date:20080929


Hi,

I'm currently struggling with the famous lazy load exception under 
spring + jpa with wicket.


The problem is, in my case, that i pull an entity from the database 
using a spring-bean (@SpringBean) and JPA (hibernate). Then in the 
wicket class i need to walk the entity tree a bit, based on the needs of 
the user (preloading wont work, as i dont know the direction the user 
wants to walk and the whole entity tree is too complex to grab it all at 
once).


If I use the Entity myEntity.getMyOtherConnectedEntity I get the lazy 
load exception (transaction already closed). So I tried to use the 
OpenSessionInViewFilter to solve this, but it just won't work - no 
reason why, as the error stays exactly the same.


Currently I ended up using this:
@PersistenceContext(type = PersistenceContextType.EXTENDED)
private EntityManager em;

However, I'm not sure if this is the way it is supposed to be?
( I read so far that this disables a big part of springs-transaction 
handling support but didnt see any impacts so far)


Has anyone a different aproach/ solution for this using wicket + spring 
with JPA?


Best,

Korbinan

PS: im on wicket 1.4-m3

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Re: wicket + spring + jpa/ hibernate = lazy load exception

2008-09-29 Thread Nino Saturnino Martinez Vazquez Wael


Hi Korbinian

Im facing the same problems... I also use extended.. So gonna be great 
to see the outcome of this thread.. I think it could be something about 
missing usage of loadabledetachable model..?






Korbinian Bachl - privat wrote:

Hi,

I'm currently struggling with the famous lazy load exception under 
spring + jpa with wicket.


The problem is, in my case, that i pull an entity from the database 
using a spring-bean (@SpringBean) and JPA (hibernate). Then in the 
wicket class i need to walk the entity tree a bit, based on the needs 
of the user (preloading wont work, as i dont know the direction the 
user wants to walk and the whole entity tree is too complex to grab it 
all at once).


If I use the Entity myEntity.getMyOtherConnectedEntity I get the lazy 
load exception (transaction already closed). So I tried to use the 
OpenSessionInViewFilter to solve this, but it just won't work - no 
reason why, as the error stays exactly the same.


Currently I ended up using this:
@PersistenceContext(type = PersistenceContextType.EXTENDED)
private EntityManager em;

However, I'm not sure if this is the way it is supposed to be?
( I read so far that this disables a big part of springs-transaction 
handling support but didnt see any impacts so far)


Has anyone a different aproach/ solution for this using wicket + 
spring with JPA?


Best,

Korbinan

PS: im on wicket 1.4-m3

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--
-Wicket for love

Nino Martinez Wael
Java Specialist @ Jayway DK
http://www.jayway.dk
+45 2936 7684


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how to navigate from edit mode to view mode

2008-09-29 Thread Singh Mukesh

Hi

I have created a bookmark portlet using wicket. And the bookmark portlet
includes two portlet- mode i.e. view and edit. I have deployed the basic
portlet on sun portal. I have a problem with the navigation form edit
mode to view mode.

Do you have any good suggestion how to solve this problem?

Thanks in advance

Thanks and Regards,

MUKESH SINGH
CAPGEMINI Consultant
Arrive AS
T (+47) 46 47 90 16
E-post: [EMAIL PROTECTED]
http://servicedesk.arrive.no

Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

Are you really that surprised that Microsoft is not shipping YUI after
the failed attempts to take over Yahoo? :)

Seriously, there are technical reasons why I considered to use YUI,
not political. Just because some companies use jQuery it doesn't mean
Wicket should use it. Say most of the companies use JSF, does it mean
we should?

As I said, I really like the way YUI api is designed. Also there are
things in YUI core that are only available as jQuery plugins. The
plugins have different lifecycle than the core and are mantained
differently.

Also keep in mind that the javascript Wicket-Ajax uses is internal to Wicket.

Let me give you an example where I find YUI (3) api more elegant.
That's just one of many things and it is of course my personal
opinion.

If i want to unbind event in jQuery, i need to remember event name and
the exact handler instance. For YUI, i get event handler on bind that
i can just call detach on and the event is unbound.

var h = Y.on(click, handleClick, element);
h.detach();

Of course it is possible to mock the behavior with jQuery, but that's
not really the point, is it?

Another this is functionality provided in core. YUI can handle
multipart Ajax uploads (well, it can't do that in 3.0 yet, but it's
very likely it will be as it was supported in 2.x). For jQuery, i need
to use a plugin for it.

The reason why I feel so uneasy about plugins is that I've tried some.
And the quality really varies.

I think selectors might be the part where jQuery really shines. But
that's the part not needed by Wicket at all. Plus YUI has selectors
too (although maybe not that fast - I don't know, haven't profiled
them). Also the new YUI3 node API resembles jQuery chaining API for
those who like it.

-Matej

On Mon, Sep 29, 2008 at 4:01 AM, Jörn Zaefferer
[EMAIL PROTECTED] wrote:
There is something new to consider when choosing a JavaScript library
as Wicket's base:
http://www.jondavis.net/blog/post/2008/09/jQuery-Has-Won-The-3-Year-Javascript-Framework-Battle-As-Far-As-Im-Concerned.aspx
http://www.hanselman.com/blog/jQuerytoshipwithASPNETMVCandVisualStudio.aspx

Jörn

On Wed, Aug 27, 2008 at 1:05 AM, Matej Knopp [EMAIL PROTECTED] wrote:
On Wed, Aug 27, 2008 at 12:50 AM, Jörn Zaefferer
[EMAIL PROTECTED] wrote:
On Tue, Aug 26, 2008 at 10:19 PM, Matej Knopp [EMAIL PROTECTED] wrote:
Hi,

On Tue, Aug 26, 2008 at 9:24 PM, jWeekend [EMAIL PROTECTED] wrote:

Matej,

What are the implications of the decision to base Wicket Ajax Next
Generation on YUI in terms of choosing a Javascript library for future
Wicket based web front ends?
actually, there really are none. The use of YUI will be more or less
internal to Wicket, so you can continue using jQuery, YUI2 or whatever
else you are using. Everything in Wicket (and YUI) is namespaced so
there are no conflicts.

Of course there is the overhead of including two or more libraries in
an application, which don't find desirable.

+ there's huge number and variety of jQuery plugins for those special
occasions.
Unfortunately the quality of plugins varies. For actual wicket ajax
implementation i prefer to stick with the core thing, and that's where
YUI definitely beats jquery. I don't say that there are no plugins for
jQuery that covers YUI functionality. Question is how well are those
plugins supported and maintained.

Whatever the framework, I think its a good idea to start with
something well supported and tested. Thats why I use

Re: wicket + spring + jpa/ hibernate = lazy load exception


I think it could be something about
 missing usage of loadabledetachable model..?

not for me, as the original entity is pulled using an 
loadabledetachableModel via a SortedDataProvider :/


if you look around, the all called solution for this is the 
OpenSessionInViewFilter and the usage of
bean id=transactionManager 
class=org.springframework.orm.jpa.JpaTransactionManager

for that (latter one is used by me, too)

However, the OpenSessionInViewFilter will not work with wicket, even if 
mapped to /* in the web.xml


Best,

Korbinian




Nino Saturnino Martinez Vazquez Wael schrieb:

Hi Korbinian

Im facing the same problems... I also use extended.. So gonna be great 
to see the outcome of this thread.. I think it could be something about 
missing usage of loadabledetachable model..?






Korbinian Bachl - privat wrote:

Hi,

I'm currently struggling with the famous lazy load exception under 
spring + jpa with wicket.


The problem is, in my case, that i pull an entity from the database 
using a spring-bean (@SpringBean) and JPA (hibernate). Then in the 
wicket class i need to walk the entity tree a bit, based on the needs 
of the user (preloading wont work, as i dont know the direction the 
user wants to walk and the whole entity tree is too complex to grab it 
all at once).


If I use the Entity myEntity.getMyOtherConnectedEntity I get the lazy 
load exception (transaction already closed). So I tried to use the 
OpenSessionInViewFilter to solve this, but it just won't work - no 
reason why, as the error stays exactly the same.


Currently I ended up using this:
@PersistenceContext(type = PersistenceContextType.EXTENDED)
private EntityManager em;

However, I'm not sure if this is the way it is supposed to be?
( I read so far that this disables a big part of springs-transaction 
handling support but didnt see any impacts so far)


Has anyone a different aproach/ solution for this using wicket + 
spring with JPA?


Best,

Korbinan

PS: im on wicket 1.4-m3

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Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

It would be a big plus for me if Wicket would adopt jQuery. Drupal
does that, and anyone writing a Drupal module can rely on the fact
that jQuery is available. Same for Wordpress, where plugin authors can
rely on the availability of jQuery. And not having to load more than
one library, internal or not, is a good thing performance-wise.

In response to your examples:

Unbinding only particular event handlers without having a reference to
the handler function can be achieved with namespaces:
$(element).bind(click.somethingUnique, handleClick);
$(element).unbind(click.somethingUnique);

That way you don't have to keep a reference at all, while its possible
to group multiple events into one namespace. This is now heavily used
by most jQuery UI components when destroyed, to clean up their own
event handlers without affecting any other.

Multiple file upload we'll eventually have as part of jQuery UI. That
would then be the same level of official and supported component that
YUI provides. The descision to add new components is partly
community-driven. So if you think multipart ajax uploads should be
added, just ask for it.

About selectors: John Resig is currently working on a new selector
engine that likely outperformances any other selector engine available
so far. Its developed as a standalone library, so its likely that
MochKit and Prototype will use it, too.
jQuery 1.3. will also provide heavy performance improvements for DOM
manipulations, which I'm very exited about as that is usually where
most time is spent. Its easy to avoid running certain selectors too
often, but its hard to optimize DOM manipulation in clientcode.

Anyway, thanks for taking the time to discuss this again.

Jörn

On Mon, Sep 29, 2008 at 12:54 PM, Matej Knopp [EMAIL PROTECTED] wrote:
Are you really that surprised that Microsoft is not shipping YUI after
the failed attempts to take over Yahoo? :)

Also keep in mind that the javascript Wicket-Ajax uses is internal to Wicket.

Let me give you an example where I find YUI (3) api more elegant.
That's just one of many things and it is of course my personal
opinion.

