Guice and Wicket: using SessionScoped injections

2013-10-30 Thread Zeldor

I have a working Wicket [v6] application with Guice [v3] - I have used
dependency injection for repository operations right now and I want to
expend it into using services that are session scoped (one per user's
session). I have read through official documentation, various blog posts and
questions here, but I am not sure if I am using the correct approach.

I have two questions: 1. Do I use the correct way? 2. Do I need anything
special to run TestNG tests on classes that rely on SessionScoped
injections?

My setup: web.xml:

filter
filter-nameguiceFilter/filter-name
filter-classcom.google.inject.servlet.GuiceFilter/filter-class
/filter
filter-mapping
filter-nameguiceFilter/filter-name
url-pattern/*/url-pattern
/filter-mapping
listener
listener-classcom.xxx.CustomServletConfig/listener-class

MyApplication init:

@Override
protected void init()
{
super.init();
getResourceSettings().setResourcePollFrequency(null);
getMarkupSettings().setStripWicketTags(true);
getDebugSettings().setDevelopmentUtilitiesEnabled(true);
GuiceComponentInjector injector = new GuiceComponentInjector(this, new
WebModule(), new GuiceModule());;
}

CustomServletConfig:

public class CustomServletConfig extends GuiceServletContextListener {

@Override
protected Injector getInjector() {
return Guice.createInjector(new GuiceModule(), new WebModule());
}

WebModule:

public static class WebModule extends ServletModule {

@Override
protected void configureServlets() {
   
bind(WebApplication.class).toProvider(WicketGuiceAppProvider.class).asEagerSingleton();
  

   
bind(IUserService.class).to(UserService.class).in(ServletScopes.SESSION);

MapString, String params = new HashMapString, String();
params.put(WicketFilter.FILTER_MAPPING_PARAM, /*);  

filter(/*).through(WicketGuiceFilter.class, params);  
}
}

In an example page I have:

@Inject
IUserService userService

...

userService.doSomething

At userService.doSomething during unit test I am getting Guice
OutOfScopeException, pointing to my bindings in ServletModule: Error in
custom provider, com.google.inject.OutOfScopeException?: Cannot access
scoped object. Either we are not currently inside an HTTP Servlet request,
or you may have forgotten to apply com.google.inject.servlet.GuiceFilter? as
a servlet filter for this request.

Is my configuration ok and I need to run unit tests differently (I am simply
launching my application with WicketTester), or is my design faulty?




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PropertyModel not refreshing

2011-10-06 Thread Zeldor
Hi,

I have a form with labels that use PropertyModel. They work fine when I test
them locally - when I click on submit button I get proper refreshed values
in labels. But when I deploy my app it does not work, I still get old
values. Where can be the problem? I am using Wicket 1.4.17 and deploying on
Google AppEngine. 

My code:

FormString buildHousesForm = new FormString(buildHousesForm, new
ModelString())
...
...
add(new Label(houses_amount,  new PropertyModel(MySession.get().getUser(),
village)));
...
...

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Re: PropertyModel not refreshing

2011-10-06 Thread Zeldor
Why would there be a difference between local and deployed versions?

And won't it negatively affect performance?

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Re: PropertyModel not refreshing

2011-10-06 Thread Zeldor
Thanks, I will give it a try :)

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Authentication and sessions - the right way?

2011-10-03 Thread Zeldor
Hi,

I have a problem with designing authentication and session properly. I asked
for help some time ago, but I was not able to fix the problem.

I have a standard situation - I have an app that has bunch of pages and only
main page with login form should be accessible for everyone. Everything else
should be available after you log in. And some technical pages that should
be accessible for admins only.

So I want AuthenticatedApplication and AuthenticatedWebSession. I set main
page with login form in Application as the page that does not need
authentication. Then someone enters proper credentials and I set in Session
username [key] and whole User entity (transient) with proper role.

It all works fine on my computer, but when I deploy it, it stops working.
Session gets detached on the way and I cannot fetche the data to my models.
Yes, I keep user data in my session, I could do it with datastore queries,
but session is better solution on AppEngine. And problem would still be the
same pretty much.
There are 2 problems, which I don't really understand:

1. Session gets detached - where is it explained when and why it happens?
How should I properly initialise it? I thought that making
MySession.get().(...) would be enough... When user logs in, I do
MySession.get().setUser(...). Then user gets redirected to main app page,
where there are labels to display data
(MySession.get().getUser().getValueX(). Where is my mistake?

2. How to fetch data from Guice in Session? I have a RepositoryUser
Inject, but when it is used in Session it throws nullpointer exception.
Should I have it in session at all? I guess repopulating user data like that
is not the best idea, I should probably just redirect him to login page
again, if session somehow losses data.

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Re: Authentication and sessions - the right way?

2011-10-03 Thread Zeldor
But would it be possible to store User data in the session without having to
fetch it from datastore on every request? My users don't interact with each
other and they operate only on their own data. So it'd be most efficient to
store User data in the session and interact with db only when some data is
changed. 

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Re: Authentication and sessions - the right way?

2011-10-03 Thread Zeldor
So it's normal that I lose User data when I move from login to main page and
I will have to fetch it from db quite often.

When will it happen? I have users browsing around my app, doing most often
nothing. Plenty of labels with gets. Will browsing like that trigger
fetching user data from db? Or will that data be served from cache? 

Whenever anything changes data will be stored in db and page will reload.
Will it fetch data from db again or serve them from cache?

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Re: Authentication and sessions - the right way?

2011-10-03 Thread Zeldor
Marco:

And it works without problems? There is no issue with user trying to log
from 2 browser on same time, trying to cheat the system? I am just wondering
if there is any risk of that. 
How does your code look then in session and how do you fetch your data? 

Martin:

I was trying to save on costs, where on AppEngine you are billed for every
DB query, while memcache is pretty much free. Is it really hard to keep
session data in sync? Only that user can modify his data.

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Re: Users, sessions, data...

2011-06-16 Thread Zeldor
Well, my app is a game which you could call Excel, but in fantasy settings :)
Modifying lots of tables and simple calculations, lots of them. Some people
call that building, attacking, spellcasting...

