from:"Michael Mosmann"

Re: The day Wicket became Apache Wicket 10 years ago!

2017-06-19 Thread Michael Mosmann


Wooohooo:)


Am 19. Juni 2017 9:19:03 nachm. schrieb Martijn Dashorst 
:



Today marks the date 10 years ago that the Wicket project graduated from
the Incubator to a fully fledged Apache project.

The time flies when you're having fun!

I would like to thank all our community members for their continued support
and usage of Apache Wicket and pour one out for you!

Here's a big Thank You for everyone reading this message, asking and
answering questions, using Wicket in their projects and a special :beer:
for all contributors to Wicket, past and present! Here's to another 10
years!

Martijn Dashorst




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Re: Christmas / new year [NON-BIZ]

2016-12-24 Thread Michael Mosmann


Merry Christmas:)

Mit AquaMail Android
http://www.aqua-mail.com gesendet


Am 24. Dezember 2016 2:46:34 nachm. schrieb Martin Grigorov 
:



Merry Christmas !

On Dec 24, 2016 1:33 PM, "Tobias Soloschenko" <
tobiassolosche...@googlemail.com> wrote:

Hi all,

I wish you a merry christmas and happy new year. :-)

kind regards

Tobias




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Re: 2 different context paths using one single war file

2015-10-09 Thread Michael Mosmann

Hi,

why do you want that? What is the benefit of having the same application under 
two different path?

Michael:)

Am 9. Oktober 2015 05:03:18 MESZ, schrieb trlt :
>I have developed a Wicket application (MyApplication.war), to be
>deployed on
>Apache + Tomcat.
>It can be invoked using: http://hostname//MyApplication
>
>The application has 2 bookmarkable pages:
>http://hostname/MyApplication/page1
>http://hostname/MyApplication/page2
>
>I'd like to make page2 also available using a different hostname:
>http://hostname2/department/page2
>
>Using one single war file, how can I use the same source code in Wicket
>to
>serve the following 2 different URLs:
>
>http://hostname/MyApplication/page2
>http://hostname2/department/page2
>
>Hoping someone in the user group can offer some help or suggestions.
>Thanks!
>
>
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Re: When should one use fragments?

2015-01-21 Thread Michael Mosmann

Hi,

You can refactor fragments into panel (and should do this, it is easy).
I use fragments only if i want to hide components to the outside or
reduce the count of files i have to open to solve something.. this
happens only if i build some kind of prototype. If you have nothing to
hide just use panels instead.

If you want to avoid switching, you can make them invisible.. but it
depends on your usecase..

Michael:)
 
Am 21.01.2015 um 12:10 schrieb ChambreNoire:
 Hello,

 I'm going over some old code and I have noticed that some devs are using
 fragments to slice up views. For instance, one Panel only has a single
 'content' div and then the 3 different views are displayed by switching
 between 3 Fragments with replaceWith(). This seems to me to break the 'avoid
 changing the component hierarchy' best practice. My understanding was that
 Fragments were mostly of use in ListView scenarios.

 Any thoughts on this and appropriate Fragment use in general?

 Thanks,

 CN


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Re: wicket form and browser back

2013-10-01 Thread Michael Mosmann

AFAIK does a browser back bypass everything on the page. Maybe it is 
better to avoid paging if there is dependent state on different pages 
(use ajax instead and make it single-page).


michael:)

Am 01.10.13 10:53, schrieb Karl-Heinz Golz:

Thank you, Martin, that works well.
But next question:
when a user goes back and forward via browser back and forward buttons,
then already filled in fields will be empty (using Firefox).
Is it possible to handle browser back the same way like form submit?
That is, browser back causes a trip to the server and wicket gives
controll to my application the same way it would be done when the user
presses the submit button?


Am 01.10.2013 09:59, schrieb Martin Grigorov: Hi,

Mark the page as non-versioned (Page.setVersioned(false)).
This way there won't be previous version of page. When the user uses
browser back button she will go to the previous page, not to the previous
version of the current page.


On Tue, Oct 1, 2013 at 9:35 AM, Karl-Heinz Golz

karl-heinz.g...@t-online.de

wrote:

hello,

I know that is an ongoing discussion point for years but nevertheless
I would like to ask you whether there are good solutions in the meantime.
In my web application (WICKET 6.5) there is a quite big form and I
want to detect and react when a user goes back to an older version of
this form using the browser back button. When the user hits the submit
button on that older version he will lose data. I would like to avoid
that in some way.

Suggestions and experiences are very welcome.

Many thanks in advance
Karl-Heinz



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Re: Wicket merchandise

2013-09-20 Thread Michael Mosmann


+1 for Martin Grigorov

Hi Guys

long time no see.. Apparently there are some money left on the wicket
merchandise shop (http://www.cafepress.com/apachewicket).. So I suggest
that it's time for the community to nominee and vote on who should 
have a

cap, tshirt or coffee mug for their effort..

So if someone would gather nominees and handle the vote.. I'll send the
merchandise to the lucky (or hard working) winner :)

I'll follow on the side line..




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Re: OutOfMemoryError: Java heap space when i try to upload and show a hundred 100kb pics

2013-09-02 Thread Michael Mosmann



Am 01.09.13 10:53, schrieb Giovanni:

Martin Grigorov-4 wrote

Hi,
Read about Java memory settings (-Xms, -Xmx)

Yes, I can increase heap space by settings, but is this a good approach? If
displaying one 10Mb pic consumes 1.5Gb heap space - is this normal? Maybe
there are other ways to solve this problem without increasing heap space by
settings?
I think there is a better solution if you do not have unlimited memory 
:). See http://wicketinaction.com/2011/07/wicket-1-5-mounting-resources/ 
. You generate every image in your page render loop. This way the image 
data is stored in your page (which is bad). If you use a 
DynamichImageResource the image is created when the image request comes 
in. But you have to store your images somewhere else (remove this static 
list of buffered images) and refer to them with an ID.


Michael

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Re: Wicket serialization concerns

2013-08-22 Thread Michael Mosmann


Am 21.08.13 01:01, schrieb Michael Chandler:

.. will expose me to a serialization error unless I put it in a Wicket model.  
Am I correct about this?

There is nothing special about the serialization in Wicket. Wicket uses 
the default Java serialization. So every field not marked as transient 
will be serialized. As Martin said: watch out for non static inner 
classes or anon classes because you can not see the field which is 
created for any reference to something from the outer scope.


To put your stuff behind a model has a benefit: if wicket is done with 
your page (response is written to the client) it will throw away 
anything changeable from your models. In your case the list of the 
entries from your database is flushed from memory.


I would not recommend to put long living data into your components 
(which then must be serialize-able). You should put something like this 
into a cache.


You can put everything needed to load you date from somewhere into an model.

public class Customers extends LoadableDetachableModelListCustomer {
  @SpringBean
  CustomersDao dao;

  public Customers() {
Injector.get().inject(this);
  }

  public ListCustomer load() {
return dao.allCustomers();
  }
}

This way your component must not deal with anything else .. it will use 
model which provides the data:)


Michael:)

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Re: How to resolve this java.util.ConcurrentModificationException

2013-08-07 Thread Michael Mosmann


Am 06.08.13 20:03, schrieb saty:

...various wicket
panels use this data-manager to request data that they need to
display/update etc.
I think it matters how you acces this data-manager from your panels. If 
you use something like this:


Application.get().dataManager().doSomething(bla)

you should not have any problems like that. So I think you are holding a 
reference to the data-manager as a field in your panel. This way its 
part of the object and will be serialized.


You can put this kind of stuff in an LDM an overwrite the load()-method with

Application.get().dataManager().doSomething(bla)

This way your panel can use this model like any other model.
  
Access to data is well protected using various synchronization techniques

and have no problem in that. The problem seems to be, is somehow wicket is
trying to serialize this LRUMAP which conflicts with application wring data
to it at that same time.



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Re: How to resolve this java.util.ConcurrentModificationException

2013-08-06 Thread Michael Mosmann

IMHO nothing in Application is serialized. But its far to easy to leak
an instance of this LRU-Map into some components (anon classes).

Can you provide some code or error message?

