Think Wicket's Borders are not very useful? Learn to use them in
unexpected places to simplify things
* See how to integrate with Flash components and create interactive
charts at the same time
* Web 1.0 too boring? Learn how to tame Wicket's AJAX support and
bring your application into Web 2.0
* Simplify your security code by learning various security techniques
* An application cannot be built with Wicket alone; see how to make it
play nice with other frameworks

## Approach ##

This is a hands-on practical guide to a large variety of topics and
use cases. This book tries to use real-world examples when possible,
but is not afraid to come up with a contrived pretext if it makes
explaining the problem simpler. Unlike a lot of other books, this one
does not try to maintain a continuous theme from chapter to chapter,
such as demonstrating solutions on the same fictional application;
doing so would be almost impossible given the wide variety of recipes
presented here. Instead, this book concentrates on focused problems
users are likely to encounter and shows clear solutions in a
step-by-step manner. This book tries to teach by example and is not
afraid to show a lot of code because, after all, it is for coders.

## Who this book is written for ##

This book is for current users of the Apache Wicket framework; it is
not an introduction to Wicket that will bore you with tons of theory.
You are expected to have built or maintained a simple Wicket
application in the past and to be looking to learn new and better ways
of using Wicket. If you are ready to take your Wicket skills to the
next level this book is for you.

Cheers, and I hope you enjoy the book!
-Igor

-
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Re: Apache Wicket Cookbook Published!

[Matthias Gasser]

Thx!

Got it, and it is well done.

Cheers,
Matthias
--
http://matthiasgasser.com


Am 25.03.2011 um 22:17 schrieb Bertrand Guay-Paquet:

 Looking forward to reading it! My copy is in the mail.
 
 On 25/03/2011 1:44 PM, Igor Vaynberg wrote:
 For the past nine months I have been quietly working on a book about
 Wicket. Unlike other books on the market this one does not attempt to
 teach you Wicket from the ground up. Instead, it is for developers who
 already know the basics and want to learn how to implement some of the
 more advanced use cases. Essentially, it contains recipes that show
 the reader how to implement solutions to some of, what I think are,
 the most commonly asked questions and stumbling blocks. This morning I
 was informed that the book has been published! You can read more about
 it and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more
 details below...
 
 [1] https://www.packtpub.com/apache-wicket-cookbook/book
 
 ## Description ##
 
 Apache Wicket is one of the most famous Java web application
 frameworks. Wicket simplifies web development and makes it fun. Are
 you bored of going through countless pages of theory to find out how
 to get your web development done? With this book in hand, you don't
 need to go through hundreds of pages to figure out how you will
 actually build a web application. You will get practical solutions to
 your common everyday development tasks to pace up your development
 activities.
 
 Apache Wicket Cookbook provides you with information that gets your
 problems solved quickly without beating around the bush. This book is
 perfect for you if you are ready to take the next step from tutorials
 and step into the practical world. It will take you beyond the basics
 of using Apache Wicket and show you how to leverage Wicket's advanced
 features to create simpler and more maintainable solutions to what at
 first may seem complex problems.
 
 You will learn how to integrate with client-side technologies such as
 JavaScript libraries or Flash components, which will help you to build
 your application faster. You will discover how to use Wicket paradigms
 to factor out commonly used code into custom Components, which will
 reduce the maintenance cost of your application, and how to leverage
 the existing Wicket Components to make your own code simpler.
 
 A straightforward Cookbook with highly focused practical recipes to
 make your web application development easier with the Wicket web
 framework
 
 ## What you will learn from this book ##
 
 * Leverage Wicket to implement a wide variety of both simple and
 advanced use cases in a narrative that gets straight to the point
 * Make forms work in the crazy world of the Web by learning the ways
 of Wicket's form processing
 * Simplify localizing your Wicket applications
 * Take the boring out of your forms by discovering how to improve the
 user experience while simplifying your code at the same time
 * Leverage the built-in Table component to make displaying tabular data a 
 snap
 * Think Wicket's Borders are not very useful? Learn to use them in
 unexpected places to simplify things
 * See how to integrate with Flash components and create interactive
 charts at the same time
 * Web 1.0 too boring? Learn how to tame Wicket's AJAX support and
 bring your application into Web 2.0
 * Simplify your security code by learning various security techniques
 * An application cannot be built with Wicket alone; see how to make it
 play nice with other frameworks
 
