from:"jweekend"


Our next London Wicket Event will be held on Saturday, November 21st.
This is going to be quite some event again, with Matej Knopp (SVK), Jeremy 
Thomerson (USA) and Alastair Maw (UK), all core developers, amongst our 5 or 6 
presenters.
I am still working on securing a suitable location and fine tuning the schedule 
(probably at least 5 or 6 hours) and the exact format, but keep your diary 
clear if you'd like to come along and we will set up registration at the usual 
place [1] in the next few days (do not register until we've updated the data 
for the registration page) once the location/format/logistics are nailed down.
Watch this space ...

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


[1] http://jweekend.com/dev/LWUGReg


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Leg Up for Wicket, Spring, Guice, JPA, Warp, EclipseLink, Hibernate ... projects


We have launched jWeekend's Leg Up page [1].

You can generate a command and run it at your console to create a simple 
project using one of our archetypes. The projects you will generate will 
include enough configuration, code and/or some tests to get you started, 
quickly. Our archetypes currently support various combinations of Spring, 
Guice, WarpPersist, JPA (with one or more implementation from EclipseLink, 
Hibernate, OpenJPA) and Wicket.

Let us know if this is useful and if you'd like to see more combinations. Also 
feel free to raise any issues [2].

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


[1] http://jweekend.com/dev/LegUp
[2] http://code.google.com/p/legup/issues/list


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Re: Leg Up for Wicket, Spring, Guice, JPA, Warp, EclipseLink, Hibernate ... projects


Jahid,

Thanks - a little Tomcat PERM_GEN issue. 
Should be OK now, but at the next scheduled restart we'll bump it up a bit.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com

 

Jahid wrote:
 
 On Tue, 2009-10-06 at 14:47 +0100, jWeekend wrote:
 http://jweekend.com/dev/LegUp
 
 is that really working? coz , when i clicked on Generate Maven Command
 button, it took me to http://jweekend.com/dev/HomePageBody
 
 
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Re: Leg Up for Wicket, Spring, Guice, JPA, Warp, EclipseLink, Hibernate ... projects

Erik,

Thanks. We'll review that soon - it is our intention but we need to be
ready to take care of the project. Just for the moment, we'll take on ideas
for new archetypes, and feel free to contact me via our site if you have
some particular ideas and need stuff included quickly.
Ideas for further project templates include Scala and Java and maybe WiQuery
and possibly Lucene...

Regards - Cemal
jWeekend
OO Java Technologies, Wicket Training and Development
http://jWeekend.com

Erik Post-5 wrote:

Hey, that's great! Is there any way to contribute to this?

Thumbs up,
Erik

2009/10/6 jWeekend jweekend_for...@cabouge.com

We have launched jWeekend's Leg Up page [1].

You can generate a command and run it at your console to create a simple
project using one of our archetypes. The projects you will generate will
include enough configuration, code and/or some tests to get you started,
quickly. Our archetypes currently support various combinations of Spring,
Guice, WarpPersist, JPA (with one or more implementation from
EclipseLink,
Hibernate, OpenJPA) and Wicket.

Let us know if this is useful and if you'd like to see more combinations.
Also feel free to raise any issues [2].

Regards - Cemal
jWeekend
OO Java Technologies, Wicket Training and Development
http://jWeekend.com

[1] http://jweekend.com/dev/LegUp
[2] http://code.google.com/p/legup/issues/list

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Re: Leg Up for Wicket, Spring, Guice, JPA, Warp, EclipseLink, Hibernate ... projects


Erik,

No such prejudice here: a Wicket with EJB 3+ archetype is a very good idea
and I was already planning on us setting up an archetype for JBoss and
wicket-javaee [1] (that contrib library just works by the way - we've used
it with no problems so far on a couple of projects, one with JBoss - and
IIRC RedHat finally did publish a decent Maven2 repo).

I have nothing against a link from the Wicket QuickStart page either, but we
are not necessarily promising instantaneous support for users of these
archetypes - the idea is just to provide a well-proven starting point for
people wanting to skip the sometimes huge (and often off-putting) effort to
work out how all these frameworks/libraries and the multitude of version
play nicely together (not to mention figuring out all the transitive
dependencies and how to best write tests and other, boiler-plate
bootstraping code). 

By the way, we use these archetypes ourselves too, and they do save us
plenty of time - it's one less  (often non-trivial)  thing to worry about
when you start your project or just want to experiment with/learn how to use
one of these frameworks/libraries. 

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com

[1]
http://wicketstuff.org/confluence/display/STUFFWIKI/wicket-contrib-javaee






Erik Post-5 wrote:
 
 Hi Cemal,
 
 On Tue, Oct 6, 2009 at 5:05 PM, jWeekend jweekend_for...@cabouge.com
 wrote:
 
 Thanks. We'll review that soon - it  is our intention but we need to be
 ready to take care of the project. Just for the moment, we'll take on
 ideas
 for new archetypes, and feel free to contact me via our site if you have
 some particular ideas and need stuff included quickly.
 
 Great! I would like to suggest an EJB archetype. EJB seems to be
 fairly impopular amongst Wicket people, but what with the upcoming
 changes  to EJB (version 3.1, no XML, a Lite' web profile) and Spring
 (3.0, proprietaryish goings-on) I think EJB's are looking
 comparatively sweet.
 
 By the way, it would be pretty cool to reference your page from the
 Wicket quickstart page, wouldn't it? Things are pretty scattered atm
 and I think this makes Wicket needlessly hard to get into.
 
 Ideas for further project templates include Scala and Java
 
 I'm experimenting with this atm from an adapted version of Wicketopia,
 and yeah, it would have been great to have had an archetype for this
 ;)
 
 Cheers,
 Erik
 
 Erik Post-5 wrote:

 Hey, that's great! Is there any way to contribute to this?

 Thumbs up,
 Erik

 2009/10/6 jWeekend jweekend_for...@cabouge.com

 We have launched jWeekend's Leg Up page [1].

 You can generate a command and run it at your console to create a
 simple
 project using one of our archetypes. The projects you will generate
 will
 include enough configuration, code and/or some tests to get you
 started,
 quickly. Our archetypes currently support various combinations of
 Spring,
 Guice, WarpPersist, JPA (with one or more implementation from
 EclipseLink,
 Hibernate, OpenJPA) and Wicket.

 Let us know if this is useful and if you'd like to see more
 combinations.
 Also feel free to raise any issues [2].

 Regards - Cemal
 jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com

 [1] http://jweekend.com/dev/LegUp
 [2] http://code.google.com/p/legup/issues/list

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Re: Client-side treeView


Paul,

Take a look at Alastair's  presenttaion called something like A Drag And
Drop List Editor [1] and the accompanying source code.

I don't think we have a tree publicly available yet in WiQuery [2] but for
sure you should get some good ideas there even if you don't want to use it.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com

[1] http://jweekend.com/dev/ArticlesPage
[2] http://code.google.com/p/wiquery/


PaulH98 wrote:
 
 
 Michael O'Cleirigh wrote:
 
 Hi Paul,
 
 What I would do would be to find a javascript implementation that does 
 what you want and then have the selection events fill in a hidden field 
 which will then be available on the server side when the form is 
 posted.   This would be similar to how the Palette works in 
 wicket-extensions
 
 You then define a custom IConverter to convert the string input from the 
 hidden field into the IModelListLeaf or IModelListNode or what 
 ever makes sense for your model..
 
 There is probably something in wicket-stuff already but here is a link 
 to a jquery plugin for a tree table:
 http://blog.cubicphuse.nl/2008/11/12/jquery-treetable-2-0
 
 Regards,
 
 Mike
 
 
 Thanks Mike... Is there any document on how to write such a component like
 Palette that communicates with javascript? I just skipped through the
 Palette java an js source code and found they are kind of hard to
 understand. Wicket in Action does not seem to cover this topic either.
 
 
 

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Re: Ajax: Updating component outside Panel


Magnus,

One way, for example. is to pass in a component, or even a list of
components, to the ShoppingCartPanel's constructor and your onClick could
then do the necessary. Since your ShoppingCartPanel knows it going to use
AJAX, its constructor may also choose to setOutputMarkupId(true) on the
passed in components.

BTW, is Beer a special kind of Norwegian cheese then?

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com



Magnus Haraldsen Amundsen wrote:
 
 Hi,
 
 I'm following the Cheesr examples in the Wicket in Action book and have
 met a problem when ajaxifying it.
 
 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?
 
 Index.java - http://pastebin.com/m76c0eb71
 ShoppingCartPanel.java - http://pastebin.com/m70f20055
 
 Regards,
 
 Magnus
 
 

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Re: Page inheritance problem


Jens,

Your super class could declare an 
abstract protected void getThatPanelIWantSometimes() 
method that the children can then implement to return whatever they like and
then the ball's back in the parent's court.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com



mcbain wrote:
 
 Hi experts,
 
 I have a Page class with serves as base html-template for the derived 
 pages. (e.g. http://www.javalobby.org/java/forums/t69357.html)
 For some special needs, subclass-markup should be placed in some element 
 managed by wicket and not at the root.
 
 base.html
 body
 div wicket:id=superDiv
   wicket:child/
 /div
 /body
 
 My workaround currently is, that the Base-class provides a getSuperDiv() 
 method, wich must be used from
 the subpages to add their content to.
 
 SubPage(String) {
 super(...);
 
 // NOW, wrong: add( new Label(hello,Hello));
 
 // CORRECT
 getSuperDiv().add( new Label(hello,Hello));
 }
 
 Anybody, knows some more clean solution to this?
 Maybe the root-Container for the subpages can be set somehow.
 
 Thanks
 Jens
 
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Re: Page inheritance problem


Jens,

That indeed could be dangerous (if the subclass implementation refers to
subclass state that will not be initialised yet) - you can addOrReplace the
returned component in onBeforeRender.
This solution is nothing to do with the wicket:child/extension inheritance
by the way, that will still work as per normal. You're just asking the
children to supply some component the super-class will place in its bit of
the markup (ie outside of wicket:child).

Does that make sense?

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com
 


mcbain wrote:
 
 Hmmm... 
 this effectivly not uses the wicket:child/ thing for the
 inner-subclass-components.
 If i do so, from the Java-side its really bad to invoke subclass-methods
 from super-contructors.
 Can the invocation of the getThatPanelIWantAlwaysButAtCertainLocation()
 method be deferred 
 somehow??
 
 Regards
 Jens
 
 
Jens,

Your super class could declare an 
abstract protected void getThatPanelIWantSometimes() 
method that the children can then implement to return whatever they like
and
then the ball's back in the parent's court.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com
 
 
 
 jWeekend schrieb:
 
 -- 
 dipl. inform jens zastrow
 
 phone | +49.152.04840108
 mail  | m...@jens-zastrow.de
 web   | http://jens-zastrow.de
 xing  | http://www.xing.com/profile/Jens_Zastrow
 
 
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Re: Page inheritance problem


Jens,

MarkupContainer#isTransparentResolver (but Igor says use it at your own
risk!)

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com



mcbain wrote:
 
 The SuperDiv component is just a WebMarkupContainer
 I just tried to find the getTransparentResolver() method, but without
 success...
 
 
 Igor Vaynberg schrieb:
 
 -- 
 dipl. inform jens zastrow
 
 phone | +49.152.04840108
 mail  | m...@jens-zastrow.de
 web   | http://jens-zastrow.de
 xing  | http://www.xing.com/profile/Jens_Zastrow
 
 
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Re: [WicketStuff] Iolite

2009-10-02 Thread jWeekend


Nino,

We developed these archetypes primarily for commercial usage (training and
client apps) but are now looking to make them publicly available (ideally
with Apache or GPL/MIT licences) because they could be useful for other
developers, not least people new to Wicket (or new to JPA or Guice or
Spring, all with or without Wicket experience) and give them a way to get
started quickly with a fully functional project; POM, simple working code,
database with test data (where appropriate) and the config that makes it all
hang together. As you've no doubt experienced, one also has to test very
carefully that the various versions of all the included frameworks/libraries
play nicely together (eg Spring 2.5.6 is fussy about the version of JUnit4
to use ...) etc, and the possible combinations are quite overwhelming, even
off-putting for someone who just wants to try stuff out without spending all
day getting the config right.

Many of our archetypes include Wicket, but some don't. WicketStuff is not
the right place for them to live, for now.

We will make this stuff publicly available later this month, either on one
of jWeekend's servers or one of the popular project hosting sites. Then
we'll know better if people even find them useful and can reconsider whether
or not we should merge with any existing projects and/or host our archetypes
elsewhere.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com





nino martinez wael wrote:
 
 Great! So should these be merged into Iolite? Anyhow the nice thing
 would
 be to put it into wicketstuff..
 
 regards Nino
 
 2009/9/29 richardwilko richardjohnwilkin...@gmail.com
 

 Hi,

 We have been developing a few useful archetypes for our own client
 projects
 and courses.
 Amongst others, we have

 Wicket/Guice
 Wicket/Guice/Warp/Hibernate
 Wicket/Guice/Warp/JPA
 Wicket/Spring/JPA
 Spring/JPA/openJPA
 Spring/JPA/EclipseLink
 Spring/JDBC

 All include a running sample application with correct dependencies.


 We're currently deciding which jWeekend server to host these on (and
 their
 catalog) and probably the source


 Regards - Richard Wilkinson
 Developer, jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com




 nino martinez wael wrote:
 
  Hi Guys
 
  I've been using Guice for a while together with warp persist and
 dynamic
  finders. Would it be of any interest to switch Iolite to Guice? Please
 say
  if it has interest then I might do it, but won't if nobody uses it.
 
 
  http://www.wideplay.com/guicewebextensions2
  http://www.wideplay.com/dynamicfinders
  http://code.google.com/p/google-guice/
 
  Regards Nino
 
 


 -
 http://richard-wilkinson.co.uk My blog: http://richard-wilkinson.co.uk
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Re: August London Wicket Event (just a drink?)

2009-09-23 Thread jWeekend


Ioannis,

It's good to hear from you - I hope you and your family are well!
I have been talking to 2 guest presenters we are flying in from Europe and to potential hosts of our next event just this week; I will make an announcement as soon as everything is confirmed - the next date will probably be in the first week of December, but I may fix something on a smaller scale before then as well. 


I think we may also be organising a quiet drink or bite to eat next week - let 
me know if you're around.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development
http://jWeekend.com



2009/9/23 Ioannis Mavroukakis imavrouka...@gameaccount.com:

Oct 7 is looming and is the page updated? nooo! :-P

Y.

On 5 Aug 2009, at 20:18, jWeekend wrote:


As many of our guests enjoy their hard-won summer holidays, we will hold
our next London Wicket Event on October 7th (dates/location/presentation TBC
here soon).
In the meantime, for those of you who may be about to experience
withdrawal symptoms missing our  apres-Wicket refreshments, we're fixing a
quiet drink on Monday evening. Send us a note on the jWeekend Contact Us
page if you can make it and I'll send you a confirmation the venue (central
London) and times (19:00ish) when they're fixed.

Regards - Cemal
jWeekend
OO  Java Technologies
http://jWeekend.com


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maven/quickstart question

2009-09-23 Thread jWeekend


Chris,

Maven creates a local repository of libraries your projects depend on. Take a 
look under .m2 in your home directory.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development
http://jWeekend.com



I've been using wicket under for a while now, always using ant, but now
I have to create a quickstart app and I'm new to maven...

I've created the quickstart app and it runs under Jetty no problem but
where does it store the Wicket and Jetty .jars?

They don't seem to be under the directory I created using the maven
'archetype:create' command.

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re: FXValidationAjaxHandler - Javascript not added if component is set visible(false) in page constructor

2009-09-23 Thread jWeekend


Chris,

The fact that you've chosen to use Wicket probably shows there's not so much 
danger of that!

To better see what's going on, try the snippet below in the project you attached 


   // ... mark t2 final and
   // append this to your BasePage constructor
   con.add(t2.setOutputMarkupId(true));
   add(new AjaxLink(toggleVisiblity){
  @Override
  public void onClick(AjaxRequestTarget target) {
  t2.setVisible(!t2.isVisible());
  target.addComponent(t2);
  }
   });

Fix your BasePage.html accordingly eg, add an anchor to the body with 
wicket:id=toggleVisiblity.

When you fire up your app, click on that link once and you can use FireBug in Firefox to 
verify that the onblur code you wanted is indeed in place.

Is that the effect you were after?

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development
http://jWeekend.com

PS Nabble is not showing posts to our list (I think it's pointing back to 
SourceForge again!) so I am replying here in case you need a solution quickly 
and this happens to be the actual issue you are faced with!



maybe i'm to stupid to understand what you mean.
so please provide an example.
thx

-Ursprüngliche Nachricht-
Von: Giambalvo, Christian [mailto:christian.giamba...@excelsisnet.com]
Gesendet: Do 24.09.2009 02:45
An: users@wicket.apache.org
Betreff: AW: FXValidationAjaxHandler - Javascript not added if component is set 
visible(false) in page constructor
- Hide quoted text -

well, it makes no sense to add the javascript to another container.
how should i validate the textfields if the javascript points to a different 
component?
or could you give me an example?


-Ursprüngliche Nachricht-
Von: Igor Vaynberg [mailto:igor.vaynb...@gmail.com]
Gesendet: Do 24.09.2009 02:32
An: users@wicket.apache.org
Betreff: Re: FXValidationAjaxHandler - Javascript not added if component is set 
visible(false) in page constructor

i meant add the javascript to a container that is visible.

components that are not visible do not render their javascript, it
wouldnt make any sense for them to do otherwise.