If i want to unbind event in jQuery, i need to remember event name and
the exact handler instance. For YUI, i get event handler on bind that
i can just call detach on and the event is unbound.

var h = Y.on(click, handleClick, element);
h.detach();

Of course it is possible to mock the behavior with jQuery, but that's
not really the point, is it?

The reason why I feel so uneasy about plugins is that I've tried some.
And the quality really varies.

-Matej

Jörn

On Wed, Aug 27, 2008 at 1:05 AM, Matej Knopp [EMAIL PROTECTED] wrote:
On Wed, Aug 27, 2008 at 12:50 AM, Jörn Zaefferer
[EMAIL PROTECTED] wrote:
On Tue, Aug 26, 2008 at 10:19 PM, Matej Knopp [EMAIL PROTECTED] wrote:
Hi,

On Tue, Aug 26, 2008 at 9:24 PM, jWeekend [EMAIL PROTECTED] wrote:

Matej,

What are the implications of the decision to base Wicket Ajax Next
Generation on YUI in terms of choosing a Javascript library for future
Wicket based web front ends?
actually, there really are none. The use of YUI will be more or less
internal to Wicket, so you can continue using jQuery, YUI2 or whatever
else you are using. Everything in Wicket (and YUI) is namespaced so
there are no conflicts.

Of course there is the overhead of including two or more libraries in
an application, which don't find desirable.

+ there's huge

Re: wicket + spring + jpa/ hibernate = lazy load exception

On Mon, Sep 29, 2008 at 7:14 AM, Korbinian Bachl - privat
[EMAIL PROTECTED] wrote:

 However, the OpenSessionInViewFilter will not work with wicket, even if
 mapped to /* in the web.xml

Huh?  We use it and it works just fine.  By the way, have you tried
OpenEntityManagerInViewFilter if you're using JPA?

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Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

On Mon, Sep 29, 2008 at 1:18 PM, Jörn Zaefferer
[EMAIL PROTECTED] wrote:
 It would be a big plus for me if Wicket would adopt jQuery. Drupal
 does that, and anyone writing a Drupal module can rely on the fact
 that jQuery is available. Same for Wordpress, where plugin authors can
 rely on the availability of jQuery. And not having to load more than
 one library, internal or not, is a good thing performance-wise.

 In response to your examples:

 Unbinding only particular event handlers without having a reference to
 the handler function can be achieved with namespaces:
 $(element).bind(click.somethingUnique, handleClick);
 $(element).unbind(click.somethingUnique);

But that's not quite the same. This requires me to use generate and
keep a unique string. Anyway, this is a cosmetic issue only.


 That way you don't have to keep a reference at all, while its possible
 to group multiple events into one namespace. This is now heavily used
 by most jQuery UI components when destroyed, to clean up their own
 event handlers without affecting any other.

 Multiple file upload we'll eventually have as part of jQuery UI. That
 would then be the same level of official and supported component that
 YUI provides. The descision to add new components is partly
 community-driven. So if you think multipart ajax uploads should be
 added, just ask for it.
This is not about multiple file upload. We already have such
component in Wicket. This is about support for input type=file on
ajax uploads - just use hidden frame instead of xml http request.


 About selectors: John Resig is currently working on a new selector
 engine that likely outperformances any other selector engine available
 so far. Its developed as a standalone library, so its likely that
 MochKit and Prototype will use it, too.
That sure is nice, but the selectors are not used in Wicket core at all.

 jQuery 1.3. will also provide heavy performance improvements for DOM
 manipulations, which I'm very exited about as that is usually where
 most time is spent. Its easy to avoid running certain selectors too
 often, but its hard to optimize DOM manipulation in clientcode.

While we at this, I'd like to ask. Significant part of Wicket ajax is
Wicket.replaceOuterHtml method. This was really a major pain to
implement and stabilize. What it does is basically a replaceOuterHTML
call for all browser but it works in totally cross browser consistent
way. I.e. it allows table rows, cells etc replaced in internet
explorer and it also executes embedded script tags on browsers that
would normally not do that (basically all except for Firefox). So my
question is, just out of curiosity, is there/will there be similar
functionality provided by jQuery?

 Anyway, thanks for taking the time to discuss this again.

Sure. Keep in mind that the decision is not carved to stone. I'm open
to argument, but I'm really interested in technical aspect. Having
Microsoft will use jQuery is not really a valid argument to me :)

-Matej


 Jörn

 On Mon, Sep 29, 2008 at 12:54 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 Are you really that surprised that Microsoft is not shipping YUI after
 the failed attempts to take over Yahoo? :)

 Seriously, there are technical reasons why I considered to use YUI,
 not political. Just because some companies use jQuery it doesn't mean
 Wicket should use it. Say most of the companies use JSF, does it mean
 we should?

 As I said, I really like the way YUI api is designed. Also there are
 things in YUI core that are only available as jQuery plugins. The
 plugins have different lifecycle than the core and are mantained
 differently.

 Also keep in mind that the javascript Wicket-Ajax uses is internal to Wicket.

 Let me give you an example where I find YUI (3) api more elegant.
 That's just one of many things and it is of course my personal
 opinion.

 If i want to unbind event in jQuery, i need to remember event name and
 the exact handler instance. For YUI, i get event handler on bind that
 i can just call detach on and the event is unbound.

 var h = Y.on(click, handleClick, element);
 h.detach();

 Of course it is possible to mock the behavior with jQuery, but that's
 not really the point, is it?

 Another this is functionality provided in core. YUI can handle
 multipart Ajax uploads (well, it can't do that in 3.0 yet, but it's
 very likely it will be as it was supported in 2.x). For jQuery, i need
 to use a plugin for it.

 The reason why I feel so uneasy about plugins is that I've tried some.
 And the quality really varies.

 I think selectors might be the part where jQuery really shines. But
 that's the part not needed by Wicket at all. Plus YUI has selectors
 too (although maybe not that fast - I don't know, haven't profiled
 them). Also the new YUI3 node API resembles jQuery chaining API for
 those who like it.

 -Matej

 On Mon, Sep 29, 2008 at 4:01 AM, Jörn Zaefferer
 [EMAIL PROTECTED] wrote:
 There is something new to consider when choosing a JavaScript

wicket panels and parent class

2008-09-29 Thread Steve Swinsburg


Hi all,

I'm a new Wicket user and am developing an application making use of  
Panels. The Panels are working, however I need to access some objects  
in the panel that are defined in the parent class and am not sure how  
to do this.


e.g.

MyProfile.java:

String userId = Profile.getCurrentUserId();

add(new MyInfoPanel(myInfoPanel));


and in MyInfoPanel.java

I need to be able to access userId for example.

This is just a basic example, I need to access certain objects in  
MyInfoPanel.java that are defined in the parent class MyProfile.java




cheers,
Steve









smime.p7s
Description: S/MIME cryptographic signature

Re: wicket panels and parent class

2008-09-29 Thread Michael Sparer


getParent() ?



Steve Swinsburg-2 wrote:
 
 Hi all,
 
 I'm a new Wicket user and am developing an application making use of  
 Panels. The Panels are working, however I need to access some objects  
 in the panel that are defined in the parent class and am not sure how  
 to do this.
 
 e.g.
 
 MyProfile.java:
 
 String userId = Profile.getCurrentUserId();
 
 add(new MyInfoPanel(myInfoPanel));
 
 
 and in MyInfoPanel.java
 
 I need to be able to access userId for example.
 
 This is just a basic example, I need to access certain objects in  
 MyInfoPanel.java that are defined in the parent class MyProfile.java
 
 
 
 cheers,
 Steve
 
 
 
 
 
 
 
 
  
 


-
Michael Sparer
http://talk-on-tech.blogspot.com
-- 
View this message in context: 
http://www.nabble.com/wicket-panels-and-parent-class-tp19722417p19722473.html
Sent from the Wicket - User mailing list archive at Nabble.com.


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Re: wicket + spring + jpa/ hibernate = lazy load exception

2008-09-29 Thread Michael Sparer


When using the OSIV-filter the lazyload exception may only happen if the same
entity is used among different requests ... sothat it gets detached from
hibernate. have a look at
http://talk-on-tech.blogspot.com/2008/05/custom-reuseable-loadabledetachablemode.html
... that's the way we're doing it

regards,
Michael

Korbinian Bachl - privat wrote:
 
  I think it could be something about
   missing usage of loadabledetachable model..?
 
 not for me, as the original entity is pulled using an 
 loadabledetachableModel via a SortedDataProvider :/
 
 if you look around, the all called solution for this is the 
 OpenSessionInViewFilter and the usage of
 bean id=transactionManager 
 class=org.springframework.orm.jpa.JpaTransactionManager
 for that (latter one is used by me, too)
 
 However, the OpenSessionInViewFilter will not work with wicket, even if 
 mapped to /* in the web.xml
 
 Best,
 
 Korbinian
 
 
 
 
 Nino Saturnino Martinez Vazquez Wael schrieb:
 Hi Korbinian
 
 Im facing the same problems... I also use extended.. So gonna be great 
 to see the outcome of this thread.. I think it could be something about 
 missing usage of loadabledetachable model..?
 
 
 
 
 
 Korbinian Bachl - privat wrote:
 Hi,

 I'm currently struggling with the famous lazy load exception under 
 spring + jpa with wicket.

 The problem is, in my case, that i pull an entity from the database 
 using a spring-bean (@SpringBean) and JPA (hibernate). Then in the 
 wicket class i need to walk the entity tree a bit, based on the needs 
 of the user (preloading wont work, as i dont know the direction the 
 user wants to walk and the whole entity tree is too complex to grab it 
 all at once).

 If I use the Entity myEntity.getMyOtherConnectedEntity I get the lazy 
 load exception (transaction already closed). So I tried to use the 
 OpenSessionInViewFilter to solve this, but it just won't work - no 
 reason why, as the error stays exactly the same.

 Currently I ended up using this:
 @PersistenceContext(type = PersistenceContextType.EXTENDED)
 private EntityManager em;

 However, I'm not sure if this is the way it is supposed to be?
 ( I read so far that this disables a big part of springs-transaction 
 handling support but didnt see any impacts so far)

 Has anyone a different aproach/ solution for this using wicket + 
 spring with JPA?