 ## Approach ##
 
 This is a hands-on practical guide to a large variety of topics and
 use cases. This book tries to use real-world examples when possible,
 but is not afraid to come up with a contrived pretext if it makes
 explaining the problem simpler. Unlike a lot of other books, this one
 does not try to maintain a continuous theme from chapter to chapter,
 such as demonstrating solutions on the same fictional application;
 doing so would be almost impossible given the wide variety of recipes
 presented here. Instead, this book concentrates on focused problems
 users are likely to encounter and shows clear solutions in a
 step-by-step manner. This book tries to teach by example and is not
 afraid to show a lot of code because, after all, it is for coders.
 
 ## Who this book is written for ##
 
 This book is for current users of the Apache Wicket framework; it is
 not an introduction to Wicket that will bore you with tons of theory.
 You are expected to have built or maintained a simple Wicket
 application in the past and to be looking to learn new and better ways
 of using Wicket. If you are ready to take your Wicket skills to the
 next level this book is for you.
 
 Cheers, and I hope you enjoy the book!
 -Igor
 
 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 

Re: Apache Wicket Cookbook Published!

[Cemal Bayramoglu]

Looks as good as any PDF on the Kindle.

I've been looking forward to this, thanks Igor!

Regards - Cemal
jWeekend
Training, Consulting, Development
http://jWeekend.com


On 25 March 2011 20:47, Igor Vaynberg igor.vaynb...@gmail.com wrote:
 there are some graphics, but most of them are small and should look ok
 in a reader. i havent tried it in my kindle yet.

 -igor

 On Fri, Mar 25, 2011 at 1:00 PM, Pierre Goupil goupilpie...@gmail.com wrote:
 Excellent! I'll buy it in a week max!

 Are there a lot of complex graphics or is it suitable to read it in a BW
 e-book reader in pdf format? Actually, I think I'll buy both format but you
 know...

 Regards,

 Pierre



 On Fri, Mar 25, 2011 at 6:52 PM, Brown, Berlin [GCG-PFS] 
 berlin.br...@primerica.com wrote:

 Congrats.

 I trust Igor

 -Original Message-
 From: Igor Vaynberg [mailto:igor.vaynb...@gmail.com]
 Sent: Friday, March 25, 2011 1:44 PM
 To: users@wicket.apache.org; d...@wicket.apache.org;
 annou...@wicket.apache.org
 Subject: Apache Wicket Cookbook Published!

 For the past nine months I have been quietly working on a book about
 Wicket. Unlike other books on the market this one does not attempt to
 teach you Wicket from the ground up. Instead, it is for developers who
 already know the basics and want to learn how to implement some of the
 more advanced use cases. Essentially, it contains recipes that show the
 reader how to implement solutions to some of, what I think are, the most
 commonly asked questions and stumbling blocks. This morning I was
 informed that the book has been published! You can read more about it
 and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more details
 below...

 [1] https://www.packtpub.com/apache-wicket-cookbook/book

 ## Description ##

 Apache Wicket is one of the most famous Java web application frameworks.
 Wicket simplifies web development and makes it fun. Are you bored of
 going through countless pages of theory to find out how to get your web
 development done? With this book in hand, you don't need to go through
 hundreds of pages to figure out how you will actually build a web
 application. You will get practical solutions to your common everyday
 development tasks to pace up your development activities.

 Apache Wicket Cookbook provides you with information that gets your
 problems solved quickly without beating around the bush. This book is
 perfect for you if you are ready to take the next step from tutorials
 and step into the practical world. It will take you beyond the basics of
 using Apache Wicket and show you how to leverage Wicket's advanced
 features to create simpler and more maintainable solutions to what at
 first may seem complex problems.

 You will learn how to integrate with client-side technologies such as
 JavaScript libraries or Flash components, which will help you to build
 your application faster. You will discover how to use Wicket paradigms
 to factor out commonly used code into custom Components, which will
 reduce the maintenance cost of your application, and how to leverage the
 existing Wicket Components to make your own code simpler.