Am 06.08.13 18:22, schrieb saty:

I need to understand what and when Wicket tries to serialize stuff in a
running wicket application. I am not able to fix this error and it keeps
growing with more users starting to use the application. It does not affect
the application usage but it keeps beaming error email.

I am using LRU map to cache certain data being used in the application and
that is a shared data in a static context not tied to any particular user.
Why would wicket try to serialize this object, this should not be serialized
at all. LRU map this is not synchronized and is not thread-safe and
application code treats it that way but the serialization keeps generating
concurrent modification exception as its obvious its trying to serialize
this when something changes the map.
if i declare this as transient, will this prevent wicket from serializing
this map too, what are the possible repercussion in wicket application if i
declare this transient.

Thanks for your help.

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Re: Interesting article from Zeroturnaround

2013-08-01 Thread Michael Mosmann

Am 31.07.13 19:24, schrieb Igor Vaynberg:

unless youve built and maintained a real non-trivial application using all
those frameworks how can you put numbers on them?
I used Grails,Wicket,JSF,Spring Webflow and Struts in real non-trivial
applications. I was involved in projects using GWT and JSF. I played
around and talked with many other developers about Play and Vaadin. And
still the only thing i have is an opinion about it:)

But to put numbers on it, i can show where i see differences. And not
only my numbers are different.. i put them on different places. I hope i
can show my experience a little bit more quantified ..

Its an opinion, not facts. In i will not put something in order.. such
as the winner is.. because i think this is kind of useless.

-igor

On Wed, Jul 31, 2013 at 5:47 AM, Michael Mosmann mich...@mosmann.de wrote:

Am 31.07.13 13:56, schrieb Andrea Del Bene:

I don't agree with everything in it, but it's a good article anyway :) ...

http://zeroturnaround.com/**rebellabs/the-curious-coders-**
java-web-frameworks-**comparison-spring-mvc-grails-**
vaadin-gwt-wicket-play-struts-**and-jsf/http://zeroturnaround.com/rebellabs/the-curious-coders-java-web-frameworks-comparison-spring-mvc-grails-vaadin-gwt-wicket-play-struts-and-jsf/

I will take some time and put my own numbers (with some hopefully good
explanations) in to the mix. So stay tuned:)

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Re: Interesting article from Zeroturnaround

2013-07-31 Thread Michael Mosmann


Am 31.07.13 13:56, schrieb Andrea Del Bene:

I don't agree with everything in it, but it's a good article anyway :) ...

http://zeroturnaround.com/rebellabs/the-curious-coders-java-web-frameworks-comparison-spring-mvc-grails-vaadin-gwt-wicket-play-struts-and-jsf/
I will take some time and put my own numbers (with some hopefully good 
explanations) in to the mix. So stay tuned:)


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Re: Wicket job market

2013-02-04 Thread Michael Mosmann


Am 04.02.2013 15:43, schrieb manuelbarzi:

Play Framework, Apache Click, Stripes, Struts, JSF, Seam
http://www.indeed.com/jobtrends?q=%22Play+Framework%22%2C+%22Apache+Click%22%2C+Stripes%2C+Struts%2C+JSF%2C+Seam
What needs to be improved to get a wider adoption of Wicket ?

IMO, selling Wicket as Vaadin does, may help a lot.
I think, you should not compare wicket with vaadin. Wicket is not the 
right answer for every project. Wicket does not compete with vaadin, 
because wicket is a different hammer. The rise of javascript apps 
could change the future of web development, but for such a project you 
should not use wicket either. IMHO wicket is the better answer than 
struts, grails (if you have a long term maintenance cycle), jsf...


I think there are many wicket projects out there, but wicket is not the 
so called cool stuff like grails, spring roo and so on... nothing a 
developer likes to play with (which is IMHO a good thing). I think, this 
could be changed with wicket 6 (jquery build-in)... but it is a long way.


Michael


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Re: Wicket job market

2013-02-04 Thread Michael Mosmann

I agree with you.

The one thing i would say:if you want to have a nice presentation of vaadin,it 
comes out of the box,because thats a vaadin feature:nice presentation. No other 
framework has it such easy:)

So lets start a competition...

Michael:)



manuelbarzi manuelba...@gmail.com schrieb:

 I think, you should not compare wicket with vaadin. Wicket is not the
right
 answer for every project. Wicket does not compete with vaadin,
because
 wicket is a different hammer. The rise of javascript apps could
change the
 future of web development, but for such a project you should not use
wicket
 either. IMHO wicket is the better answer than struts, grails (if you
have a
 long term maintenance cycle), jsf...

 I think there are many wicket projects out there, but wicket is not
the so
 called cool stuff like grails, spring roo and so on... nothing a
developer
 likes to play with (which is IMHO a good thing). I think, this could
be
 changed with wicket 6 (jquery build-in)... but it is a long way.

your loosing the focus pretended to be justify before: marketing,
not tech. and many people first see, later think :)

nobody was comparing Wicket with Vaadin, neither technically and
neither in any other similar aspects. but you seem to defend so it in
your mail. Vaadin is just mentioned as a good example (like it or not)
that gains a lot of adepts just because of its cool marketing
presentation at its website (in terms of style, look  feel, and
special effects). that's all. so could be any other tech that
applies similar commercial strategies.

just to give you an example: from many persons i know, who have
decision power in projects, and they have no idea about wicket, they
just say: does wicket really have serious projects? is it actually
used? cause i see that GWT or Vaadin seem much more worked,
professional, and nice. and you cannot pretend them to perfeclty
understand the differences between techs because they have no enough
technical skills to do so. sad (not really, is a nice feedback to
learn from) but true.

Wicket is probably the best most of us have ever enjoyed before. but
let's be realistic, there's the nice paradox of non competitive
presentation of this presentation framework yet, to be sold to not
enough tech skilled people, who are decision makers. they just want
to see nice cinema. then, why not adding that to Wicket site, and be
more marketineers too?

i think we may all agree that in general, open-source projects in
Apache have a big lack of cool presentation and marketing. and
marketing it is not a concept that goes against open-source, of
course. there are many nice open-source projects that do sell
them-selves well in their sites.

one nice idea could be: why not opening a competition to create a more
marketineer presentation of Wicket tech?

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Re: What is wrong/missing in this code, model object deos not get set

2013-02-01 Thread Michael Mosmann

Use AjaxFormSubmitBehavior,not AjaxEventBehavior..

Michael



saty satya...@gmail.com schrieb:

IAutoCompleteRendererBroker renderer = new
AbstractAutoCompleteTextRendererBroker()
   {
   private static final long serialVersionUID = 1L;
   @Override
   protected String getTextValue(Broker object)
   {
   return object.getBrokerCode() +- + 
 object.getDescription();
   }


   };

final IModelBroker brokerModel = new ModelBroker();
final AutoCompleteTextFieldBroker broker = new
AutoCompleteTextFieldBroker(broker, brokerModel,renderer)
   {
   private static final long serialVersionUID = 1L;
   @Override
   protected IteratorBroker getChoices(String input)
   {
   ListBroker choices = new ArrayListBroker(10);
ListBroker brokers =  getService().getBrokerList();//gets
brokers
for (final Broker brk : brokers)
{
final String code = brk.getBrokerCode();
if (code.toUpperCase().startsWith(input.toUpperCase()))
{
choices.add(brk);
if (choices.size() == 10)
{
break;
}
}
}
return choices.iterator();
   }};

   form.add(broker);

   broker.add(new AjaxEventBehavior(onchange)
   {
   @Override
   protected void onEvent(AjaxRequestTarget 
 target) {
   
 logger.info(AjaxEventBehavior::onchange:
+brokerModel.getObject());
   //always prints null here???
   
   }

   });

Thanks



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Re: Wicket 6+ through JSONP tunneling

2013-01-18 Thread Michael Mosmann

Maybe you should use GWT instead...

Michael



MattyDE ufer.mar...@gmail.com schrieb:

We have to implement a Wicket-driven webapp which could be easily
included in
any other customer HTML-WebPage without a java-driven webserver
(could be
also php or only html or anything else).