 Best,

 Korbinan

 PS: im on wicket 1.4-m3

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 For additional commands, e-mail: [EMAIL PROTECTED]
 
 
 


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http://talk-on-tech.blogspot.com
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Re: wicket + spring + jpa/ hibernate = lazy load exception


really? - I tried it but...

would you please be so nice and post the part of the web.xml where it is 
mapped and the corresponding part of the spring-application.xml ?


what wicket version are you on? what runtime (Tomcat 6?)?

Best,

Korbinian


James Carman schrieb:

On Mon, Sep 29, 2008 at 7:14 AM, Korbinian Bachl - privat
[EMAIL PROTECTED] wrote:


However, the OpenSessionInViewFilter will not work with wicket, even if
mapped to /* in the web.xml


Huh?  We use it and it works just fine.  By the way, have you tried
OpenEntityManagerInViewFilter if you're using JPA?

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Re: wicket panels and parent class

2008-09-29 Thread Thies Edeling

And then have to cast it to the class of the parent.. which kinda kills 
the independent component based idea of reusable panels.
Why not pass along the userid when constructing? Or fetch it from the 
session.



Michael Sparer wrote:

getParent() ?



Steve Swinsburg-2 wrote:
  

Hi all,

I'm a new Wicket user and am developing an application making use of  
Panels. The Panels are working, however I need to access some objects  
in the panel that are defined in the parent class and am not sure how  
to do this.


e.g.

MyProfile.java:

String userId = Profile.getCurrentUserId();

add(new MyInfoPanel(myInfoPanel));


and in MyInfoPanel.java

I need to be able to access userId for example.

This is just a basic example, I need to access certain objects in  
MyInfoPanel.java that are defined in the parent class MyProfile.java




cheers,
Steve








 





-
Michael Sparer
http://talk-on-tech.blogspot.com
  



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Re: wicket panels and parent class

2008-09-29 Thread Steve Swinsburg

I guess I am used to the jsp:include method of including panel type  
objects since I am originally a JSP developer and then anything in the  
panel instantly has access to the variables defined in the surrounding  
parent.


I guess I could pass along a HashMap of data to the Panel when its  
constructed, is this possible/recommended?



cheers,
Steve






On 29 Sep 2008, at 12:58, Thies Edeling wrote:

And then have to cast it to the class of the parent.. which kinda  
kills the independent component based idea of reusable panels.
Why not pass along the userid when constructing? Or fetch it from  
the session.



Michael Sparer wrote:

getParent() ?



Steve Swinsburg-2 wrote:


Hi all,

I'm a new Wicket user and am developing an application making use  
of  Panels. The Panels are working, however I need to access some  
objects  in the panel that are defined in the parent class and am  
not sure how  to do this.


e.g.

MyProfile.java:

String userId = Profile.getCurrentUserId();

add(new MyInfoPanel(myInfoPanel));


and in MyInfoPanel.java

I need to be able to access userId for example.

This is just a basic example, I need to access certain objects in   
MyInfoPanel.java that are defined in the parent class MyProfile.java




cheers,
Steve













-
Michael Sparer
http://talk-on-tech.blogspot.com




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Description: S/MIME cryptographic signature

Re: wicket panels and parent class

2008-09-29 Thread jWeekend


Your Panel is just a Java class, so give it a constructor that takes the
required object(s), or provide a setter if that wouldn't be too late (ie if
the values are required during the panel's construction). Or, take a look at
CompoundPropeprtyModel (maybe together with ComponentPropertyModel too
depending on your naming conventions).

Regards - Cemal
http://www.jWeekend.co.uk http://jWeekend.co.uk 




Steve Swinsburg-2 wrote:
 
 Hi all,
 
 I'm a new Wicket user and am developing an application making use of  
 Panels. The Panels are working, however I need to access some objects  
 in the panel that are defined in the parent class and am not sure how  
 to do this.
 
 e.g.
 
 MyProfile.java:
 
 String userId = Profile.getCurrentUserId();
 
 add(new MyInfoPanel(myInfoPanel));
 
 
 and in MyInfoPanel.java
 
 I need to be able to access userId for example.
 
 This is just a basic example, I need to access certain objects in  
 MyInfoPanel.java that are defined in the parent class MyProfile.java
 
 
 
 cheers,
 Steve
 
 
 
 
 
 
 
 
  
 

-- 
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Re: wicket panels and parent class

2008-09-29 Thread Michael Sparer


possible yes, recommended, no i'd say :-)

if you need specific values from MyPanel then pass it via constructor, if
you need values/attributes on component (e.g. isVisible) level use
getParent()



Steve Swinsburg-2 wrote:
 
 I guess I am used to the jsp:include method of including panel type  
 objects since I am originally a JSP developer and then anything in the  
 panel instantly has access to the variables defined in the surrounding  
 parent.
 
 I guess I could pass along a HashMap of data to the Panel when its  
 constructed, is this possible/recommended?
 
 
 cheers,
 Steve
 
 
 
 
 
 
 On 29 Sep 2008, at 12:58, Thies Edeling wrote:
 
 And then have to cast it to the class of the parent.. which kinda  
 kills the independent component based idea of reusable panels.
 Why not pass along the userid when constructing? Or fetch it from  
 the session.


 Michael Sparer wrote:
 getParent() ?



 Steve Swinsburg-2 wrote:

 Hi all,

 I'm a new Wicket user and am developing an application making use  
 of  Panels. The Panels are working, however I need to access some  
 objects  in the panel that are defined in the parent class and am  
 not sure how  to do this.

 e.g.

 MyProfile.java:

 String userId = Profile.getCurrentUserId();

 add(new MyInfoPanel(myInfoPanel));


 and in MyInfoPanel.java

 I need to be able to access userId for example.

 This is just a basic example, I need to access certain objects in   
 MyInfoPanel.java that are defined in the parent class MyProfile.java



 cheers,
 Steve












 -
 Michael Sparer
 http://talk-on-tech.blogspot.com



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Re: wicket panels and parent class

2008-09-29 Thread Steve Swinsburg


Thanks everyone,

I changed my constructor to accept the object I wanted and passed it  
in from the parent class. It's working now.


cheers,
Steve

---
Steve Swinsburg
Portal Systems Developer
Centre for e-Science
Lancaster University
Lancaster
LA1 4YT

email: [EMAIL PROTECTED]
phone: +44 (0) 1524 594870







On 29 Sep 2008, at 13:08, jWeekend wrote:



Your Panel is just a Java class, so give it a constructor that takes  
the
required object(s), or provide a setter if that wouldn't be too late  
(ie if
the values are required during the panel's construction). Or, take a  
look at

CompoundPropeprtyModel (maybe together with ComponentPropertyModel too
depending on your naming conventions).

Regards - Cemal
http://www.jWeekend.co.uk http://jWeekend.co.uk




Steve Swinsburg-2 wrote:


Hi all,

I'm a new Wicket user and am developing an application making use of
Panels. The Panels are working, however I need to access some objects
in the panel that are defined in the parent class and am not sure how
to do this.

e.g.

MyProfile.java:

String userId = Profile.getCurrentUserId();

add(new MyInfoPanel(myInfoPanel));


and in MyInfoPanel.java

I need to be able to access userId for example.

This is just a basic example, I need to access certain objects in
MyInfoPanel.java that are defined in the parent class MyProfile.java



cheers,
Steve












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smime.p7s
Description: S/MIME cryptographic signature

Re: wicket + spring + jpa/ hibernate = lazy load exception

We don't use JPA at work, but we use OSIV (we're using straight
hibernate).  Anyway, for the JPA configuration, you can look at:

https://wicketopia.svn.sourceforge.net/svnroot/wicketopia/trunk/jpa-archetype/src/main/resources/archetype-resources/src/main/webapp/WEB-INF/web.xml


On Mon, Sep 29, 2008 at 7:57 AM, Korbinian Bachl - privat
[EMAIL PROTECTED] wrote:
 really? - I tried it but...

 would you please be so nice and post the part of the web.xml where it is
 mapped and the corresponding part of the spring-application.xml ?

 what wicket version are you on? what runtime (Tomcat 6?)?

 Best,

 Korbinian


 James Carman schrieb:

 On Mon, Sep 29, 2008 at 7:14 AM, Korbinian Bachl - privat
 [EMAIL PROTECTED] wrote:

 However, the OpenSessionInViewFilter will not work with wicket, even if
 mapped to /* in the web.xml

 Huh?  We use it and it works just fine.  By the way, have you tried
 OpenEntityManagerInViewFilter if you're using JPA?

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Re: wicket panels and parent class

Just be careful.  If the object reference in the parent is retrieved
from a LoadableDetachableModel, then your panel and its parent can get
out of sync.

On Mon, Sep 29, 2008 at 8:16 AM, Steve Swinsburg
[EMAIL PROTECTED] wrote:
 Thanks everyone,

 I changed my constructor to accept the object I wanted and passed it in from
 the parent class. It's working now.

 cheers,
 Steve

 ---
 Steve Swinsburg
 Portal Systems Developer
 Centre for e-Science
 Lancaster University
 Lancaster
 LA1 4YT

 email: [EMAIL PROTECTED]
 phone: +44 (0) 1524 594870







 On 29 Sep 2008, at 13:08, jWeekend wrote:


 Your Panel is just a Java class, so give it a constructor that takes the
 required object(s), or provide a setter if that wouldn't be too late (ie
 if
 the values are required during the panel's construction). Or, take a look
 at
 CompoundPropeprtyModel (maybe together with ComponentPropertyModel too
 depending on your naming conventions).

 Regards - Cemal
 http://www.jWeekend.co.uk http://jWeekend.co.uk




 Steve Swinsburg-2 wrote:

 Hi all,

 I'm a new Wicket user and am developing an application making use of
 Panels. The Panels are working, however I need to access some objects
 in the panel that are defined in the parent class and am not sure how
 to do this.

 e.g.

 MyProfile.java:

 String userId = Profile.getCurrentUserId();

 add(new MyInfoPanel(myInfoPanel));


 and in MyInfoPanel.java

 I need to be able to access userId for example.

 This is just a basic example, I need to access certain objects in
 MyInfoPanel.java that are defined in the parent class MyProfile.java



 cheers,
 Steve











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The Wicket difference ...?

2008-09-29 Thread Ashley Aitken



Howdy All,

Just trying to explain to some colleagues how some of Wicket works  
(differently than most other Web frameworks), so please correct me if  
I am wrong.