 A straightforward Cookbook with highly focused practical recipes to make
 your web application development easier with the Wicket web framework

 ## What you will learn from this book ##

 * Leverage Wicket to implement a wide variety of both simple and
 advanced use cases in a narrative that gets straight to the point
 * Make forms work in the crazy world of the Web by learning the ways of
 Wicket's form processing
 * Simplify localizing your Wicket applications
 * Take the boring out of your forms by discovering how to improve the
 user experience while simplifying your code at the same time
 * Leverage the built-in Table component to make displaying tabular data
 a snap
 * Think Wicket's Borders are not very useful? Learn to use them in
 unexpected places to simplify things
 * See how to integrate with Flash components and create interactive
 charts at the same time
 * Web 1.0 too boring? Learn how to tame Wicket's AJAX support and bring
 your application into Web 2.0
 * Simplify your security code by learning various security techniques
 * An application cannot be built with Wicket alone; see how to make it
 play nice with other frameworks

 ## Approach ##

 This is a hands-on practical guide to a large variety of topics and use
 cases. This book tries to use real-world examples when possible, but is
 not afraid to come up with a contrived pretext if it makes explaining
 the problem simpler. Unlike a lot of other books, this one does not try
 to maintain a continuous theme from chapter to chapter, such as
 demonstrating solutions on the same fictional application; doing so
 would be almost impossible given the wide variety of recipes presented
 here. Instead, this book concentrates on focused problems users are
 likely to encounter and shows clear solutions in a step-by-step manner.
 This book tries to teach by example and 

Re: Apache Wicket Cookbook Published!

[nimmy]

Congratulations on the book! My dead-tree format is in the post!

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Re: Apache Wicket Cookbook Published!

[Attila Király]

Gratulations! I ordered one.

Attila

2011/3/25 Igor Vaynberg igor.vaynb...@gmail.com

 For the past nine months I have been quietly working on a book about
 Wicket...

Re: PackageResourceReference, MetaInfStaticResourceReference and timestamps

[Attila Király]

2011/3/25 mzem...@osc.state.ny.us

 Hi,
 
 I made a new test (serving a png and a js) with current trunk and the gap
 is
 much smaller now: tomcat is 25% faster on average.
 
 Attila

 Attila can you elaborate on your tests?  Are you comparing the difference
 between using a resource reference (js) and image component (png) in
 wicket vs linking straight the to the files in html?  If so, what
 relevance does whether the static files are in META-INF or WEB-INF have?
 Not that much because if I am correct the extra overhead is introduced by
 having wicket process the resource and spit out the markup...


Hi!

In speed test I compared the serving time of the static resources directly
(and not the rendering time of the url-s in the wicket page or the page
itself). With jmeter I calculated the average time for serving 20k times the
same resource trough Servlet 3.0 meta and trough wicket.

Attila

Re: Apache Wicket Cookbook Published!

[jcgarciam]

Congrats!!
I will order mine!

On Fri, Mar 25, 2011 at 7:48 PM, Attila Király [via Apache Wicket] 
ml-node+3406630-1722189058-65...@n4.nabble.com wrote:

 Gratulations! I ordered one.

 Attila

 2011/3/25 Igor Vaynberg [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=3406630i=0by-user=t


  For the past nine months I have been quietly working on a book about
  Wicket...


 --
  If you reply to this email, your message will be added to the discussion
 below:

 http://apache-wicket.1842946.n4.nabble.com/Apache-Wicket-Cookbook-Published-tp3406012p3406630.html
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-- 
Sincerely,
JC (http://www.linkedin.com/in/jcgarciam)
--Anyone who has never made a mistake has never tried anything new.--


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Re: Apache Wicket Cookbook Published!

[Eelco Hillenius]

Another baby, congrats!

Eelco

On Fri, Mar 25, 2011 at 10:44 AM, Igor Vaynberg igor.vaynb...@gmail.com wrote:
 For the past nine months I have been quietly working on a book about
 Wicket. Unlike other books on the market this one does not attempt to
 teach you Wicket from the ground up. Instead, it is for developers who
 already know the basics and want to learn how to implement some of the
 more advanced use cases. Essentially, it contains recipes that show
 the reader how to implement solutions to some of, what I think are,
 the most commonly asked questions and stumbling blocks. This morning I
 was informed that the book has been published! You can read more about
 it and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more
 details below...