My first idea: iframe. But iframes are not allowed cause of accessibly
for
handicaped people.
My second one (and last): JSONP. So on customer-side the customer just
has
to include a script-Tag to our java-wicket-webserver and we let wicket
submit the rendered page output to json, transfering it back to the
customer, on which side the json would be unpacked, interpreted and
injected.

But what is with the user-actions on this side. They all have to be
transfered through JSONP again back to our java-server and so on.

Did anybody of you did this before? Any ideas how to pack the
rendered
page-markup in json (should i implement my own WicketFilter?)

Thanks in Advance for any help, and apologise for my horrible English.

Its not my mothers tongue.

- Matt



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Re: Wicket 6+ through JSONP tunneling

2013-01-18 Thread Michael Mosmann

AFAIK a GTW app is nothing more then a script and a div tag on the client 
page.. dont know which protocoll GWT uses for server communication...



MattyDE ufer.mar...@gmail.com schrieb:

so Google-WebToolkit is able to communicate through JSONP with the
server?
Because i really have to ask the server for data (backend)



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Re: Are Wicket models loaded concurrently ?

2012-12-25 Thread Michael Mosmann

If you want to speedup thing, you should trigger some model loading as early as 
possible.. (It is too late, if a component calls IModel.getObject() (should 
return the right value)). Because wicket uses one thread per request you must 
use an other thread for loading.

This way you could speedup a pageload for one user..  but not for more than one 
(you have to load it anyway) .. there is a good chance to make it worse. I 
think you choose a threaded model loading if most other options failed (use a 
cache, change the query, ...)

Mm:)




Hendy Irawan he...@soluvas.com schrieb:


Hi friends,

If I have 5 Wicket (LoadableDetachable)models on a page, will Wicket
load
each model sequentially, or will the 5 models loaded concurrently ?

We're using different servers for each database connection (MongoDB,
Neo4j,
etc.) so it will be a more effective use to load the models
concurrently.

Thank you.



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Re: Illegal utf characters in ajax xml response

2012-12-18 Thread Michael Mosmann


Am 15.12.2012 06:22, schrieb Martin Makundi:

We could use AjaxSelfUpdatingTimerBehavior to iterate over most 
characters and see where it fails (which could be easily detected)..


As today i only know of 0x1a as a bad one.

Michael Mosmann


OK, is possibly trivial:

   getRequestCycleSettings().addResponseFilter(new IResponseFilter() {
 @Override
 public AppendingStringBuffer filter(AppendingStringBuffer
responseBuffer) {
   return responseBuffer; TODO if starts with xml strip illegal xml
characters?
 }
   });


?

2012/12/15 Martin Makundi martin.maku...@koodaripalvelut.com


Can you point me to an example for this?


2012/12/15 Martin Grigorov mgrigo...@apache.org


org.apache.wicket.response.filter.IResponseFilter is applied to both Ajax
and normal responses.


On Sat, Dec 15, 2012 at 7:02 AM, Martin Makundi 
martin.maku...@koodaripalvelut.com wrote:


Hi!

Is there a setting/interceptor/filter that can be applied to filter out
illegal utf characters from AjaxRequestTarget response?




http://blog.mark-mclaren.info/2007/02/invalid-xml-characters-when-valid-utf8_5873.html

Specifically wicket 1.4.x

**
Martin




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Re: Setup Wicket in Eclipse without need to re-initialize the whole servlet container

2012-09-09 Thread Michael Mosmann

I have used run-jetty-run as eclipse plugin... If this is not enough, you 
should use jrebel.

Michael mosmann



seba.wag...@gmail.com seba.wag...@gmail.com schrieb:

Hi,

we have set up Wicket in OpenMeetings and it is working fine!

However the development cycle is pretty long:
Every change requires us to recompile and restart the servlet
container.
As we use Wicket + Spring + openJPA a restart takes around 20 seconds
+ compilations time, it takes around 30 seconds in total.
When working with UI components you regularly sit on your desk and
wait for this cycle to complete ;)

Is there a way to develop and test Wicket more agile?
Is there some Hot-plug mechanism that does not require to reload the
whole servlet container with every change?

Thanks!
Sebastian

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http://www.webbase-design.de
http://www.wagner-sebastian.com
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Re: I think it's time for a new book.... Igor and Co ?

2012-07-27 Thread Michael Mosmann


Am 27.07.2012 00:16, schrieb Igor Vaynberg:

On Fri, Jul 27, 2012 at 12:20 AM, Bertrand Guay-Paquet
ber...@step.polymtl.ca wrote:

Seeing how the previous book authors became less active after writing
a book I think this is not a very good idea... :-/

Is this because the books didn't sell well enough?

i can only speak for myself,

define enough :) i agreed to work on the book knowing full well it was
not going to sell a million copies. i wrote it so the community has an
easily accessible resource.

same for me.. but a german market differ from a more global one:)

I don't know the authors
personally and I don't know much about the publishing world so it could very
well be another reason altogether.

writing the book was a very long and a very exhausting effort, much
much more then i thought it would be. when i was done the book was
actually twice as long as what was published, but the publisher wanted
me to trim it down to keep the cost low... they would have to charge
more if the book had more pages :/
I had to come upfront with how much pages it would be in the end. The 
publisher made their calculation based on it, so the page count is more 
strict than some one may think.


the combination of those two things has burned me out somewhat. at
least enough to make me want to go play with other things for a while.

-igor
same for me, but more time has passed, so i would take the pain again:) 
maybe i am a fool:)


Michael:)

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Re: Image urls with CryptoMapper

2012-07-26 Thread Michael Mosmann

I have some questions. How does the first img-tag on the second page differ 
from the first one? Why dont you use a wicket image component?

Mm:)
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jchappelle jchappe...@4redi.com schrieb:

I went back and edited my post. It might not have come through the mailing
list but if you look at it from the nabble website it shows up.

Josh

On Thu, Jul 26, 2012 at 2:57 PM, michael mosmann [via Apache Wicket] 
ml-node+s1842946n4650807...@n4.nabble.com wrote:

 Are you sure, that your panel markup works? I can not see any wicket Tag
 in it?
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 jchappelle [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=4650807i=0
 schrieb:

 I'm hitting a problem with images not being found when using CryptoMapper.
 I
 have 2 pages listed below. The dynamic image on the second page does not
 show but it does on the first page. I get to the second page by clicking
 the
 Page 2 link on the first. The code below is from my quickstart I have
 created. It is pretty small so I figured why not list it here. Any help is
 appreciated.


 public class Page1 extends WebPage
 {
 public Page1()
 {
 add(new ImagePanel(panel));
 add(new AjaxLinkVoid(page2Link)
 {
 @Override
 public void onClick(AjaxRequestTarget target)
 {
 setResponsePage(Page2.class);
 }
 });
 }
 }

 !DOCTYPE html
 html xmlns:wicket=http://wicket.apache.org;
 body
 div wicket:id=panel/div
 # Page 2
 /body
 /html


 public class Page2 extends WebPage
 {
 public Page2()
 {
 add(new ImagePanel(panel));
 }
 }

 !DOCTYPE html
 html xmlns:wicket=http://wicket.apache.org;
 body
 div wicket:id=panel/div
 /body
 /html


 public class ImagePanel extends Panel
 {
 public ImagePanel(String id)
 {
 super(id);

 add(new Label(dynamicImage, Model.of(Image Here:
 images/arrow-up-green.gif )).setEscapeModelStrings(false));
 }
 }

 ?xml version=1.0 encoding=UTF-8?
 html xmlns=http://www.w3.org/1999/xhtml;
 xmlns:wicket=http://wicket.apache.org/;
 wicket:panel
 divHard-Coded Image: images/arrow-up-green.gif /div
 divDynamic Image: /div
 /wicket:panel
 /html

 public class WicketApplication extends WebApplication
 {
 @Override
 public Class? extends Page getHomePage()
 {
 return Page1.class;
 }
 @Override
 public void init()
 {
 super.init();
 setRootRequestMapper(new
 CryptoMapper(getRootRequestMapper(), this));
 }
 }





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Re: Image urls with CryptoMapper

2012-07-26 Thread Michael Mosmann

Ok.. i think, wicket will parse the markup and rewrites the first img tag... 
Wicket can only do this, because its allready in the markup. Whatever comes out 
of an model will NOT be parsed by wicket, so its plain html (escaping switched 
off). The second image is more like your problem as the first. And AFAIK you 
have to come up with the need of rewriting you image references to absolute 
urls or to build image tags based on your html from your backend. You have to 
parse this html from your backend if you want something which can called a 
solution. Everything else is hope that it will work.