From my understanding Wicket differs from most other Web frameworks  
in that it doesn't manage the creation of the object graphs  
representing Web pages (it's done simply through the Java new operator  
and composition of objects by the constructors within that super  
hierarchy).


The positive side of this is that it removes the need for Web page  
factories that take strings as arguments to construct the object  
graphs, and thus are not easily refactored within Java IDEs.  The  
negative side of this is that page caching now needs to be done by  
saving the object graph in some form, e.g. directly in the session or  
serialising to a file.


The more common alternative, as mentioned above, is to have some sort  
of factory that manages the construction of the object graphs  
representing Web pages.  As the framework can do this, as needed, it  
doesn't need to cache the entire object graph, it can just save the  
data needed to refill within a Web page.


Of course, this is probably just one difference and may not be the  
most important aspect of Wicket.  It is, however, I believe why Wicket  
needs to have detachable models, so that the large models don't also  
need to be saved.


Apologies in advance for any mistakes or poor communication.  Any  
comments or clarifications?


Cheers,
Ashley.

--
Ashley Aitken
Perth, Western Australia
mrhatken at mac dot com
Skype Name: MrHatken (GMT + 8 Hours!)







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Re: Travel Assistance to ApacheCon US 2008

2008-09-29 Thread Martijn Dashorst

You have until Friday to apply for this support. This is open for
anyone, not just committers! If you have an interest in Apache Wicket
and/or Apache ${foo} and are unable to attend because of monetary
constraints, and you fit the criteria, don't hesitate to apply!

Martijn

On Thu, Sep 25, 2008 at 4:01 PM, Martijn Dashorst [EMAIL PROTECTED] wrote:
 The Travel Assistance Committee is taking in applications for those wanting
 to attend ApacheCon US 2008 between the 3rd and 7th November 2008 in New
 Orleans.

 The Travel Assistance Committee is looking for people who would like to be
 able to attend ApacheCon US 2008 who need some financial support in order to
 get there. There are VERY few places available and the criteria is high,
 that aside applications are open to all open source developers who feel that
 their attendance would benefit themselves, their project(s), the ASF and
 open source in general.

 Financial assistance is available for flights, accomodation and entrance
 fees either in full or in part, depending on circumstances. It is intended
 that all our ApacheCon events are covered, so it may be prudent for those in
 Europe and or Asia to wait until an event closer to them comes up - you are
 all welcome to apply for ApacheCon US of course, but there must be
 compelling reasons for you to attend an event further away that your home
 location for your application to be considered above those closer to the
 event location.

 More information can be found on the main Apache website at
 http://www.apache.org/travel/index.html - where you will also find a link to
 the application form and details for submitting.

 Time is very tight for this event, so applications are open now and will end
 on the 2nd October 2008 - to give enough time for travel arrangements to be
 made.

 Good luck to all those that will apply.

 Regards,

 The Travel Assistance Committee




-- 
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Apache Wicket 1.3.4 is released
Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.

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OnChangeAjaxBehavior in ListView

2008-09-29 Thread Anders Peterson


Hi,

I'm using OnChangeAjaxBehavior with a TextField. The TextField is in a 
table cell that is repeated using a ListView. When I change the value of 
one of the TextFields more than one of the underlying models get updated 
- the one that was supposed to be updated and all following in the list. 
If I modify the first TextField then all underlying models get the same 
value. If I modify the second then all except the first...


Anyone else seen this?

Wicket 1.4M3

/Anders

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Re: wicket panels and parent class

2008-09-29 Thread Phil Grimm

It may not be a best practice, but if MyInfoPanel does not need to be
reusable you can make it an inner class of MyProfile. Then userId can be
accessed directly.

Phil

On Mon, Sep 29, 2008 at 6:45 AM, Steve Swinsburg 
[EMAIL PROTECTED] wrote:

 Hi all,
 I'm a new Wicket user and am developing an application making use of
 Panels. The Panels are working, however I need to access some objects in the
 panel that are defined in the parent class and am not sure how to do this.

 e.g.

 MyProfile.java:

 String userId = Profile.getCurrentUserId();

 add(new MyInfoPanel(myInfoPanel));


 and in MyInfoPanel.java

 I need to be able to access userId for example.

 This is just a basic example, I need to access certain objects in
 MyInfoPanel.java that are defined in the parent class MyProfile.java



 cheers,
 Steve










-- 
Phil Grimm
Mobile: (858) 335-3426
Skype: philgrimm336

Re: Breadcrumb + previous button

2008-09-29 Thread Kmus


This is what I did to solve the issue:

In Panel C class:
// Return button.
List crumbs = getBreadCrumbModel().allBreadCrumbParticipants();
IBreadCrumbParticipant p = null;
for (Object obj : crumbs) {
p = (IBreadCrumbParticipant) obj;
if (p instanceof PanelB) {
break;
}
}
...
final IBreadCrumbParticipant participant = p;
BreadCrumbLink returnBtn = new BreadCrumbLink(returnBtn,
getBreadCrumbModel()) {

@Override
protected IBreadCrumbParticipant getParticipant(String
componentId) {
return participant;
}
};
form.add(returnBtn);

Not sure if it is the best solution, but it works...

Thanks,
Daniel


Kmus wrote:
 
 Hi,
 
 I'm working in an application that is using the Breadcrumb component and
 everything works as expected.
 
 Currently I'm trying to add a previous/return button in some of my
 modules to give the user a friendlier environment, but I don't know how to
 send the user to the previous panel and remove the current participant
 from the bread crumb bar.
 
 Right now when the user press my Previous button the breadcrumb bar
 prints:
 Panel A / Panel B / Panel C / Panel B
 
 What I want is:
 Panel A / Panel B
 
 I don't want to use the javascript:history.back(1) code because it doesn't
 feel right... 
 
 Could someone help me with this?
 
 Thanks,
 Daniel
 

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ListView - modify css for some column

2008-09-29 Thread radovan


Hallo community, my code looks like this:

listView = new ListViewMyItem(collectionIterator,
listOfMyItems) {

@Override
protected void populateItem(ListItemMyItem item) {
MyItem myItem = (MyItem) item.getDefaultModelObject();
String name = myItem.getName();
String value = myItem.getValue();
item.add(new Label(name, name));
item.add(new Label(value, value));
}
};

table
trthName/ththValue/th/tr
tr wicket:id=collectionIterator
td/td
td/td
/tr
/table

and I need to change css class for td element in table.  

If I add this:

item.add(new AttributeAppender(class, new
ModelString(newCssClass), ));

It adds this css class for all td tags. By oter words for whole row. But I
need modify only some td, only some column. Could you give me some advice?
Thanks a lot.

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Re: ListView - modify css for some column

2008-09-29 Thread Thies Edeling


radovan wrote:

Hallo community, my code looks like this:

listView = new ListViewMyItem(collectionIterator,
listOfMyItems) {

@Override
protected void populateItem(ListItemMyItem item) {
MyItem myItem = (MyItem) item.getDefaultModelObject();
String name = myItem.getName();
String value = myItem.getValue();
item.add(new Label(name, name));
item.add(new Label(value, value));
}
};

table
trthName/ththValue/th/tr
tr wicket:id=collectionIterator
td/td
td/td
/tr
/table

and I need to change css class for td element in table.  


If I add this:

item.add(new AttributeAppender(class, new
ModelString(newCssClass), ));

It adds this css class for all td tags. By oter words for whole row. But I
need modify only some td, only some column. Could you give me some advice?
Thanks a lot

use an if statement to only add the attribute to that specific td?

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Re: wicket + spring + jpa/ hibernate = lazy load exception


Hmm,

I copied it to web.xml, but result is:

2008-09-29 18:07:24,125 ERROR org.hibernate.LazyInitializationException 
- failed to lazily initialize a collection of role: 
de.xxx....xxx., no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a 
collection of role: de.xxx....xxx., no session or 
session was closed
	at 
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
	at 
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
	at 
org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97)

at org.hibernate.collection.PersistentSet.size(PersistentSet.java:139)
..

web.xml looks:

?xml version=1.0 encoding=UTF-8?
web-app xmlns=http://java.sun.com/xml/ns/j2ee;
 xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
 xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;

 version=2.4

display-namewhiskas-application/display-name

listener 
listener-classorg.springframework.web.context.ContextLoaderListener/listener-class

/listener

listener 
listener-classorg.springframework.web.context.request.RequestContextListener/listener-class

/listener

!-- ##
  Filters
   ## --

!-- TEST --
filter
filter-nameOpenEntityManagerInViewFilter/filter-name 


filter-classorg.springframework.orm.jpa.support.OpenEntityManagerInViewFilter/filter-class
/filter


!-- Wicket Application --
filter
filter-nameWhiskasApplication/filter-name 
filter-classorg.apache.wicket.protocol.http.WicketFilter/filter-class

init-param
param-nameapplicationFactoryClassName/param-name 


param-valueorg.apache.wicket.spring.SpringWebApplicationFactory/param-value
/init-param

init-param
param-nameconfiguration/param-name
param-valuedeployment/param-value
/init-param
/filter

!-- ##
Filter Mappings
 ## --

filter-mapping
filter-nameOpenEntityManagerInViewFilter/filter-name
url-pattern/*/url-pattern
/filter-mapping


filter-mapping
filter-nameWhiskasApplication/filter-name
url-pattern/*/url-pattern
/filter-mapping


/web-app

so, what can be wrong there? - web.xml seems 100% fine to me. Is there 
anything that has to be put into the application.xml?


Best,

Korbinian


James Carman schrieb:

We don't use JPA at work, but we use OSIV (we're using straight
hibernate).  Anyway, for the JPA configuration, you can look at:

https://wicketopia.svn.sourceforge.net/svnroot/wicketopia/trunk/jpa-archetype/src/main/resources/archetype-resources/src/main/webapp/WEB-INF/web.xml


On Mon, Sep 29, 2008 at 7:57 AM, Korbinian Bachl - privat
[EMAIL PROTECTED] wrote:

really? - I tried it but...

would you please be so nice and post the part of the web.xml where it is
mapped and the corresponding part of the spring-application.xml ?

what wicket version are you on? what runtime (Tomcat 6?)?