-igor

On Wed, Sep 23, 2009 at 5:16 PM, Giambalvo, Christian
christian.giamba...@excelsisnet.com wrote:

i'm sorry, but doesn't work.

i attached a simple project.
i added the needed components to a webmarkupcontainer.
instead of panels this time i used requiredtextfields to keep it as simple
as possible.
one textfield is visible the other invisible.

here is the generated markup:

?xml version=1.0 encoding=UTF-8?
html xmlns=http://www.w3.org/1999/xhtml;
xmlns:wicket=http://wicket.apache.org/dtds.data/wicket-xhtml1.4-strict.dtd;
head
meta http-equiv=Content-Type content=text/html; charset=UTF-8/
titleWicket Demo/title
link rel=stylesheet type=text/css href=/css/style.css/
script type=text/javascript
src=resources/org.apache.wicket.markup.html.WicketEventReference/wicket-event.js/script
script type=text/javascript
src=resources/org.apache.wicket.ajax.WicketAjaxReference/wicket-ajax.js/script
script type=text/javascript
src=resources/org.apache.wicket.ajax.AbstractDefaultAjaxBehavior/wicket-ajax-debug.js/script

script type=text/javascript
id=wicket-ajax-debug-enable!--/*--![CDATA[/*!--*/
wicketAjaxDebugEnable=true;
/*--]]*//script

script type=text/javascript
id=org.wicketstuff.dojo.AbstractDefaultDojoBehavior/debug!--/*--![CDATA[/*!--*/
var djConfig = {};
djConfig.isDebug = true;
djConfig.parseWidgets = false;
djConfig.searchIds = []

/*--]]*//script

script type=text/javascript
src=resources/org.wicketstuff.dojo.AbstractDefaultDojoBehavior/dojo-0.4/dojo.js/script
script type=text/javascript
src=resources/org.wicketstuff.dojo.AbstractRequireDojoBehavior/dojo-wicket/dojoWicket.js/script
script type=text/javascript
id=org.wicketstuff.dojo.AbstractDefaultDojoBehavior/namespaces/wicketstuff!--/*--![CDATA[/*!--*/
dojo.registerModulePath(wicketstuff,
../../../resources/org.wicketstuff.dojo.AbstractDefaultDojoBehavior);
/*--]]*//script

script type=text/javascript
id=org.wicketstuff.dojo.AbstractDefaultDojoBehavior/consoleDebug!--/*--![CDATA[/*!--*/
dojo.require(dojo.debug.console);
dojo.require(dojo.widget.Tree);

/*--]]*//script

script type=text/javascript
id=org.wicketstuff.dojo.AbstractRequireDojoBehavior!--/*--![CDATA[/*!--*/
dojo.require(dojo.lfx.*);
dojo.require(dojo.gfx.*);
dojo.require(dojo.html.*);


/*--]]*//script

script type=text/javascript
id=txt11DojoParse!--/*--![CDATA[/*!--*/
djConfig.searchIds.push(txt11);
/*--]]*//script

script language='JavaScript' type='text/javascript'
var txt11_first = false;
function txt11_validate(type) {
with(dojo.byId('txt11').style){backgroundColor =
'#FFF';}   if (type=='valid'){
dojo.lfx.html.highlight('txt11',
dojo.gfx.color.hex2rgb('#98c27d'), 200).play(0)
dojo.lfx.html.unhighlight('txt11',
dojo.gfx.color.hex2rgb('#98c27d'), 200).play

Re: [OT] More Java's generic type parameters are not reified...

2009-09-17 Thread jWeekend


... or, if you subclass the subclass ...
In the form I gave it's very fragile - just a trick really, but it tells you
a bit about what is actually in the bytecode and contradicts (as
conclusively as using javap) what some would have you believe.

Regards - Cemal 
jWeekend OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com



igor.vaynberg wrote:
 
 what happens if down the line the index of the type changes?: )
 
 class FunnierFactoryA,B extends FunnyFactory
 
 -igor
 
 On Wed, Sep 16, 2009 at 3:43 PM, jWeekend jweekend_for...@cabouge.com
 wrote:
 Since you can NOT do

 class ST{S(){T t = new T();}} // broken

 how would you create an object of type T somewhere in S? Think about this
 before you read on ...

 At the risk of reigniting the world-famous generics debates of
 yesteryear,
 just as our noble core-developers regroup to start work on making 1.5
 even
 better than what is already the best Java web framework, I thought I'd
 share
 the idea I suggested to one of our developers who was having a bad day
 with
 generics (for several good reasons [1][2]) a couple of months ago, in
 case
 you can make use of it somewhere, or, find an even more convoluted
 solution
 - notice the innocent looking abstract modifier!
 // not real code
 // don't try this at home without adult supervision!
 public abstract class FunnyFactoryT {
  private T instance = null;
  public T getInstance() {
   if (instance == null) {
     try {
       final ParameterizedType gsc =
         (ParameterizedType)getClass().getGenericSuperclass();
       final ClassT typeT =         (ClassT)
 gsc.getActualTypeArguments()[0];
       instance = typeT.newInstance();
     } catch (InstantiationException e) {
       e.printStackTrace();
     } catch (IllegalAccessException e) {
       e.printStackTrace();
     }
   }
   return instance;  }
 }

 ...

 public class CreateInstanceOfTypeParameter {
   @Test
   public void testCreateInstanceOfTypeParameter() {
       FunnyFactoryPoint factory = new FunnyFactoryPoint() {};
     factory .getInstance().x = 22;
     factory .getInstance().y = 47;
     assertEquals(new Point(22, 47), factory.getInstance());
   }
 }

 Regards - Cemal jWeekend OO  Java Technologies, Wicket Training and
 Development http://jWeekend.com

 [1] http://gafter.blogspot.com/2006/11/reified-generics-for-java.html
 [2]
 http://weblogs.java.net/blog/arnold/archive/2005/06/generics_consid_1.html


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Re: [OT] More Java's generic type parameters are not reified...

2009-09-17 Thread jWeekend


Vineet ,

Yes, this is a technique that, carefully and properly used, could help in
building a generic DAO.
Can you elaborate on intializing the class type in constructor. ?

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com




vineet semwal wrote:
 
 the first time I  used  genericsuperclass()  was in generic daos after
 reading  https://www.hibernate.org/328.html,
 though it has it's own  quirks, it doesn't apply every where ..
  abstract modifier in above code was needed,it's done so that one will
 eventually  subclass funnyfactory
 and that genericsuperclass hack will work ..
 
 apart from that one another simple way for retrieving the generic
 classtype
 is intializing the class type in
 constructor.
 
 conditions apply ;)
 -- 
 regards,
 Vineet Semwal
 
 
 On Thu, Sep 17, 2009 at 4:13 AM, jWeekend
 jweekend_for...@cabouge.comwrote:
 
 Since you can NOT do

 class ST{S(){T t = new T();}} // broken

 how would you create an object of type T somewhere in S? Think about this
 before you read on ...

 At the risk of reigniting the world-famous generics debates of
 yesteryear,
 just as our noble core-developers regroup to start work on making 1.5
 even
 better than what is already the best Java web framework, I thought I'd
 share
 the idea I suggested to one of our developers who was having a bad day
 with
 generics (for several good reasons [1][2]) a couple of months ago, in
 case
 you can make use of it somewhere, or, find an even more convoluted
 solution
 - notice the innocent looking abstract modifier!
 // not real code
 // don't try this at home without adult supervision!
 public abstract class FunnyFactoryT {
  private T instance = null;
  public T getInstance() {
   if (instance == null) {
 try {
   final ParameterizedType gsc =
 (ParameterizedType)getClass().getGenericSuperclass();
   final ClassT typeT = (ClassT)
 gsc.getActualTypeArguments()[0];
   instance = typeT.newInstance();
 } catch (InstantiationException e) {
   e.printStackTrace();
 } catch (IllegalAccessException e) {
   e.printStackTrace();
 }
   }
   return instance;  }
 }

 ...

 public class CreateInstanceOfTypeParameter {
   @Test
   public void testCreateInstanceOfTypeParameter() {
   FunnyFactoryPoint factory = new FunnyFactoryPoint() {};
 factory .getInstance().x = 22;
 factory .getInstance().y = 47;
 assertEquals(new Point(22, 47), factory.getInstance());
   }
 }

 Regards - Cemal jWeekend OO  Java Technologies, Wicket Training and
 Development http://jWeekend.com

 [1] http://gafter.blogspot.com/2006/11/reified-generics-for-java.html
 [2]
 http://weblogs.java.net/blog/arnold/archive/2005/06/generics_consid_1.html


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RE: [OT] More Java's generic type parameters are not reified...

2009-09-17 Thread jWeekend


Yes indeed! This (see Neal Gafter's code below) is neat and getting much
closer to being actually usable, as long as its implementation is hidden
well away. I'd probably mark some of those methods final too (it's a shame
the class itself can't be - a subclasser could mess up the type parameter
list, as per Igor's post).

public abstract class TypeReferenceT 
private final Type type;
private volatile Constructor? constructor;

protected TypeReference() {
Type superclass = getClass().getGenericSuperclass();
if (superclass instanceof Class) {
throw new RuntimeException(Missing type parameter.);
}
this.type = ((ParameterizedType)
superclass).getActualTypeArguments()[0];
}

/**
 * Instantiates a new instance of {...@code T} using the default, no-arg
 * constructor.
 */
@SuppressWarnings(unchecked)
public T newInstance() throws NoSuchMethodException,
IllegalAccessException, InvocationTargetException,
InstantiationException {
if (constructor == null) {
Class? rawType = type instanceof Class? ? (Class?) type :
(Class?) ((ParameterizedType) type)
.getRawType();
constructor = rawType.getConstructor();
}
return (T) constructor.newInstance();
}

/**
 * Gets the referenced type.
 */
public Type getType() {
return this.type;
}

public static void main(String[] args) throws Exception {
ListString l1 = new TypeReferenceArrayListString() {
}.newInstance();
List l2 = new TypeReferenceArrayList() {
}.newInstance();
}
}

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com




Minto.van.der.Sluis wrote:
 
 Another related article by Gafter:
 
 http://gafter.blogspot.com/2006/12/super-type-tokens.html
  
 class ST{
  S() {
// T t = new T();
T t = new TypeReferenceT() {}.newInstance();
  }
 }
 
 The unittest would then look like this.
 
 public class CreateInstanceOfTypeParameter {
 @Test
 public void testCreateInstanceOfTypeParameter() {
   Point instance = new TypeReferencePoint() {}.newInstance();
   instance.x = 22;
   instance.y = 47;
   assertEquals(new Point(22, 47), instance);
 }
 }
 
 Looks pretty powerful to me ;-)
 
 Regards
 
 misl
 
 -Oorspronkelijk bericht-
 Van: jWeekend [mailto:jweekend_for...@cabouge.com] 
 Verzonden: donderdag 17 september 2009 0:44
 Aan: users@wicket.apache.org
 Onderwerp: [OT] More Java's generic type parameters are not reified...
 
 Since you can NOT do
  
 class ST{S(){T t = new T();}} // broken
 
 how would you create an object of type T somewhere in S? Think about
 this before you read on ...
 
 At the risk of reigniting the world-famous generics debates of
 yesteryear, just as our noble core-developers regroup to start work on
 making 1.5 even better than what is already the best Java web framework,
 I thought I'd share the idea I suggested to one of our developers who
 was having a bad day with generics (for several good reasons [1][2]) a
 couple of months ago, in case you can make use of it somewhere, or, find
 an even more convoluted solution - notice the innocent looking abstract
 modifier! 
 
 // not real code
 // don't try this at home without adult supervision!
 public abstract class FunnyFactoryT {
   private T instance = null;
   public T getInstance() {
 if (instance == null) {
   try {
 final ParameterizedType gsc =
   (ParameterizedType)getClass().getGenericSuperclass();
 final ClassT typeT = 
   (ClassT) gsc.getActualTypeArguments()[0];
 instance = typeT.newInstance();
   } catch (InstantiationException e) {
 e.printStackTrace();
   } catch (IllegalAccessException e) {
 e.printStackTrace();
   }
 }
 return instance;
   }
 }
 
 ...
 
 public class CreateInstanceOfTypeParameter {
 @Test
 public void testCreateInstanceOfTypeParameter() {
 FunnyFactoryPoint factory = new FunnyFactoryPoint() {};
   factory .getInstance().x = 22;
   factory .getInstance().y = 47;
   assertEquals(new Point(22, 47), factory.getInstance());
 }
 }
 
 Regards - Cemal
 jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com
 
 [1] http://gafter.blogspot.com/2006/11/reified-generics-for-java.html
 [2]
 http://weblogs.java.net/blog/arnold/archive/2005/06/generics_consid_1.ht
 ml
 
 
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 For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 =DISCLAIMER
 
 De informatie in deze e-mail is vertrouwelijk en uitsluitend bestemd 
 voor de geadresseerde. Indien u niet de geadresseerde bent, wordt u 
 er hierbij op gewezen, dat u geen recht heeft

[OT] More Java's generic type parameters are not reified...

2009-09-16 Thread jWeekend


Since you can NOT do

class ST{S(){T t = new T();}} // broken

how would you create an object of type T somewhere in S? Think about this 
before you read on ...

At the risk of reigniting the world-famous generics debates of yesteryear, just as our noble core-developers regroup to start work on making 1.5 even better than what is already the best Java web framework, I thought I'd share the idea I suggested to one of our developers who was having a bad day with generics (for several good reasons [1][2]) a couple of months ago, in case you can make use of it somewhere, or, find an even more convoluted solution - notice the innocent looking abstract modifier! 


// not real code
// don't try this at home without adult supervision!
public abstract class FunnyFactoryT {
 private T instance = null;
 public T getInstance() {
   if (instance == null) {
 try {
   final ParameterizedType gsc =
 (ParameterizedType)getClass().getGenericSuperclass();
   final ClassT typeT = 
 (ClassT) gsc.getActualTypeArguments()[0];

   instance = typeT.newInstance();
 } catch (InstantiationException e) {
   e.printStackTrace();
 } catch (IllegalAccessException e) {
   e.printStackTrace();
 }
   }
   return instance; 
 }

}

...

public class CreateInstanceOfTypeParameter {
   @Test
   public void testCreateInstanceOfTypeParameter() {
   FunnyFactoryPoint factory = new FunnyFactoryPoint() {};
 factory .getInstance().x = 22;
 factory .getInstance().y = 47;
 assertEquals(new Point(22, 47), factory.getInstance());
   }
}

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


[1] http://gafter.blogspot.com/2006/11/reified-generics-for-java.html
[2] http://weblogs.java.net/blog/arnold/archive/2005/06/generics_consid_1.html


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Re: Spring annotations fail to inject into webmodels

2009-09-12 Thread jWeekend


Pieter,

... if you're not injecting into components anywhere in your application you
naturally should be able to skip registering the
ComponentInstatiationListener.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development
http://jWeekend.com


jWeekend wrote:
 
 Pieter,
 
 Have you set up Spring's ContextLoaderListener (a Servlet listener that
 initiates your Spring context) and registered the Spring
 SpringComponentInjector as a Component instantiaition listener [1]?
 
 Your idea to instigate injection in the super classes constructor is fine
 as this will be the concrete subclass that you are instantiating - make
 sure the right super constructor is called in all places you want
 injection to take place, and also that you are not initialising the
 sub-classes injected properties as that would take place after the super
 class is initialised undoing what the super class constructor has done.
 
 Finally, in a case like this, get the simplest possible scenario working
 first (here, try injecting into the subclass directly) to show you have
 everything set up correctly and then try the conceptually slightly more
 complex solution of pushing-up the responsibility to instigate injection
 for all your models into their common, abstract superclass.
 
 Also, notice that this injector goes straight to your fields, even if
 they're private, so your setters not being called alone does not mean
 injection has not succeeded 
 
 Does that make sense?
 
 Regards - Cemal 
 jWeekend 
 OO  Java Technologies, Wicket Training and Development 
 http://jWeekend.com
   
 [1] http://cwiki.apache.org/WICKET/spring.html
 
 
 
 pieter claassen-2 wrote:
 
 My abstract basewebmodel constructor from which all my webmodels inherit
 marks inself for Spring injection but still no injection takes place. Any
 suggestions where I can look?
 
 Can I run the injection in the constructor of an abstract model from
 which I
 inherit all my webmodels? I cannot see why not?
 
 Thanks in advanced.
 P
 
 
 
 BaseWebModel.java
 =
 ...
 public BaseWebModel(Long id) {
 this.id = id;
 InjectorHolder.getInjector().inject(this);
 }
 
 here is an example of my TemplateWebModel that uses @SpringBean to set
 TemplateFactory
 TemplateWebModel.java
 ===
 
 ...
 @SpringBean(name=TemplateFactory)
 private TemplateFactory templateFactory;
 
 public TemplateWebModel(Template template) {
 super(template);
 }
 
 
 
 P
 
 On Fri, Sep 11, 2009 at 10:42 AM, jWeekend
 jweekend_for...@cabouge.comwrote:
 

 Pieter,

 If you want to use Spring's @Configuarble you'll need to enable Load
 Time
 Weaving or Complie Time Weaving.

 To use @SpringBean with an object that is not a Wicket Component you
 need
 to
 InjectorHolder.getInjector().inject(this) on initialisation of your
 object.

 The benefit of the latter approach is that you do not need to introduce
 weaving and that Wicket will make sure you have a serialisable proxy
 injected.

 Regards - Cemal
 jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com




 Pieter Claassen wrote:
 
  I am using maven, spring 2.5.6, wicket 1.4 and am trying to inject my
  DAO's
  into my wicket models but I find that Spring just ignores my advice.
 
  My question:
  1. @SpringBean only works on stuff that inherits from Component. What
 do
 I
  do with things like session and models that don't? I am trying to use
  @Configurable but that is being ignored.
  2. My POM deps are below. What should I pull in to have @Configurable
  working?
  3. BTW. When I comment the bean out of my XML config, then I do get an
  error
  so I am not sure if I am doing something very small wrong?
 
  Thanks.
  Pieter
 
  pom.xml
  ===
  ...
 dependency
  groupIdorg.springframework/groupId
  artifactIdspring-core/artifactId
  version${spring.version}/version
  /dependency
 
  dependency
  groupIdorg.apache.wicket/groupId
  artifactIdwicket-spring/artifactId
  version${wicket.version}/version
!--Same results whether I include or exclude the next
 session--
exclusions
  exclusion
groupIdorg.springframework/groupId
artifactIdspring/artifactId
  /exclusion
/exclusions
  /dependency
  
 
 
  TemplateWebModel.java
  ==
  .
  @Configurable
  public class TemplateWebModel extends
 AbstractDataSetWebModelTemplate {
 
  private TemplateFactory templateFactory;
 
  public TemplateFactory getTemplateFactory() {
  return templateFactory;
  }
 
  public void setTemplateFactory(TemplateFactory templateFactory) {
 throw new RuntimeException(REACHED TEMPLATE FACTORY SET);
 //This
  setter is never run
  //this.templateFactory = templateFactory;
  }
  .
 
  WicketApplicationDefinitition.xml

Re: Wicket integration with jQuery

2009-09-12 Thread jWeekend


I may not be totally unbiased as we're involved in the project but jWeekend
uses WiQuery, including on client applications, and can recommend it.

Regards - Cemal
jWeekend
OO  Java Technologies, Wicket Training and Development
http://jWeekend.com


danisevsky danisevsky wrote:
 
 Hello folks. I would like to use some Wicket integration with jQuery. But
 I
 found several implementations (WickeXt, wiquery and in wicket-stuff
 jwicket
 and jquery) and I do not know which one is the best. Could someone give me
 an advise?
 
 Thanks
 
 

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Re: Spring annotations fail to inject into webmodels

2009-09-11 Thread jWeekend


Pieter,

If you want to use Spring's @Configuarble you'll need to enable Load Time
Weaving or Complie Time Weaving.

To use @SpringBean with an object that is not a Wicket Component you need to
InjectorHolder.getInjector().inject(this) on initialisation of your object. 

The benefit of the latter approach is that you do not need to introduce
weaving and that Wicket will make sure you have a serialisable proxy
injected.