If you want to know, how you can do this, i can help with some examples.
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jchappelle jchappe...@4redi.com schrieb:

Well, in my actual live application I don't have that option. We are
sending a query to a web service and part of the response from that web
service has these image links embedded in it. So we are using a label to
display them just as I am doing in the quickstart.

As you can see in the quickstart, there is an ImagePanel which has a
hard-coded image, which only lives in html and then a dynamic image, which
is created within a wicket label. That ImagePanel is reused on both pages.
The dynamic image on the second page shows a red x in the browser. In fact
if you look at the src attribute you will see that wicket has modified the
src attribute of the hard-coded img tag to this
../../../images/arrow-up-green.gif however it left the other unchanged.

Everything works if the CryptoMapper is not the root mapper.

Josh

On Thu, Jul 26, 2012 at 3:25 PM, michael mosmann [via Apache Wicket] 
ml-node+s1842946n4650810...@n4.nabble.com wrote:

 I have some questions. How does the first img-tag on the second page
 differ from the first one? Why dont you use a wicket image component?

 Mm:)
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 jchappelle [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=4650810i=0
 schrieb:

 I went back and edited my post. It might not have come through the mailing
 list but if you look at it from the nabble website it shows up.

 Josh

 On Thu, Jul 26, 2012 at 2:57 PM, michael mosmann [via Apache Wicket] 
 [hidden email] http://user/SendEmail.jtp?type=nodenode=4650810i=1
 wrote:

  Are you sure, that your panel markup works? I can not see any wicket Tag
  in it?
  --
  Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail
  gesendet.
 
 
 
  jchappelle [hidden email]
 http://user/SendEmail.jtp?type=nodenode=4650807i=0
  schrieb:
 
  I'm hitting a problem with images not being found when using
 CryptoMapper.
  I
  have 2 pages listed below. The dynamic image on the second page does not
  show but it does on the first page. I get to the second page by clicking
  the
  Page 2 link on the first. The code below is from my quickstart I have
  created. It is pretty small so I figured why not list it here. Any help
 is
  appreciated.
 
 
  public class Page1 extends WebPage
  {
  public Page1()
  {
  add(new ImagePanel(panel));
  add(new AjaxLinkVoid(page2Link)
  {
  @Override
  public void onClick(AjaxRequestTarget target)
  {
  setResponsePage(Page2.class);
  }
  });
  }
  }
 
  !DOCTYPE html
  html xmlns:wicket=http://wicket.apache.org;
  body
  div wicket:id=panel/div
  # Page 2
  /body
  /html
 
 
  public class Page2 extends WebPage
  {
  public Page2()
  {
  add(new ImagePanel(panel));
  }
  }
 
  !DOCTYPE html
  html xmlns:wicket=http://wicket.apache.org;
  body
  div wicket:id=panel/div
  /body
  /html
 
 
  public class ImagePanel extends Panel
  {
  public ImagePanel(String id)
  {
  super(id);
 
  add(new Label(dynamicImage, Model.of(Image Here:
  images/arrow-up-green.gif )).setEscapeModelStrings(false));
  }
  }
 
  ?xml version=1.0 encoding=UTF-8?
  html xmlns=http://www.w3.org/1999/xhtml;
  xmlns:wicket=http://wicket.apache.org/;
  wicket:panel
  divHard-Coded Image: images/arrow-up-green.gif /div
  divDynamic Image: /div
  /wicket:panel
  /html
 
  public class WicketApplication extends WebApplication
  {
  @Override
  public Class? extends Page getHomePage()
  {
  return Page1.class;
  }
  @Override
  public void init()
  {
  super.init();
  setRootRequestMapper(new
  CryptoMapper(getRootRequestMapper(), this));
  }
  }
 
 
 
 
 
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Re: I think it's time for a new book.... Igor and Co ?

2012-07-22 Thread Michael Mosmann

Had the same idea...
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mlabs mlabs@gmail.com schrieb:

The title would be ... 'Wicket Internals' ...
Dive DEEPER into the parts other programmers never reach
The inner workings of response cycles... what really happens ...
Oh and esp the Ajax stuff... jQuery integration ... etc...

TIA



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Re: Understanding Wicket redirect behavior

2012-07-17 Thread Michael Mosmann

I am still working on this.. but it takes time.
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Alec Swan alecs...@gmail.com schrieb:

Anybody?

On Sat, Jul 14, 2012 at 5:24 PM, Alec Swan alecs...@gmail.com wrote:
Is there a way in 1.4.x to avoid a 302 redirect to /lrm/ms/oid/123.0
when the user opens /lrm/ms/oid/123?

Thanks,

Alec

On Sat, Jul 14, 2012 at 5:09 PM, Alec Swan alecs...@gmail.com wrote:
Michael,

I integrated DisabledJSessionIDinUrlFilter code that you sent me and I
still get a 302 redirect. The filter behaves the same as
tracking-modeCOOKIE/tracking-mode Tomcat 7 configuration.

In other words /lrm/ms/oid/123 is still redirected with 302 code to
/lrm/ms/oid/../../ms/oid/123.0. Note that I no longer have jsessionid
at the end of the URL.

I think the core problem is that my page is versionable and therefore
Wicket created the first version of the page and does a 302 redirect
to it.

Still struggling with this.

Alec

On Sat, Jul 14, 2012 at 3:48 PM, Michael Mosmann mich...@mosmann.de wrote:
Hi Alec,

Ok.. so far for now:
- with wicket 1.4 removing the jessionID from URL should do the trick.
And AFAIK wicket 1.4 should not do any redirect after this.
- with wicket 1.5 the jsessionID is gone, BUT wicket 1.5 will do some
redirect from path/yourPage to path/yourPage?0 (0 or other - wicket
page version)

Michael

Am Samstag, den 14.07.2012, 14:47 -0600 schrieb Alec Swan:
Thanks Michael. I read the first link before and the only thing that I
didn't do (and probable cannot do) is make my pages stateless.

As far as the second link to DisabledJSessionIDinUrlFilter.java,
doesn't it just strip off JSESSIONID from the URL? Is there something
that I missed?

Thanks,

Alec

On Sat, Jul 14, 2012 at 2:38 PM, Michael Mosmann mich...@mosmann.de
wrote:
Maybe this will help

https://cwiki.apache.org/WICKET/seo-search-engine-optimization.html

Or try this one:

https://github.com/michaelmosmann/wicket-praxis/blob/master/de.wicketpraxis--pom/webapp/src/main/java/de/wicketpraxis/web/thema/howto/servletfilter/DisabledJSessionIDinUrlFilter.java

Michael mosmann

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Alec Swan alecs...@gmail.com schrieb:

Thanks Josh, I upgraded to Tomcat7 and was able to disable cookies as
you suggested. It worked! This, however does not help me change 302
redirect to 200.

Is there any way I can make /lrm/ms/oid/123 return 200 just like
/lrm/network as explained in my original post?

Thanks,

Alec

On Sat, Jul 14, 2012 at 12:36 PM, Josh Kamau joshnet2...@gmail.com
wrote:
I read somewhere that :

When its first time you are accessing a page, tomcat doesnt know if
cookies
are supported.. so to be safe, it will embed the session id in the url.
IF
you then access another page, this time round tomcat knows what kind of
browser its dealing with ... and if cookies are supported, it wont embed
the session id in the url but will put it in a cookie..

Now to tell tomcat to always use the cookies , you add

session-config
tracking-modeCOOKIE/tracking-mode
/session-config

In your web.xml file..

Cheers
Josh

On Sat, Jul 14, 2012 at 8:30 PM, Alec Swan alecs...@gmail.com wrote:

Hello,

While working on my previous problem I found out that when I do a GET
to one of my bookmarkable pages, e.g. /lrm/ms/oid/123, I get a 302
redirect to /lrm/ms/oid/../../ms/oid/123.0;jsessionid=xxx. However,
when I do a GET to /lrm/network I get a 200 response and jsessionid is
set as a cookie in the response.