Best,

Korbinian


James Carman schrieb:

On Mon, Sep 29, 2008 at 7:14 AM, Korbinian Bachl - privat
[EMAIL PROTECTED] wrote:


However, the OpenSessionInViewFilter will not work with wicket, even if
mapped to /* in the web.xml

Huh?  We use it and it works just fine.  By the way, have you tried
OpenEntityManagerInViewFilter if you're using JPA?

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Re: ListView - modify css for some column

2008-09-29 Thread radovan




Thies Edeling wrote:
 
 radovan wrote:
 Hallo community, my code looks like this:

 listView = new ListViewMyItem(collectionIterator,
 listOfMyItems) {

 @Override
 protected void populateItem(ListItemMyItem item) {
 MyItem myItem = (MyItem) item.getDefaultModelObject();
 String name = myItem.getName();
  String value = myItem.getValue();
 item.add(new Label(name, name));
 item.add(new Label(value, value));
 }
 };

  table
  trthName/ththValue/th/tr
  tr wicket:id=collectionIterator
  td/td
  td/td
  /tr
  /table

 and I need to change css class for td element in table.  

 If I add this:

 item.add(new AttributeAppender(class, new
 ModelString(newCssClass), ));

 It adds this css class for all td tags. By oter words for whole row.
 But I
 need modify only some td, only some column. Could you give me some
 advice?
 Thanks a lot
 use an if statement to only add the attribute to that specific td?
 
 -
 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 
 
 


ok, but listItem is for whole row (for tr), how I get td from listItem?
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Re: The Wicket difference ...?

2008-09-29 Thread jWeekend


Ashley,

Take a look at chapter 1 of Wicket In Action (free download at
http://www.manning.com/dashorst/).

Regards - Cemal
http://www.jWeekend.co.uk  http://jWeekend.co.uk  


Ashley Aitken wrote:
 
 
 Howdy All,
 
 Just trying to explain to some colleagues how some of Wicket works  
 (differently than most other Web frameworks), so please correct me if  
 I am wrong.
 
  From my understanding Wicket differs from most other Web frameworks  
 in that it doesn't manage the creation of the object graphs  
 representing Web pages (it's done simply through the Java new operator  
 and composition of objects by the constructors within that super  
 hierarchy).
 
 The positive side of this is that it removes the need for Web page  
 factories that take strings as arguments to construct the object  
 graphs, and thus are not easily refactored within Java IDEs.  The  
 negative side of this is that page caching now needs to be done by  
 saving the object graph in some form, e.g. directly in the session or  
 serialising to a file.
 
 The more common alternative, as mentioned above, is to have some sort  
 of factory that manages the construction of the object graphs  
 representing Web pages.  As the framework can do this, as needed, it  
 doesn't need to cache the entire object graph, it can just save the  
 data needed to refill within a Web page.
 
 Of course, this is probably just one difference and may not be the  
 most important aspect of Wicket.  It is, however, I believe why Wicket  
 needs to have detachable models, so that the large models don't also  
 need to be saved.
 
 Apologies in advance for any mistakes or poor communication.  Any  
 comments or clarifications?
 
 Cheers,
 Ashley.
 
 --
 Ashley Aitken
 Perth, Western Australia
 mrhatken at mac dot com
 Skype Name: MrHatken (GMT + 8 Hours!)
 
 
 
 
 
 
 
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 For additional commands, e-mail: [EMAIL PROTECTED]
 
 
 

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Re: ListView - modify css for some column

you should use DataTable instead of ListView for that; there you can 
easily manipulate by overriding the getCSS() function of the columns.


Best,

Korbinian

radovan schrieb:

Hallo community, my code looks like this:

listView = new ListViewMyItem(collectionIterator,
listOfMyItems) {

@Override
protected void populateItem(ListItemMyItem item) {
MyItem myItem = (MyItem) item.getDefaultModelObject();
String name = myItem.getName();
String value = myItem.getValue();
item.add(new Label(name, name));
item.add(new Label(value, value));
}
};

table
trthName/ththValue/th/tr
tr wicket:id=collectionIterator
td/td
td/td
/tr
/table

and I need to change css class for td element in table.  


If I add this:

item.add(new AttributeAppender(class, new
ModelString(newCssClass), ));

It adds this css class for all td tags. By oter words for whole row. But I
need modify only some td, only some column. Could you give me some advice?
Thanks a lot.



-
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Re: wicket + spring + jpa/ hibernate = lazy load exception

Would you be able to create a quickstart that exhibits this behavior?
If you want, you can use the JPA archetype in wicketopia (the code I
referenced) to set everything up for you automatically.

On Mon, Sep 29, 2008 at 12:21 PM, Korbinian Bachl - privat
[EMAIL PROTECTED] wrote:
 Hmm,

 I copied it to web.xml, but result is:

 2008-09-29 18:07:24,125 ERROR org.hibernate.LazyInitializationException -
 failed to lazily initialize a collection of role:
 de.xxx....xxx., no session or session was closed
 org.hibernate.LazyInitializationException: failed to lazily initialize a
 collection of role: de.xxx....xxx., no session or session
 was closed
at
 org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
at
 org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
at
 org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97)
at
 org.hibernate.collection.PersistentSet.size(PersistentSet.java:139)
 ..

 web.xml looks:

 ?xml version=1.0 encoding=UTF-8?
 web-app xmlns=http://java.sun.com/xml/ns/j2ee;
 xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
 xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
 version=2.4

display-namewhiskas-application/display-name

listener
 listener-classorg.springframework.web.context.ContextLoaderListener/listener-class
/listener

listener
 listener-classorg.springframework.web.context.request.RequestContextListener/listener-class
/listener

!-- ##
  Filters
   ## --

!-- TEST --
filter
filter-nameOpenEntityManagerInViewFilter/filter-name
 filter-classorg.springframework.orm.jpa.support.OpenEntityManagerInViewFilter/filter-class
/filter


!-- Wicket Application --
filter
filter-nameWhiskasApplication/filter-name
 filter-classorg.apache.wicket.protocol.http.WicketFilter/filter-class
init-param
param-nameapplicationFactoryClassName/param-name
 param-valueorg.apache.wicket.spring.SpringWebApplicationFactory/param-value
/init-param

init-param
param-nameconfiguration/param-name
param-valuedeployment/param-value
/init-param
/filter

!-- ##
Filter Mappings
 ## --

filter-mapping
filter-nameOpenEntityManagerInViewFilter/filter-name
url-pattern/*/url-pattern
/filter-mapping


filter-mapping
filter-nameWhiskasApplication/filter-name
url-pattern/*/url-pattern
/filter-mapping


 /web-app

 so, what can be wrong there? - web.xml seems 100% fine to me. Is there
 anything that has to be put into the application.xml?

 Best,

 Korbinian


 James Carman schrieb:

 We don't use JPA at work, but we use OSIV (we're using straight
 hibernate).  Anyway, for the JPA configuration, you can look at:


 https://wicketopia.svn.sourceforge.net/svnroot/wicketopia/trunk/jpa-archetype/src/main/resources/archetype-resources/src/main/webapp/WEB-INF/web.xml


 On Mon, Sep 29, 2008 at 7:57 AM, Korbinian Bachl - privat
 [EMAIL PROTECTED] wrote:

 really? - I tried it but...

 would you please be so nice and post the part of the web.xml where it is
 mapped and the corresponding part of the spring-application.xml ?

 what wicket version are you on? what runtime (Tomcat 6?)?

 Best,

 Korbinian


 James Carman schrieb:

 On Mon, Sep 29, 2008 at 7:14 AM, Korbinian Bachl - privat
 [EMAIL PROTECTED] wrote:

 However, the OpenSessionInViewFilter will not work with wicket, even if
 mapped to /* in the web.xml

 Huh?  We use it and it works just fine.  By the way, have you tried
 OpenEntityManagerInViewFilter if you're using JPA?

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Re: ListView - modify css for some column

2008-09-29 Thread Igor Vaynberg

you populate all components inside the listview yourself, so just
attach one to the td

-igor

On Mon, Sep 29, 2008 at 9:23 AM, radovan [EMAIL PROTECTED] wrote:



 Thies Edeling wrote:

 radovan wrote:
 Hallo community, my code looks like this:

 listView = new ListViewMyItem(collectionIterator,
 listOfMyItems) {

 @Override
 protected void populateItem(ListItemMyItem item) {
 MyItem myItem = (MyItem) item.getDefaultModelObject();
 String name = myItem.getName();
  String value = myItem.getValue();
 item.add(new Label(name, name));
 item.add(new Label(value, value));
 }
 };

  table
  trthName/ththValue/th/tr
  tr wicket:id=collectionIterator
  td/td
  td/td
  /tr
  /table

 and I need to change css class for td element in table.

 If I add this:

 item.add(new AttributeAppender(class, new
 ModelString(newCssClass), ));

 It adds this css class for all td tags. By oter words for whole row.
 But I
 need modify only some td, only some column. Could you give me some
 advice?
 Thanks a lot
 use an if statement to only add the attribute to that specific td?

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 ok, but listItem is for whole row (for tr), how I get td from listItem?
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Re: The Wicket difference ...?

Hi,

On Mon, Sep 29, 2008 at 4:13 PM, Ashley Aitken [EMAIL PROTECTED] wrote:

 Howdy All,

 Just trying to explain to some colleagues how some of Wicket works
 (differently than most other Web frameworks), so please correct me if I am
 wrong.

 From my understanding Wicket differs from most other Web frameworks in that
 it doesn't manage the creation of the object graphs representing Web pages
 (it's done simply through the Java new operator and composition of objects
 by the constructors within that super hierarchy).

correct


 The positive side of this is that it removes the need for Web page factories
 that take strings as arguments to construct the object graphs, and thus are
 not easily refactored within Java IDEs.  The negative side of this is that
 page caching now needs to be done by saving the object graph in some form,
 e.g. directly in the session or serialising to a file.

also correct

 The more common alternative, as mentioned above, is to have some sort of
 factory that manages the construction of the object graphs representing Web
 pages.  As the framework can do this, as needed, it doesn't need to cache
 the entire object graph, it can just save the data needed to refill within a
 Web page.

also correct. however this gets more interesting when you want that
object graph to be dynamic. Frameworks that use the approach you've
mentioned (such as tapestry) are usually having static component tree
which can be a major flexibility limitation.