 [1] https://www.packtpub.com/apache-wicket-cookbook/book

 ## Description ##

 Apache Wicket is one of the most famous Java web application
 frameworks. Wicket simplifies web development and makes it fun. Are
 you bored of going through countless pages of theory to find out how
 to get your web development done? With this book in hand, you don't
 need to go through hundreds of pages to figure out how you will
 actually build a web application. You will get practical solutions to
 your common everyday development tasks to pace up your development
 activities.

 Apache Wicket Cookbook provides you with information that gets your
 problems solved quickly without beating around the bush. This book is
 perfect for you if you are ready to take the next step from tutorials
 and step into the practical world. It will take you beyond the basics
 of using Apache Wicket and show you how to leverage Wicket's advanced
 features to create simpler and more maintainable solutions to what at
 first may seem complex problems.

 You will learn how to integrate with client-side technologies such as
 JavaScript libraries or Flash components, which will help you to build
 your application faster. You will discover how to use Wicket paradigms
 to factor out commonly used code into custom Components, which will
 reduce the maintenance cost of your application, and how to leverage
 the existing Wicket Components to make your own code simpler.

 A straightforward Cookbook with highly focused practical recipes to
 make your web application development easier with the Wicket web
 framework

 ## What you will learn from this book ##

 * Leverage Wicket to implement a wide variety of both simple and
 advanced use cases in a narrative that gets straight to the point
 * Make forms work in the crazy world of the Web by learning the ways
 of Wicket's form processing
 * Simplify localizing your Wicket applications
 * Take the boring out of your forms by discovering how to improve the
 user experience while simplifying your code at the same time
 * Leverage the built-in Table component to make displaying tabular data a snap
 * Think Wicket's Borders are not very useful? Learn to use them in
 unexpected places to simplify things
 * See how to integrate with Flash components and create interactive
 charts at the same time
 * Web 1.0 too boring? Learn how to tame Wicket's AJAX support and
 bring your application into Web 2.0
 * Simplify your security code by learning various security techniques
 * An application cannot be built with Wicket alone; see how to make it
 play nice with other frameworks

 ## Approach ##

 This is a hands-on practical guide to a large variety of topics and
 use cases. This book tries to use real-world examples when possible,
 but is not afraid to come up with a contrived pretext if it makes
 explaining the problem simpler. Unlike a lot of other books, this one
 does not try to maintain a continuous theme from chapter to chapter,
 such as demonstrating solutions on the same fictional application;
 doing so would be almost impossible given the wide variety of recipes
 presented here. Instead, this book concentrates on focused problems
 users are likely to encounter and shows clear solutions in a
 step-by-step manner. This book tries to teach by example and is not
 afraid to show a lot of code because, after all, it is for coders.

 ## Who this book is written for ##

 This book is for current users of the Apache Wicket framework; it is
 not an introduction to Wicket that will bore you with tons of theory.
 You are expected to have built or maintained a simple Wicket
 application in the past and to be looking to learn new and better ways
 of using Wicket. If you are ready to take your Wicket skills to the
 next level this book is for you.

 Cheers, and I hope you enjoy the book!
 -Igor

 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org



-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: 

Re: Apache Wicket Cookbook Published!

[shetc]

Congrats! Bought a copy -- glad to see that the merchant vendor is Royal Bank
of Scotland. Scotland the Brave!

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Re: Apache Wicket Cookbook Published!

[robert.mcguinness]

purchased!

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Re: Apache Wicket Cookbook Published!

[Jeremy Thomerson]

I had the privilege of previewing the book's content over the past few
months, and I can tell you that this book is going to be worth every penny
and then some!  I'd recommend it for every Wicket develop out there - even
if you think you've already done it all.  I guarantee you'll pick up a
trick or two - I did!