Re: Understanding Wicket redirect behavior

2012-07-14 Thread Michael Mosmann

Maybe this will help

https://cwiki.apache.org/WICKET/seo-search-engine-optimization.html

Or try this one:

https://github.com/michaelmosmann/wicket-praxis/blob/master/de.wicketpraxis--pom/webapp/src/main/java/de/wicketpraxis/web/thema/howto/servletfilter/DisabledJSessionIDinUrlFilter.java

Michael mosmann

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Alec Swan alecs...@gmail.com schrieb:

Thanks Josh, I upgraded to Tomcat7 and was able to disable cookies as
you suggested. It worked! This, however does not help me change 302
redirect to 200.

Is there any way I can make /lrm/ms/oid/123 return 200 just like
/lrm/network as explained in my original post?

Thanks,

Alec

On Sat, Jul 14, 2012 at 12:36 PM, Josh Kamau joshnet2...@gmail.com wrote:
I read somewhere that :

When its first time you are accessing a page, tomcat doesnt know if cookies
are supported.. so to be safe, it will embed the session id in the url. IF
you then access another page, this time round tomcat knows what kind of
browser its dealing with ... and if cookies are supported, it wont embed
the session id in the url but will put it in a cookie..

Now to tell tomcat to always use the cookies , you add

session-config
tracking-modeCOOKIE/tracking-mode
/session-config

In your web.xml file..

Cheers
Josh

On Sat, Jul 14, 2012 at 8:30 PM, Alec Swan alecs...@gmail.com wrote:

Hello,

/lrm/network is explicitly mounted as mountBookmarkablePage in
Application.init(). We are using Tomcat 6.0 and Wicket 1.4.17.

How can I make /lrm/ms/oid/123 return 200 just like /lrm/network?
Should we somehow mountBookmarkablePage each such page which we have
thousands of? Will upgrading to Wicket 1.5 help achieve this behavior?

Thanks,

Alec

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Re: Understanding Wicket redirect behavior

2012-07-14 Thread Michael Mosmann

Wait, i will check this again. AFAIK thats all you need. But i am not sure by
now...

Michael

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Alec Swan alecs...@gmail.com schrieb:

Thanks Michael. I read the first link before and the only thing that I
didn't do (and probable cannot do) is make my pages stateless.

As far as the second link to DisabledJSessionIDinUrlFilter.java,
doesn't it just strip off JSESSIONID from the URL? Is there something
that I missed?

Thanks,

Alec

On Sat, Jul 14, 2012 at 2:38 PM, Michael Mosmann mich...@mosmann.de wrote:
Maybe this will help

https://cwiki.apache.org/WICKET/seo-search-engine-optimization.html

Or try this one:

https://github.com/michaelmosmann/wicket-praxis/blob/master/de.wicketpraxis--pom/webapp/src/main/java/de/wicketpraxis/web/thema/howto/servletfilter/DisabledJSessionIDinUrlFilter.java

Michael mosmann

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Alec Swan alecs...@gmail.com schrieb:

Thanks Josh, I upgraded to Tomcat7 and was able to disable cookies as
you suggested. It worked! This, however does not help me change 302
redirect to 200.

Is there any way I can make /lrm/ms/oid/123 return 200 just like
/lrm/network as explained in my original post?

Thanks,

Alec

On Sat, Jul 14, 2012 at 12:36 PM, Josh Kamau joshnet2...@gmail.com wrote:
I read somewhere that :

When its first time you are accessing a page, tomcat doesnt know if cookies
are supported.. so to be safe, it will embed the session id in the url. IF
you then access another page, this time round tomcat knows what kind of
browser its dealing with ... and if cookies are supported, it wont embed
the session id in the url but will put it in a cookie..

Now to tell tomcat to always use the cookies , you add

session-config
tracking-modeCOOKIE/tracking-mode
/session-config

In your web.xml file..

Cheers
Josh

On Sat, Jul 14, 2012 at 8:30 PM, Alec Swan alecs...@gmail.com wrote:

Hello,

/lrm/network is explicitly mounted as mountBookmarkablePage in
Application.init(). We are using Tomcat 6.0 and Wicket 1.4.17.

Thanks,

Alec

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Re: Understanding Wicket redirect behavior

2012-07-14 Thread Michael Mosmann

Hi Alec,

Michael

Am Samstag, den 14.07.2012, 14:47 -0600 schrieb Alec Swan:
Thanks Michael. I read the first link before and the only thing that I
didn't do (and probable cannot do) is make my pages stateless.

As far as the second link to DisabledJSessionIDinUrlFilter.java,
doesn't it just strip off JSESSIONID from the URL? Is there something
that I missed?

Thanks,

Alec

On Sat, Jul 14, 2012 at 2:38 PM, Michael Mosmann mich...@mosmann.de wrote:
Maybe this will help

https://cwiki.apache.org/WICKET/seo-search-engine-optimization.html

Or try this one:

https://github.com/michaelmosmann/wicket-praxis/blob/master/de.wicketpraxis--pom/webapp/src/main/java/de/wicketpraxis/web/thema/howto/servletfilter/DisabledJSessionIDinUrlFilter.java

Michael mosmann

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Alec Swan alecs...@gmail.com schrieb:

Thanks Josh, I upgraded to Tomcat7 and was able to disable cookies as
you suggested. It worked! This, however does not help me change 302
redirect to 200.

Is there any way I can make /lrm/ms/oid/123 return 200 just like
/lrm/network as explained in my original post?

Thanks,

Alec

On Sat, Jul 14, 2012 at 12:36 PM, Josh Kamau joshnet2...@gmail.com wrote:
I read somewhere that :

When its first time you are accessing a page, tomcat doesnt know if cookies
are supported.. so to be safe, it will embed the session id in the url. IF
you then access another page, this time round tomcat knows what kind of
browser its dealing with ... and if cookies are supported, it wont embed
the session id in the url but will put it in a cookie..

Now to tell tomcat to always use the cookies , you add

session-config
tracking-modeCOOKIE/tracking-mode
/session-config

In your web.xml file..

Cheers
Josh

On Sat, Jul 14, 2012 at 8:30 PM, Alec Swan alecs...@gmail.com wrote:

Hello,

/lrm/network is explicitly mounted as mountBookmarkablePage in
Application.init(). We are using Tomcat 6.0 and Wicket 1.4.17.

Thanks,

Alec

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Re: serialization

2009-11-09 Thread Michael Mosmann

Am Montag, den 09.11.2009, 13:07 -0500 schrieb Sam Barrow:
 protected void populateItem(final ListItemValueObject item) {
   final Money price =
 getPricingService().calculatePrice(item.getModelObject());
   add(new Label(price, price.toString()));
 }

is Money serializable?

mm:)


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Re: When NOT to use models ?

2009-10-27 Thread Michael Mosmann

Am Montag, den 26.10.2009, 10:24 +0200 schrieb Martin Makundi:
  Hmm, maybe I'm missing something, but if you want to have EVALUATED once per
  request, I think the following should be sufficient. (unless I'm missing
  somtething)
 
 I want a generic centrally managed solution. I don't want to cache
 every model manually.

we are using this one:

http://www.wicket-praxis.de/blog/2009/01/03/modell-referenzen/

it's more like an model graph.. so you say

IModelListSomething dataFromDB=new LoadableDetachedModel() ...
IModelInteger countModel=new
CascadingLoad..ModelInteger,ListSomething(dataFromDB);
add(new Label(counter,countModel));

countModel.detach() is called from Label, and dataFromDB.detach() is
called fram countModel.

Because it's generic you can use it everywhere..

mm:)


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Re: wicket:enclosure ( setting visible when hidden on render )

2009-10-23 Thread Michael Mosmann

Am Freitag, den 23.10.2009, 09:25 +0200 schrieb Swanthe Lindgren:
 Try setOutputMarkupPlaceholderTag(true) on the component withing the 
 enclosure.

i think, that's not enough.. 
maybe i am wrong, but yes, you should use a markup container for this
kind of stuff.. 