 Of course, this is probably just one difference and may not be the most
 important aspect of Wicket.  It is, however, I believe why Wicket needs to
 have detachable models, so that the large models don't also need to be
 saved.

correct

-Matej


 Apologies in advance for any mistakes or poor communication.  Any comments
 or clarifications?

 Cheers,
 Ashley.

 --
 Ashley Aitken
 Perth, Western Australia
 mrhatken at mac dot com
 Skype Name: MrHatken (GMT + 8 Hours!)







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Re: how to navigate from edit mode to view mode

2008-09-29 Thread Thijs Vonk

You'll have to be more specific. What kind of problems. What works, what 
doesn't etc.



Singh Mukesh wrote:

Hi

I have created a bookmark portlet using wicket. And the bookmark portlet
includes two portlet- mode i.e. view and edit. I have deployed the basic
portlet on sun portal. I have a problem with the navigation form edit
mode to view mode.

Do you have any good suggestion how to solve this problem?

Thanks in advance

Thanks and Regards,

MUKESH SINGH
CAPGEMINI Consultant
Arrive AS
T (+47) 46 47 90 16
E-post: [EMAIL PROTECTED]
http://servicedesk.arrive.no



   



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Need to add tool tip for hyper link

2008-09-29 Thread newbie_to_wicket


hi ,

i've to add a tool tip for hyper link,
if any of you come across this thing,
please suggest me or give me the sample code .
thanks
J
-- 
View this message in context: 
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Inmethod Grid with wicket 1.3

2008-09-29 Thread Jim Pinkham

I'd like to use inmethod grid in my charity auction project.

I've got a slightly modified version of one of the grid-examples using
DataGrid like so:

DataGrid grid = new DefaultDataGrid(grid,
AuctionApplication.get().getDao().getItems(getYear()),  
 // returns
IDataSource
Arrays.asList(new IGridColumn[] {
new PropertyColumn(new ResourceModel(id), id),
new PropertyColumn(new ResourceModel(name), name),
// I'll try editable columns here once I get
basic display working...
new SubmitCancelColumn(esd, new Model(Edit)),
}));
add(new Form(form).add(grid));

I'm getting this error at runtime I don't understand:

NoSuchMethodError: org.apache.wicket.MetaDataKey: method init()V not found
at com.inmethod.grid.common.AbstractGrid$4.init(AbstractGrid.java:908)
at com.inmethod.grid.common.AbstractGrid.clinit(AbstractGrid.java:907)
at org.firstuucolumbus.CatalogPage.init(CatalogPage.java:43)

Unfortunately, I'm a total Maven newbie, so I'm guessing something
must be amiss in pom.xml (below)

or the way I'm using it:  mvn clean install eclipse:clean eclipse:eclipse

(Then I usually run Start from Eclipse)

Would someone wiser in the ways of inmethod and/or Maven care to give
me a hand here?

Any help much appreciated.

Thanks,
-- Jim.

project xmlns=http://maven.apache.org/POM/4.0.0;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd;

modelVersion4.0.0/modelVersion
groupIdorg.firstuucolumbus/groupId
artifactIdauction/artifactId
packagingwar/packaging
version1.0-SNAPSHOT/version
!-- TODO project name  --
nameauction/name
description/description

licenses
license
nameThe Apache Software License, Version 2.0/name

urlhttp://www.apache.org/licenses/LICENSE-2.0.txt/url
distributionrepo/distribution
/license
/licenses

dependencies
!--  WICKET DEPENDENCIES --
dependency
groupIdorg.apache.wicket/groupId
artifactIdwicket/artifactId
version${wicket.version}/version
/dependency   
dependency
groupIdorg.apache.wicket/groupId
artifactIdwicket-extensions/artifactId
version${wicket.version}/version
/dependency

!-- LOGGING DEPENDENCIES - LOG4J --
dependency
groupIdorg.slf4j/groupId
artifactIdslf4j-log4j12/artifactId
version${slf4j.version}/version
/dependency
dependency
groupIdlog4j/groupId
artifactIdlog4j/artifactId
version${log4j.version}/version
/dependency

!--  JUNIT DEPENDENCY FOR TESTING --
 dependency
 groupIdjunit/groupId
 artifactIdjunit/artifactId
 version3.8.2/version
 scopetest/scope
 /dependency

!--  JETTY DEPENDENCIES FOR TESTING  --
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty-util/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty-management/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty-plus/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty-naming/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency

Re: Need to add tool tip for hyper link

2008-09-29 Thread Martijn Dashorst

a href=# title=Here's my tooltip tiplink/a

On Mon, Sep 29, 2008 at 9:59 PM, newbie_to_wicket [EMAIL PROTECTED] wrote:

 hi ,

 i've to add a tool tip for hyper link,
 if any of you come across this thing,
 please suggest me or give me the sample code .
 thanks
 J
 --
 View this message in context: 
 http://www.nabble.com/Need-to-add-tool-tip-for-hyper-link-tp19730615p19730615.html
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Apache Wicket 1.3.4 is released
Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.

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Re: Need to add tool tip for hyper link

2008-09-29 Thread Mathias P.W Nilsson


http://wicketstuff.org/confluence/display/STUFFWIKI/wicketstuff-minis-prototip
Prototip 
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Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

I guess I didn't quite get the file upload example in the first place.
Uploading via iframe is supported by jQuery's form plugin, which is
one of the best plugins we have. We plan to add it, together with
other related plugins, to jQuery UI forms (or something like that).

About selectors: jQuery promotes progressive enhancement a lot, and
selectors are essential for that. One example for that is that we
avoid inline onclick=.. and similar stuff. I'm not sure how that
would be handled by Wicket, and if using jQuery would open ways to
handle things differently.

I can't give you too many details on replaceOuterHtml, though that
sounds like I can easily get more info on. Currently jQuery does a lot
of work cleaning html input that is appended into the DOM, which seems
to be basically the same usecase here. Also executing script-tags is
something we cover.
Could you give me an example how exactly replaceOuterHTML is currently used?

About the Microsoft argument: True, from a technical perspective that
doesn't matter. But its an important political aspect: I already read
a few comments from people that couldn't use jQuery due to a general
no open-source policy - but now that Microsoft, that had exactly
that policy, is changed theirs, it could enable others to adopt it,
too.

Jörn

PS: I'm currently sitting on a panel with PPK and guys from Prototype,
Dojo, YUI and jQuery. One question was: What library would you
recommend but your own?. Two of the three non-jQuery guys recommened
jQuery

On Mon, Sep 29, 2008 at 1:41 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 On Mon, Sep 29, 2008 at 1:18 PM, Jörn Zaefferer
 [EMAIL PROTECTED] wrote:
 It would be a big plus for me if Wicket would adopt jQuery. Drupal
 does that, and anyone writing a Drupal module can rely on the fact
 that jQuery is available. Same for Wordpress, where plugin authors can
 rely on the availability of jQuery. And not having to load more than
 one library, internal or not, is a good thing performance-wise.

 In response to your examples:

 Unbinding only particular event handlers without having a reference to
 the handler function can be achieved with namespaces:
 $(element).bind(click.somethingUnique, handleClick);
 $(element).unbind(click.somethingUnique);

 But that's not quite the same. This requires me to use generate and
 keep a unique string. Anyway, this is a cosmetic issue only.


 That way you don't have to keep a reference at all, while its possible
 to group multiple events into one namespace. This is now heavily used
 by most jQuery UI components when destroyed, to clean up their own
 event handlers without affecting any other.

 Multiple file upload we'll eventually have as part of jQuery UI. That
 would then be the same level of official and supported component that
 YUI provides. The descision to add new components is partly
 community-driven. So if you think multipart ajax uploads should be
 added, just ask for it.
 This is not about multiple file upload. We already have such
 component in Wicket. This is about support for input type=file on
 ajax uploads - just use hidden frame instead of xml http request.


 About selectors: John Resig is currently working on a new selector
 engine that likely outperformances any other selector engine available
 so far. Its developed as a standalone library, so its likely that
 MochKit and Prototype will use it, too.
 That sure is nice, but the selectors are not used in Wicket core at all.

 jQuery 1.3. will also provide heavy performance improvements for DOM
 manipulations, which I'm very exited about as that is usually where
 most time is spent. Its easy to avoid running certain selectors too
 often, but its hard to optimize DOM manipulation in clientcode.

 While we at this, I'd like to ask. Significant part of Wicket ajax is
 Wicket.replaceOuterHtml method. This was really a major pain to
 implement and stabilize. What it does is basically a replaceOuterHTML
 call for all browser but it works in totally cross browser consistent
 way. I.e. it allows table rows, cells etc replaced in internet
 explorer and it also executes embedded script tags on browsers that
 would normally not do that (basically all except for Firefox). So my
 question is, just out of curiosity, is there/will there be similar
 functionality provided by jQuery?

 Anyway, thanks for taking the time to discuss this again.

 Sure. Keep in mind that the decision is not carved to stone. I'm open
 to argument, but I'm really interested in technical aspect. Having
 Microsoft will use jQuery is not really a valid argument to me :)

 -Matej


 Jörn

 On Mon, Sep 29, 2008 at 12:54 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 Are you really that surprised that Microsoft is not shipping YUI after
 the failed attempts to take over Yahoo? :)

 Seriously, there are technical reasons why I considered to use YUI,
 not political. Just because some companies use jQuery it doesn't mean
 Wicket should use it. Say most of the companies use JSF, does

Re: Inmethod Grid with wicket 1.3

I don't think the grid snapshots in maven are recent enough. You
should fetch it from svn and build it yourself if you want to use it.
Also keep in mind that grid version for 1.3 is in the 1.3 branch of
wicket stuff, not the trunk:

http://wicket-stuff.svn.sourceforge.net/svnroot/wicket-stuff/branches/wicket-1.3.x/inmethod-grid/

-Matej

On Mon, Sep 29, 2008 at 10:21 PM, Jim Pinkham [EMAIL PROTECTED] wrote:
 I'd like to use inmethod grid in my charity auction project.