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com




Pieter Claassen wrote:
 
 I am using maven, spring 2.5.6, wicket 1.4 and am trying to inject my
 DAO's
 into my wicket models but I find that Spring just ignores my advice.
 
 My question:
 1. @SpringBean only works on stuff that inherits from Component. What do I
 do with things like session and models that don't? I am trying to use
 @Configurable but that is being ignored.
 2. My POM deps are below. What should I pull in to have @Configurable
 working?
 3. BTW. When I comment the bean out of my XML config, then I do get an
 error
 so I am not sure if I am doing something very small wrong?
 
 Thanks.
 Pieter
 
 pom.xml
 ===
 ...
dependency
 groupIdorg.springframework/groupId
 artifactIdspring-core/artifactId
 version${spring.version}/version
 /dependency
 
 dependency
 groupIdorg.apache.wicket/groupId
 artifactIdwicket-spring/artifactId
 version${wicket.version}/version
   !--Same results whether I include or exclude the next session--
   exclusions
 exclusion
   groupIdorg.springframework/groupId
   artifactIdspring/artifactId
 /exclusion
   /exclusions
 /dependency
 
 
 
 TemplateWebModel.java
 ==
 .
 @Configurable
 public class TemplateWebModel extends AbstractDataSetWebModelTemplate {
 
 private TemplateFactory templateFactory;
 
 public TemplateFactory getTemplateFactory() {
 return templateFactory;
 }
 
 public void setTemplateFactory(TemplateFactory templateFactory) {
throw new RuntimeException(REACHED TEMPLATE FACTORY SET); //This
 setter is never run
 //this.templateFactory = templateFactory;
 }
 .
 
 WicketApplicationDefinitition.xml
 ==
 
 ?xml version=1.0 encoding=UTF-8?
 beans xmlns=http://www.springframework.org/schema/beans;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xmlns:context=http://www.springframework.org/schema/context;
xsi:schemaLocation=
 http://www.springframework.org/schema/beans
 http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
 http://www.springframework.org/schema/context
 http://www.springframework.org/schema/context/spring-context-2.5.xsd;
 
 context:annotation-config/
 !--aop:aspectj-autoproxy/--
 
 !-- a bean that supplies my primary application database client --
 bean id=appDataSource class=com.musmato.dao.ApplicationDBFactory
 destroy-method=close
 constructor-arg
 ref bean=appConfig /
 /constructor-arg
 /bean
 
 !-- a bean that supplies a network database client for template uploads
 --
 bean id=rootDataSource class=com.musmato.dao.RootDBFactory
 destroy-method=close
 constructor-arg
 ref bean=appConfig /
 /constructor-arg
 /bean
 .
 bean id=TemplateFactory class=com.musmato.dao.TemplateFactory
 property name=client ref=appDataSource /
 /bean
 
 
 
 
 
 
 -- 
 Pieter Claassen
 musmato.com
 
 

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[Training] Autumn Apache Wicket Schedule For London Amsterdam

2009-09-08 Thread jWeekend

The following dates for jWeekend's 2 day Apache Wicket training 
courses, jw703 [1], are now scheduled and confirmed. 
Course syllabus and student reviews can be found on our site.


London: [2]
Sep23-24(Wed-Thu), Oct8-9(Thu-Fri), Oct10-11(Sat-Sun),   
Nov2-3(Mon-Tue), Nov7-8(Sat-Sun), Nov26-27(Thu-Fri)   


Amsterdam: [3]
Sep28-29, Nov30-Dec1

Contact us [4] regarding customised dates and/or content 
(add-on modules available from our Java, OO/UML, Spring 
and JPA courses) as well as on-site delivery.


Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


[1] http://jweekend.com/dev/JW703/
[2] http://jweekend.com/dev/BookingPage/
[3] http://www.jteam.nl/news/wicket.html
[4] http://jweekend.com/dev/ContactUs




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Re: Have you ever run this example ?

2009-08-28 Thread jWeekend

Altug,

It sounds like there is no bean factory set on your servlet context.
Did you add Spring's context listener in web.xml?

Regards - Cemal
jWeekend
OO Java Technologies, Wicket Training and Development
http://jWeekend.com

Altuğ B. Altıntaş wrote:

How can i add ctx variable ?

I am new in Spring Security

Thanks...

2009/8/28 Anders innocentl...@gmail.com

I don't see any ctx variable in that web page.

On Fri, Aug 28, 2009 at 10:37 PM, Altuğ B. Altıntaş alt...@gmail.com
wrote:

Hi all ;

I am trying to run Spring Security and Wicket-auth-roles example.

Url :

http://cwiki.apache.org/WICKET/spring-security-and-wicket-auth-roles.html

I implemented what it writes step by step but it gives :

java.lang.IllegalArgumentException: Argument [[ctx]] cannot be null
at

org.apache.wicket.spring.injection.annot.SpringComponentInjector.init(SpringComponentInjector.java:93)
at com.example.web.Setup.setListeners(Setup.java:41)
at com.exaple.web.Setup.init(Setup.java:32)
at

org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:696)
.

Any idea ? Or simple simple simple Spring Security and Wicket
integration
example.

Note :
I remember my old commodore - 64 days. I wrote hundreds of basic code
and
then it gives : syntax error :) opps urghh !

But still love wicket and its examples

--
Altuğ.

--
－－
~Mia は 最高！~
－－

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Re: LoadableDetachableModel#load() called twice

2009-08-21 Thread jWeekend

Warren,

Unless you are indirectly calling load() yourself, eg by calling
getObject(), on your LDM) during form processing it's Wicket converting the
selected item (by choice id) to the actual choice object, by matching the
id against the list of choices, calling load() on your LDM in the process.

This implies that you may be submitting the selected value from the list
which is probably unnecessary if that particular submit is designed to just
add a value to the choices' backing model (eg the List or table etc... you
are deriving your list of choices from).

One way to get around your issue would be to have your Add an item to my
list button and, the associated component where you add that new list
object, both on a separate form. Then, after that new form's submit, your
LDM's load() should only be called during any rendering, which is probably
what you want.

Does that do it?

Regards - Cemal
jWeekend
OO Java Technologies, Wicket Training and Development
http://jWeekend.com

Warren Bell-3 wrote:

I have a ListChoice that I add a choice to. I do this in an
AjaxButton#onSubmit(...). The problem is that load() has been called
before onSubmit() and I have to call LoadableDetachableMode#detach()
and have load() called again. This seems like a waste to have load()
called twice in order to get the new choice added to the ListChoice. Is
there a better way of doing this?

Warren

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Re: Tree based on database


Oliver,

Wicket (core and extensions) has several tree components and they all
currently use Swing's TreeModel (javax.swing.tree.TreeModel). I say
currently as this is the case upto and including Wicket 1.4 but there is
some discussion about using a new type of model, more suited to webapps, in
Wicket 1.5. Swing's TreeModel is not coupled to JTree at all even though it
happens to be the model JTree uses. Wicket does _not_ use JTree, but its
trees use TreeModel.

In the context of a Swing UI your code below would be much more flexible,
powerful and in the spirit of Swing if you were to explicitly use a
TreeModel to manage interaction with the underlying data; I expect even
Swing's out-of-the-box AbstractTreeModel (or the provided concrete subclass,
DefaultTreeModel which uses DefaultMutableTreeNode) would suffice for your
use-case based on what the code you've posted is doing.

Once you have created your TreeModel, you can use it with Wicket's trees too
as simply as:
 add(new LinkTree(tree, myTreeModel));
for example

See [1] for a simple example of how to use JTree (with a TreeModel), [2] for
a simple Wicket tree example and if you want to learn a bit more about how
some of Wicket's trees work check out this class diagram [3] from a couple
of years ago. 

Does that make sense?

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com

[1]
http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html#dynamic
[2] http://www.wicket-library.com/wicket-examples/ajax/tree/simple.1
[3] http://jweekend.com/dev/ArticlesPage/



Oliver-Sven Fritsch wrote:
 
 Hi everybody!
 
 Still new to Wicket I'm trying to get a wicket tree with nodes from a 
 database. What I got so far is a simple JTree put onto a JFrame. What I 
 don't understand is how to geht my tree onto a wicket web page. I'm 
 kinda confused on how to get things working. As far as I now wicket tree 
 uses jtree aswell, but I'm really stuck at this point. I'd really 
 appreaciate any help from anyone pointing me into the right direction.
 
 public class MyJTree extends JFrame {
 
 Connection con = null;
 Statement st = null;
 ResultSet rs = null;
 
 public static void main(String args[]) throws Exception {
 new MyJTree();
 }
 
 public MyJTree() throws Exception {
 
 super(Retrieving data from database );
 
 MyConnection mycon = MyConnectionFactory.getNewConnection();
 mycon.connect();
 
 ArrayList list = new ArrayList();
 list.add(The Root);
 
 try {
 String sql = select key, node_id, parent_id, caption from 
 mytable;
 
 st = mycon.createPreparedStatement(sql);
 rs = st.executeQuery(sql);
 
 
 while (rs.next()) {
 Object value[] = {rs.getString(1), rs.getString(2),
 rs.getString(3), rs.getString(4)};
 list.add(value);
 }
 } catch (Exception e) {
 System.out.println(e);
 }
 rs.close();
 st.close();
 
 Object hierarchy[] = list.toArray();
 
 JFrame frame = new JFrame();
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 Container content = getContentPane();
 
 DefaultMutableTreeNode root = processHierarchy(hierarchy);
 JTree tree = new JTree(root);
 content.add(new JScrollPane(tree), BorderLayout.CENTER);
 setSize(275, 300);
 setLocation(300, 100);
 setVisible(true);
 }
 
 private DefaultMutableTreeNode processHierarchy(Object[] hierarchy) {
 DefaultMutableTreeNode node = new 
 DefaultMutableTreeNode(hierarchy[0]);
 DefaultMutableTreeNode child;
 for (int i = 1; i  hierarchy.length; i++) {
 Object nodeSpecifier = hierarchy[i];
 if (nodeSpecifier instanceof Object[]) // Ie node with
 children
 {
 child = processHierarchy((Object[]) nodeSpecifier);
 } else {
 child = new DefaultMutableTreeNode(nodeSpecifier); // Ie 
 Leaf
 }
 node.add(child);
 }
 return (node);
 }
 }
 
 
 Thanks!
 Oliver
 
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Re: Tree based on database


Oliver,

It's not difficult but you may need to break the problem down a bit if you
are new to some of this stuff. Then we can address any bits you really need
help with.

Broadly speaking, you could:
1 - create a simple database schema to experiment with and populate the
relevant table(s) with just enough data. Bear in mind that there are whole
books/doctoral-theses on hierarchical data structures in RDBMS and related
SQL techniques so keep your first example as simple as possible (eg a single
table with two text columns representing the relationship between your
nodes, say parent and child, and keep nodes unique eg Bob should
appear no more than once in once under child for its single, corresponding
parent, and Bob will appear as many times under parent as it has
children. Your root node should not appear under child! You can get much
more sophisticated/powerful/scalabe etc later. 

2 - prepare your JDBC/iBatis/JPA/Hibernate/SpringJDBC/Guice/Warp/Spring...
to access your database and extract the data as required and test that this
works. In essence, all you'll be doing is executing queries along the lines
of 
SELECT child FROM mytable WHERE parent = ?

3 implement a TreeModel (or extend/use AbstractTreeModel or
DefaultTreeModel) that uses whatever DAO (or direct data access) you set up
in step 2. In the most naive/simple implementation using JDBC, your getChild
implementation could 

make a connection, 
run the query above (the parent will be passed in), 
create a list from the result set,
return the child corresponding to the index passed in

Of course this would be a crazy solution but once you've got everything
working (you can test that same model in Swing and/or Wicket), you can start
worrying about lazy vs eager loading of nodes, caching,
adding/moving/editing nodes, n-tier architecture and plenty of other stuff a
real-world implementation needs to take account of.

Let us know how you get on once you given that (along with the stuff in my
previous post) a go.

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


Oliver-Sven Fritsch wrote:
 
 Thanks for your reply. I guess defining the TreeModel is exactly my 
 problem. I tried to find a tutorial on how to do so based on my database 
 entries but I don't seem to find any. Maybe this is basic java knowledge 
 and I'm searching at the wrong spots. But a little how to would be great 
 because right now I have no idea how to solve my problem. I guess this 
 is a common use case while handling Trees on web apps, yet wondering why 
 there isn't a fool-proof guide. Any hints would be greatly appreaciated.
 
 Oliver
 
 
 Cemal wrote:
 
 Oliver,

 Wicket (core and extensions) has several tree components and they all
 currently use Swing's TreeModel (javax.swing.tree.TreeModel). I say
 currently as this is the case upto and including Wicket 1.4 but there is
 some discussion about using a new type of model, more suited to webapps,
 in
 Wicket 1.5. Swing's TreeModel is not coupled to JTree at all even though
 it
 happens to be the model JTree uses. Wicket does _not_ use JTree, but its
 trees use TreeModel.

 In the context of a Swing UI your code below would be much more flexible,
 powerful and in the spirit of Swing if you were to explicitly use a
 TreeModel to manage interaction with the underlying data; I expect even
 Swing's out-of-the-box AbstractTreeModel (or the provided concrete
 subclass,
 DefaultTreeModel which uses DefaultMutableTreeNode) would suffice for
 your
 use-case based on what the code you've posted is doing.

 Once you have created your TreeModel, you can use it with Wicket's trees
 too
 as simply as:
  add(new LinkTree(tree, myTreeModel));
 for example

 See [1] for a simple example of how to use JTree (with a TreeModel), [2]
 for
 a simple Wicket tree example and if you want to learn a bit more about
 how
 some of Wicket's trees work check out this class diagram [3] from a
 couple
 of years ago. 

 Does that make sense?

 Regards - Cemal 
 jWeekend 
 OO  Java Technologies, Wicket Training and Development 
 http://jWeekend.com

 [1]
 http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html#dynamic
 [2] http://www.wicket-library.com/wicket-examples/ajax/tree/simple.1
 [3] http://jweekend.com/dev/ArticlesPage/



 Oliver-Sven Fritsch wrote:
   
 Hi everybody!

 Still new to Wicket I'm trying to get a wicket tree with nodes from a 
 database. What I got so far is a simple JTree put onto a JFrame. What I 
 don't understand is how to geht my tree onto a wicket web page. I'm 
 kinda confused on how to get things working. As far as I now wicket tree 
 uses jtree aswell, but I'm really stuck at this point. I'd really 
 appreaciate any help from anyone pointing me into the right direction.

 public class MyJTree extends JFrame {

 Connection con = null;
 Statement st = null;
 ResultSet rs = null;

 public static void main(String args[]) throws Exception

Re: ListView Validation


see setReuseItems on ListView.

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


jpalmer1026 wrote:
 
 I'm trying to display a validation message for an item contained in a list
 view but the validation message isn't getting displayed. Is there
 something special that needs to be done to display validation messages for
 list view items?
 
 

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Re: how to use wicket tree in extension


Assuming the class diagram at http://jweekend.com/dev/ArticlesPage/ is
up-to-date for your version of Wicket, perhaps you can override protected
ITreeState newTreeState() to return an ITreeState that you pass between
pages (or, put in your custom WebSession if that makes more sense in your
app or in a table or ).
I wouldn't be surprised if Matej comes back to say there's a neater way than
that!

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


Haulyn Jason-2 wrote:
 
 Yes, that's right, is that a way to tell the new page(and the new instance
 of the tree), the status of the old tree?
 I means expand the node which I clicked?
 
 Thanks!
 
 
 On Sat, Aug 15, 2009 at 9:00 AM, jWeekend
 jweekend_for...@cabouge.comwrote:
 

 Is your menu (tree) in some parent page class that both the first and the
 linked-to page extend? When you go to a new page instance you will get a
 new
 instance of the Tree.

 Regards - Cemal
 jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com


 Haulyn Jason-2 wrote:
 
  No, just use Tree in extension package.
 
  On Fri, Aug 14, 2009 at 11:17 PM, Igor Vaynberg
  igor.vaynb...@gmail.comwrote:
 
  are you using LinkTree?
 
  -igor
 
  On Fri, Aug 14, 2009 at 12:15 AM, Haulyn R.
 Jasonsaharab...@gmail.com
  wrote:
   Hi,all:
  
   I design a page with a tree for page navigation. But I can not find
  more
   information from Internet to learn how to use the Tree component.
  
   I can display the tree as
  
   menu1
  |-sub_menu1
  |-sub_menu2
   menu2
  |-sub_menu3
  |-sub_menu4
  
   and I remove root node, make all tree expand while init the tree,
 but
 I
  do
   not know how to add links to the sub_menus, I tried to add some code
  like
   this:
  @Override
  protected void onNodeLinkClicked(AjaxRequestTarget
 target,
   TreeNode node) {
  DefaultMutableTreeNode treeNode =
  (DefaultMutableTreeNode)
   node;
  NavigationTreeNode navigationTreeNode =
  (NavigationTreeNode)
   treeNode.getUserObject();
  if (navigationTreeNode.isURL) {
  setResponsePage(navigationTreeNode.getURL());
  super.onNodeLinkClicked(target, node);
  } else {
  super.onNodeLinkClicked(target, node);
  }
  }
  
   this looks work well, but when I clink on a link, the page redirect
 to
  the
   target page, but I can not keep the tree with the selected node
 expand.
  
   Can anyone help me or give me some reference URLs? Thanks!
  
   --
   --
   Enjoy. Thanks!
  
   Mobile: +086-15864011231
   email: saharab...@gmail.com, hmp.hau...@foxmail.com
   website: http://haulynjason.net
   gtalk: saharab...@gmail.com
   yahoo: jia_hao...@yahoo.com
   msn: saharab...@gmail.com
   skype: saharabear
   QQ: 378606292
  
   Haulyn Jason
  
 
  -
  To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
  For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 
 
  --
  --
  Enjoy. Thanks!
 
  Mobile: +086-15864011231
  email: saharab...@gmail.com, hmp.hau...@foxmail.com
  website: http://haulynjason.net
  gtalk: saharab...@gmail.com
  yahoo: jia_hao...@yahoo.com
  msn: saharab...@gmail.com
  skype: saharabear
  QQ: 378606292
 
  贾昊林 Haulyn Jason
 
 

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 -- 
 --
 Enjoy. Thanks!
 
 Haulyn Microproduction
 
 Mobile: +086-15864011231
 email: saharab...@gmail.com,
  hmp.hau...@foxmail.com
 website: http://haulynjason.net
 gtalk: saharab...@gmail.com
 yahoo: jia_hao...@yahoo.com
 msn: saharab...@gmail.com
 skype: saharabear
 QQ: 378606292
 
 Haulyn Jason
 
 

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Re: MarkupnotFoundException in eclipse 3.4.2


The quick fix is:
  in Project Properties/Java Build Path/Source) set Included: *.* (and
make sure *.html is not Excluded) for the folder your html is in, most
likely src/main/java if you keep your templates next to your Java source
files.