I have most of stuff atm in User entity, over 100 variables, some of them
ArrayLists and HashMaps. Persistence with JDO and Guice to make things
nicer. Right now I am putting whole User into session, then retrieving data
from it. When user modified smth with a form, it would persist whole User to
the db. Most of the time there is not much interaction - user walks around
the app and looks at numbers, getting them every time from db and not from
session seems ineffective. Of course consistency and workability are more
important :) Smooth experience for users and no chance for bugs [ISE, blank
pages, other user's data, out of order persists] is the most important thing
here. 

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Users, sessions, data...

2011-06-15 Thread Zeldor
Hi,

My last attempts to fix my session and advices here made me thinking if my
approach is good. So I'm curious - how do you handle users and their data?
In my case I have session, when user logs in entire entity gets loaded into
session. Later I get user data from that session and when he changes
anything it gets persisted to db. There is no direct interaction between
user and only that user can access his data. What is your approach? :)

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Re: Users, sessions, data...

2011-06-15 Thread Zeldor
But what are benefits of small session really? With entire user in session I
can skip getting data from db and serve data faster...

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Re: Users, sessions, data...

2011-06-15 Thread Zeldor
Well, I'm hosting it on GAE and with new pricing model I have to worry about
instances, not memcache or things like that. And I don't have to do load
balancing. To be sure that data does not get lost between instances [which
could happen probably with big traffic and longer inactivity from user] I
can just have a check in getUser() method which could reload data from db if
needed. I wonder if enabling multithreading could cause problems...

Loading user every time from db would be probably too slow and could spin up
too many instances due to that. Right now it looks like I can get data fast
from session and do a persist in 15-30ms. Add time for all calculations of
course. Numbers may be different with more users though. 

Anyway, I'm fairly new to programming and Wicket, so I don't know what's
fast or reasonable. Just trying to figure if I'm going in good direction
before it's too late to change it. 

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Rounding values for display

2011-06-09 Thread Zeldor
Hi,

I have labels showing data that is in Double format, but I don't need so
much precision in UI. Can I easily make my page round those values [down]
and display just numbers without fraction?

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Major session problem [GAE]

2011-06-09 Thread Zeldor
Hi,

I have really serious problems with my sessions - or rather getting and
displaying data with it. It works great when tested locally, but when
deployed to GAE it acts weird. In bad way. I have no idea if it's wicket or
GAE issue, but maybe I can get some hints here.

Problem is that:
- it quite often fails to load data, so when user logs it it shows blank
pages, without any data, that should com from session
[MySession.loggedInUser.get...]
- on very rare occasions it can show old values, that were changed long time
ago, some residue must be left over somewhere and is not cleaned and somehow
it can switch between
- and there was a case when one user could see data from other user [so
sessions switched?]

Of course situations 23 can never happen. Situation 1 neither - but maybe
it can be solved by some check and reload of data?

Some code to illustrate:

MySession:

public class MySession extends WebSession {

public MySession(Request request) {
super(request);
}

public boolean isAuthenticated() {
return (loggedInUser != null);
}

public static User loggedInUser;


public User getLoggedInUser() {
return loggedInUser;
}
public void setLoggedInUser(User loggedInUser) {
this.loggedInUser = loggedInUser;
}
}

In Login:

((MySession) MySession.get()).setLoggedInUser(user);


Later data is accessed by MySession.loggedInUser.[getters/setters here] and
persisted to datastore when anything changes.

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Re: Rounding values for display

2011-06-09 Thread Zeldor
So I can use one converter in Application for all my Labels? That would be
great :)

P.S. I am really amazed how fast you can get responses here. It's hard not
to love Wicket.

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Re: Major session problem [GAE]

2011-06-09 Thread Zeldor
Yeah, no idea why Static is there, must be some leftover from early code.
It's good to have someone else take a look at your code and point the
obvious :) I will check if it solves my problems.

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Re: Major session problem [GAE]

2011-06-09 Thread Zeldor
norckon:

Getting whole entity is good in my case. User can modify only his data and
no one else can even access or see it. It speeds up things too. 

Anyway, how do you invoke the rest? Without static you of course get
non-static method cannot be referenced from a static context compilation
error.

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Re: Major session problem [GAE]

2011-06-09 Thread Zeldor
So...

MySession.get().getUser().getLand() 

to properly get a value from session? Looks like it could have some
performance issues, or does it just look so scary? :)


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DataView the easy way?

2011-06-07 Thread Zeldor
Hi,

I am trying to make my first DataView and I found an example that does what
I want. It's quite confusing though - it takes like 15 pages and classes to
do it and I cannot decipher it. 
http://wicketstuff.org/wicket14/repeater/?wicket:bookmarkablePage=:org.apache.wicket.examples.repeater.SimplePage
http://wicketstuff.org/wicket14/repeater/?wicket:bookmarkablePage=:org.apache.wicket.examples.repeater.SimplePage
 

So, any ideas how to do it fast, just on one page? I have a HashTable with
ArrayLists [HashTablelt;Integer, ArrayListlt;Longgt;] that I want to
display. Of course I don't know how many rows I will have, that's why I want
DataView. I want to display 3 first data from the ArrayList in the map and I
want to be able to select rows [so I can delete them by int id].

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Links blocked when I enter page

2011-06-07 Thread Zeldor
Hi,

I have rather weird problem. I have a page with navigation panel [mostly
bookmarkable links]. It works fine on all but one. On that one page when I
enter it, some of my navigation links get blocked - 2 out of 5. Any idea
what may be causing it? They turn fine when I click on submit button on that
page [it turns visibility of another button to true - can there be some
weird bug with it?].

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Re: Links blocked when I enter page

2011-06-07 Thread Zeldor
Well, they don't do it in my case. Maybe because they are in panel...

Anyway, I wouldn't have problem with that. It's that 2 other links are
blocked, those that lead to other pages. I don't have problem like that on
other pages and only thing here that is different is that additional submit
button with changing visibility. 

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Re: DataView the easy way?

2011-06-07 Thread Zeldor
Right :)


So I want to start with something like:

add(new DataViewExpedition(expedition,
MySession.loggedInUser.colonisations) {
});

I am confused how to implement populateItem though...


 

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Re: DataView the easy way?