 //Swanthe
 
 Douglas Ferguson wrote:
  I have a component that is wrapped with a wicket enclosure.
 
  When the page is rendered I set the component visible(false) which  
  make the entire wicket enclosure hidden.
 
  Then I set visible(true) during runtime and at the component to the  
  AjaxTarget.
 
  The component is not rendered.
 
  Is there a way to get this to work? Or do I have to explicitly add a  
  markup container if i want to start with it hidden and then display  
  later?
 
  D/
 
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Re: When NOT to use models ?

2009-10-23 Thread Michael Mosmann

Am Freitag, den 23.10.2009, 15:06 +0300 schrieb Martin Makundi:
 Hi!
 
 I have said that you might need to cache your model values, in some
 performance situations. If you do not use models, you do not need same
 kind of caching (because the value is fixed). Nevetheless, using
 models results in cleaner code, but I am dreaming of a centralized
 caching mechanism such that each model value would be evaluated only
 one time per render / model change.

evaluated only one time per render can be done with
LoadableDetachedModel .. 

or do i miss some point?

can you explain it a littly bit (a link to your original message?)

mm:)



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Re: Multiple AttributeModifier-s on a single tag

2009-10-23 Thread Michael Mosmann

Hi,

 I'm trying to add two AttributeModifiers on WebMarkupContainer and it 
 doesn't work.
 Only one of them is working, the last added one.
 Could anybody show me how to do it properly?

maybe you should use AttributeAppender, not AttributeModifier

mm:)



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Wicket Component Overview

2009-10-16 Thread Michael Mosmann

Hi,

i did some wicket component diagram stuff (model, listener etc.)

http://www.wicket-praxis.de/blog/2009/10/16/wicket-component-overview/

glad to see some reply on this..

mm:)



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Re: Ajax: Updating component outside Panel

2009-10-09 Thread Michael Mosmann

Hi,

 I have Index.java that displays a shopping cart from a custom shopping cart 
 panel (ShoppingCartPanel.java). This custom panel has a remove link for each 
 item, and clicking this removes the item from the list using Ajax. In 
 Index.java I also have a Checkout button that is set to visible when there's 
 items in the shopping cart. I need to refresh this component also using Ajax 
 when I press the remove link in the shopping cart panel, so that it is hidden 
 when the cart is empty. How do I update this component from my custom 
 shopping cart panel? Do I have to make the Checkout button a public variable 
 and refresh it using  target.addComponent(Index.checkout) in 
 ShoppingCartPanel.java, or is there an easier and more elegant way to do this?

.. you can visit each component on the current page and tell (interface)
it, that someone has changed something.. the component can now decide to
redraw itself.

Ignore the text, the code should tell the story:

http://books.google.de/books?id=9esdx8R-fJAClpg=PA104ots=ajkIysVFupdq=wicket%20AbstractAjaxEventpg=PA103#v=onepageq=wicket%20AbstractAjaxEventf=false

mm:)



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Re: bookmarkable pages from scala

2009-09-17 Thread Michael Mosmann

Am Donnerstag, den 17.09.2009, 08:06 +0300 schrieb Haim Ashkenazi:
 OK, I think I've found it. :)
 
 getResponsePage(Class) first links to a regular wicket url and only then
 redirects to a bookmarkable one. This is why it didn't work when
 invalidating the session :)

Any Questions so far? 
I did not have time to answer yours this day..

mm:)


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Re: Handling Hibernate session (LazyInitializationException)

2009-09-17 Thread Michael Mosmann

Hi,

  (Solution with no Spring is
 preferable).

Use Spring, because it will limit your headache.. 

Maybe this is usefull: 
http://www.wicket-praxis.de/blog/download/

use Link behind Praxisbuch Wicket Beispielcode for a maven-based
project with:
- Spring (open session in view filter, @SpringBean-Annotation support,
Hibernate UnitTest)
- Hibernate (Hibernate Annotation Support)

mm:)



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Re: Handling Hibernate session (LazyInitializationException)

2009-09-17 Thread Michael Mosmann

Am Freitag, den 18.09.2009, 00:35 +0200 schrieb Peter Ertl:
 as an further improvement use salve to completely remove your  
 headache :-)
 
http://code.google.com/p/salve

thank you.. interesting stuff.. 
do you have any experience in combination with hibernate?

mm:)

 Am 17.09.2009 um 23:51 schrieb Michael Mosmann:
 
  Hi,
 
  (Solution with no Spring is
  preferable).
 
  Use Spring, because it will limit your headache..
 
  Maybe this is usefull:
  http://www.wicket-praxis.de/blog/download/
 
  use Link behind Praxisbuch Wicket Beispielcode for a maven-based
  project with:
  - Spring (open session in view filter, @SpringBean-Annotation support,
  Hibernate UnitTest)
  - Hibernate (Hibernate Annotation Support)
 
  mm:)
 
 
 
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Re: bookmarkable pages from scala

2009-09-16 Thread Michael Mosmann

Am Mittwoch, den 16.09.2009, 16:32 +0300 schrieb Haim Ashkenazi:
 Hi
 
 I'm trying to run setResponsePage with a class parameter. According to the
 doc if I run:
 setResponsePage(MyPage.class)

some more code?

mm:)


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Re: bookmarkable pages from scala

2009-09-16 Thread Michael Mosmann

Hi,

After Session.invalidate everything is cleaned up.. 
change your code from

add (new SLink(gohome, {setResponsePage(classOf[HomePage])}))

to 

add(new BookmarkablePageLing(gohome, classOf[HomePage]));

and it will work..

mm:)

p.s.: the javacode for SLink.. is

add(new Link(gohome)
{
  onClick()
  {
setResponsePage(HomePage.class);
  }
}

.. so Url for this Link is not bookmarkable.. 


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Re: Slides

2009-09-12 Thread Michael Mosmann

Hi,

 I have slides from my Wicket presentation last night here in St. Louis.

On Page 20 you write 
  public Object getObject(Component component)
but 
  public Object setObject(Serializable object)
AFAIK 
  getObject(Component component) is deprecated.. use getObject() .. 

(http://cwiki.apache.org/confluence/display/WICKET/Working+with+Wicket
+models was wrong.. i have fixed it)

If you use wicket 1.4.x, you will benefit from improved model with
generics .. 
  new IModelString()
  {
public String getObject()
{
  ..
}
  ..
  }

mm:)



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Re: RefreshingView not Refreshing

2009-09-11 Thread Michael Mosmann

Hi,

 I'm wondering why the small change (see comments)
 to my RV causes it to not refresh automatically.
 A browser refresh shows the changes.

The Form submit does not call the page constructor, but a browser
refresh does.

mm:)



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Re: Wicket timed events on page - how to?

2009-09-11 Thread Michael Mosmann

Am Freitag, den 11.09.2009, 12:49 +0200 schrieb Tomasz Dziurko:
 I am writing an application for testing users and two functionalities
 I need to implement are:
 1. show/hide some components on the page after specified time (few seconds)
 2. redirect to next page after specified time
 
 I was wondering how to do this, I did some google search and seems I
 need to extend AbstractAjaxTimerBehavior. Is it correct way or maybe
 another, better solution exists?

yes.. it is the correct way..

for 1. you can use AjaxSelfUpdatingTimerBehavior (extends
AbstractAjaxTimerBehavior)... :)

maybe it works for 2. too..

mm:)


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Re: RefreshingView not Refreshing

2009-09-11 Thread Michael Mosmann

Hi,

 Thanks, but I don't know what that implies.

If you post a form, then wicket will get the current page from session
and call the onSubmit() for the form component. Everything else is
allready there.. the RV etc.

If you reload a page, wicket will build the page again.. your old page
is gone. So for instance if a model is not detached correctly, wicket
will use old data (don't know if the problem is in this area). If you
reload the page, everything is thrown away and build from scratch. So if
your LDM is not bound to any component, detach() is never called.. the
old stuff is used.

So please send more code..

 Should I put the RV in the form?

no..

 Should I use some Ajax so I can target.addComponent(RV) ?

no.. because if it does not work without ajax, it will not work with
it..