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


dale77 wrote:
 
 Hello,
 
 The quickstart is proving anything but. I run quickstart:
 
 mvn archetype:create -DarchetypeGroupId=org.apache.wicket
 -DarchetypeArtifactId=wicket-archetype-quickstart
 -DarchetypeVersion=1.4.0 -DgroupId=nz.co.acme -DartifactId=myproject
 
 Then generate and eclipse project:
 
 mvn eclipse:eclipse -DdownloadSources=true
 
 Then I import the project into eclipse, leaving copy into workspace
 unchecked, and Run As Junit test on TestHomePage.java...
 
 Markup of type 'html' for component 'nz.co.acme.HomePage' not found.
 Enable debug messages for org.apache.wicket.util.resource to get a list
 of all filenames tried.: [Page class = nz.co.acme.HomePage, id = 0,
 version = 0] org.apache.wicket.markup.MarkupNotFoundException: Markup of
 type 'html' for component 'nz.co.acme.HomePage' not found.
 
 Eclipse is not copying the .html file alongside the .class. But the Java
 | Compiler | Output Folder | Filtered Resources is only *.launch. How do
 I make eclipse copy the html file next to the class?
 
 No doubt there is a simple explanation, but I'm not seeing it. Can
 anyone help me out?
 
 Thanks
 
 Dale
 
 
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Re: how to use wicket tree in extension


Yes, Igor's solution is easier (and will remember other tree state beyond
just which nodes are expanded) if you are able to use this panel swapping
technique instead of your current markup-inheritance solution for the common
menu (tree). 

It looks like a common decision one has to make: whether to pass components
around (remember, only ever use a component instance on a single page
instance at any one time!) versus just passing around component state (in
this case, which nodes are expanded and which are collapsed).

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


igor.vaynberg wrote:
 
 instead of navigating between pages and passing the tree state around
 why not simply swap panels. that way the tree instance is the same and
 keeps its state.
 
 -igor
 
 On Mon, Aug 17, 2009 at 8:23 AM, Haulyn R. Jasonsaharab...@gmail.com
 wrote:
 Yes, that's right, is that a way to tell the new page(and the new
 instance
 of the tree), the status of the old tree?
 I means expand the node which I clicked?

 Thanks!


 On Sat, Aug 15, 2009 at 9:00 AM, jWeekend
 jweekend_for...@cabouge.comwrote:


 Is your menu (tree) in some parent page class that both the first and
 the
 linked-to page extend? When you go to a new page instance you will get a
 new
 instance of the Tree.

 Regards - Cemal
 jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com


 Haulyn Jason-2 wrote:
 
  No, just use Tree in extension package.
 
  On Fri, Aug 14, 2009 at 11:17 PM, Igor Vaynberg
  igor.vaynb...@gmail.comwrote:
 
  are you using LinkTree?
 
  -igor
 
  On Fri, Aug 14, 2009 at 12:15 AM, Haulyn R.
 Jasonsaharab...@gmail.com
  wrote:
   Hi,all:
  
   I design a page with a tree for page navigation. But I can not find
  more
   information from Internet to learn how to use the Tree component.
  
   I can display the tree as
  
   menu1
      |-sub_menu1
      |-sub_menu2
   menu2
      |-sub_menu3
      |-sub_menu4
  
   and I remove root node, make all tree expand while init the tree,
 but
 I
  do
   not know how to add links to the sub_menus, I tried to add some
 code
  like
   this:
             �...@override
              protected void onNodeLinkClicked(AjaxRequestTarget
 target,
   TreeNode node) {
                  DefaultMutableTreeNode treeNode =
  (DefaultMutableTreeNode)
   node;
                  NavigationTreeNode navigationTreeNode =
  (NavigationTreeNode)
   treeNode.getUserObject();
                  if (navigationTreeNode.isURL) {
                      setResponsePage(navigationTreeNode.getURL());
                      super.onNodeLinkClicked(target, node);
                  } else {
                      super.onNodeLinkClicked(target, node);
                  }
              }
  
   this looks work well, but when I clink on a link, the page redirect
 to
  the
   target page, but I can not keep the tree with the selected node
 expand.
  
   Can anyone help me or give me some reference URLs? Thanks!
  
   --
   --
   Enjoy. Thanks!
  
   Mobile: +086-15864011231
   email: saharab...@gmail.com, hmp.hau...@foxmail.com
   website: http://haulynjason.net
   gtalk: saharab...@gmail.com
   yahoo: jia_hao...@yahoo.com
   msn: saharab...@gmail.com
   skype: saharabear
   QQ: 378606292
  
   Haulyn Jason
  
 
  -
  To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
  For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 
 
  --
  --
  Enjoy. Thanks!
 
  Mobile: +086-15864011231
  email: saharab...@gmail.com, hmp.hau...@foxmail.com
  website: http://haulynjason.net
  gtalk: saharab...@gmail.com
  yahoo: jia_hao...@yahoo.com
  msn: saharab...@gmail.com
  skype: saharabear
  QQ: 378606292
 
  贾昊林 Haulyn Jason
 
 

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 --
 --
 Enjoy. Thanks!

 Haulyn Microproduction

 Mobile: +086-15864011231
 email: saharab...@gmail.com,
         hmp.hau...@foxmail.com
 website: http://haulynjason.net
 gtalk: saharab...@gmail.com
 yahoo: jia_hao...@yahoo.com
 msn: saharab...@gmail.com
 skype: saharabear
 QQ: 378606292

 Haulyn Jason

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

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Re: Model question ?


Warren,

... and if you prefer using a CPM for your vendorEditForms:

public class HomePage extends WebPage {
private ListVendor vendors = Arrays.asList(new Vendor(v1), 
 new
Vendor(v2));
private Vendor vendor = new Vendor(default vendor);
public HomePage(final PageParameters parameters) {
IModel vendorModel = new PropertyModelVendor(this, vendor);
FormVoid form = new FormVoid(form);
add(form);
// use your existing LDM instead of this hard-wired 
// List of vendors but 
// make sure you merge your edits properly!
form.add(new ListChoiceVendor(vendors, 
 vendorModel, vendors));
// using a PropertyModel per field
FormVoid editForm1 = new FormVoid(vendorEditForm1);
add(editForm1);
editForm1.add(new TextFieldVendor(name, 
new PropertyModelVendor(this, vendor.name)));   
// using a CompoundPropertyModel   
FormVendor editForm2 = new FormVendor(vendorEditForm2, 
new CompoundPropertyModelVendor(vendorModel));
add(editForm2);
editForm2.add(new TextFieldVendor(name)); 
}

private class Vendor implements Serializable{
private String name;
protected Vendor(String name) {this.name = name;}
public String toString(){return name;}
// safer to have accessors  mutators
}
// safer to have accessors  mutators
}

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com



Warren Bell-3 wrote:
 
 How should I set up my model for the following situation. I have a form
 with a ListChoice and a TextField. The TextField needs to access a
 property of the object selected of the ListChoice. I have it all working
 using a ValueMap, but that seems like overkill to use a ValueMap for one
 object. Here is how I have it:
  
 super(new CompoundPropertyModelValueMap(new ValueMap()));
 
 ListChoiceVendor vendorListChoice = new ListChoiceVendor(vendor,
 new LoadableDetachableModelListVendor(){...}, new
 IChoiceRendererVendor(){...});
 
 TextFieldString accountNumberField = new
 TextFieldString(vendor.accountNumber);
 
 I thought I could do something like this:
 
 super(new CompoundPropertyModelVendor(new Vendor()));
 
 The ListChoice is the same as above and the TextField like this:
 
 TextFieldString accountNumberField = new
 TextFieldString(accountNumber);
 
 The problem with this is that the ListChoice is trying to set a property
 on the model named vendor when I realy want the selected ListChoice
 vendor object be the model object and have the TextField access the
 accountNumber property of the ListChoice vendor.
 
 How should I set up my model to deal with this type of situation or is a
 ValueMap the best way?
 
 Thanks,
 
 Warren
 
 
 
 
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RE: Model question ?


Warren,

Exactly - and in a very Wicket way! 

Just drop the code into your IDE and run it - if there are no typos (other
than the type parameter to the TextFields - the compiler can't help you
here!) it just works.

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com




Warren Bell-3 wrote:
 
 In your second example the Vendor in the vendorModel becomes the
 selected Vendor from the ListChoice and that Vendor name property
 becomes the value of the TextField? 
 
 -Original Message-
 From: jWeekend [mailto:jweekend_for...@cabouge.com] 
 Sent: Friday, August 14, 2009 3:47 PM
 To: users@wicket.apache.org
 Subject: Re: Model question ?
 
 
 Warren,
 
 ... and if you prefer using a CPM for your vendorEditForms:
 
 public class HomePage extends WebPage {
 private ListVendor vendors = Arrays.asList(new Vendor(v1), 
  new
 Vendor(v2));
 private Vendor vendor = new Vendor(default vendor);
 public HomePage(final PageParameters parameters) {
 IModel vendorModel = new PropertyModelVendor(this, vendor);
 FormVoid form = new FormVoid(form);
 add(form);
 // use your existing LDM instead of this hard-wired 
 // List of vendors but 
 // make sure you merge your edits properly!
 form.add(new ListChoiceVendor(vendors, 
  vendorModel, vendors));
 // using a PropertyModel per field
 FormVoid editForm1 = new FormVoid(vendorEditForm1);
 add(editForm1);
 editForm1.add(new TextFieldVendor(name, 
 new PropertyModelVendor(this, vendor.name)));   
 // using a CompoundPropertyModel   
 FormVendor editForm2 = new FormVendor(vendorEditForm2, 
 new CompoundPropertyModelVendor(vendorModel));
 add(editForm2);
 editForm2.add(new TextFieldVendor(name)); 
 }
 
 private class Vendor implements Serializable{
 private String name;
 protected Vendor(String name) {this.name = name;}
 public String toString(){return name;}
 // safer to have accessors  mutators
 }
 // safer to have accessors  mutators }
 
 Regards - Cemal
 jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com
 
 
 
 Warren Bell-3 wrote:
 
 How should I set up my model for the following situation. I have a 
 form with a ListChoice and a TextField. The TextField needs to access 
 a property of the object selected of the ListChoice. I have it all 
 working using a ValueMap, but that seems like overkill to use a 
 ValueMap for one object. Here is how I have it:
  
 super(new CompoundPropertyModelValueMap(new ValueMap()));
 
 ListChoiceVendor vendorListChoice = new ListChoiceVendor(vendor,
 
 new LoadableDetachableModelListVendor(){...}, new 
 IChoiceRendererVendor(){...});
 
 TextFieldString accountNumberField = new 
 TextFieldString(vendor.accountNumber);
 
 I thought I could do something like this:
 
 super(new CompoundPropertyModelVendor(new Vendor()));
 
 The ListChoice is the same as above and the TextField like this:
 
 TextFieldString accountNumberField = new 
 TextFieldString(accountNumber);
 
 The problem with this is that the ListChoice is trying to set a 
 property on the model named vendor when I realy want the selected 
 ListChoice vendor object be the model object and have the TextField 
 access the accountNumber property of the ListChoice vendor.
 
 How should I set up my model to deal with this type of situation or is
 
 a ValueMap the best way?
 
 Thanks,
 
 Warren
 
 
 
 
 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 
 
 --
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 http://www.nabble.com/Model-question---tp24978225p24979787.html
 Sent from the Wicket - User mailing list archive at Nabble.com.
 
 
 -
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 For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 

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RE: Model question ?


Warren,

If you don't mind your wicket:ids becoming rather misleading and arguably
slightly harder to follow (magical) Java, you can even do ...

public class HomePage extends WebPage {
private ListVendor vendors = Arrays.asList(new Vendor(v1), 
new Vendor(v2));
private Vendor vendor = new Vendor(default vendor);
public HomePage(final PageParameters parameters) {
setDefaultModel(new CompoundPropertyModelHomePage(this));
FormVoid form = new FormVoid(form); 
add(form); 
form.add(new ListChoiceVendor(vendor, vendors)); 
FormVendor editForm = new FormVendor(vendorEditForm);
add(editForm);
editForm.add(new TextFieldString(vendor.name));
}
private class Vendor {
private String name;
Vendor(String name) {this.name = name;}
@Override public String toString() {return name;}
}
}

I haven't worked out how to properly paste html into nabble, so drop me a
line at the jWeekend site if you want the template code to go with this, or
a QuickStart. 

Any comments on the type-parameters used above anybody?!

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


Warren Bell-3 wrote:
 
 In your second example the Vendor in the vendorModel becomes the
 selected Vendor from the ListChoice and that Vendor name property
 becomes the value of the TextField? 
 
 -Original Message-
 From: jWeekend [mailto:jweekend_for...@cabouge.com] 
 Sent: Friday, August 14, 2009 3:47 PM
 To: users@wicket.apache.org
 Subject: Re: Model question ?
 
 
 Warren,
 
 ... and if you prefer using a CPM for your vendorEditForms:
 
 public class HomePage extends WebPage {
 private ListVendor vendors = Arrays.asList(new Vendor(v1), 
  new
 Vendor(v2));
 private Vendor vendor = new Vendor(default vendor);
 public HomePage(final PageParameters parameters) {
 IModel vendorModel = new PropertyModelVendor(this, vendor);
 FormVoid form = new FormVoid(form);
 add(form);
 // use your existing LDM instead of this hard-wired 
 // List of vendors but 
 // make sure you merge your edits properly!
 form.add(new ListChoiceVendor(vendors, 
  vendorModel, vendors));
 // using a PropertyModel per field
 FormVoid editForm1 = new FormVoid(vendorEditForm1);
 add(editForm1);
 editForm1.add(new TextFieldVendor(name, 
 new PropertyModelVendor(this, vendor.name)));   
 // using a CompoundPropertyModel   
 FormVendor editForm2 = new FormVendor(vendorEditForm2, 
 new CompoundPropertyModelVendor(vendorModel));
 add(editForm2);
 editForm2.add(new TextFieldVendor(name)); 
 }
 
 private class Vendor implements Serializable{
 private String name;
 protected Vendor(String name) {this.name = name;}
 public String toString(){return name;}
 // safer to have accessors  mutators
 }
 // safer to have accessors  mutators }
 
 Regards - Cemal
 jWeekend
 OO  Java Technologies, Wicket Training and Development
 http://jWeekend.com
 
 
 
 Warren Bell-3 wrote:
 
 How should I set up my model for the following situation. I have a 
 form with a ListChoice and a TextField. The TextField needs to access 
 a property of the object selected of the ListChoice. I have it all 
 working using a ValueMap, but that seems like overkill to use a 
 ValueMap for one object. Here is how I have it:
  
 super(new CompoundPropertyModelValueMap(new ValueMap()));
 
 ListChoiceVendor vendorListChoice = new ListChoiceVendor(vendor,
 
 new LoadableDetachableModelListVendor(){...}, new 
 IChoiceRendererVendor(){...});
 
 TextFieldString accountNumberField = new 
 TextFieldString(vendor.accountNumber);
 
 I thought I could do something like this:
 
 super(new CompoundPropertyModelVendor(new Vendor()));
 
 The ListChoice is the same as above and the TextField like this:
 
 TextFieldString accountNumberField = new 
 TextFieldString(accountNumber);
 
 The problem with this is that the ListChoice is trying to set a 
 property on the model named vendor when I realy want the selected 
 ListChoice vendor object be the model object and have the TextField 
 access the accountNumber property of the ListChoice vendor.
 
 How should I set up my model to deal with this type of situation or is
 
 a ValueMap the best way?
 
 Thanks,
 
 Warren
 
 
 
 
 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 
 
 --
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 http://www.nabble.com/Model-question---tp24978225p24979787.html
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Re: how to use wicket tree in extension


Is your menu (tree) in some parent page class that both the first and the
linked-to page extend? When you go to a new page instance you will get a new
instance of the Tree.

Regards - Cemal 
jWeekend 
OO  Java Technologies, Wicket Training and Development 
http://jWeekend.com


Haulyn Jason-2 wrote:
 
 No, just use Tree in extension package.
 
 On Fri, Aug 14, 2009 at 11:17 PM, Igor Vaynberg
 igor.vaynb...@gmail.comwrote:
 
 are you using LinkTree?

 -igor

 On Fri, Aug 14, 2009 at 12:15 AM, Haulyn R. Jasonsaharab...@gmail.com
 wrote:
  Hi,all:
 
  I design a page with a tree for page navigation. But I can not find
 more
  information from Internet to learn how to use the Tree component.
 
  I can display the tree as
 
  menu1
 |-sub_menu1
 |-sub_menu2
  menu2
 |-sub_menu3
 |-sub_menu4
 
  and I remove root node, make all tree expand while init the tree, but I
 do
  not know how to add links to the sub_menus, I tried to add some code
 like
  this:
 @Override
 protected void onNodeLinkClicked(AjaxRequestTarget target,
  TreeNode node) {
 DefaultMutableTreeNode treeNode =
 (DefaultMutableTreeNode)
  node;
 NavigationTreeNode navigationTreeNode =
 (NavigationTreeNode)
  treeNode.getUserObject();
 if (navigationTreeNode.isURL) {
 setResponsePage(navigationTreeNode.getURL());
 super.onNodeLinkClicked(target, node);
 } else {
 super.onNodeLinkClicked(target, node);
 }
 }
 
  this looks work well, but when I clink on a link, the page redirect to
 the
  target page, but I can not keep the tree with the selected node expand.
 
  Can anyone help me or give me some reference URLs? Thanks!
 
  --
  --
  Enjoy. Thanks!
 
  Mobile: +086-15864011231
  email: saharab...@gmail.com, hmp.hau...@foxmail.com
  website: http://haulynjason.net
  gtalk: saharab...@gmail.com
  yahoo: jia_hao...@yahoo.com
  msn: saharab...@gmail.com
  skype: saharabear
  QQ: 378606292
 
  Haulyn Jason
 

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


 
 
 -- 
 --
 Enjoy. Thanks!
 
 Mobile: +086-15864011231
 email: saharab...@gmail.com, hmp.hau...@foxmail.com
 website: http://haulynjason.net
 gtalk: saharab...@gmail.com
 yahoo: jia_hao...@yahoo.com
 msn: saharab...@gmail.com
 skype: saharabear
 QQ: 378606292
 
 贾昊林 Haulyn Jason
 
 

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Re: How Wicket's big concepts/objects work together and in what order?

2009-08-06 Thread jWeekend

David,

Jonathan Locke and I have started writing an article describing the Wicket
architecture (as opposed to the Architecture of A Wicket Application). It
will be the document I wish could have found when I had the good fortune to
come across Wicket in 2007.

In the meantime, we have a few articles on the wiki by Dima (pen name syl)
like
http://cwiki.apache.org/WICKET/request-cycle-and-request-cycle-processor.html
this that you may find useful.