2011-06-07 Thread Zeldor
Do I need to do anything special? Will it automatically go through all rows
of my Map? When my map is HashMaplt;Integer,ArrayListgt; then Expedition
will be my ArrayList or whole row, together with int id? I could probably
use just a list of ArrayLists if it'd be easier...

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Re: DataView the easy way?

2011-06-07 Thread Zeldor
Ok, I changed it to ArrayListlt;ArrayListlt;Longgt;, but I still don't
get how to use populateItem...


Even testing just that
add(new DataViewExpedition(expedition,
MySession.loggedInUser.colonisations)
{

});

Results in:
internal error; cannot instantiate org.
apache.wicket.markup.repeater.data.DateView.init at
org.apache.wicket.markup.repeater.data.DAtaViewExpedition to ()

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Re: Links blocked when I enter page

2011-06-07 Thread Zeldor
Nope, panel is separate. There should be no connection... I will rather paste
some code, maybe it will give a hint...

add(new FeedbackPanel(errorMsg));
// starting form
private boolean col_approval = false;   

Button calculateColCost = new 
Button(calculateColCost) {
@Override
public void onSubmit() {
//some methods, one with

sendExpedition.setVisible(false);

else {

sendExpedition.setVisible(true);


//...
Button sendExpedition = new Button(sendExpedition) {
//...
};
{
add(sendExpedition);
sendExpedition.setVisible(col_approval);
};

};
//add form


I don't see anything special here, so no idea how it could make result like
that...

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Re: DataView the easy way?

2011-06-07 Thread Zeldor
I almost have it... I have my ArrayList of lists, so I guess my code should
look smth like that:


ArrayListlt;ArrayListlt;Longgt; colonisations =
MySession.loggedInUser.colonisations;
add(new DataView(expeditionsView, new 
ListDataProvider(colonisations))
 {
 @Override
 protected void populateItem(final Item item)
 {
 ArrayList expedition = (ArrayList)item.getModelObject();   

// item represents the current row-component
 item.add(new Label(title, expedition.get(0)));
 item.add(new Label(price, expedition.get(1)));
 }
 }); 

I must be doing some fundamental mistake here, as it can't work. It throws
cannot find symbol: symbol constructor Label at both item.add lines

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Re: DataView the easy way?

2011-06-07 Thread Zeldor
Thanks a lot, it works :)

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Re: ArrayList, Label and Model

2010-10-23 Thread Zeldor

Nope, still same error:

org.apache.wicket.RequestCycle logRuntimeException: no get method
defined for class: class com.myproject.economy.Building$1 expression:
house_cost
org.apache.wicket.WicketRuntimeException: no get method defined for
class: class com.myproject.economy.Building$1 expression: house_cost



{
System.out.println(Values: + house_cost.get(0)+  +
house_cost.get(1)+  + house_cost.get(2)+  + house_cost.get(3)+  +
house_cost.get(4) );
}
This works and gives proper values. I'd be surprised if Wicket required smth
special just to display that...


On Sat, Oct 23, 2010 at 7:08 AM, Ernesto Reinaldo Barreiro-4 [via Apache
Wicket] 
ml-node+3008166-1025517113-152...@n4.nabble.comml-node%2b3008166-1025517113-152...@n4.nabble.com
 wrote:

 Can you try PropertyModel(this, house_cost[4])?

 Ernesto

 On Fri, Oct 22, 2010 at 10:39 PM, Zeldor [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=3008166i=0
 wrote:

 
  Hi,
 
  I am trying to make an ArrayList, populate it and then display them [and
 do
  other stuff later, but I did not get so far]. It does not work though, so

  what I am missing?
 
  My code looks like that:
 
 
  ...
 ArrayListDouble house_cost = new ArrayListDouble(5);
  ...
  [adding some data here]
 
  [form]
 add(new Label(houses_goldcost, new PropertyModel(this,
  house_cost.get(4;
  ...
 
  I am of course getting the generic no get method defined for class
 error,
  so I must be doing something wrong. What is the correct way to get just
 one
  cell from ArrayList and display it with a Label?
 
 
  --
  View this message in context:
 http://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.htmlhttp://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.html?by-user=t
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Re: ArrayList, Label and Model

2010-10-23 Thread Zeldor

Ha! Good suggestion, I should have looked at this earlier. I guess I need
better understanding of how things work. this in my situation referred
just to a form, so it could not find the data required. When I cloned the
ArrayList again in the Form, it works. But that's not exactly good thing to
do, what should I use instead of this to get the data properly, without
repeating it? Building.class does not work [same error with get method]. I
just want to access and display data that is outside form...

Right now it looks like that:

public class Building extends EconPage{
public Building() {
int nation = MySession.loggedInUser.getNation();
ArrayListDouble base_costs = new ArrayListDouble();
final ArrayListDouble house_cost = new ArrayListDouble(5);
...
add(new FeedbackPanel(errorMsg));
FormString buildHousesForm = new FormString(buildHousesForm,
new ModelString()) {
private TextFieldLong build_houses = new
TextFieldLong(build_houses, new ModelLong());
{
   ...
add(new Label(houses_infracost, new
PropertyModel(this, houses_cost.0)));
   ...
   add(build_houses);
}
};
add(buildHousesForm);
}
}



On Sat, Oct 23, 2010 at 2:13 PM, Sven Meier [via Apache Wicket] 
ml-node+3008353-1436517199-152...@n4.nabble.comml-node%2b3008353-1436517199-152...@n4.nabble.com
 wrote:

 The PropertyModel is having problems with house_cost.

 What is this in your example? Is house_cost a member variable of
 your this?

 Sven

 On 10/23/2010 11:35 AM, Zeldor wrote:

  Nope, still same error:
 
  org.apache.wicket.RequestCycle logRuntimeException: no get method
  defined for class: class com.myproject.economy.Building$1 expression:
  house_cost
  org.apache.wicket.WicketRuntimeException: no get method defined for
  class: class com.myproject.economy.Building$1 expression: house_cost
 
 
 
  {
   System.out.println(Values: + house_cost.get(0)+  +
  house_cost.get(1)+  + house_cost.get(2)+  + house_cost.get(3)+  +
  house_cost.get(4) );
   }
  This works and gives proper values. I'd be surprised if Wicket required
 smth
  special just to display that...
 