 I've got a slightly modified version of one of the grid-examples using
 DataGrid like so:

DataGrid grid = new DefaultDataGrid(grid,
AuctionApplication.get().getDao().getItems(getYear()), 
   // returns
 IDataSource
Arrays.asList(new IGridColumn[] {
new PropertyColumn(new ResourceModel(id), id),
new PropertyColumn(new ResourceModel(name), name),
// I'll try editable columns here once I get
 basic display working...
new SubmitCancelColumn(esd, new Model(Edit)),
}));
add(new Form(form).add(grid));

 I'm getting this error at runtime I don't understand:

 NoSuchMethodError: org.apache.wicket.MetaDataKey: method init()V not found
at com.inmethod.grid.common.AbstractGrid$4.init(AbstractGrid.java:908)
at com.inmethod.grid.common.AbstractGrid.clinit(AbstractGrid.java:907)
at org.firstuucolumbus.CatalogPage.init(CatalogPage.java:43)

 Unfortunately, I'm a total Maven newbie, so I'm guessing something
 must be amiss in pom.xml (below)

 or the way I'm using it:  mvn clean install eclipse:clean eclipse:eclipse

 (Then I usually run Start from Eclipse)

 Would someone wiser in the ways of inmethod and/or Maven care to give
 me a hand here?

 Any help much appreciated.

 Thanks,
 -- Jim.

 project xmlns=http://maven.apache.org/POM/4.0.0;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://maven.apache.org/POM/4.0.0
 http://maven.apache.org/maven-v4_0_0.xsd;

modelVersion4.0.0/modelVersion
groupIdorg.firstuucolumbus/groupId
artifactIdauction/artifactId
packagingwar/packaging
version1.0-SNAPSHOT/version
!-- TODO project name  --
nameauction/name
description/description

licenses
license
nameThe Apache Software License, Version 2.0/name

 urlhttp://www.apache.org/licenses/LICENSE-2.0.txt/url
distributionrepo/distribution
/license
/licenses

dependencies
!--  WICKET DEPENDENCIES --
dependency
groupIdorg.apache.wicket/groupId
artifactIdwicket/artifactId
version${wicket.version}/version
/dependency
dependency
groupIdorg.apache.wicket/groupId
artifactIdwicket-extensions/artifactId
version${wicket.version}/version
/dependency

!-- LOGGING DEPENDENCIES - LOG4J --
dependency
groupIdorg.slf4j/groupId
artifactIdslf4j-log4j12/artifactId
version${slf4j.version}/version
/dependency
dependency
groupIdlog4j/groupId
artifactIdlog4j/artifactId
version${log4j.version}/version
/dependency

!--  JUNIT DEPENDENCY FOR TESTING --
 dependency
 groupIdjunit/groupId
 artifactIdjunit/artifactId
 version3.8.2/version
 scopetest/scope
 /dependency

!--  JETTY DEPENDENCIES FOR TESTING  --
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty-util/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty-management/artifactId
version${jetty.version}/version
scopeprovided/scope
/dependency
dependency
groupIdorg.mortbay.jetty/groupId
artifactIdjetty-plus/artifactId

Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

On Mon, Sep 29, 2008 at 11:13 PM, Jörn Zaefferer
[EMAIL PROTECTED] wrote:
 I guess I didn't quite get the file upload example in the first place.
 Uploading via iframe is supported by jQuery's form plugin, which is
 one of the best plugins we have. We plan to add it, together with
 other related plugins, to jQuery UI forms (or something like that).
Well, that's what I'm talking about. It's a separate plugin. I don't
know how good the plugin is. How actively it is mantained. Can I rely
on it? Those are the questions I do not need to ask when dealing with
YUI.

 About selectors: jQuery promotes progressive enhancement a lot, and
 selectors are essential for that. One example for that is that we
 avoid inline onclick=.. and similar stuff. I'm not sure how that
 would be handled by Wicket, and if using jQuery would open ways to
 handle things differently.

In wicket 1.5 there won't be any inline handlers in the markup. All
events will be attached separately.


 I can't give you too many details on replaceOuterHtml, though that
 sounds like I can easily get more info on. Currently jQuery does a lot
 of work cleaning html input that is appended into the DOM, which seems
 to be basically the same usecase here. Also executing script-tags is
 something we cover.
 Could you give me an example how exactly replaceOuterHTML is currently used?

It is used every time Ajax request replaces component on page.
Wicket.replaceOuterHTML(element, newmarkup);
It replaces the element (the tag itself) with the new markup.
But it takes care of some things such as when the element is a table
row or cell, or if there are script tag embedded in the markup.


 About the Microsoft argument: True, from a technical perspective that
 doesn't matter. But its an important political aspect: I already read
 a few comments from people that couldn't use jQuery due to a general
 no open-source policy - but now that Microsoft, that had exactly
 that policy, is changed theirs, it could enable others to adopt it,
 too.

Well, I consider YAHOO to be a player that is major enough when the
political questions arise.
As for Microsoft and it's no open-source policy, well, until vista
they have been using BSD network stack and had no problems with that
as far as i can tell :)

-Matej


 Jörn

 PS: I'm currently sitting on a panel with PPK and guys from Prototype,
 Dojo, YUI and jQuery. One question was: What library would you
 recommend but your own?. Two of the three non-jQuery guys recommened
 jQuery

 On Mon, Sep 29, 2008 at 1:41 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 On Mon, Sep 29, 2008 at 1:18 PM, Jörn Zaefferer
 [EMAIL PROTECTED] wrote:
 It would be a big plus for me if Wicket would adopt jQuery. Drupal
 does that, and anyone writing a Drupal module can rely on the fact
 that jQuery is available. Same for Wordpress, where plugin authors can
 rely on the availability of jQuery. And not having to load more than
 one library, internal or not, is a good thing performance-wise.

 In response to your examples:

 Unbinding only particular event handlers without having a reference to
 the handler function can be achieved with namespaces:
 $(element).bind(click.somethingUnique, handleClick);
 $(element).unbind(click.somethingUnique);

 But that's not quite the same. This requires me to use generate and
 keep a unique string. Anyway, this is a cosmetic issue only.


 That way you don't have to keep a reference at all, while its possible
 to group multiple events into one namespace. This is now heavily used
 by most jQuery UI components when destroyed, to clean up their own
 event handlers without affecting any other.

 Multiple file upload we'll eventually have as part of jQuery UI. That
 would then be the same level of official and supported component that
 YUI provides. The descision to add new components is partly
 community-driven. So if you think multipart ajax uploads should be
 added, just ask for it.
 This is not about multiple file upload. We already have such
 component in Wicket. This is about support for input type=file on
 ajax uploads - just use hidden frame instead of xml http request.


 About selectors: John Resig is currently working on a new selector
 engine that likely outperformances any other selector engine available
 so far. Its developed as a standalone library, so its likely that
 MochKit and Prototype will use it, too.
 That sure is nice, but the selectors are not used in Wicket core at all.

 jQuery 1.3. will also provide heavy performance improvements for DOM
 manipulations, which I'm very exited about as that is usually where
 most time is spent. Its easy to avoid running certain selectors too
 often, but its hard to optimize DOM manipulation in clientcode.

 While we at this, I'd like to ask. Significant part of Wicket ajax is
 Wicket.replaceOuterHtml method. This was really a major pain to
 implement and stabilize. What it does is basically a replaceOuterHTML
 call for all browser but it works in totally cross browser

Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

2008-09-29 Thread Igor Vaynberg

and what happens when microsoft forks jquery and hires all of its
developers to work on its proprietary version? to me this is more a
risk then anything else

-igor

On Mon, Sep 29, 2008 at 2:13 PM, Jörn Zaefferer
[EMAIL PROTECTED] wrote:
 I guess I didn't quite get the file upload example in the first place.
 Uploading via iframe is supported by jQuery's form plugin, which is
 one of the best plugins we have. We plan to add it, together with
 other related plugins, to jQuery UI forms (or something like that).

 About selectors: jQuery promotes progressive enhancement a lot, and
 selectors are essential for that. One example for that is that we
 avoid inline onclick=.. and similar stuff. I'm not sure how that
 would be handled by Wicket, and if using jQuery would open ways to
 handle things differently.

 I can't give you too many details on replaceOuterHtml, though that
 sounds like I can easily get more info on. Currently jQuery does a lot
 of work cleaning html input that is appended into the DOM, which seems
 to be basically the same usecase here. Also executing script-tags is
 something we cover.
 Could you give me an example how exactly replaceOuterHTML is currently used?

 About the Microsoft argument: True, from a technical perspective that
 doesn't matter. But its an important political aspect: I already read
 a few comments from people that couldn't use jQuery due to a general
 no open-source policy - but now that Microsoft, that had exactly
 that policy, is changed theirs, it could enable others to adopt it,
 too.

 Jörn

 PS: I'm currently sitting on a panel with PPK and guys from Prototype,
 Dojo, YUI and jQuery. One question was: What library would you
 recommend but your own?. Two of the three non-jQuery guys recommened
 jQuery

 On Mon, Sep 29, 2008 at 1:41 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 On Mon, Sep 29, 2008 at 1:18 PM, Jörn Zaefferer
 [EMAIL PROTECTED] wrote:
 It would be a big plus for me if Wicket would adopt jQuery. Drupal
 does that, and anyone writing a Drupal module can rely on the fact
 that jQuery is available. Same for Wordpress, where plugin authors can
 rely on the availability of jQuery. And not having to load more than
 one library, internal or not, is a good thing performance-wise.

 In response to your examples:

 Unbinding only particular event handlers without having a reference to
 the handler function can be achieved with namespaces:
 $(element).bind(click.somethingUnique, handleClick);
 $(element).unbind(click.somethingUnique);

 But that's not quite the same. This requires me to use generate and
 keep a unique string. Anyway, this is a cosmetic issue only.


 That way you don't have to keep a reference at all, while its possible
 to group multiple events into one namespace. This is now heavily used
 by most jQuery UI components when destroyed, to clean up their own
 event handlers without affecting any other.

 Multiple file upload we'll eventually have as part of jQuery UI. That
 would then be the same level of official and supported component that
 YUI provides. The descision to add new components is partly
 community-driven. So if you think multipart ajax uploads should be
 added, just ask for it.
 This is not about multiple file upload. We already have such
 component in Wicket. This is about support for input type=file on
 ajax uploads - just use hidden frame instead of xml http request.


 About selectors: John Resig is currently working on a new selector
 engine that likely outperformances any other selector engine available
 so far. Its developed as a standalone library, so its likely that
 MochKit and Prototype will use it, too.
 That sure is nice, but the selectors are not used in Wicket core at all.

 jQuery 1.3. will also provide heavy performance improvements for DOM
 manipulations, which I'm very exited about as that is usually where
 most time is spent. Its easy to avoid running certain selectors too
 often, but its hard to optimize DOM manipulation in clientcode.