Regards - Cemal
jWeekend
OO, Java Technologies, Wicket - Training Consultancy
http://jWeekend.com

David Chang-5 wrote:

Hello, I am learning Wicket now and feel a bit confused by the new
concepts in Wicket regarding how they work together and in what order.

The big concepts I am talking about include:

Application
Session
Request
RequestCycle
RequestCycleProcessor
RequestTarget
SessionStore
Request
Response

Suppose I have a simple page with just one Wicket label. A user requests
this page. I would like to know how the above objects/concepts get
involved and in what order.

If it needs too much description, then forget it. If it does not take too
much of your time or you want to refresh yourself by give me an
explanation, I really appreciate it.

I want to be a good Wicket programmer.

Thank you!

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August London Wicket Event (just a drink?)

2009-08-05 Thread jWeekend

As many of our guests enjoy their hard-won summer holidays, we will hold our next London Wicket Event on October 7th (dates/location/presentation TBC here soon). 

In the meantime, for those of you who may be about to experience withdrawal symptoms missing our  apres-Wicket refreshments, we're fixing a quiet drink on Monday evening. 
Send us a note on the jWeekend Contact Us page if you can make it and I'll send you a confirmation the venue (central London) and times (19:00ish) when they're fixed.


Regards - Cemal
jWeekend
OO  Java Technologies
http://jWeekend.com


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Re: dzone refcard

2009-07-06 Thread jWeekend


Luther,

Interesting timing - I contacted dZone today about jWeekend putting together
a Wicket refcardz for their collection. I'll let you know what they say.

Regards - Cemal
jWeekend
OO  Java Technology
http://jWeekend.com



luther.baker wrote:
 
 Is anyone aware of a wicket
 refcardhttp://refcardz.dzone.com/refcardz/core-java-concurrencyinitiative?
 Thoughts?
 
 -Luther
 
 

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Re: dzone refcard

2009-07-06 Thread jWeekend


That'll be a nice resource for developers using Wicket, and, save jWeekend
plenty of time preparing one  ourselves for dZone, thanks! I'll let them
know to avoid unnecessary confusion about our proposal to create it earlier
today. 
Let me know if you need any extra pairs of eyes to review it.

Regards - Cemal
jWeekend
OO  Java Technology
http://jWeekend.com


kinabalu wrote:
 
 I've got one being pushed through the editorial process at DZone right  
 now, should be out very soon.
 
 On Jul 6, 2009, at 12:48 PM, Nick Heudecker wrote:
 
 Andrew Lombardi created one some time ago.  Should still be available.

 On Mon, Jul 6, 2009 at 12:44 PM, Paolo Di Tommaso
 paolo.ditomm...@gmail.com
 wrote:

 It would be nice

 -- paolo

 On Mon, Jul 6, 2009 at 6:07 PM, Luther Baker lutherba...@gmail.com
 wrote:

 Is anyone aware of a wicket
 refcardhttp://refcardz.dzone.com/refcardz/core-java-concurrency
 initiative?
 Thoughts?

 -Luther





 -- 
 Nick Heudecker
 Professional Wicket Training  Consulting
 http://www.systemmobile.com
 
 
 To our success!
 
 Mystic Coders, LLC | Code Magic | www.mysticcoders.com
 
 ANDREW LOMBARDI | and...@mysticcoders.com
 2321 E 4th St. Ste C-128, Santa Ana CA 92705
 ofc: 949-528-6480
 fax: 714-782-6024
 cell: 714-697-8046
 linked-in: http://www.linkedin.com/in/andrewlombardi
 twitter: http://www.twitter.com/kinabalu
 
 Eco-Tip: Printing e-mails is usually a waste.
 
 
 This message is for the named person's use only. You must not,  
 directly or indirectly, use,
   disclose, distribute, print, or copy any part of this message if you  
 are not the intended recipient.
 
 
 
 

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London Wicket Drink - tomorrow (Wednesday) evening

2009-06-30 Thread jWeekend

A few of us are getting together for a London Wicket Drink tomorrow 
evening. We'll be stating at the at The Old Thamesside Inn [1] at 19:00.


Regards - Cemal
jWeekend
OO  Java Technologies
http://jWeekend.com

[1] 
http://www.beerintheevening.com/pubs/s/43/432/Old_Thameside_Inn/London_Bridge 



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Wicket Training - Summer Schedule (London Amsterdam)

2009-06-24 Thread jWeekend


Our summer schedule for public Apache Wicket training courses [1] is set as 
follows:

London
   July 2,3
   July 13,14
   July 30,31
   August 6,7
   August 8,9 (weekend)
   September 1,2
  
Amsterdam (delivered by our training partners in The Netherlands, JTeam)

  July 8,9
  September 28,29 
  November 30 December 1


As always, contact us [3][4] for custom or on-site courses. 


Regards - Cemal
jWeekend
http://jWeekend.com

[1] http://www.jWeekend.com/dev/JW703/
[2] http://www.JTeam.nl/home.html
[3] Holland: info [at] JTeam.nl
[4] UK  other: http://www.jWeekend.com/dev/ContactUs  


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Oli's Presentation - Learn More About Wicket and, Contribute

2009-06-22 Thread jWeekend

We've posted Oliver Evans' great presentation from our June 2009 London Wicket Event to  
http://jweekend.com/dev/ArticlesPage
http://code.google.com/p/londonwicket  .


It's a must read if you're planning on getting right inside Wicket or preparing yourself to contribute some patches (ideally with tests where practical!). 

You can also see photos of some of the conspirators (Al Maw must have been taking ALL the pictures, so he's in none of them, this time!) from our first Wicket bug-fixing session in London. 

Check out the Wiki entry too at http://code.google.com/p/londonwicket/ . 


We're looking to run another Wicket Jira night at jWeekend soon so drop me a 
line via our site if you've looked at the presentation/read the Wiki entry, set 
up your environment and would like to get involved next time.

Regards - Cemal
jWeekend
http://jWeekend.com

PS If you missed Oli's talk, it's OK - I'm going to ask him to deliver it again as I know 
a lot of people who missed our June event would enjoy that as much as those there did. 
Same goes for Al's Stateless Everything talk from the same event, yet another 
classic!


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Re: London Wicket event on Wednesday

2009-06-02 Thread jWeekend


Paul,

Very droll! 

Our London Wicket Events [1][2] are not only free, we feed our guests (fresh
Pizza for those arriving before 18:30) and frequently give away goodies like
copies of Wicket In Action. We sometimes pay our international presenters'
expenses, and it is not unheard of for us to cover expenses of some guests
(like students) and to provide accommodation for quite a few of our
international guests over the last 2 years. And, Al has even been known to
dish out Google memorabilia including stuff as odd as Google director's
chairs, if I remember correctly!?
But of course, the main thing is that our guests enjoy a regular (first
Wednesday of every 2nd month) event where people that have any sort of
interest in Wicket can come along, meet others with some common interests,
mingle with well known and respected names in the field, and enjoy excellent
presentations which are always instructive and usually pretty entertaining,
as we work up a bit of a thirst before popping down to the pub.  

Regards - Cemal
jWeekend
http://jWeekend.com

[1] http://jweekend.com/dev/LWUGReg/
[2] http://code.google.com/p/londonwicket/



Paul Szulc wrote:
 
 Ah if only plane tickets were a little bit cheaper...
 
 On Tue, Jun 2, 2009 at 1:01 AM, Alastair Maw m...@almaw.com wrote:
 
 Hi, folks.
 Quick reminder that there's a London Wicket Users Group meet-up on
 Wednesday
 evening at Google UK in Victoria.

 It's rather late in the day for me to be announcing the topic of my talk,
 but it's going to be interesting:

 *Bookmarkable Everything*

 Wicket is great at managing server side state for you, but you still
 write
 a
 lot of boilerplate code for users to easily bookmark your pages.
 AJAX makes the problem ten times harder. Come along on Wednesday for
 instant
 parameterised pain relief.

 Sign up here: http://jweekend.co.uk/dev/LWUGReg

 Alastair

 
 
 
 -- 
 Best regards,
 Paul Szulc
 
 http://paulszulc.wordpress.com
 
 

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Re: London Wicket event on Wednesday

2009-06-02 Thread jWeekend


Paul,

I thought you meant tickets for our London Wicket Events [1] (free) tickets
are not cheap?!? - I probably misunderstood or totally missed your plane
word!

Send me a note with Skype id and your timezone using our contact us page [2]
if you are seriously considering preparing and delivering a presentation at
one of our future events.

Regards - Cemal
jWeekend
http://jWeekend.com

[1] http://jweekend.com/dev/LWUGReg/
[2] http://jweekend.com/dev/ContactUs




Paul Szulc wrote:
 
 Ah, you see, I didn't know that!
 But still I belive it would be just wrong to ask you for travel expanses
 just so could fly to London, chat with guys and fly back home...
 
 BUT
 
 but I could maybe craft some cool presentation for the wicket user group
 and
 visit you guys as presenter? Tell me what you think.
 
 On Tue, Jun 2, 2009 at 8:57 AM, jWeekend
 jweekend_for...@cabouge.comwrote:
 

 Paul,

 Very droll!


 
 -- 
 Best regards,
 Paul Szulc
 
 http://paulszulc.wordpress.com
 
 

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Re: Help debugging why a component is not showing up...

2009-05-30 Thread jWeekend


Ryan,

Is PageView what you're looking for?

Regards - Cemal
http://jWeekend.com jWeekend 




ryantxu wrote:
 
 Hello-
 
 I am pulling my hair out trying to figure out why a component is not
 showing up within a page.  When I run the app from eclipse in
 development or deployment mode, it shows up just fine.  When I build a
 package run that... no luck.  However it does include javascript
 libraries added from the (not visible) components.
 
 Is there an easy way to debug the component hierarchy on the page?
 
 Perhaps some way to dump the current page tree to text or something?
 
 Any pointers would be great!
 
 thanks
 ryan
 
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Re: London Wicket Event - 3rd June @ Google (2 years on)

2009-05-27 Thread jWeekend

Alexander,

It is unlikely that we will record and publish next Wednesday's event.
We post many of our presentations and some movies at our Google Code site
[1].

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

[1] http://code.google.com/p/londonwicket/

Alexander Shopov wrote:

Will the event be taped and made available onle?
Kind regards:
al_shopov

jWeekend wrote:

We will hold our next London Wicket Event on Wednesday, 3rd June, from
18:30. Our event is being generously hosted by Google. Join us for some
very
interesting, high quality presentations and to chat with fellow Wicket
users
and developers at all levels. We had over 65 registrants last time, so
book
early [1] if you can make it.

Event details and registration are at the usual place [1]. After Pizza
(18:15), the schedule (from 18:30) will be:

Cemal Bayramoglu: Introduction and Welcome
Our guests will be invited to talk about their Wicket
apps/architectures/issues
Oli Evans: Our Wicket Jira Evening at jWeekend - How To Contribute!
Alastair Maw: The Al Talk
General Wicket QA with Al and Cemal

I especially want to hear from anybody using Wicket with Google Apps - let
me know if you would like to give us a 15 minute introduction.

It is 2 years since we started running these events. Alastair and everyone
at jWeekend would like to thank you all for your consistently kind
feedback
and solid support; we look forward to seeing you on June 3rd. To
celebrate,
I'm also pleased to say that Dima (AKA syl on the Wicket Wiki) from
Moscow, one of our first jWeekend Wicket developers and course developer,
and Richard Wilkinson, our latest recruit, will both be attending and will
be helping us answer all your questions.

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

[1] http://jweekend.com/dev/LWUGReg/

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Re: Wicket architecture diagram?

2009-05-19 Thread jWeekend

Manuel,

I had a chat with Jonathan recently and this came up then too. He was also
going to mention it to Eelco as well, but we have all been pre-occupied, for
our part (and ironically) partly due to growing numbers of corporate Wicket
projects and on-site training requests!

If you do come up with something (and there are some guidelines already on
this thread and chapter 2 of Wicket In Action), I am sure you will get very
prompt and valuable feedback if you post it here.

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

manuelbarzi wrote:

hi, i am preparing a wicket architecture document for a project and i need
a preliminary diagram asap. what is the result, is the diagram presented
here by Subbu already corrected (ended) and presented somewhere? it's very
important for this document. thanks

jWeekend wrote:

Jeremy,

Yes, if you believe showing model on such a high level architectural
diagram meant to depict how the major components hang together, then you
should show IModel instead of LDM for sure. And it's true that newcomers
need to understand models and can find this concept hard to grasp if they
have not seen this sort of pattern before, but you don't need to show
everything in the one diagram.

Another comment about the diagram(s) I feel would be most useful (ones I
would have benefited from when I first luckily stumbled upon Wicket) is
that there should be a clear distinction between static and dynamic
features of the framework, for consistency and to avoid confusion for the
reader.

I think this is a good start and you can also see some of the Wiki
entries syl put on the Wiki even before he was working with us, like
http://cwiki.apache.org/WICKET/request-cycle-and-request-cycle-processor.html
this one .

Regards - Cemal
http://jWeekend.com jWeekend

Jeremy Thomerson-5 wrote:

While I agree that you could take out LDM specifically, I really think
that
you should replace it with IModel - I think it is critical to show that
IModel is the abstraction between a component and where it gets it's
data.
This is the number one misundertstood thing that I find among those I
teach.

--
Jeremy Thomerson
http://www.wickettraining.com

On Thu, Mar 26, 2009 at 6:44 AM, jWeekend
jweekend_for...@cabouge.comwrote:

Subbu,

Thank you!
I have a quick minute now, so I thought you'd appreciate a few crumbs
of
feedback before I can take a better look, hopefully late this evening.

0 - this is a great start!
1 - take out the LDM - this stretches the scope of the diagram beyond
what
it needs to show.
2 - if the level of abstraction is at a level which includes
validators/converters etc (possibly form processing is better
elaborated in
a child diagram) ... I think we need to mention FormComponent
explicitly.

More soon, and I hope this will draw some comments from core devs and
application developers.

Regards - Cemal
http://jWeekend.com jWeekend

subbu_tce wrote:

Based on my understanding, i just prepared a diagram.
Wicket Contributors.. Please review and let me know your valuable
feedback.
http://www.nabble.com/file/p22717793/wicket%2Barchitecture.jpg

Thanks,
Subbu.

jWeekend wrote:

Jeremy,

It's one of the first things I looked for when I first stumbled upon
Wicket 2 years ago, and it is a common request from many architects
and
even some project managers evaluating Wicket.

If the core devs come up with some rough (but correct) sketch
they're
all
agreed on, even if it's just a first iteration, I'll get someone
here to
create a professional (maybe even glossy) version from that.

Regards - Cemal
http://jWeekend.com jWeekend

Jeremy Thomerson-5 wrote:

Has anyone done a nice Wicket architecture diagram? I know about
the
architecture chapter in WiA, but someone I know is looking for
something
more along the lines of:

http://www.icesoft.com/developer_guides/icefaces/htmlguide/devguide/sys_architecture.html
http://www.ociweb.com/jnb/jsfArchitecture.jpg

Unfortunately, I'm no artist - so I can't help him much. I was
hoping
someone had already done something similar as part of a
presentation
somewhere.

--
Jeremy Thomerson
http://www.wickettraining.com

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London Wicket Event - 3rd June @ Google (2 years on)

2009-05-19 Thread jWeekend

We will hold our next London Wicket Event on Wednesday, 3rd June, from 
18:30. Our event is being generously hosted by Google. Join us for some very 
interesting, high quality presentations and to chat with fellow Wicket users 
and developers at all levels. We had over 65 registrants last time, so book 
early [1] if you can make it.


Event details and registration are at the usual place [1]. After Pizza 
(18:15), the schedule (from 18:30) will be:


Cemal Bayramoglu: Introduction and Welcome
Our guests will be invited to talk about their Wicket 
apps/architectures/issues

Oli Evans: Our Wicket Jira Evening at jWeekend - How To Contribute!
Alastair Maw: The Al Talk
General Wicket QA with Al and Cemal

I especially want to hear from anybody using Wicket with Google Apps - let 
me know if you would like to give us a 15 minute introduction.


It is 2 years since we started running these events. Alastair and everyone 
at jWeekend would like to thank you all for your consistently kind feedback 
and solid support; we look forward to seeing you on June 3rd. To celebrate, 
I'm also pleased to say that Dima (AKA syl on the Wicket Wiki) from 
Moscow, one of our first jWeekend Wicket developers and course developer, 
and Richard Wilkinson, our latest recruit, will both be attending and will 
be helping us answer all your questions.


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

[1] http://jweekend.com/dev/LWUGReg/ 




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Wicket Web Beans 1.1 Released

2009-05-19 Thread jWeekend

Wicket Web Beans 1.1 has been released. 
The project is now hosted on Google Code, learn more [1]. 
Try out the live samples [2].

Special thanks to Dan Syrstad and Daniel Toffeti.

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

PS Let me know if you'd like a demo at one of our upcoming London Wicket Events 
[3].


[1] http://code.google.com/p/wicket-web-beans/
[2]  http://jweekend.com/wicketwebbeans-examples-1.1/WebBeans/
[3] http://jweekend.com/dev/LWUGReg/

Informal Wicket meeting in London

2009-04-14 Thread jWeekend


Due to popular demand, especially from our London Wicket Event guests,
we're arranging an informal get together (AKA drink) in London. This will
probably be on Monday 20th April, either close to our office (NW6), in
W2 or the West End, all TBC.

Drop me a line [1] if you can make it.

Regards - Cemal
http://jWeekend.com

[1] http://jweekend.com/dev/ContactUs

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Re: Wicket architecture diagram?

2009-03-26 Thread jWeekend

Subbu,

Thank you!
I have a quick minute now, so I thought you'd appreciate a few crumbs of
feedback before I can take a better look, hopefully late this evening.

0 - this is a great start!
1 - take out the LDM - this stretches the scope of the diagram beyond what
it needs to show.
2 - if the level of abstraction is at a level which includes
validators/converters etc (possibly form processing is better elaborated in
a child diagram) ... I think we need to mention FormComponent explicitly.

More soon, and I hope this will draw some comments from core devs and
application developers.

Regards - Cemal
http://jWeekend.com jWeekend

subbu_tce wrote:

Based on my understanding, i just prepared a diagram.
Wicket Contributors.. Please review and let me know your valuable
feedback.
http://www.nabble.com/file/p22717793/wicket%2Barchitecture.jpg

Thanks,
Subbu.

jWeekend wrote:

Jeremy,

It's one of the first things I looked for when I first stumbled upon
Wicket 2 years ago, and it is a common request from many architects and
even some project managers evaluating Wicket.

If the core devs come up with some rough (but correct) sketch they're all
agreed on, even if it's just a first iteration, I'll get someone here to
create a professional (maybe even glossy) version from that.