 And most of all, why did my other variation work?
 It seems that the RV was being refreshed then.

wich wicket version do you use?

mm:)

 -troy
 
 On Fri, Sep 11, 2009 at 2:47 AM, Michael Mosmann mich...@mosmann.de wrote:
  Hi,
 
  I'm wondering why the small change (see comments)
  to my RV causes it to not refresh automatically.
  A browser refresh shows the changes.
 
  The Form submit does not call the page constructor, but a browser
  refresh does.
 
  mm:)
 
 
 
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Re: Displaying column totals for a DefaultDataTable

2009-09-11 Thread Michael Mosmann

Hi,

 I have a DefaultDataTable with several amount colums. I need to display
 a Totals row at the bottom of the table to show the column totals.

 I have searched the forum, and only found suggestions to use
 addBottomToolbar.

correct..

 However, I don't know how to do this? Looking at Wicket's HeaderToolbar,
 I see that I would need to pass the DataTable and the
 SortableDataProvider to my TotalsToolbar.

yes.. correct.

 But, how would the toolbar get the data to display?

public class TotalCounter extends AbstractToolbar
{

public TotalCounter(final DataTable dataTable)
{

IModelInteger model=new LoadabledDetachedModelInteger()
{
  public Integer load()
  {
return dataTable.size()
  }
}

WebMarkupContainer span = new WebMarkupContainer(span);
add(span);
span.add(new AttributeModifier(colspan, true, new ModelString(
String.valueOf(table.getColumns().length;

span.add(new Label(count,model));
}

 What would the html markup for this toolbar be like?

wicket:panel
  tr class=navigation
td wicket:id=span
  span wicket:id=counter/counter
/td
  /tr
/wicket:panel
 

 Would greatly appreciate if someone could please provide some sample
 code.

maybe this will work out of the box, but not sure.. 
(have a look into the wicket code.. .. it will help a lot)

mm:)


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Re: Displaying column totals for a DefaultDataTable

2009-09-11 Thread Michael Mosmann

 Your code does work to display the number of columns in the dataTable, after
 I changed dataTable.size() to dataTable.getRowCount(). It did help me in
 getting started with writing my own toolbar.

Ok.. id did it in this email client, which has very poor development
support:) but it was good enough to show you the way:) ..

 However, my table has several amount columns and I want to display the sum
 of the amounts in each column at the bottom of that column.

for the rows displayed or all rows in this columns?
i think, you mean the second.. so it is not trivial, because you should
not iterate over all entries to build up this numbers..

maybe this is a valid solution:

you have somewhere a function which gives you the list of items.. maybe
ListMyEntity MyEntity.getList(offset,count).. you need a function
which returns on Instance of MyEntity filled whith sum for each property
(select sum(prop1),sum(prop2)... - MyEntity.setProp1(sum1) ..)

than take a DataGridView .. see DataTable.java to get a picture of what
you need.. so you can reuse the List of IColumn.

if you have any further questions.. send some code.

mm:)

there are many good wicket books available .. do you have one? 


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RE: Passing parameters from markup to panels

2009-09-10 Thread Michael Mosmann

Am Donnerstag, den 10.09.2009, 14:03 +1000 schrieb Chris Colman:
  why? what is different between a 10 or a 50 item song panel? the
 number
  of items? you should anyhow use a ListView which repeats the her is
 the
  song-block as many times as you want to..
 
 It is using a ListView - the desire was to provide an easy way for the
 UI guy to specify a row count in the markup.

ok.. i got this.. i would put it into an property file of the component
where the SongPanel is used and put a ResourceModel as parameter to
SongPanel

   Let's say we make
  
   SongChartTop10Panel and SongChartTop50Panel
  
   (with .java and .html markup for each)
  
   Now he says he wants to make a top 20 list for one page and a top 40
   list for another page... the inefficiency and non OO nature of this
   approach becomes apparent.
  
  why do you make this?
 
 They each derive from SongChartTopPanel and invoke the constructor with
 a different row count - but without parameterization and using standard
 simple wicket devices (i.e. not component resolvers) then we need a
 separate markup and separate .java class for each panel that has a
 different number of songs displayed.

you can override getVariation to switch between markup.. so if you use
the ResourceModel for this, this should be easy..

   If a simple parameter were able to be passed to the panel we could
 reuse
   that panel code to show anywhere from 1 to n songs.
 
 Yes but you'd still require a separate markup for each one I would think
 - without going the with component resolver approach.

i am not sure, that i understand this problem as it is.. so excuse, if
my solutions does not fit..

 The web designer will have a nice 'Top 10' image above the panel so I
 didn't want to put it in the hands of the user who might change the
 rowcount to 13 or something. 'Top 13 songs around the country this week'
 doesn't sound right - especially if the image above it says 'Top 10'.

ok..
some code to show you my view of this problem and the solution (may not
fit)..


class SongPanel ..
{
  SongPanel(String id,ResourceModel topCountAsStringModel)
  {
final int count=getCountAsInt(topCountAsStringModel,10);
IModelSong model=new LoadabledDetachModel()
{
  load() { ... getSongs(count) }
}
add(new ListView(songs,model) {..}
add(new Image(topImg,new ResourceReference(getClass(), topImage,
getLocale(), top+count)))
  }

  getVariation()
  {
return top+count;
  }
}


SongPanel.html
wicket:panel
  Top 10 (default)
  img wicket:id=topImg
  tabletr wicket:id=list.../table
/wicket:panel



SongPanel_top50.html
wicket:panel
  Top 50 
  img wicket:id=topImg
  tabletr wicket:id=list.../table
/wicket:panel



ComponentA(String id)
{
  add(new SongPanel(songs,new ResourceModel(songsInList,));
}



ComponentA.properties:
songsInList=10;



ComponentB(String id)
{
  add(new SongPanel(songs,new ResourceModel(songsInList,));
}



ComponentB.properties:
songsInList=50;



..
if you enable autolink, then this image-stuff could be much easier, so
the web design guy have much control and you have much OO as you can..

.. hope this will help a little

mm:)



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RE: Passing parameters from markup to panels

2009-09-09 Thread Michael Mosmann

Am Dienstag, den 08.09.2009, 09:10 +1000 schrieb Chris Colman:
 When my web designer guy wants control over whether he wants to place
 either 10 songs or 50 songs into the 'top of the charts' panel I
 consider that to be something that should definitely not be something we
 have to make separate .java panel classes and markup to achieve.

Ok.. maybe you can use this:
In your Panel you can use getString(EntriesInMyPanel) and convert this
to Integer. You have to put a EntriesInMyPanel=10 in you
MyPanel.properties-File, so that the web designer can change this,
without changing the code.

 To have to get a programmer to adjust code to change the number of items
 displayed in a list would be the subject of thunderous laughter in any
 desktop app development environment - but yet I see that web app
 development changes all the rules about what's funny and what's not =)

You can not always express some changes to a display in a simple
Number.. especially in desktop development this could lead to a more
complex rule: show me as many songs as far the fit into the space used
by this component, but show at least 3 entries full and the rest in
compressed form. I did not see any simple number in this. So IMHO you
have to write code for this.

By the way.. maybe the best person to choose the right number is the
user.

 We programmer propeller heads can do all the smarts on the Java side to
 use a single 'SongChartPanel' to display any number of songs from a list
 based on a single parameter - so long as we can get that parameter
 somehow. It's still MVC because NO code exists in the presentation layer
 - only a parameter is now able to be passed in.

You can pass the Parameter into the Component as Parameter or as Model.
But IMHO there is no advantage for a static solution like putting it
into a markup- or a propertyfile.

 .. and it's something
 that directly affects the presentation side that he would want control
 over. That gives him power.

because html is limited in a way, that this power is necessary
sometimes. but it's not a good idea. it's more a compromise.

 Without this power I have to get the programmers to create a different
 panel and markup for each different song chart panel even though the
 code will be exactly the same except for the terminating condition of a
 for loop.

why? what is different between a 10 or a 50 item song panel? the number
of items? you should anyhow use a ListView which repeats the her is the
song-block as many times as you want to..

  That's not OO and it's not reusability. It would be funny if
 it wasn't true!

it is not true.. so i think you did not get the picture.. or we are
misunderstanding each other..