 
  On Sat, Oct 23, 2010 at 7:08 AM, Ernesto Reinaldo Barreiro-4 [via Apache
  Wicket][hidden email]http://user/SendEmail.jtp?type=nodenode=3008353i=0
 [hidden email] http://user/SendEmail.jtp?type=nodenode=3008353i=1
 
  wrote:
 
 
  Can you try PropertyModel(this, house_cost[4])?
 
  Ernesto
 
  On Fri, Oct 22, 2010 at 10:39 PM, Zeldor[hidden email]
 http://user/SendEmail.jtp?type=nodenode=3008166i=0
  wrote:
 
 
  Hi,
 
  I am trying to make an ArrayList, populate it and then display them
 [and
 
  do
 
  other stuff later, but I did not get so far]. It does not work though,
 so
 
 
  what I am missing?
 
  My code looks like that:
 
 
  ...
  ArrayListDouble  house_cost = new
 ArrayListDouble(5);
  ...
  [adding some data here]
 
  [form]
  add(new Label(houses_goldcost, new PropertyModel(this,
  house_cost.get(4;
  ...
 
  I am of course getting the generic no get method defined for class
 
  error,
 
  so I must be doing something wrong. What is the correct way to get just

 
  one
 
  cell from ArrayList and display it with a Label?
 
 
  --
  View this message in context:
 
 
 http://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.htmlhttp://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.html?by-user=t
 
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  Sent from the Users forum mailing list archive at Nabble.com.
 
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Re: ArrayList, Label and Model

2010-10-23 Thread Zeldor

It's a table with lots of data to display, with a mixture of plain text,
data from session and from arrays, so it'd be rather hard to solve it with
ListView.

So my only problem is how to point the Label to data that is outside Form.

On Sat, Oct 23, 2010 at 5:03 PM, James Carman [via Apache Wicket] 
ml-node+3008486-1151478827-152...@n4.nabble.comml-node%2b3008486-1151478827-152...@n4.nabble.com
 wrote:

 The PropertyModel takes a root object on which it will evaluate the
 expression.  So, you have to make sure the property is traversable
 from the root object.  Most likely, you'd be better off using a
 ListView for your situation if you're trying to show all the items in
 the list.

 On Sat, Oct 23, 2010 at 10:59 AM, Zeldor [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=3008486i=0
 wrote:

 
  Ha! Good suggestion, I should have looked at this earlier. I guess I
 need
  better understanding of how things work. this in my situation referred
  just to a form, so it could not find the data required. When I cloned the

  ArrayList again in the Form, it works. But that's not exactly good thing
 to
  do, what should I use instead of this to get the data properly, without

  repeating it? Building.class does not work [same error with get
 method]. I
  just want to access and display data that is outside form...
 
  Right now it looks like that:
 
  public class Building extends EconPage{
  public Building() {
 int nation = MySession.loggedInUser.getNation();
 ArrayListDouble base_costs = new ArrayListDouble();
 final ArrayListDouble house_cost = new ArrayListDouble(5);
  ...
  add(new FeedbackPanel(errorMsg));
 FormString buildHousesForm = new FormString(buildHousesForm,

  new ModelString()) {
 private TextFieldLong build_houses = new
  TextFieldLong(build_houses, new ModelLong());
 {
...
 add(new Label(houses_infracost, new
  PropertyModel(this, houses_cost.0)));
...
add(build_houses);
 }
  };
  add(buildHousesForm);
  }
  }
 
 
 
  On Sat, Oct 23, 2010 at 2:13 PM, Sven Meier [via Apache Wicket] 
  [hidden email] 
  http://user/SendEmail.jtp?type=nodenode=3008486i=1[hidden
 email] http://user/SendEmail.jtp?type=nodenode=3008486i=2
  wrote:
 
  The PropertyModel is having problems with house_cost.
 
  What is this in your example? Is house_cost a member variable of
  your this?
 
  Sven
 
  On 10/23/2010 11:35 AM, Zeldor wrote:
 
   Nope, still same error:
  
   org.apache.wicket.RequestCycle logRuntimeException: no get method
   defined for class: class com.myproject.economy.Building$1 expression:
   house_cost
   org.apache.wicket.WicketRuntimeException: no get method defined for
   class: class com.myproject.economy.Building$1 expression: house_cost
  
  
  
   {
System.out.println(Values: + house_cost.get(0)+  +
   house_cost.get(1)+  + house_cost.get(2)+  + house_cost.get(3)+  +
   house_cost.get(4) );
}
   This works and gives proper values. I'd be surprised if Wicket
 required
  smth
   special just to display that...
  
  
   On Sat, Oct 23, 2010 at 7:08 AM, Ernesto Reinaldo Barreiro-4 [via
 Apache
   Wicket][hidden email]
 http://user/SendEmail.jtp?type=nodenode=3008353i=0
  [hidden email] http://user/SendEmail.jtp?type=nodenode=3008353i=1

  
   wrote:
  
  
   Can you try PropertyModel(this, house_cost[4])?
  
   Ernesto
  
   On Fri, Oct 22, 2010 at 10:39 PM, Zeldor[hidden email]
  http://user/SendEmail.jtp?type=nodenode=3008166i=0
   wrote:
  
  
   Hi,
  
   I am trying to make an ArrayList, populate it and then display them
  [and
  
   do
  
   other stuff later, but I did not get so far]. It does not work
 though,
  so
  
  
   what I am missing?
  
   My code looks like that:
  
  
   ...
   ArrayListDouble  house_cost = new
  ArrayListDouble(5);
   ...
   [adding some data here]
  
   [form]
   add(new Label(houses_goldcost, new PropertyModel(this,
   house_cost.get(4;
   ...
  
   I am of course getting the generic no get method defined for class

  
   error,
  
   so I must be doing something wrong. What is the correct way to get
 just
 
  
   one
  
   cell from ArrayList and display it with a Label?
  
  
   --
   View this message in context:
  
  
 
 http://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.htmlhttp://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.html?by-user=t
 
 http://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.html?by-user=thttp://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.html?by-user=tby-user=t

  
 
 http://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.html?by-user=thttp://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849

Re: ArrayList, Label and Model

2010-10-23 Thread Zeldor

Any good examples? :) It'd be certainly better to have some repeaters
instead of so many single Label declarations.