Regards - Cemal
http://jWeekend.com jWeekend

Jeremy Thomerson-5 wrote:

Has anyone done a nice Wicket architecture diagram? I know about the
architecture chapter in WiA, but someone I know is looking for something
more along the lines of:

http://www.icesoft.com/developer_guides/icefaces/htmlguide/devguide/sys_architecture.html
http://www.ociweb.com/jnb/jsfArchitecture.jpg

Unfortunately, I'm no artist - so I can't help him much. I was hoping
someone had already done something similar as part of a presentation
somewhere.

--
Jeremy Thomerson
http://www.wickettraining.com

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Re: Wicket architecture diagram?

2009-03-26 Thread jWeekend

Jeremy,

Another comment about the diagram(s) I feel would be most useful (ones I
would have benefited from when I first luckily stumbled upon Wicket) is that
there should be a clear distinction between static and dynamic features of
the framework, for consistency and to avoid confusion for the reader.

I think this is a good start and you can also see some of the Wiki entries
syl put on the Wiki even before he was working with us, like
http://cwiki.apache.org/WICKET/request-cycle-and-request-cycle-processor.html
this one .

Regards - Cemal
http://jWeekend.com jWeekend

Jeremy Thomerson-5 wrote:

While I agree that you could take out LDM specifically, I really think
that
you should replace it with IModel - I think it is critical to show that
IModel is the abstraction between a component and where it gets it's data.
This is the number one misundertstood thing that I find among those I
teach.

--
Jeremy Thomerson
http://www.wickettraining.com

On Thu, Mar 26, 2009 at 6:44 AM, jWeekend
jweekend_for...@cabouge.comwrote:

Subbu,

Thank you!
I have a quick minute now, so I thought you'd appreciate a few crumbs of
feedback before I can take a better look, hopefully late this evening.

0 - this is a great start!
1 - take out the LDM - this stretches the scope of the diagram beyond
what
it needs to show.
2 - if the level of abstraction is at a level which includes
validators/converters etc (possibly form processing is better elaborated
in
a child diagram) ... I think we need to mention FormComponent explicitly.

More soon, and I hope this will draw some comments from core devs and
application developers.

Regards - Cemal
http://jWeekend.com jWeekend

subbu_tce wrote:

Based on my understanding, i just prepared a diagram.
Wicket Contributors.. Please review and let me know your valuable
feedback.
http://www.nabble.com/file/p22717793/wicket%2Barchitecture.jpg

Thanks,
Subbu.

jWeekend wrote:

Jeremy,

It's one of the first things I looked for when I first stumbled upon
Wicket 2 years ago, and it is a common request from many architects
and
even some project managers evaluating Wicket.

If the core devs come up with some rough (but correct) sketch they're
all
agreed on, even if it's just a first iteration, I'll get someone here
to
create a professional (maybe even glossy) version from that.

Regards - Cemal
http://jWeekend.com jWeekend

Jeremy Thomerson-5 wrote:

Has anyone done a nice Wicket architecture diagram? I know about the
architecture chapter in WiA, but someone I know is looking for
something
more along the lines of:

http://www.icesoft.com/developer_guides/icefaces/htmlguide/devguide/sys_architecture.html
http://www.ociweb.com/jnb/jsfArchitecture.jpg

Unfortunately, I'm no artist - so I can't help him much. I was
hoping
someone had already done something similar as part of a presentation
somewhere.

--
Jeremy Thomerson
http://www.wickettraining.com

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Re: Wicket Meetup Tonight in Amsterdam!

2009-03-24 Thread jWeekend


Enjoy yourselves tonight and remember that you are all invited to our 
http://jweekend.com/dev/LWUGReg/ London Wicket Event  next Wednesday evening
too!

Regards - Cemal
http://jWeekend.com jWeekend 
 

Martijn Dashorst wrote:
 
 The Apache Wicket Meetup in Amsterdam tonight (24 March) has grown
 considerably: over 70 people have already registered! Our program is
 still growing and just this morning we got an additional presentation!
 
 The Meetup is free thanks to our generous sponsors:
  - Hippo (http://onehippo.com)
  - Func (http://func.nl)
  - Topicus (http://topicus.nl)
 
 You can still join us between 19:00 and 22:00 in the Moevenpick hotel
 in Amsterdam.  Register for free here:
 
 https://spreadsheets.google.com/viewform?formkey=cDFlMTdSV3dKT1lkYUlVa2lWUFdkQXc6MA
 
 Route to the venue:
 
 http://maps.google.com/maps?client=safarirls=en-usoe=UTF-8um=1ie=UTF-8cid=0,0,16474381925794425644fb=1split=1dq=moevenpick+hotel+amsterdam+piet+heinkadedaddr=Piet+Heinkade+11,+1019+BR+Amsterdam,+Netherlandsgeocode=10995011565374881002,52.378048,4.914107ei=e5fISb-PIsS4-Qb1_tGZAwsa=Xoi=local_resultresnum=1ct=directions-to
 
 Program:
 - Introduction to Wicket
 - Wicket  Scala
 - Surprise
 - Wicket  JDave
 - Automated integration testing for Wicket apps
 - Wicket  DB4O
 - Getting your app production ready and in production
 
 Of course there is room for questions to the core team (Timo, Johan
 and Martijn are present), getting your book signed or just have a
 beer.
 
 See you tonight!
 
 -- 
 Become a Wicket expert, learn from the best: http://wicketinaction.com
 Apache Wicket 1.3.5 is released
 Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.
 
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Re: Wicket architecture diagram?

2009-03-24 Thread jWeekend


Jeremy,

It's one of the first things I looked for when I first stumbled upon Wicket
2 years ago, and it is a common request from many architects and even some
project managers evaluating Wicket.

If the core devs come up with some rough (but correct) sketch they're all
agreed on, even if it's just a first iteration, I'll get someone here to
create a professional (maybe even glossy) version from that.

Regards - Cemal 
http://jWeekend.com jWeekend 


Jeremy Thomerson-5 wrote:
 
 Has anyone done a nice Wicket architecture diagram?  I know about the
 architecture chapter in WiA, but someone I know is looking for something
 more along the lines of:
 
 http://www.icesoft.com/developer_guides/icefaces/htmlguide/devguide/sys_architecture.html
 http://www.ociweb.com/jnb/jsfArchitecture.jpg
 
 Unfortunately, I'm no artist - so I can't help him much.  I was hoping
 someone had already done something similar as part of a presentation
 somewhere.
 
 --
 Jeremy Thomerson
 http://www.wickettraining.com
 
 

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Re: OT: How to connect Wicket layer to underlying service layer

2009-03-24 Thread jWeekend

Kaspar,

Flick through Martin Fowler's Patterns of Enterprise Application
Architecture to see if you like it.

Regards - Cemal
http://jWeekend.com jWeekend

hbf wrote:

James, Eduardo, Jeremy, thank you very much for your input!

I follow your discussions with great interest.

Can you recommend a book on this sort of questions? I have read books
on Spring and Hibernate but not from this high-level point of view.

Cheers,
Kaspar

On 24.03.2009, at 17:38, Eduardo Nunes wrote:

Ok I got it. One question, consider that you have this model:

Person 1xN Address

You have a screen that list a detailed view of a person, including a
list of addresses. What approach do you use to implement it?
- A service method that returns a Person entity with eager load of the
list of Addresses? (if you don't need always the addresses this
doesn't make sense)
- A service method that returns a Person entity with lazy load of the
list of Addresses? (it could be a problem in a JEE environment)
- Two service methods, one to return the Person entity and another one
to return the of addresses?

Thanks,
Eduardo S. Nunes

On Tue, Mar 24, 2009 at 1:11 PM, Jeremy Thomerson
jer...@wickettraining.com wrote:
Agree again.

--
Jeremy Thomerson
http://www.wickettraining.com

On Tue, Mar 24, 2009 at 11:11 AM, James Carman
jcar...@carmanconsulting.com
wrote:

On Tue, Mar 24, 2009 at 12:08 PM, Eduardo Nunes
esnu...@gmail.com wrote:
Yes, I understand you too. What do you do when you have to send a
set
of entities and a calculation for each entity? you encapsulate it
inside another class?

A domain-driven design advocate would say that the entity knows
how to
calculate what you need and you can ask it for the calculated value.

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Re: London Wicket Event - 1st of April @ Google

2009-03-23 Thread jWeekend


Alastair Maw has just informed me of the catchy little title he's come up
with for his talk: Why Making Table Components Is Hard.
You've probably heard by now that we're flying in Martijn Dashorst for a
whirlwind, one night trip to give a couple of presentations at our upcoming
London Wicket Event, and as April 1st approaches we're gradually filling up
with 45 registered now. He'll also be signing your copies Wicket In Action,
and the prizes for our raffle this time will be 3 free copies of Wicket In
Action (courtesy of Manning). 
Marc Ziman's talk covering agile development with
MySQL/Spring/Hibernate/Wicket is also taking shape and is going to be
interesting. 
http://jweekend.com/dev/LWUGReg/ Register  early if you like to come along. 

Regards - Cemal
http://jWeekend.com jWeekend 



jWeekend wrote:
 
 We've already had around 40 guests register (30 confirmed so far) for our
 next London Wicket Event, including several developers from WicketStuff
 and other Wicket based projects you may already be using or are interested
 in, so make sure you register early at  http://jweekend.com/dev/LWUGReg/
 the usual place  if you would like to come along.
 
 Also, take a look at  http://www.eu.apachecon.com/c/aceu2009/ ApacheCon
 Europe 2009  (Amsterdam, 23-27 March); lots of interesting stuff including
 several Wicket sessions and presentations.
 
 Regards - Cemal
  http://jWeekend.com jWeekend 
 
 
 jWeekend wrote:
 
 Our next London Wicket Event will be on the evening of Wednesday, April
 1st, at Google.
 Martijn Dashorst will be flyiing over from Holland for the evening; as
 well as giving us a couple of interesting presentations, he will be
 signing your copies of Wicket In Action. Manning are kindly sending over
 a few copies too, so we'll be having another of our well-organised(?!)
 raffles.
 Al has fixed a bigger room for us at Google, who have been kindly hosting
 our events, but we do expect a fairly full auditorium again so 
 http://jweekend.com/dev/LWUGReg/ register  early.
 
 Al and I (and Martijn, no doubt, this time) will also run a general
 Wicket QA to wrap things up as usual.
 
 We'll be getting in some hot Pizza for around 18:15 and then:
 *  http://jWeekend.com Cemal Bayramoglu :  Welcome/Introduction
 * Marc Ziman: My Agile Stack (Wicket, Spring, Hibernate, MySQL)
 *  http://wicketinaction.com Martijn Dashorst : Complex UIs With
 Wicket
 * Martijn Dashorst: Quality Control
 *  http://herebebeasties.com Al Maw : TBD
 * Al Maw  Cemal Bayramoglu: General Wicket QA
 If you're not in a rush to get away join us for the customary visit to a
 local pub straight after the QA.
 
 We're lucky to attract a very good crowd and they say really nice things
 about our events, so if you've never been, you'd most likely enjoy the
 experience.
 
 Full details and registration are at  at 
 http://jweekend.com/dev/LWUGReg/ the usual place  - don't forget to
 confirm (or cancel) your registration using the link in the automated
 email.
 
 Regards - Cemal
  http://jWeekend.com jWeekend 
 
 
 

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Re: Wicket WebBeans Project...

2009-03-19 Thread jWeekend


James,

That's some coincidence - I just tried to register the same name at Google
code earlier today for the wicketwebbeans folks (they're currently on
SourceForge) in case we want to migrate there because Google code seems to
be more responsive and cleaner.

I've been talking to Dan ad Daniel for a few days as we want to get a 1.1
release out as soon as we can (in the next week or so) that takes care of a
couple of minor but irritating 1.0 bugs.

Then, jWeekend will host live sample apps so more people can see that this
is in fact a very useful little framework and, from my limited experience,
it just works, and saves a lot of tedious code.

My first thoughts are that I'm not sure it's worth the confusion if you take
over that name - Dan would have the final say in that of course and I would
support his decision. It's probably not a bad idea to see what progress is
made on your new project first to see if it will actually materialises and a
1.0 release sees the light of day before taking over the name of an existing
and already released project which I believe could become quite a handy tool
for people once we've made some minor fixes. The next steps for the current
wicketwebbeans project could be to add a few new components and features and
port it to Wicket 1.4; these are the things Dan, Daniel and I have been
looking at.

It'd be interesting to hear what the core devs have to say on the naming
matter as well, as your idea could be seen as part of a strategic plan for
Wicket - and, so could Dan's project.

Regards - Cemal
http://jWeekend.com jWeekend 


jwcarman wrote:
 
 All,
 
 I've run into a problem.  I'd like to start up a project to integrate
 the new WebBeans Specification (JSR-299) based on the Apache
 OpenWebBeans project
 (http://incubator.apache.org/openwebbeans/1.0.0-SNAPSHOT/index.html)
 in the Apache Incubator.  Unfortunately, there already exists a
 project called wicketwebbeans.  It's not an official Wicket project,
 but I don't want to step on anyone's toes.  What would you folks
 suggest here?  The name of the spec is WebBeans, so the name
 wicket-webbeans (the packages is javax.webbeans) does fit.  The other
 project's actual name is wicketwebbeans, so it's not an exact match,
 but it's close enough to cause some confusion.
 
 James
 
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Re: London Wicket Event - 1st of April @ Google

2009-03-13 Thread jWeekend


We've already had around 40 guests register (30 confirmed so far) for our
next London Wicket Event, including several developers from WicketStuff and
other Wicket based projects you may already be using or are interested in,
so make sure you register early at  http://jweekend.com/dev/LWUGReg/ the
usual place  if you would like to come along.

Also, take a look at  http://www.eu.apachecon.com/c/aceu2009/ ApacheCon
Europe 2009  (Amsterdam, 23-27 March); lots of interesting stuff including
several Wicket sessions and presentations.

Regards - Cemal
http://jWeekend.com jWeekend 


jWeekend wrote:
 
 Our next London Wicket Event will be on the evening of Wednesday, April
 1st, at Google.
 Martijn Dashorst will be flyiing over from Holland for the evening; as
 well as giving us a couple of interesting presentations, he will be
 signing your copies of Wicket In Action. Manning are kindly sending over a
 few copies too, so we'll be having another of our well-organised(?!)
 raffles.
 Al has fixed a bigger room for us at Google, who have been kindly hosting
 our events, but we do expect a fairly full auditorium again so 
 http://jweekend.com/dev/LWUGReg/ register  early.
 
 Al and I (and Martijn, no doubt, this time) will also run a general Wicket
 QA to wrap things up as usual.
 
 We'll be getting in some hot Pizza for around 18:15 and then:
 *  http://jWeekend.com Cemal Bayramoglu :  Welcome/Introduction
 * Marc Ziman: My Agile Stack (Wicket, Spring, Hibernate, MySQL)
 *  http://wicketinaction.com Martijn Dashorst : Complex UIs With
 Wicket
 * Martijn Dashorst: Quality Control
 *  http://herebebeasties.com Al Maw : TBD
 * Al Maw  Cemal Bayramoglu: General Wicket QA
 If you're not in a rush to get away join us for the customary visit to a
 local pub straight after the QA.
 
 We're lucky to attract a very good crowd and they say really nice things
 about our events, so if you've never been, you'd most likely enjoy the
 experience.
 
 Full details and registration are at  at  http://jweekend.com/dev/LWUGReg/
 the usual place  - don't forget to confirm (or cancel) your registration
 using the link in the automated email.
 
 Regards - Cemal
  http://jWeekend.com jWeekend 
 

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Re: Refresh an invisible component via ajax

2009-03-13 Thread jWeekend


Daniele,

Try setOutputMarkupPlaceholderTag(true).

Regards - Cemal
http://jWeekend.com jWeekend 


Daniele Dellafiore wrote:
 
 Hi.
 Today again I lost some time cause a panel was not being refresh after
 being correctly added to AjaxRequestTarget.
 
 The reason is one I already know but forgot: if the panel is invisible
 when the page is rendered, it's html is not rendered at all so you are
 calling a refresh on a Component without any DOM connection. .
 
 I think that this should result in some sort of exception, instead
 wicket (as of 1.3.3) do not tell anything.
 
 Maybe this problem is already being discussed/addressed/solved, I have
 searched and found nothing specific. If so, please point me to the
 jira issue or something.
 
 Thanks.
 
 -- 
 Daniele Dellafiore
 http://blog.ildella.net/
 
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Re: Wicket training in Sweden?

2009-03-12 Thread jWeekend


Kent,

We occasionally organise such courses if there is enough interest.
We've also had several Scandinavians pop over to London for jWeekend
training (weekdays and weekends) and, coincidentally, our Wicket training
course earlier this week had 2 Swedes and A Dane on it as well! 

Check our site for course details and student reviews and 
http://jweekend.com/dev/ContactUsBody/ send us a note  if you'd like more
information.

Regards - Cemal
http://jWeekend.com jWeekend 

 


Kent Larsson-3 wrote:
 
 Hi,
 
 I'm simply wondering if there exists any company providing Wicket
 training in Sweden? And if there is, what you know about them?
 
 Best regards, Kent
 
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Re: DropDownChoice with disabled items

2009-03-06 Thread jWeekend


Adriano,

I'm glad it was useful - these classes make DDCs pretty versatile.

Wicket 1.3 is designed to be ale to run on Java versions before 1.5 (when
generics were introduced to the language). Take a look at 
http://wicket.apache.org/docs/1.4/ SelectOption in Wicket 1.4   if you are
using Java 5 or better.

Regards - Cemal
http://jWeekend.com jWeekend 


Adriano dos Santos Fernandes-3 wrote:
 
 Thanks, Cemal.
 
 However, I must say that I don't like how generics are handled (or not 
 handled at all) in these components.
 
 
 Adriano
 
 
 jWeekend escreveu:
 Adriano,

 Take a look at a mini-presentation I gave at one of our London Wicket
 Events
 sometime in last couple of years on Select and SelectOption at
 http://jweekend.com/dev/ArticlesPage/  .

 Regards - Cemal
 http://jWeekend.com jWeekend  


 Adriano dos Santos Fernandes-3 wrote:
   
 Is there an easy way to do it? Output would be:

 select
 optionEnabled item/option
 option disabled=disabledDisabled item/option
 ...
 /select


 Adriano


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Re: Ajaxifying FormComponentPanel

2009-03-06 Thread jWeekend


Linda,

Take a look at AjaxFormComponentUpdatingBehavior.

Regards - Cemal
http://jWeekend.com jWeekend 


Linda van der Pal wrote:
 
 I have a FormComponentPanel that contains a TextField and a 
 DropDownChoice. Of those two only one is visible at any moment. (The 
 TextField is there for when the DropDownChoice doesn't offer the wanted 
 result.) On the panel that contains the FormComponentPanel, I want 
 another element to respond to any change in the FormComponentPanel (most 
 importantly if the user selects something from the DropDownChoice). I 
 have added ajax behavior to the component, but the model isn't updated, 
 so when I debug the onChange method of the behavior, I find that the 
 object in the model is null. How do I get it to update properly?
 