 While we at this, I'd like to ask. Significant part of Wicket ajax is
 Wicket.replaceOuterHtml method. This was really a major pain to
 implement and stabilize. What it does is basically a replaceOuterHTML
 call for all browser but it works in totally cross browser consistent
 way. I.e. it allows table rows, cells etc replaced in internet
 explorer and it also executes embedded script tags on browsers that
 would normally not do that (basically all except for Firefox). So my
 question is, just out of curiosity, is there/will there be similar
 functionality provided by jQuery?

 Anyway, thanks for taking the time to discuss this again.

 Sure. Keep in mind that the decision is not carved to stone. I'm open
 to argument, but I'm really interested in technical aspect. Having
 Microsoft will use jQuery is not really a valid argument to me :)

 -Matej


 Jörn

 On Mon, Sep 29, 2008 at 12:54 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 Are you really that surprised that Microsoft is

Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

2008-09-29 Thread Martijn Dashorst

On Mon, Sep 29, 2008 at 11:13 PM, Jörn Zaefferer
[EMAIL PROTECTED] wrote:
 PS: I'm currently sitting on a panel with PPK and guys from Prototype,
 Dojo, YUI and jQuery. One question was: What library would you
 recommend but your own?. Two of the three non-jQuery guys recommened
 jQuery

So you're saying that 75% of the leading JS framework community think
jquery is second best.

Please keep the jquery marketing BS and fanboyism to the jquery
forums. It serves nobody any good. In fact it makes me cringe and want
to -1 any and all votes for adopting anything near jquery.

Martijn

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Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

Okay, let's keep this focused.
Here is my experimental branch.

http://svn.apache.org/repos/asf/wicket/sandbox/knopp/experimental/

There is new Ajax implementation here:

http://svn.apache.org/repos/asf/wicket/sandbox/knopp/experimental/wicket/src/main/java/org/apache/_wicket/ajax/js/wicket-ajax-ng.js

and the main AjaxBehavior here:

http://svn.apache.org/repos/asf/wicket/sandbox/knopp/experimental/wicket/src/main/java/org/apache/_wicket/ajax/AjaxBehavior.java

What I'd like to hear is what exactly is wrong with it and how using
jQuery (or any other framework for that matter) could improve things.

-Matej

On Mon, Sep 29, 2008 at 11:45 PM, Martijn Dashorst
[EMAIL PROTECTED] wrote:
 On Mon, Sep 29, 2008 at 11:13 PM, Jörn Zaefferer
 [EMAIL PROTECTED] wrote:
 PS: I'm currently sitting on a panel with PPK and guys from Prototype,
 Dojo, YUI and jQuery. One question was: What library would you
 recommend but your own?. Two of the three non-jQuery guys recommened
 jQuery

 So you're saying that 75% of the leading JS framework community think
 jquery is second best.

 Please keep the jquery marketing BS and fanboyism to the jquery
 forums. It serves nobody any good. In fact it makes me cringe and want
 to -1 any and all votes for adopting anything near jquery.

 Martijn

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Re: OnChangeAjaxBehavior in ListView

2008-09-29 Thread Timo Rantalaiho

On Mon, 29 Sep 2008, Anders Peterson wrote:
 I'm using OnChangeAjaxBehavior with a TextField. The TextField is in a 
 table cell that is repeated using a ListView. When I change the value of 
 one of the TextFields more than one of the underlying models get updated 
 - the one that was supposed to be updated and all following in the list. 
 If I modify the first TextField then all underlying models get the same 
 value. If I modify the second then all except the first...

Hello,

It sounds like all your TextFields models would be connected
to each other. Show us the code and we'll see.

Best wishes,
Timo


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Re: wicket panels and parent class

2008-09-29 Thread Timo Rantalaiho

On Mon, 29 Sep 2008, James Carman wrote:
 Just be careful.  If the object reference in the parent is retrieved
 from a LoadableDetachableModel, then your panel and its parent can get
 out of sync.

Because of this, it is often better to abstract the access
with IModel.

Best wishes,
Timo

-- 
Timo Rantalaiho   
Reaktor Innovations OyURL: http://www.ri.fi/ 

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Re: wicket panels and parent class

2008-09-29 Thread Timo Rantalaiho

On Mon, 29 Sep 2008, Michael Sparer wrote:
 possible yes, recommended, no i'd say :-)
 
 if you need specific values from MyPanel then pass it via constructor, if
 you need values/attributes on component (e.g. isVisible) level use
 getParent()

I think that getParent() is generally a bad idea, because it
adds too much coupling and makes testing difficult.

Whenever you can simply pass dependencies in a constructor,
or set them from the parent after construction, that's 
probably the best way. You can even make the object 
references updateable by passing and storing a model 
wrapping the object instead of the object itself.


The visitor-based event mechanisms discussed in WICKET-1312
could be used to some extent, or you can use the visitors 
for pull-style stuff as well as my colleague did recently

public interface SelectedUserSource {
IModelUser selectedUser();
}

public class UserProfile extends Panel implements SelectedUserSource {... 

and in calling component

private IModelUser findSelectedUser() {
return (IModelUser) getPage().visitChildren(SelectedUserSource.class, 
new IVisitor() {
public Object component(Component component) {
return ((SelectedUserSource) component).selectedUser();
}
}):
}


Having the dependent class as an inner class of the dependee 
makes sense in trivial cases but is often just a more explicit
way of doing getParent(). I think that we desperately need to
find ways to make our UI (Wicket) code good object-oriented
code. I for one find myself often putting way too much stuff 
and coupling in a component class. 

Best wishes,
Timo

-- 
Timo Rantalaiho   
Reaktor Innovations OyURL: http://www.ri.fi/ 

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Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)

Wicket.replaceOuterHTML(element, newmarkup); would be this in jQuery:

$(element).after(newmarkup).remove();

That inserts the new stuff after the element, then removes the
element, leaving only the new content in the DOM. after() takes care
of cleanup stuff for table colgroups, rows and cells, legends, options
and so on.

Jörn

On Mon, Sep 29, 2008 at 11:31 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 On Mon, Sep 29, 2008 at 11:13 PM, Jörn Zaefferer
 [EMAIL PROTECTED] wrote:
 I guess I didn't quite get the file upload example in the first place.
 Uploading via iframe is supported by jQuery's form plugin, which is
 one of the best plugins we have. We plan to add it, together with
 other related plugins, to jQuery UI forms (or something like that).
 Well, that's what I'm talking about. It's a separate plugin. I don't
 know how good the plugin is. How actively it is mantained. Can I rely
 on it? Those are the questions I do not need to ask when dealing with
 YUI.

 About selectors: jQuery promotes progressive enhancement a lot, and
 selectors are essential for that. One example for that is that we
 avoid inline onclick=.. and similar stuff. I'm not sure how that
 would be handled by Wicket, and if using jQuery would open ways to
 handle things differently.

 In wicket 1.5 there won't be any inline handlers in the markup. All
 events will be attached separately.


 I can't give you too many details on replaceOuterHtml, though that
 sounds like I can easily get more info on. Currently jQuery does a lot
 of work cleaning html input that is appended into the DOM, which seems
 to be basically the same usecase here. Also executing script-tags is
 something we cover.
 Could you give me an example how exactly replaceOuterHTML is currently used?

 It is used every time Ajax request replaces component on page.
 Wicket.replaceOuterHTML(element, newmarkup);
 It replaces the element (the tag itself) with the new markup.
 But it takes care of some things such as when the element is a table
 row or cell, or if there are script tag embedded in the markup.


 About the Microsoft argument: True, from a technical perspective that
 doesn't matter. But its an important political aspect: I already read
 a few comments from people that couldn't use jQuery due to a general
 no open-source policy - but now that Microsoft, that had exactly
 that policy, is changed theirs, it could enable others to adopt it,
 too.

 Well, I consider YAHOO to be a player that is major enough when the
 political questions arise.
 As for Microsoft and it's no open-source policy, well, until vista
 they have been using BSD network stack and had no problems with that
 as far as i can tell :)

 -Matej


 Jörn

 PS: I'm currently sitting on a panel with PPK and guys from Prototype,
 Dojo, YUI and jQuery. One question was: What library would you
 recommend but your own?. Two of the three non-jQuery guys recommened
 jQuery

 On Mon, Sep 29, 2008 at 1:41 PM, Matej Knopp [EMAIL PROTECTED] wrote:
 On Mon, Sep 29, 2008 at 1:18 PM, Jörn Zaefferer
 [EMAIL PROTECTED] wrote:
 It would be a big plus for me if Wicket would adopt jQuery. Drupal
 does that, and anyone writing a Drupal module can rely on the fact
 that jQuery is available. Same for Wordpress, where plugin authors can
 rely on the availability of jQuery. And not having to load more than
 one library, internal or not, is a good thing performance-wise.

 In response to your examples:

 Unbinding only particular event handlers without having a reference to
 the handler function can be achieved with namespaces:
 $(element).bind(click.somethingUnique, handleClick);
 $(element).unbind(click.somethingUnique);

 But that's not quite the same. This requires me to use generate and
 keep a unique string. Anyway, this is a cosmetic issue only.


 That way you don't have to keep a reference at all, while its possible
 to group multiple events into one namespace. This is now heavily used
 by most jQuery UI components when destroyed, to clean up their own
 event handlers without affecting any other.

 Multiple file upload we'll eventually have as part of jQuery UI. That
 would then be the same level of official and supported component that
 YUI provides. The descision to add new components is partly
 community-driven. So if you think multipart ajax uploads should be
 added, just ask for it.
 This is not about multiple file upload. We already have such
 component in Wicket. This is about support for input type=file on
 ajax uploads - just use hidden frame instead of xml http request.


 About selectors: John Resig is currently working on a new selector
 engine that likely outperformances any other selector engine available
 so far. Its developed as a standalone library, so its likely that
 MochKit and Prototype will use it, too.
 That sure is nice, but the selectors are not used in Wicket core at all.

 jQuery 1.3. will also provide heavy performance improvements for DOM
 manipulations, which I'm very exited about as that is

Re: WANG–Wicket Ajax Next Generation–being based on YUI (MD)