On Sat, Oct 23, 2010 at 5:32 PM, James Carman [via Apache Wicket] 
ml-node+3008524-1615548235-152...@n4.nabble.comml-node%2b3008524-1615548235-152...@n4.nabble.com
 wrote:

 You'd be surprised what you can do with a table.

 On Sat, Oct 23, 2010 at 11:09 AM, Zeldor [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=3008524i=0
 wrote:

 
  It's a table with lots of data to display, with a mixture of plain text,
  data from session and from arrays, so it'd be rather hard to solve it
 with
  ListView.
 
  So my only problem is how to point the Label to data that is outside
 Form.
 
  On Sat, Oct 23, 2010 at 5:03 PM, James Carman [via Apache Wicket] 
  [hidden email] 
  http://user/SendEmail.jtp?type=nodenode=3008524i=1[hidden
 email] http://user/SendEmail.jtp?type=nodenode=3008524i=2
  wrote:
 
  The PropertyModel takes a root object on which it will evaluate the
  expression.  So, you have to make sure the property is traversable
  from the root object.  Most likely, you'd be better off using a
  ListView for your situation if you're trying to show all the items in
  the list.
 
  On Sat, Oct 23, 2010 at 10:59 AM, Zeldor [hidden email]
 http://user/SendEmail.jtp?type=nodenode=3008486i=0
  wrote:
 
  
   Ha! Good suggestion, I should have looked at this earlier. I guess I

  need
   better understanding of how things work. this in my situation
 referred
   just to a form, so it could not find the data required. When I cloned
 the
 
   ArrayList again in the Form, it works. But that's not exactly good
 thing
  to
   do, what should I use instead of this to get the data properly,
 without
 
   repeating it? Building.class does not work [same error with get
  method]. I
   just want to access and display data that is outside form...
  
   Right now it looks like that:
  
   public class Building extends EconPage{
   public Building() {
  int nation = MySession.loggedInUser.getNation();
  ArrayListDouble base_costs = new ArrayListDouble();
  final ArrayListDouble house_cost = new ArrayListDouble(5);
   ...
   add(new FeedbackPanel(errorMsg));
  FormString buildHousesForm = new
 FormString(buildHousesForm,
 
   new ModelString()) {
  private TextFieldLong build_houses = new
   TextFieldLong(build_houses, new ModelLong());
  {
 ...
  add(new Label(houses_infracost, new
   PropertyModel(this, houses_cost.0)));
 ...
 add(build_houses);
  }
   };
   add(buildHousesForm);
   }
   }
  
  
  
   On Sat, Oct 23, 2010 at 2:13 PM, Sven Meier [via Apache Wicket] 
   [hidden email] 
   http://user/SendEmail.jtp?type=nodenode=3008486i=1[hidden

  email] http://user/SendEmail.jtp?type=nodenode=3008486i=2
   wrote:
  
   The PropertyModel is having problems with house_cost.
  
   What is this in your example? Is house_cost a member variable of
   your this?
  
   Sven
  
   On 10/23/2010 11:35 AM, Zeldor wrote:
  
Nope, still same error:
   
org.apache.wicket.RequestCycle logRuntimeException: no get method
defined for class: class com.myproject.economy.Building$1
 expression:
house_cost
org.apache.wicket.WicketRuntimeException: no get method defined for

class: class com.myproject.economy.Building$1 expression:
 house_cost
   
   
   
{
 System.out.println(Values: + house_cost.get(0)+  +
house_cost.get(1)+  + house_cost.get(2)+  + house_cost.get(3)+  +
house_cost.get(4) );
 }
This works and gives proper values. I'd be surprised if Wicket
  required
   smth
special just to display that...
   
   
On Sat, Oct 23, 2010 at 7:08 AM, Ernesto Reinaldo Barreiro-4 [via
  Apache
Wicket][hidden email]
  http://user/SendEmail.jtp?type=nodenode=3008353i=0
   [hidden email] 
 http://user/SendEmail.jtp?type=nodenode=3008353i=1
 
   
wrote:
   
   
Can you try PropertyModel(this, house_cost[4])?
   
Ernesto
   
On Fri, Oct 22, 2010 at 10:39 PM, Zeldor[hidden email]
   http://user/SendEmail.jtp?type=nodenode=3008166i=0
wrote:
   
   
Hi,
   
I am trying to make an ArrayList, populate it and then display
 them
   [and
   
do
   
other stuff later, but I did not get so far]. It does not work
  though,
   so
   
   
what I am missing?
   
My code looks like that:
   
   
...
ArrayListDouble  house_cost = new
   ArrayListDouble(5);
...
[adding some data here]
   
[form]
add(new Label(houses_goldcost, new PropertyModel(this,
house_cost.get(4;
...
   
I am of course getting the generic no get method defined for
 class
 
   
error,
   
so I must be doing something wrong. What is the correct way to
 get
  just
  
   
one
   
cell from ArrayList

Re: ArrayList, Label and Model

2010-10-23 Thread Zeldor

Right, I am certainly going to upgrade my app to use as much Ajax as
possible, to make it more efficient :)

I am still curious what I should use isntead of this to display data not
in Form.

On Sat, Oct 23, 2010 at 6:19 PM, James Carman [via Apache Wicket] 
ml-node+3008574-339171290-152...@n4.nabble.comml-node%2b3008574-339171290-152...@n4.nabble.com
 wrote:

 Here's an example of setting up an AjaxFallbackDefaultDataTable:


 http://svn.carmanconsulting.com/public/wicket-advanced/trunk/src/main/java/com/carmanconsulting/wicket/advanced/web/story3/page/Home.java

 It's simple, but it gives you the idea.  You'll probably need to
 figure out how to do your own custom column, unless you use a list of
 more complex objects (think DTOs) containing the properties you want
 to display.  This might be the easiest way to do what you want.

 On Sat, Oct 23, 2010 at 12:10 PM, James Carman
 [hidden email] http://user/SendEmail.jtp?type=nodenode=3008574i=0
 wrote:

  Well, I'd start with a ListView if you really think it's that
  difficult.  It should be easy to do, though.  You'd just take one
  set of those labels and put it inside the populateItem() method.  If
  you want headers, sorting, etc., then you might want to upgrade to a
  DefaultDataTable (or its ajax-based subclass).
 