 Regards,
 Linda van der Pal
 
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Re: Uppercasing inputs


Martijn,

Is there not already an EasyUpperCaseRUs.com web service you can subscribe
to for unlimited conversions at an annual fee of under 30,000USD (or
100USD/conversion) who also have a 5 free conversions trial subscription?

Ether way, I would suggest this be done at conversion time so validation can
do its job properly and you're not handing off conversion responsibilities
where they don't belong. Some solutions leaving this transformation of the
text input by the user until after conversion in the form processing
life-cycle may be less lines of code (or less classes), but IMO, are bending
rules and ignoring good design principles. 

Of course, others may disagree and come up with all sorts of neat
solutions that still manage to upper-case a string; how about just cut out
the middle-man altogether and do it in a stored-procedure triggered on
INSERT and UPDATE - that would work too, but wouldn't be my choice.

There's also a degree of it depends here, but generally, the
form-processing life-cycle should be respected or explicitly overridden for
a good design reason (to meet user requirements).

Regards - Cemal
http://jWeekend.com jWeekend  


Martijn Dashorst wrote:
 
 I suggest setting up an ESB with a UppercaseService that is available
 through EJB/SOAP/JAX-RS and JSON. UppercaseModel could then access
 that UppercaseService to make the value uppercase.
 
 Martijn
 
 On Thu, Mar 5, 2009 at 12:50 AM, Igor Vaynberg igor.vaynb...@gmail.com
 wrote:
 you can create a convertermodel that takes an instance of iconverter
 and uses that to convert the values, then you can subclass textfield,
 override initmodel() and wrap any model the textfield had with this
 one.

 that way everyone is happy!

 -igor

 On Wed, Mar 4, 2009 at 3:29 PM, Jeremy Thomerson
 jer...@wickettraining.com wrote:
 LOL!  Nah - I would just change all the setters on every domain object
 to
 be:

 public void setFoo(String foo) {
  this.foo = foo == null ? null : foo.toUpperCase();
 }

 Or, maybe I'd use AOP and build an aspect that could automatically
 intercept
 calls to com.mydomain setters that take a single string argument and do
 the
 upper-casing there!

 It's makes me smile to think of how many ways a single thing can be
 done.

 Leszek - you should now definitely have plenty of choices.  Pick which
 feels
 best / most comfortable for you!

 On Wed, Mar 4, 2009 at 5:22 PM, jWeekend
 jweekend_for...@cabouge.comwrote:


 Igor,

 Nope, not for me (this time).
 Here's the Javadoc for updateModel:
         * Updates this components model from the request, it expects
 that
 the
 object is already
         * converted through the convertInput() call that is called by
 the
 validate() method when a form
         * is being processed.

 Regards - Cemal
 http://jWeekend.com jWeekend


 igor.vaynberg wrote:
 
  pft, you guys!
 
  i would go with the simplest!
 
  class uppercasetextfield extends textfieldstring {
          public void updatemodel()
        {
                final String str=getconvertedinput();
               
 setdefaultmodelobject((str==null)?null:str.touppercase());
        }
  }
 
  done!
 
  -igor
 
  On Wed, Mar 4, 2009 at 3:07 PM, jWeekend
 jweekend_for...@cabouge.com
  wrote:
 
  Jeremy,
 
  I sensed you were uncomfortable with my most Wicket-way suggestion
 when
  I
  read
  http://www.nabble.com/RE%3A-Uppercasing-inputs-p22338461.htmlyour
  previous post on this thread  stating that the model doing the
  transformation work was on the right track; it is not unusual that
 more
  than one design can satisfy a given requirement.
 
  Do you like the idea of a model being responsible for conversion of
  users'
  textual input?
 
  Your article illustrates the use of nested models nicely but on this
  occasion I would probably go with
  http://www.nabble.com/Re%3A-Uppercasing-inputs-p22332471.html
 Adriano's
  idea
  for a client side, instant gratification, solution, and a custom
 text
  field
  with a converter if the conversion can happen later, on the server.
 
  Regards - Cemal
  http://jWeekend.com jWeekend
 
 
 
  Jeremy Thomerson-5 wrote:
 
  Cemal,
    I think I have to respectfully disagree with you here.  I
 describe
  what
  I
  feel is a better solution, and a little bit of why in this blog
 post
  from
  a
  few months ago:
 
 
 http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/
 
    Basically, doing it the way you suggested isn't reusable across
 many
  components - you have to create overridden variants of each type of
  input.
  Also, a converter (or more specifically, an implementation of
  IConverter)
  is
  supposed to be for transforming a type of object to a string usable
 in
  the
  browser / form post / etc, as it's javadoc mentions.
 
    Anyway, as the saying goes there are many ways to skin a cat -
  although
  the saying isn't that great, I think it applies - there are
 multiple
  ways
  of
  accomplishing the same thing.
 
  --
  Jeremy Thomerson
  http

Re: a bit of topic but i couldnt resist ....


Johan,

I can't have a thorough look at this until later, but the first thing I
noticed is that MyObject does not have equals and hashCode defined, yet you
are putting instances of it into hashed collections.
Even if that isn't causing the main issue you are demonstrating, you may
witness surprising behaviour.

Regards - Cemal
http://jWeekend.com jWeekend 


Johan Compagner wrote:
 
 it has nothing to do with threading or concurent modification
 
 Its really a simple test just run this:
 
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.TreeSet;
 
 public class Test
 {
 public static void main(String[] args)
 {
 TreeSetMyObject set1 = new TreeSetMyObject(new
 ComparatorMyObject(){
 
 public int compare(MyObject o1, MyObject o2)
 {
 return o1.aString.compareToIgnoreCase(o2.aString);
 }
 });
 
 set1.add(new MyObject(johan));
 set1.add(new MyObject(rob));
 
 HashSetMyObject set2 = new HashSetMyObject();
 set2.add(new MyObject(johan));
 
 
 set1.removeAll(set2);
 
 System.err.println(this works:  + set1.size() +  == 1, and
 remainng object is  + set1.iterator().next() +  == rob);
 
 // add removed back in
 set1.add(new MyObject(johan));
 
 // increase the size of set2 with some other random others
 set2.add(new MyObject(random1));
 set2.add(new MyObject(random2));
 
 
 // now size is bigger then set1, call removeall again:
 set1.removeAll(set2);
 
 System.err.println(this doesnt work:  + set1.size() +  != 1, so
 now both objects stil remain! This is because removeAll isnt overwritten
 by
 TreeSet and AbstractSet walks over the smallest set but then compare
 fails);
 
 // same for retainAll that also compares wrong.
 set1.retainAll(set2);
 
 System.err.println(set1 is now completely empty, but it should
 have
 1 left:  + set1);
 
 // so both methods should always iterator through the colleciton
 they get and do the compare on its self
 
 set1 = new MyFixedTreeSetMyObject(new ComparatorMyObject(){
 
 public int compare(MyObject o1, MyObject o2)
 {
 return o1.aString.compareToIgnoreCase(o2.aString);
 }
 });
 
 set1.add(new MyObject(johan));
 set1.add(new MyObject(rob));
 
 set1.removeAll(set2);
 
 System.err.println(now this works:  + set1.size() +  == 1, and
 remainng object is  + set1.iterator().next() +  == rob);
 
 // add removed back in
 set1.add(new MyObject(johan));
 
 set1.retainAll(set2);
 
 System.err.println(set1 is now correct, it has 1 left:  + set1);
 
 }
 
 public static class MyObject
 {
 private final String aString;
 
 MyObject(String str)
 {
 aString = str;
 }
 
 @Override
 public String toString()
 {
 return aString;
 }
 }
 
 public static class MyFixedTreeSetE extends TreeSetE
 {
 public MyFixedTreeSet(Comparator? super E comparator)
 {
 super(comparator);
 }
 
 @Override
 public boolean retainAll(Collection? c)
 {
 ArrayListE list = new ArrayListE();
 Iterator? e = c.iterator();
 while (e.hasNext()) {
 Object next = e.next();
 if (contains(next)) {
 list.add((E)next);
 }
 }
 boolean modified = list.size()  size();
 if (modified)
 {
 clear();
 for (E item : list)
 {
 add(item);
 }
 }
 return modified;
 }
 
 @Override
 public boolean removeAll(Collection? c)
 {
 boolean modified = false;
 for (Iterator? i = c.iterator(); i.hasNext(); )
  modified |= remove(i.next());
 return modified;
 }
 }
 }
 
 johan
 
 
 
 On Wed, Mar 4, 2009 at 15:35, Brill Pappin br...@pappin.ca wrote:
 
 if xxx is a mutable Set then it should work.

 However you have to be careful about how you remove elements from the
 collection you working with, depending on your you do it, you'll get an
 exception about  concurrent modification.

 - Brill


 On 3-Mar-09, at 5:44 PM, Johan Compagner wrote:

  Is this the same?

 Set set1 = xxx
 Collection col1 = xxx;

 foreach (col in col1)
 set1.remove(col)

 or

 set1.removeAll(col1);


 ???



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Re: Button onSubmit not called, instead page reloads


Edwin,

Put a feedback panel on your page - you may have validation errors.

Regards - Cemal
http://jWeekend.com jWeekend 



Edwin Ansicodd wrote:
 
 Have a page that extends another page that in turn extends
 org.apache.wicket.markup.html.WebPage. Have added a form that extends
 org.apache.wicket.markup.html.form.Form to this page.  In this form, I
 have a org.apache.wicket.markup.html.form.Button
 
 Button searchButton = new Button(searchButton){
   @Override
   public void onSubmit() {
super.onSubmit();
System.out.println(in searchButton);
SearchPage.this.updateList();
   }   
 
 in the html for the button:
 
 input type=submit wicket:id=searchButton value=submit/
 
 but when I click the button, instead of calling the onSubmit(), the page
 itself is reloaded.  
 
 Would anyone have any ideas what might be wrong?
 
 
 

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Re: DropDownChoice with disabled items


Adriano,

Take a look at a mini-presentation I gave at one of our London Wicket Events
sometime in last couple of years on Select and SelectOption at
http://jweekend.com/dev/ArticlesPage/  .

Regards - Cemal
http://jWeekend.com jWeekend  


Adriano dos Santos Fernandes-3 wrote:
 
 Is there an easy way to do it? Output would be:
 
 select
 optionEnabled item/option
 option disabled=disabledDisabled item/option
 ...
 /select
 
 
 Adriano
 
 
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Re: setRequired() final?


Kaspar,

+1

Regards - Cemal
http://jWeekend.com jWeekend 


hbf wrote:
 
 On 05.03.2009, at 10:49, Kaspar Fischer wrote:
 
 I have a form component to select items and would like to add lower  
 and upper constraints on the number of items that need to be set by  
 the user. I added setMin() and setMax() methods and would like to  
 override setRequired() to call setMin(1). However,  
 FormComponent.setRequired is final. Is there a particular reason for  
 this?
 
 On second thoughts I think I am mixing two concerns her: requiring  
 input and validation. I guess in my case, required is meaningless  
 (the list of selected items should not be null). And the constraint on  
 the number of items should be added via a validator.
 
 Kaspar
 
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Re: Uppercasing inputs


Igor,

If there was a Java type called UpperCaseString that's what the developer
would use as the underlying object and you would not have this objection.
What's the difference between a converter translating 2009-04-04 to a
java.util.Date or even to a LunchDate which always sets the time part to
midday?

I agree clearly that the translation should not be done by the validator.

Regards - Cemal
http;//jWeekend.com


igor.vaynberg wrote:
 
 using conversion and validation for this is wrong.
 
 converters in wicket are meant to convert from type-string because
 the web is type-agnostic. a string-string conversion is not a
 conversion from wicket's point of view. yes, the code is somewhat
 unclear, we are going to address this in 1.5 where we can change some
 api and better name things.
 
 validation is also wrong. validation checks user input. the
 requirement to have this entered in uppercase is not on the user, it
 is on the system. so a validator should not fail because something was
 entered in non-uppercase.
 
 -igor
 
 
 On Thu, Mar 5, 2009 at 1:26 AM, jWeekend jweekend_for...@cabouge.com
 wrote:

 Martijn,

 Is there not already an EasyUpperCaseRUs.com web service you can
 subscribe
 to for unlimited conversions at an annual fee of under 30,000USD (or
 100USD/conversion) who also have a 5 free conversions trial
 subscription?

 Ether way, I would suggest this be done at conversion time so validation
 can
 do its job properly and you're not handing off conversion
 responsibilities
 where they don't belong. Some solutions leaving this transformation of
 the
 text input by the user until after conversion in the form processing
 life-cycle may be less lines of code (or less classes), but IMO, are
 bending
 rules and ignoring good design principles.

 Of course, others may disagree and come up with all sorts of neat
 solutions that still manage to upper-case a string; how about just cut
 out
 the middle-man altogether and do it in a stored-procedure triggered on
 INSERT and UPDATE - that would work too, but wouldn't be my choice.

 There's also a degree of it depends here, but generally, the
 form-processing life-cycle should be respected or explicitly overridden
 for
 a good design reason (to meet user requirements).

 Regards - Cemal
 http://jWeekend.com jWeekend


 Martijn Dashorst wrote:

 I suggest setting up an ESB with a UppercaseService that is available
 through EJB/SOAP/JAX-RS and JSON. UppercaseModel could then access
 that UppercaseService to make the value uppercase.

 Martijn

 On Thu, Mar 5, 2009 at 12:50 AM, Igor Vaynberg igor.vaynb...@gmail.com
 wrote:
 you can create a convertermodel that takes an instance of iconverter
 and uses that to convert the values, then you can subclass textfield,
 override initmodel() and wrap any model the textfield had with this
 one.

 that way everyone is happy!

 -igor

 On Wed, Mar 4, 2009 at 3:29 PM, Jeremy Thomerson
 jer...@wickettraining.com wrote:
 LOL!  Nah - I would just change all the setters on every domain object
 to
 be:

 public void setFoo(String foo) {
  this.foo = foo == null ? null : foo.toUpperCase();
 }

 Or, maybe I'd use AOP and build an aspect that could automatically
 intercept
 calls to com.mydomain setters that take a single string argument and
 do
 the
 upper-casing there!

 It's makes me smile to think of how many ways a single thing can be
 done.

 Leszek - you should now definitely have plenty of choices.  Pick which
 feels
 best / most comfortable for you!

 On Wed, Mar 4, 2009 at 5:22 PM, jWeekend
 jweekend_for...@cabouge.comwrote:


 Igor,

 Nope, not for me (this time).
 Here's the Javadoc for updateModel:
         * Updates this components model from the request, it expects
 that
 the
 object is already
         * converted through the convertInput() call that is called by
 the
 validate() method when a form
         * is being processed.

 Regards - Cemal
 http://jWeekend.com jWeekend


 igor.vaynberg wrote:
 
  pft, you guys!
 
  i would go with the simplest!
 
  class uppercasetextfield extends textfieldstring {
          public void updatemodel()
        {
                final String str=getconvertedinput();
 
 setdefaultmodelobject((str==null)?null:str.touppercase());
        }
  }
 
  done!
 
  -igor
 
  On Wed, Mar 4, 2009 at 3:07 PM, jWeekend
 jweekend_for...@cabouge.com
  wrote:
 
  Jeremy,
 
  I sensed you were uncomfortable with my most Wicket-way
 suggestion
 when
  I
  read
  http://www.nabble.com/RE%3A-Uppercasing-inputs-p22338461.htmlyour
  previous post on this thread  stating that the model doing the
  transformation work was on the right track; it is not unusual
 that
 more
  than one design can satisfy a given requirement.
 
  Do you like the idea of a model being responsible for conversion
 of
  users'
  textual input?
 
  Your article illustrates the use of nested models nicely but on
 this
  occasion I would probably go with
  http://www.nabble.com/Re%3A-Uppercasing-inputs-p22332471.html
 Adriano's

Re: Uppercasing inputs


Igor,

 anyways, just letting you know the intention behind the converters in
 wicket.

OK - that's exactly the thing that needs to be crystal clear.
So the bottom line is that the if in your scenario the user entering lower
case strings is acceptable then, in Wicket, the conversion to upper-case is
not a job for IConverter and something downstream should take care of a the
transformation to upper case (within Wicket or further down).

If the user input should not even be submitted unless it is in upper case,
then use  http://www.nabble.com/Re%3A-Uppercasing-inputs-p22332471.html
Adriano's solution  or something that has a similar effect.

Is that summary correct?

Regards - Cemal
http://jWeekend.om jWeekend 


igor.vaynberg wrote:
 
 On Thu, Mar 5, 2009 at 8:12 AM, jWeekend jweekend_for...@cabouge.com
 wrote:

 Igor,

 If there was a Java type called UpperCaseString that's what the developer
 would use as the underlying object and you would not have this objection.
 What's the difference between a converter translating 2009-04-04 to a
 java.util.Date or even to a LunchDate which always sets the time part to
 midday?
 
 there isnt an UpperCaseString for a good reason :) if you went as far
 as creating an uppercasestring type, then i would say that it is a
 fair conversion. but then again, creating a type just to uppercase
 something seems broken, so its not a valid argument.
 
 if you had a lunchdate that sets the time to noon it would be a fair
 conversion because you would be converting the string date portion to
 a proper type. but then again, why would you have a lunchdate and not
 just use date if you already know the time is always noon?
 
 the point of converters is to take a type-agnostic input in a form of
 a string and convert it to a proper type. if your expected type is
 also a string then really no conversion should happen. there are
 *type* converters, thats is why they have tostring(object) and
 toobject(string), not a single object convert(object). anyways, just
 letting you know the intention behind the converters in wicket. i
 would say what you are doing is abusing the system and it is not
 guaranteed to keep working in 1.5. just my two cents.
 
 I agree clearly that the translation should not be done by the validator.
 
 my point was not that the conversion should not be done by the
 validator, my point was that the validator should not check the
 uppercase requirement. entering something in uppercase is not a
 requirement on the user its a requirement on the system that stores
 the input, validators deal with user-related requirements.
 
 -igor
 

 Regards - Cemal
 http;//jWeekend.com


 igor.vaynberg wrote:

 using conversion and validation for this is wrong.

 converters in wicket are meant to convert from type-string because
 the web is type-agnostic. a string-string conversion is not a
 conversion from wicket's point of view. yes, the code is somewhat
 unclear, we are going to address this in 1.5 where we can change some
 api and better name things.

 validation is also wrong. validation checks user input. the
 requirement to have this entered in uppercase is not on the user, it
 is on the system. so a validator should not fail because something was
 entered in non-uppercase.

 -igor


 On Thu, Mar 5, 2009 at 1:26 AM, jWeekend jweekend_for...@cabouge.com
 wrote:

 Martijn,

 Is there not already an EasyUpperCaseRUs.com web service you can
 subscribe
 to for unlimited conversions at an annual fee of under 30,000USD (or
 100USD/conversion) who also have a 5 free conversions trial
 subscription?