 Let's say we make
 
 SongChartTop10Panel and SongChartTop50Panel
 
 (with .java and .html markup for each)
 
 Now he says he wants to make a top 20 list for one page and a top 40
 list for another page... the inefficiency and non OO nature of this
 approach becomes apparent.

why do you make this?

 If a simple parameter were able to be passed to the panel we could reuse
 that panel code to show anywhere from 1 to n songs.

class SongChartPanel
{
  public SongChartPanel(String id,final int numberOfSongs)
  {
LoadableDetachedModelListSong songs=new
LoadableDetachedModelListSong()
{
  public ListSong load()
  {
return Songs.getTopX(numberOfSongs);
  }
}

add(new ListViewSong(list,songs)
{
  public void populateItem(ListItemSong item)
  {
item.add(new Label(name,item.getModelObject().getSongName()));
  }
});
  }
}

If you change numberOfSongs to a Model.. the User could change the
number (Form, Link,.. anything).

mm:)



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Re: Update ListView using ajax

2009-09-07 Thread Michael Mosmann

Hmm,..

can you post your markup? this code does work with my own markup..

did you use div wicket:id=resultcontainer or did you use
wicket:container wicket:id=resultcontainer .. do you see something
in wicket-ajax-debug panel? any error-message? any ajax-response?

 ...and im pretty sure that i already some code in previous version of wicket
 and it work..but i dont know what im missing right now. maybe worst case i
 will do is to go back to old version of wicket but i want the latest
 version.

if this does not work with wicket 1.4.1, then it does not work with any
wicket version.. 

mm:)

-- 
Michael Mosmann - http://www.wicket-praxis.de/blog 


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Re: Update ListView using ajax

2009-09-06 Thread Michael Mosmann

Am Sonntag, den 06.09.2009, 01:05 +0800 schrieb Eman Nollase:
 Hello,
 
 For no apparent reason the listview is not updating when i targeted it. im
 using wicket 1.4.1.

The ListView ist replaced with it's childs. Therefore you can not update
the ListView. The simple solution to this is a WebMarkupContainer around
the ListView.

mm:)

-- 
Michael Mosmann http://www.wicket-praxis.de/blog/


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Re: Update ListView using ajax

2009-09-06 Thread Michael Mosmann

Hi,

 i think i already put it in the webmarkupcontainer and target the
 markupcontainer.

ok.. 
my fault.. sorry.

can you post some more code.. i am not sure to see the full picture yet.

 For no apparent reason the listview is not updating when i targeted it. im
 using wicket 1.4.1.

does it work without ajax?

mm:)



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Re: using a panel inside dropdown

2009-09-03 Thread Michael Mosmann

Am Donnerstag, den 03.09.2009, 06:56 -0700 schrieb fachhoch:
 Is this possible or not , please tell me if there is any option to put a
 panel inside a dropdownchoice ?

AFAIK you can not place any tag inside an select-Tag.. so you need some
javascript-menu-stuff...

.. don't know, if you can find something on wicketstuff.org

mm:)


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german wicket book example code

2009-09-03 Thread Michael Mosmann

Hi,

.. you can download (http://www.wicket-praxis.de/blog/download/) all
code examples from my german wicket book (praxisbuch wicket). All you
need is java and maven, so feel free to test it.

Michael Mosmann



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Re: DataTable NavigationToolbar visibility problem

2009-08-28 Thread Michael Mosmann

  Using
 wicket+wicket-extensions 1.4.0.  How do I ensure that the nav toolbar
 reappears properly when the number of results become pageable again?

use wicket 1.4.1 as it's a bug in wicket 1.4.0

mm:)


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Re: Embedding a Wicket Page inside a DIV

2009-08-26 Thread Michael Mosmann

Am Mittwoch, den 26.08.2009, 01:29 -0500 schrieb Avinash palicharla:
 I have a page built in SpringMVC. I have a iFrame in this page that loads a
 Wicket Page. I want to replace the iFrame with a DIV and load the Wicket
 page inside the DIV using Ajax.

good luck with this one..
does this page come from the same server?

 I used Prototype to load the wicket page. The page loads but the wicket
 javascript does not work anymore. I guess this is because the head tag
 from the wicket response is not processed.

yes...
1) you can process the head
2) you can fake it, if you include wicket-*.js in your page

mm:)



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Re: How to detect model leakage into session

2009-08-26 Thread Michael Mosmann

Am Mittwoch, den 26.08.2009, 21:29 +0200 schrieb Bas Gooren:
 Hi all,
 
 My problem is as follows: I use LoadableDetachableModels throughout my 
 application, and have made sure I never use a model without it being attached 
 to a component to prevent models which never get their detach() method called.
 Nonetheless, after hitting two fairly simple pages which list some database 
 data in my application, I get a 100kb session which is filled with literal 
 strings from model objects.
 
 I've fired up my (Eclipse) debugger and have stepped through all models on 
 one of the pages after setting a breakpoint on the pages onDetach() method. I 
 see all LoadableDetachableModels are detached, so I have no idea what's 
 causing this.
 
 What would be a good strategy for finding the source of this problem?

IMHO this could be a solution to your problem:

http://www.wicket-praxis.de/blog/2009/01/03/modell-referenzen/

CascadingLoadableDetachableModel will detach it's child so that for any
used model detach will be called.

mm:)


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Re: Regarding datepicker popup when inputfield pressed

2009-08-21 Thread Michael Mosmann

Am Freitag, den 21.08.2009, 14:33 +0200 schrieb copenhag copenhagen:
 Has no one really needed the calendar popup when the input field is
 selected/pressed ?

sorry.. (btw. IMHO it is annoying ..)

i searched for some solution.. but i think you have to
a) take a look into this yui magic
b) ask on dev list for some infos about an extension of the current
datepicker
c) choose some different.. 
d) ..?

mm:)


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Re: Prefix URL for skinnable site

2009-08-20 Thread Michael Mosmann


 Where would be the right place to implement this functionality?

I think, you should use MixedParamUrlCodingStrategy

mm:)



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Re: Prefix URL for skinnable site

2009-08-20 Thread Michael Mosmann

Am Donnerstag, den 20.08.2009, 15:55 +0200 schrieb Gianni:
 On 20/ago/09, at 14:47, Michael Mosmann wrote:
 
 
  Where would be the right place to implement this functionality?
 
  I think, you should use MixedParamUrlCodingStrategy
 
  mm:)
 
 That's only going to work with  bookmarkable pages though.

Ok..
maybe HybridUrlCodingStrategy should help.. 
maybe i missed the point..

mm:)


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Re: Regarding datepicker popup when inputfield pressed

2009-08-20 Thread Michael Mosmann

Am Donnerstag, den 20.08.2009, 16:00 +0200 schrieb copenhag copenhagen:
 Maybe it's because i am a new Wicket user, but i tried that, without any
 luck.
 
 I can't figure out how the calendar is called when clicked on the icon, it's
 pretty tricky for me how
 it's done.

IMHO yui is doing some magic stuff...

maybe this will work

DatePicker render something like
---
initStart3 = function() {
 Wicket.DateTime.init( {

---

to header..
where Start3 is the WicketID of the input

you should extend the input tag with
--
onfocus=initStart3.showCalendar()
--

not testet..
mm:)


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Re: using hibernate pojo as model instead of dto

2009-08-20 Thread Michael Mosmann

Am Donnerstag, den 20.08.2009, 18:59 -0700 schrieb fachhoch:
 Is this is a good design or using DTO is a good desing ?

it depends.. (IMHO there are only some situations where you can see some
benefit in DTO) ..

but you have to use LoadableDetachableModels or custom Model
implementations to avoid LazyLoadingExceptions

for short:
---
request comes in
  { open session for hibernate in OSV }
  render compontent
ask model for data
  model get it from hibernate with primary key
  render finished
throw temporary data away
  call detach() on model
model clears any reference to the hibernate object
  { close session for hibernate in OSV }
response goes out
---

mm:)

 
 
 Mathias Nilsson wrote:
  
  You can use entities as models. Just use LoadableDetachableModels to avoid
  LazyLoadingExceptions
  
 


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