  On Sat, Oct 23, 2010 at 11:51 AM, Zeldor [hidden 
  email]http://user/SendEmail.jtp?type=nodenode=3008574i=1
 wrote:
 
  Any good examples? :) It'd be certainly better to have some repeaters
  instead of so many single Label declarations.
 
  On Sat, Oct 23, 2010 at 5:32 PM, James Carman [via Apache Wicket] 
  [hidden email] 
  http://user/SendEmail.jtp?type=nodenode=3008574i=2[hidden
 email] http://user/SendEmail.jtp?type=nodenode=3008574i=3
  wrote:
 
  You'd be surprised what you can do with a table.
 
  On Sat, Oct 23, 2010 at 11:09 AM, Zeldor [hidden email]
 http://user/SendEmail.jtp?type=nodenode=3008524i=0
  wrote:
 
  
   It's a table with lots of data to display, with a mixture of plain
 text,
   data from session and from arrays, so it'd be rather hard to solve it

  with
   ListView.
  
   So my only problem is how to point the Label to data that is outside
  Form.
  
   On Sat, Oct 23, 2010 at 5:03 PM, James Carman [via Apache Wicket] 
   [hidden email] 
   http://user/SendEmail.jtp?type=nodenode=3008524i=1[hidden

  email] http://user/SendEmail.jtp?type=nodenode=3008524i=2
   wrote:
  
   The PropertyModel takes a root object on which it will evaluate
 the
   expression.  So, you have to make sure the property is traversable
   from the root object.  Most likely, you'd be better off using a
   ListView for your situation if you're trying to show all the items
 in
   the list.
  
   On Sat, Oct 23, 2010 at 10:59 AM, Zeldor [hidden email]
  http://user/SendEmail.jtp?type=nodenode=3008486i=0
   wrote:
  
   
Ha! Good suggestion, I should have looked at this earlier. I
 guess I
 
   need
better understanding of how things work. this in my situation
  referred
just to a form, so it could not find the data required. When I
 cloned
  the
  
ArrayList again in the Form, it works. But that's not exactly good

  thing
   to
do, what should I use instead of this to get the data properly,
  without
  
repeating it? Building.class does not work [same error with get
   method]. I
just want to access and display data that is outside form...
   
Right now it looks like that:
   
public class Building extends EconPage{
public Building() {
   int nation = MySession.loggedInUser.getNation();
   ArrayListDouble base_costs = new ArrayListDouble();
   final ArrayListDouble house_cost = new
 ArrayListDouble(5);
...
add(new FeedbackPanel(errorMsg));
   FormString buildHousesForm = new
  FormString(buildHousesForm,
  
new ModelString()) {
   private TextFieldLong build_houses = new
TextFieldLong(build_houses, new ModelLong());
   {
  ...
   add(new Label(houses_infracost, new
PropertyModel(this, houses_cost.0)));
  ...
  add(build_houses);
   }
};
add(buildHousesForm);
}
}
   
   
   
On Sat, Oct 23, 2010 at 2:13 PM, Sven Meier [via Apache Wicket] 
[hidden email] 
 http://user/SendEmail.jtp?type=nodenode=3008486i=1[hidden
 
   email] http://user/SendEmail.jtp?type=nodenode=3008486i=2
wrote:
   
The PropertyModel is having problems with house_cost.
   
What is this in your example? Is house_cost a member variable
 of
your this?
   
Sven
   
On 10/23/2010 11:35 AM, Zeldor wrote:
   
 Nope, still same error:

 org.apache.wicket.RequestCycle logRuntimeException: no get
 method
 defined for class: class com.myproject.economy.Building$1
  expression:
 house_cost
 org.apache.wicket.WicketRuntimeException: no get method defined
 for
 
 class: class

ArrayList, Label and Model

2010-10-22 Thread Zeldor

Hi,

I am trying to make an ArrayList, populate it and then display them [and do
other stuff later, but I did not get so far]. It does not work though, so
what I am missing?

My code looks like that:


...
ArrayListDouble house_cost = new ArrayListDouble(5);
...
[adding some data here]

[form]
add(new Label(houses_goldcost, new PropertyModel(this,
house_cost.get(4;
...

I am of course getting the generic no get method defined for class error,
so I must be doing something wrong. What is the correct way to get just one
cell from ArrayList and display it with a Label? 


-- 
View this message in context: 
http://apache-wicket.1842946.n4.nabble.com/ArrayList-Label-and-Model-tp3007849p3007849.html
Sent from the Users forum mailing list archive at Nabble.com.

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Re: ArrayList, Label and Model

2010-10-22 Thread Zeldor

Nope, it still does not work, so it must be something else. I have tried
searching here, but I have only found people using ArrayList as whole, for
dropdownmenus etc, not pointing to one specific data. It should be quite
simple...

On Fri, Oct 22, 2010 at 11:17 PM, Sven Meier [via Apache Wicket] 
ml-node+3007899-704217102-152...@n4.nabble.comml-node%2b3007899-704217102-152...@n4.nabble.com
 wrote:

 Hi,

 according to the API PropertyModel(this, house_cost.4) should work:


 http://wicket.apache.org/apidocs/1.4/org/apache/wicket/util/lang/PropertyResolver.html

 Sven

 Am 22.10.2010 22:39, schrieb Zeldor:

 
  Hi,
 
  I am trying to make an ArrayList, populate it and then display them [and
 do
  other stuff later, but I did not get so far]. It does not work though, so

  what I am missing?
 
  My code looks like that:
 
 
  ...
  ArrayListDouble  house_cost = new ArrayListDouble(5);
  ...
  [adding some data here]
 
  [form]
  add(new Label(houses_goldcost, new PropertyModel(this,
  house_cost.get(4;
  ...
 
  I am of course getting the generic no get method defined for class
 error,
  so I must be doing something wrong. What is the correct way to get just
 one
  cell from ArrayList and display it with a Label?
 