-- 
Jeremy Thomerson
http://wickettraining.com
*Need a CMS for Wicket?  Use Brix! http://brixcms.org*


On Fri, Mar 25, 2011 at 1:44 PM, Igor Vaynberg igor.vaynb...@gmail.comwrote:

 For the past nine months I have been quietly working on a book about
 Wicket. Unlike other books on the market this one does not attempt to
 teach you Wicket from the ground up. Instead, it is for developers who
 already know the basics and want to learn how to implement some of the
 more advanced use cases. Essentially, it contains recipes that show
 the reader how to implement solutions to some of, what I think are,
 the most commonly asked questions and stumbling blocks. This morning I
 was informed that the book has been published! You can read more about
 it and pick up a copy on PACKT's Site[1]. I hope you enjoy it, more
 details below...

 [1] https://www.packtpub.com/apache-wicket-cookbook/book

 ## Description ##

 Apache Wicket is one of the most famous Java web application
 frameworks. Wicket simplifies web development and makes it fun. Are
 you bored of going through countless pages of theory to find out how
 to get your web development done? With this book in hand, you don't
 need to go through hundreds of pages to figure out how you will
 actually build a web application. You will get practical solutions to
 your common everyday development tasks to pace up your development
 activities.

 Apache Wicket Cookbook provides you with information that gets your
 problems solved quickly without beating around the bush. This book is
 perfect for you if you are ready to take the next step from tutorials
 and step into the practical world. It will take you beyond the basics
 of using Apache Wicket and show you how to leverage Wicket's advanced
 features to create simpler and more maintainable solutions to what at
 first may seem complex problems.

 You will learn how to integrate with client-side technologies such as
 JavaScript libraries or Flash components, which will help you to build
 your application faster. You will discover how to use Wicket paradigms
 to factor out commonly used code into custom Components, which will
 reduce the maintenance cost of your application, and how to leverage
 the existing Wicket Components to make your own code simpler.

 A straightforward Cookbook with highly focused practical recipes to
 make your web application development easier with the Wicket web
 framework

 ## What you will learn from this book ##

 * Leverage Wicket to implement a wide variety of both simple and
 advanced use cases in a narrative that gets straight to the point
 * Make forms work in the crazy world of the Web by learning the ways
 of Wicket's form processing
 * Simplify localizing your Wicket applications
 * Take the boring out of your forms by discovering how to improve the
 user experience while simplifying your code at the same time
 * Leverage the built-in Table component to make displaying tabular data a
 snap
 * Think Wicket's Borders are not very useful? Learn to use them in
 unexpected places to simplify things
 * See how to integrate with Flash components and create interactive
 charts at the same time
 * Web 1.0 too boring? Learn how to tame Wicket's AJAX support and
 bring your application into Web 2.0
 * Simplify your security code by learning various security techniques
 * An application cannot be built with Wicket alone; see how to make it
 play nice with other frameworks

 ## Approach ##

 This is a hands-on practical guide to a large variety of topics and
 use cases. This book tries to use real-world examples when possible,
 but is not afraid to come up with a contrived pretext if it makes
 explaining the problem simpler. Unlike a lot of other books, this one
 does not try to maintain a continuous theme from chapter to chapter,
 such as demonstrating solutions on the same fictional application;
 doing so would be almost impossible given the wide variety of recipes
 presented here. Instead, this book concentrates on focused problems
 users are likely to encounter and shows clear solutions in a
 step-by-step manner. This book tries to teach by example and is not
 afraid to show a lot of code because, after all, it is for coders.

 ## Who this book is written for ##

 This book is for current users of the Apache Wicket framework; it is
 not an introduction to Wicket that will bore you with tons of theory.
 You are expected to have built or maintained a simple Wicket
 application in the past and to be looking to learn new and better ways
 of using Wicket. If you are ready to take your Wicket skills to the
 next level this book is for you.

 Cheers, and I hope you enjoy the book!
 -Igor

 

Ajax Submit Link and detect if that button clicked

[Brown, Berlin [GCG-PFS]]

I was having trouble detecting if a particular ajax submit link was the
last behavior associated with a form submission.  I tried to use the
findSubmittingButton (or whatever the name is) and that was always
returning null.
 
I used this approach and it works, but doesn't seem intuitintive and I
wonder if there is a better way.
 
final String lastURL = form.getWebRequest().getURL();
return (lastURL.indexOf(nextLink) != -1);   or whatever the
link is in the URL.