 Ether way, I would suggest this be done at conversion time so
 validation
 can
 do its job properly and you're not handing off conversion
 responsibilities
 where they don't belong. Some solutions leaving this transformation of
 the
 text input by the user until after conversion in the form processing
 life-cycle may be less lines of code (or less classes), but IMO, are
 bending
 rules and ignoring good design principles.

 Of course, others may disagree and come up with all sorts of neat
 solutions that still manage to upper-case a string; how about just cut
 out
 the middle-man altogether and do it in a stored-procedure triggered on
 INSERT and UPDATE - that would work too, but wouldn't be my choice.

 There's also a degree of it depends here, but generally, the
 form-processing life-cycle should be respected or explicitly overridden
 for
 a good design reason (to meet user requirements).

 Regards - Cemal
 http://jWeekend.com jWeekend


 Martijn Dashorst wrote:

 I suggest setting up an ESB with a UppercaseService that is available
 through EJB/SOAP/JAX-RS and JSON. UppercaseModel could then access
 that UppercaseService to make the value uppercase.

 Martijn

 On Thu, Mar 5, 2009 at 12:50 AM, Igor Vaynberg
 igor.vaynb...@gmail.com
 wrote:
 you can create a convertermodel that takes an instance of iconverter
 and uses that to convert the values, then you can subclass textfield

Re: Uppercasing inputs


Dear Software House,

We realise that our requirement is very demanding and challenging but we are
not used to such honestly; we usually have to pay for several man years of a
team of top software experts before they discover that they cannot deliver a
solution to our problem.

As a sign of our gratitude and respect for your expert foresight, we would
like to engage your services for the next 12 months to provide us with the
value of PI, accurate to 3 decimal places, as long as you are willing to
explain the algorithm to our president who has been wondering why this is
not the same as 22/7 since he was kicked out of school at the age of 15 for
beating up his Ethics teacher, despite being quite good at mathematics.

Your Grateful Customer

 

Peter Ertl-3 wrote:
 
 So what's the result o this?
 
 My dear customer, actually it is not possible to upper-case your  
 input because type conversion doesn't fit, validation is the wrong  
 place,too, and javascript uppercasing is not reliable if javascript is  
 disabled. However we can compute the 100.000.000 digit of pi but  
 uppercase is too complicated...
 
 *g*
 
 
 Am 05.03.2009 um 17:46 schrieb jWeekend:
 

 Igor,

 anyways, just letting you know the intention behind the converters in
 wicket.

 OK - that's exactly the thing that needs to be crystal clear.
 So the bottom line is that the if in your scenario the user entering  
 lower
 case strings is acceptable then, in Wicket, the conversion to upper- 
 case is
 not a job for IConverter and something downstream should take care  
 of a the
 transformation to upper case (within Wicket or further down).

 If the user input should not even be submitted unless it is in upper  
 case,
 then use  http://www.nabble.com/Re%3A-Uppercasing-inputs- 
 p22332471.html
 Adriano's solution  or something that has a similar effect.

 Is that summary correct?

 Regards - Cemal
 http://jWeekend.om jWeekend


 igor.vaynberg wrote:

 On Thu, Mar 5, 2009 at 8:12 AM, jWeekend  
 jweekend_for...@cabouge.com
 wrote:

 Igor,

 If there was a Java type called UpperCaseString that's what the  
 developer
 would use as the underlying object and you would not have this  
 objection.
 What's the difference between a converter translating 2009-04-04  
 to a
 java.util.Date or even to a LunchDate which always sets the time  
 part to
 midday?

 there isnt an UpperCaseString for a good reason :) if you went as far
 as creating an uppercasestring type, then i would say that it is a
 fair conversion. but then again, creating a type just to uppercase
 something seems broken, so its not a valid argument.

 if you had a lunchdate that sets the time to noon it would be a fair
 conversion because you would be converting the string date portion to
 a proper type. but then again, why would you have a lunchdate and not
 just use date if you already know the time is always noon?

 the point of converters is to take a type-agnostic input in a form of
 a string and convert it to a proper type. if your expected type is
 also a string then really no conversion should happen. there are
 *type* converters, thats is why they have tostring(object) and
 toobject(string), not a single object convert(object). anyways, just
 letting you know the intention behind the converters in wicket. i
 would say what you are doing is abusing the system and it is not
 guaranteed to keep working in 1.5. just my two cents.

 I agree clearly that the translation should not be done by the  
 validator.

 my point was not that the conversion should not be done by the
 validator, my point was that the validator should not check the
 uppercase requirement. entering something in uppercase is not a
 requirement on the user its a requirement on the system that stores
 the input, validators deal with user-related requirements.

 -igor


 Regards - Cemal
 http;//jWeekend.com


 igor.vaynberg wrote:

 using conversion and validation for this is wrong.

 converters in wicket are meant to convert from type-string  
 because
 the web is type-agnostic. a string-string conversion is not a
 conversion from wicket's point of view. yes, the code is somewhat
 unclear, we are going to address this in 1.5 where we can change  
 some
 api and better name things.

 validation is also wrong. validation checks user input. the
 requirement to have this entered in uppercase is not on the user,  
 it
 is on the system. so a validator should not fail because  
 something was
 entered in non-uppercase.

 -igor


 On Thu, Mar 5, 2009 at 1:26 AM, jWeekend jweekend_for...@cabouge.com 
 
 wrote:

 Martijn,

 Is there not already an EasyUpperCaseRUs.com web service you can
 subscribe
 to for unlimited conversions at an annual fee of under 30,000USD  
 (or
 100USD/conversion) who also have a 5 free conversions trial
 subscription?

 Ether way, I would suggest this be done at conversion time so
 validation
 can
 do its job properly and you're not handing off conversion
 responsibilities
 where they don't belong

Re: Appropriate tool for time series


Jurek,

http://wicketstuff.org/grid-examples/data-grid/editable.1 This  is quite
nice.

Regads - Cemal
http://jWeekend.com jWeekend 



Jurek Piasek wrote:
 
 Hi,
 
 I would like to create a table/grid in wicket for presenting multiple time
 series in one table.  I have three time series to present in one table.
 Each
 time series is stored as a map with date as key and value as double
 (MapDate, Double). The table/grid would consist of four columns; the
 date,
 time series 1, time series 2, time series 3.
 
 What would be the best approach to create an editable and pageable
 table/grid to present these three time series?
 
 Many thanks!
 Jurek.
 
 

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London Wicket Event - 1st of April @ Google


Our next London Wicket Event will be on the evening of Wednesday, April 1st,
at Google.
Martijn Dashorst will be flyiing over from Holland for the evening; as well
as giving us a couple of interesting presentations, he will be signing your
copies of Wicket In Action. Manning are kindly sending over a few copies
too, so we'll be having another of our well-organised(?!) raffles.
Al has fixed a bigger room for us at Google, who have been kindly hosting
our events, but we do expect a fairly full auditorium again so 
http://jweekend.com/dev/LWUGReg/ register  early.

Al and I (and Martijn, no doubt, this time) will also run a general Wicket
QA to wrap things up as usual.

We'll be getting in some hot Pizza for around 18:15 and then:
*  http://jWeekend.com Cemal Bayramoglu :  Welcome/Introduction
* Marc Ziman: My Agile Stack (Wicket, Spring, Hibernate, MySQL)
*  http://wicketinaction.com Martijn Dashorst : Complex UIs With Wicket
* Martijn Dashorst: Quality Control
*  http://herebebeasties.com Al Maw : TBD
* Al Maw  Cemal Bayramoglu: General Wicket QA
If you're not in a rush to get away join us for the customary visit to a
local pub straight after the QA.

We're lucky to attract a very good crowd and they say really nice things
about our events, so if you've never been, you'd most likely enjoy the
experience.

Full details and registration are at  at  http://jweekend.com/dev/LWUGReg/
the usual place  - don't forget to confirm (or cancel) your registration
using the link in the automated email.

Regards - Cemal
http://jWeekend.com jWeekend 
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Re: Uppercasing inputs


Leszek,

... or, probably the most Wicket-way of doing this is to make a TextField
subclass that overrides getConverter to return your special IConverter
implementation which performs the capitalisation in its convertToObject.

Regards - Cemal
http://jWeekend.com jWeekend 


Leszek Gawron-2 wrote:
 
 Hello,
 
 one of my customers has this weird requirement that all data should be 
 input/shown uppercase. I can easily add
 
 input {
text-transform: uppercase;
 }
 
 to my css rules, but this does not change the fact that data written 
 into database will still be case sensitive.
 
 How can I create a behavior for TextField so that the dat is uppercased 
 before being written to the model?
 
 my regards
 
 -- 
 Leszek Gawron
 
 -
 To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
 For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 

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Re: Uppercasing inputs


Jeremy,

I sensed you were uncomfortable with my most Wicket-way suggestion when I
read  http://www.nabble.com/RE%3A-Uppercasing-inputs-p22338461.html your
previous post on this thread  stating that the model doing the
transformation work was on the right track; it is not unusual that more
than one design can satisfy a given requirement.
 
Do you like the idea of a model being responsible for conversion of users'
textual input?

Your article illustrates the use of nested models nicely but on this
occasion I would probably go with 
http://www.nabble.com/Re%3A-Uppercasing-inputs-p22332471.html Adriano's idea 
for a client side, instant gratification, solution, and a custom text field
with a converter if the conversion can happen later, on the server.

Regards - Cemal
http://jWeekend.com jWeekend 



Jeremy Thomerson-5 wrote:
 
 Cemal,
   I think I have to respectfully disagree with you here.  I describe what
 I
 feel is a better solution, and a little bit of why in this blog post from
 a
 few months ago:
 
 http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/
 
   Basically, doing it the way you suggested isn't reusable across many
 components - you have to create overridden variants of each type of input.
 Also, a converter (or more specifically, an implementation of IConverter)
 is
 supposed to be for transforming a type of object to a string usable in the
 browser / form post / etc, as it's javadoc mentions.
 
   Anyway, as the saying goes there are many ways to skin a cat -
 although
 the saying isn't that great, I think it applies - there are multiple ways
 of
 accomplishing the same thing.
 
 -- 
 Jeremy Thomerson
 http://www.wickettraining.com
 
 
 On Wed, Mar 4, 2009 at 12:04 PM, jWeekend
 jweekend_for...@cabouge.comwrote:
 

 Leszek,

 ... or, probably the most Wicket-way of doing this is to make a
 TextField
 subclass that overrides getConverter to return your special IConverter
 implementation which performs the capitalisation in its convertToObject.

 Regards - Cemal
 http://jWeekend.com jWeekend


 Leszek Gawron-2 wrote:
 
  Hello,
 
  one of my customers has this weird requirement that all data should be
  input/shown uppercase. I can easily add
 
  input {
 text-transform: uppercase;
  }
 
  to my css rules, but this does not change the fact that data written
  into database will still be case sensitive.
 
  How can I create a behavior for TextField so that the dat is uppercased
  before being written to the model?
 
  my regards
 
  --
  Leszek Gawron
 
  -
  To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
  For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 

 --
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Re: Uppercasing inputs


Igor,

Nope, not for me (this time).
Here's the Javadoc for updateModel:
 * Updates this components model from the request, it expects that the
object is already
 * converted through the convertInput() call that is called by the
validate() method when a form
 * is being processed.

Regards - Cemal
http://jWeekend.com jWeekend 


igor.vaynberg wrote:
 
 pft, you guys!
 
 i would go with the simplest!
 
 class uppercasetextfield extends textfieldstring {
 public void updatemodel()
   {
   final String str=getconvertedinput();
   setdefaultmodelobject((str==null)?null:str.touppercase());
   }
 }
 
 done!
 
 -igor
 
 On Wed, Mar 4, 2009 at 3:07 PM, jWeekend jweekend_for...@cabouge.com
 wrote:

 Jeremy,

 I sensed you were uncomfortable with my most Wicket-way suggestion when
 I
 read  http://www.nabble.com/RE%3A-Uppercasing-inputs-p22338461.html your
 previous post on this thread  stating that the model doing the
 transformation work was on the right track; it is not unusual that more
 than one design can satisfy a given requirement.

 Do you like the idea of a model being responsible for conversion of
 users'
 textual input?

 Your article illustrates the use of nested models nicely but on this
 occasion I would probably go with
 http://www.nabble.com/Re%3A-Uppercasing-inputs-p22332471.html Adriano's
 idea
 for a client side, instant gratification, solution, and a custom text
 field
 with a converter if the conversion can happen later, on the server.

 Regards - Cemal
 http://jWeekend.com jWeekend



 Jeremy Thomerson-5 wrote:

 Cemal,
   I think I have to respectfully disagree with you here.  I describe
 what
 I
 feel is a better solution, and a little bit of why in this blog post
 from
 a
 few months ago:

 http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/

   Basically, doing it the way you suggested isn't reusable across many
 components - you have to create overridden variants of each type of
 input.
 Also, a converter (or more specifically, an implementation of
 IConverter)
 is
 supposed to be for transforming a type of object to a string usable in
 the
 browser / form post / etc, as it's javadoc mentions.

   Anyway, as the saying goes there are many ways to skin a cat -
 although
 the saying isn't that great, I think it applies - there are multiple
 ways
 of
 accomplishing the same thing.

 --
 Jeremy Thomerson
 http://www.wickettraining.com


 On Wed, Mar 4, 2009 at 12:04 PM, jWeekend
 jweekend_for...@cabouge.comwrote:


 Leszek,

 ... or, probably the most Wicket-way of doing this is to make a
 TextField
 subclass that overrides getConverter to return your special IConverter
 implementation which performs the capitalisation in its
 convertToObject.

 Regards - Cemal
 http://jWeekend.com jWeekend


 Leszek Gawron-2 wrote:
 
  Hello,
 
  one of my customers has this weird requirement that all data should
 be
  input/shown uppercase. I can easily add
 
  input {
     text-transform: uppercase;
  }
 
  to my css rules, but this does not change the fact that data written
  into database will still be case sensitive.
 
  How can I create a behavior for TextField so that the dat is
 uppercased
  before being written to the model?
 
  my regards
 
  --
  Leszek Gawron
 
  -
  To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
  For additional commands, e-mail: users-h...@wicket.apache.org
 
 
 

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Re: Uppercasing inputs


Igor,

Still no ;-)
A key point is that conversion should happen before validation so you can
check if the transformed data (not just the plain text) is valid. Otherwise,
what is your validation good for?

Regards - Cemal
http://jWeekend.com jWeekend 

PS You are still going to help when I get stuck, aren't you?
PPS Is PTF pause for thought, or were you swearing?



igor.vaynberg wrote:
 
 you can create a convertermodel that takes an instance of iconverter
 and uses that to convert the values, then you can subclass textfield,
 override initmodel() and wrap any model the textfield had with this
 one.
 
 that way everyone is happy!
 
 -igor
 
 On Wed, Mar 4, 2009 at 3:29 PM, Jeremy Thomerson
 jer...@wickettraining.com wrote:
 LOL!  Nah - I would just change all the setters on every domain object to
 be:

 public void setFoo(String foo) {
  this.foo = foo == null ? null : foo.toUpperCase();
 }

 Or, maybe I'd use AOP and build an aspect that could automatically
 intercept
 calls to com.mydomain setters that take a single string argument and do
 the
 upper-casing there!

 It's makes me smile to think of how many ways a single thing can be done.

 Leszek - you should now definitely have plenty of choices.  Pick which
 feels
 best / most comfortable for you!

 On Wed, Mar 4, 2009 at 5:22 PM, jWeekend
 jweekend_for...@cabouge.comwrote:


 Igor,

 Nope, not for me (this time).
 Here's the Javadoc for updateModel:
         * Updates this components model from the request, it expects
 that
 the
 object is already
         * converted through the convertInput() call that is called by
 the
 validate() method when a form
         * is being processed.

 Regards - Cemal
 http://jWeekend.com jWeekend


 igor.vaynberg wrote:
 
  pft, you guys!
 
  i would go with the simplest!
 
  class uppercasetextfield extends textfieldstring {
          public void updatemodel()
        {
                final String str=getconvertedinput();
               
 setdefaultmodelobject((str==null)?null:str.touppercase());
        }
  }
 
  done!
 
  -igor
 
  On Wed, Mar 4, 2009 at 3:07 PM, jWeekend jweekend_for...@cabouge.com
  wrote:
 
  Jeremy,
 
  I sensed you were uncomfortable with my most Wicket-way suggestion
 when
  I
  read
  http://www.nabble.com/RE%3A-Uppercasing-inputs-p22338461.htmlyour
  previous post on this thread  stating that the model doing the
  transformation work was on the right track; it is not unusual that
 more
  than one design can satisfy a given requirement.
 
  Do you like the idea of a model being responsible for conversion of
  users'
  textual input?
 
  Your article illustrates the use of nested models nicely but on this
  occasion I would probably go with
  http://www.nabble.com/Re%3A-Uppercasing-inputs-p22332471.html
 Adriano's
  idea
  for a client side, instant gratification, solution, and a custom text
  field
  with a converter if the conversion can happen later, on the server.
 
  Regards - Cemal
  http://jWeekend.com jWeekend
 
 
 
  Jeremy Thomerson-5 wrote:
 
  Cemal,
    I think I have to respectfully disagree with you here.  I describe
  what
  I
  feel is a better solution, and a little bit of why in this blog post
  from
  a
  few months ago:
 
 
 http://www.jeremythomerson.com/blog/2008/11/06/wicket-the-power-of-nested-models/
 
    Basically, doing it the way you suggested isn't reusable across
 many
  components - you have to create overridden variants of each type of
  input.
  Also, a converter (or more specifically, an implementation of
  IConverter)
  is
  supposed to be for transforming a type of object to a string usable
 in
  the
  browser / form post / etc, as it's javadoc mentions.
 
    Anyway, as the saying goes there are many ways to skin a cat -
  although
  the saying isn't that great, I think it applies - there are multiple
  ways
  of
  accomplishing the same thing.
 
  --
  Jeremy Thomerson
  http://www.wickettraining.com
 
 
  On Wed, Mar 4, 2009 at 12:04 PM, jWeekend
  jweekend_for...@cabouge.comwrote:
 
 
  Leszek,
 
  ... or, probably the most Wicket-way of doing this is to make a
  TextField
  subclass that overrides getConverter to return your special
 IConverter
  implementation which performs the capitalisation in its
  convertToObject.
 
  Regards - Cemal
  http://jWeekend.com jWeekend
 
 
  Leszek Gawron-2 wrote:
  
   Hello,
  
   one of my customers has this weird requirement that all data
 should
  be
   input/shown uppercase. I can easily add
  
   input {
      text-transform: uppercase;
   }
  
   to my css rules, but this does not change the fact that data
 written
   into database will still be case sensitive.
  
   How can I create a behavior for TextField so that the dat is
  uppercased
   before being written to the model?
  
   my regards
  
   --
   Leszek Gawron
  
  
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Re: Uppercasing inputs