 


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MinimumValidator and Long problem

2010-10-12 Thread Zeldor

I have TextField that should take Long value, but on submit it does not
really work...


org.apache.wicket.RequestCycle logRuntimeException: Exception
'java.lang.ClassCastException: java.lang.Integer cannot be cast to
java.lang.Long' occurred during validation
org.apache.wicket.validation.validator.MinimumValidator on component
10:workForm:hire_worker_1
org.apache.wicket.WicketRuntimeException: Exception
'java.lang.ClassCastException: java.lang.Integer cannot be cast to
java.lang.Long' occurred during validation
org.apache.wicket.validation.validator.MinimumValidator on component
10:workForm:hire_worker_1


My code looks like that:

public Work() {
add(new FeedbackPanel(errorMsg));
FormString workForm = new FormString(workForm, new 
ModelString())
{
private TextFieldLong hire_worker_1 = new
TextFieldLong(hire_worker_1, new ModelLong());
...
{
...
add(hire_worker_1.add(new MinimumValidator(0))
.setType(Long.class));
...
}

@Override
public void onSubmit() {
long hiring_worker_1 = hire_worker_1.getModelObject();
...
}
};
add(workForm);
}

Eclipse does like new MinimumValidatorLong(0), so what's the solution
for my problem?

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Re: MinimumValidator and Long problem

2010-10-12 Thread Zeldor

Changing it to :

private TextFieldLong hire_worker_1 = new TextFieldLong(hire_worker_1,
new ModelLong());
{
hire_worker_1.setType(Long.class);
}

Does not change anything. And is it normal that Eclipse does not let me add
anything without enclosing in { }?

BTW, is there any easy way to convert nulls to 0 when you submit empty
TextFields?

On Tue, Oct 12, 2010 at 11:31 PM, jer...@wickettraining.com [via Apache
Wicket] 
ml-node+2992772-1878280583-152...@n4.nabble.comml-node%2b2992772-1878280583-152...@n4.nabble.com
 wrote:

 Since your model doesn't actually know what type of field it is operating
 on
 (like PropertyModel does), you need to call setType(Long.class) on your
 text
 field.

 On Tue, Oct 12, 2010 at 1:23 PM, Zeldor [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2992772i=0
 wrote:

 
  I have TextField that should take Long value, but on submit it does not
  really work...
 
 
  org.apache.wicket.RequestCycle logRuntimeException: Exception
  'java.lang.ClassCastException: java.lang.Integer cannot be cast to
  java.lang.Long' occurred during validation
  org.apache.wicket.validation.validator.MinimumValidator on component
  10:workForm:hire_worker_1
  org.apache.wicket.WicketRuntimeException: Exception
  'java.lang.ClassCastException: java.lang.Integer cannot be cast to
  java.lang.Long' occurred during validation
  org.apache.wicket.validation.validator.MinimumValidator on component
  10:workForm:hire_worker_1
 
 
  My code looks like that:
 
  public Work() {
 add(new FeedbackPanel(errorMsg));
 FormString workForm = new FormString(workForm, new
  ModelString())
  {
 private TextFieldLong hire_worker_1 = new
  TextFieldLong(hire_worker_1, new ModelLong());
  ...
  {
  ...
  add(hire_worker_1.add(new MinimumValidator(0))
 .setType(Long.class));
  ...
  }
 
  @Override
 public void onSubmit() {
 long hiring_worker_1 =
  hire_worker_1.getModelObject();
 ...
  }
 };
 add(workForm);
 }
 
  Eclipse does like new MinimumValidatorLong(0), so what's the solution

  for my problem?
 
  --
  View this message in context:
 
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Re: MinimumValidator and Long problem

2010-10-12 Thread Zeldor

I have nothing else really, just same more of same stuff, only a Form with
Labels, TextFields and submit method.

Anyway, deprecated NumberValidator.minimum(0) method works without any
problems, are there any disadvantages of using that?

On Wed, Oct 13, 2010 at 12:43 AM, jer...@wickettraining.com [via Apache
Wicket] 
ml-node+2992859-520586739-152...@n4.nabble.comml-node%2b2992859-520586739-152...@n4.nabble.com
 wrote:

 On Tue, Oct 12, 2010 at 5:36 PM, Igor Vaynberg [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2992859i=0wrote:


  its not a syntax problem. you cant have code outside a method unless
  its in a static {} block.
 
 
 To me, putting code outside a method *is* a syntax problem, typically
 caused
 by inexperience with anonymous inner classes, leading to not enough, or too

 many }

 --
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Re: RadioChoice - what's wrong?

2010-10-10 Thread Zeldor

So maybe someone could just show me working RadioChoice code with OnSubmit
part? Just how to properly display it and grab data from it :) That should
solve the problem, as I would compare and see what I'm doing wrong.
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Re: RadioChoice - what's wrong?

2010-10-10 Thread Zeldor

It does! Thanks a lot! I knew it was something stupid and trivial. Huh, but
it should not cause that still - I was defining TextFields in same way and
then again to add parameters and it went fine.

On Sun, Oct 10, 2010 at 7:11 PM, Andrea Del Bene [via Apache Wicket] 
ml-node+2970427-965616561-152...@n4.nabble.comml-node%2b2970427-965616561-152...@n4.nabble.com
 wrote:

 Hello Zeldor,

 I've red your code and it seems that you define variable rc two times:
 the first time as form private field and the second time just below
 between braces. When onSubmit method calls rc.getModelObject() it uses
 private field rc which was not initialized and so triggers a
 NullPointerException. Try to remove the second type definition
 RadioChoiceString and it should work.

  public class Registration extends WebPage {
  public Registration() {
  add(new FeedbackPanel(errorMsg));
 //New user registration form
  FormString regForm = new
  FormString(registrationForm,new ModelString()) {
  static final ListString NUMBERS =
  Arrays.asList(new String[] { 1, 2, 3 });
 
  private RadioChoiceString rc;
 
  {
  RadioChoiceString rc = new
  RadioChoiceString(numberRadioChoice, new
  ModelString(),NUMBERS).setSuffix();
  add(rc.setRequired(true));
  }
 
  @Override
  public void onSubmit() {
   String _numbers = rc.getModelObject();
   System.out.println(_numbers);
   }
  };
  add(regForm);
  }
  }


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Re: RadioChoice - what's wrong?

2010-10-08 Thread Zeldor

186 is System.out.println(_numbers);
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Re: RadioChoice - what's wrong?

2010-10-08 Thread Zeldor

Well, _numbers is null :) That's why I wonder what's wrong with getting the
ObjectModel - I must be doing smth wrong there :)

On Fri, Oct 8, 2010 at 8:43 AM, Igor Vaynberg-2 [via Apache Wicket] 
ml-node+2967914-1064517663-152...@n4.nabble.comml-node%2b2967914-1064517663-152...@n4.nabble.com
 wrote:

 in that case either your System or your System.out is null :)

 -igor

 On Thu, Oct 7, 2010 at 11:35 PM, Zeldor [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2967914i=0
 wrote:

 
  186 is System.out.println(_numbers);
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Re: RadioChoice - what's wrong?

2010-10-08 Thread Zeldor

Sure, but I posted pretty much everything related to radiochoice :) So I am
just not doing some obvious important steps for making RadioChoice work :)

Code, with all non-related parts removed, looks like that:

public class Registration extends WebPage {
public Registration() {
add(new FeedbackPanel(errorMsg));
   //New user registration form
FormString regForm = new FormString(registrationForm,
new ModelString()) {
static final ListString NUMBERS =
Arrays.asList(new String[] { 1, 2, 3 });

private RadioChoiceString rc;

{
RadioChoiceString rc = new
RadioChoiceString(numberRadioChoice, new ModelString(),
NUMBERS).setSuffix();
add(rc.setRequired(true));
}

@Override
public void onSubmit() {
   String _numbers = rc.getModelObject();
 System.out.println(_numbers);
 }
};
add(regForm);
}
}





On Fri, Oct 8, 2010 at 3:58 PM, Zilvinas Vilutis [via Apache Wicket] 
ml-node+2968370-862341428-152...@n4.nabble.comml-node%2b2968370-862341428-152...@n4.nabble.com
 wrote:

 Oh come on! no one will want to steal your non-working code!

 Use http://pastebin.com/ to show your code if you want someone's help ;)

 Ċ½ilvinas Vilutis

 Mobile:   (+370) 652 38353
 E-mail:   [hidden email]http://user/SendEmail.jtp?type=nodenode=2968370i=0



 On Thu, Oct 7, 2010 at 11:35 PM, Zeldor [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2968370i=1
 wrote:

 
  186 is System.out.println(_numbers);
  --
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 nothing is impossible


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RadioChoice - what's wrong?

2010-10-07 Thread Zeldor

Hi,

I am trying to get through with the very basics of Wicket - radiochoice. But
somehow I got stuck and all solutions I tried made my problems even worse...
So, what am I doing wrong?

I have this code:

static final ListString NUMBERS = Arrays.asList(new String[] { 1, 2,
3 });

private RadioChoiceString rc;

{
RadioChoiceString rc = new 
RadioChoiceString(numberRadioChoice, new
ModelString(), NUMBERS).setSuffix();
add(rc.setRequired(true));
}

String _numbers = rc.getModelObject();
System.out.println(_numbers);

When I submit the form I get:
NullPointerException

What am I doing wrong then? 
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Re: RadioChoice - what's wrong?

2010-10-07 Thread Zeldor

I doubt anything else is needed, it throws NullPointerException at syso
attempt. Rest of the form is working properly - I can of course post more
code, but what would be needed?

Stacktrace is pretty generic too...

org.apache.wicket.RequestCycle logRuntimeException: Method
onFormSubmitted of interface
org.apache.wicket.markup.html.form.IFormSubmitListener targeted at
component [MarkupContainer [Component id = registrationForm]] threw an
exception
org.apache.wicket.WicketRuntimeException: Method onFormSubmitted of
interface org.apache.wicket.markup.html.form.IFormSubmitListener
targeted at component [MarkupContainer [Component id =
registrationForm]] threw an exception
...
...
...
Caused by: java.lang.reflect.InvocationTargetException
at 
com.google.appengine.runtime.Request.process-a82d7b755ed3a9dd(Request.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:43)
at 
org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182)
... 50 more
Caused by: java.lang.NullPointerException
at com.spiritia.auth.Registration$1.onSubmit(Registration.java:186)
at 
org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1538)
at org.apache.wicket.markup.html.form.Form.process(Form.java:934)
at 
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:896)
... 55 more





On Thu, Oct 7, 2010 at 11:51 PM, Igor Vaynberg-2 [via Apache Wicket] 
ml-node+2967607-1764587878-152...@n4.nabble.comml-node%2b2967607-1764587878-152...@n4.nabble.com
 wrote:

 cant help you without seeing more code and stack

 -igor

 On Thu, Oct 7, 2010 at 2:28 PM, Zeldor [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2967607i=0
 wrote:

 
  Hi,
 
  I am trying to get through with the very basics of Wicket - radiochoice.
 But
  somehow I got stuck and all solutions I tried made my problems even
 worse...
  So, what am I doing wrong?
 
  I have this code:
 
  static final ListString NUMBERS = Arrays.asList(new String[] { 1,
 2,
  3 });
 
  private RadioChoiceString rc;
 
 {
 RadioChoiceString rc = new
 RadioChoiceString(numberRadioChoice, new
  ModelString(), NUMBERS).setSuffix();
 add(rc.setRequired(true));
 }
 
  String _numbers = rc.getModelObject();
  System.out.println(_numbers);
 
  When I submit the form I get:
  NullPointerException
 
  What am I doing wrong then?
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Best practice for DropDownChoice?

2010-10-01 Thread Zeldor

Hi,

I was looking at many threads here about that matter and even more google
links, after not really being able to properly use examples from Wicket in
Action and few others. So I wonder - what's the best and most common way to
implement DropDownChoice and map the value at the same time [well, option
that'd easily work with radio buttons too]. I have seen many suggestions
that were creating even few classes, then extended them, added other stuff.
There must be easier solution, right? :) All I want is some displayed value
[easy to localis too of course] + mapping it to int value [I am fine with
creating new variable and then changing real one, instead of trying to map
it to some class at once].


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checkGroup - 2 out of 5?

2010-09-05 Thread Zeldor

Hi,

I want to limit users to check exactly 2 options out of X. How can I do
that? I'd also like it to switch last chosen one to new one, if user has
already picked 2 [so it'd deselect last one and choose another, instead of
not doing anything at all]. 
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Re: checkGroup - 2 out of 5?

2010-09-05 Thread Zeldor

Oh, I hoped that it can be avoided. So anyone has AJAX example at hand? 
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