Re: wicket multi-window app

[Chuck Brinkman]

Martin,

Thanks for your input.

Chuck

From Chuck's iPad

iPad:  (502) 713-3283

On Aug 18, 2012, at 7:06 AM, Martin Grigorov  wrote:

> Hi,
> 
> Writing web apps requires writing JavaScript code ...
> Even if you use components like Wicket-extensions' ModalWindow or
> wicket-bootstrap's Modal, or wicket-jquery-ui's Dialog, or any other
> similar component you will still need to add some custom JS to make it
> working as you need it. And this is where Wicket shines - it doesn't
> mandate specific solutions, it allows you to make dynamic apps by
> reusing components and by making it easier to extend them for your
> specific needs.
> 
> On Sat, Aug 18, 2012 at 5:22 AM, Chuck Brinkman
>  wrote:
>> Hi,
>> 
>> I have a desktop application that I need to move to the web.  The desktop 
>> app supports multiple windows.  I'm told it wouldn't be unusual to have as 
>> many as 30 windows open.  All of the windows can be moved, resized, expanded 
>> to full screen (fill the original app window) and minimize.  The user 
>> community doesn't want to lose any look and feel of the desktop app.
>> 
>> Here are the hurdles that I see
>> 
>> -)  keeping the child windows on top of the parent window.
> that should be easy with CSS (z-index)
> 
>> -)  expanding a child window to fill the parent window
> Use JavaScript that manipulates the child's CSS properties
> 
>> -)  can I create a modal window?  A few of the desktop windows are modal.
> See wicket-extensions' ModalWindow
> 
>> -)  is there a limit to the number of child windows
> No
> 
>> -)  concerns about multi-window support in wicket
> Most of the time this just works
> 
>> 
>> So,
>> -)  Will wicket support any of this without me having to resort to writing 
>> javascript?
>> -)  What issues have I overlooked that will preclude the use of wicket
>> 
>> Thanks for your input
>> 
>> I looked at wicket a few years ago.  I'm a fan of the just java and just 
>> html aspect not to mention reusable components.  I would really like to hear 
>> that wicket will support this multi-window environment.  If not it looks 
>> like jquery which means lots of javascript and I think large amounts of 
>> javascript are unmanageable.
> 
> This is true but lately there are many good JS testing frameworks
> which make this more manageable.
> 
>> 
>> 
>> 
>> Chuck
>> -
>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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>> 
> 
> 
> 
> -- 
> Martin Grigorov
> jWeekend
> Training, Consulting, Development
> http://jWeekend.com
> 
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wicket multi-window app

[Chuck Brinkman]

Hi,

I have a desktop application that I need to move to the web.  The desktop app 
supports multiple windows.  I'm told it wouldn't be unusual to have as many as 
30 windows open.  All of the windows can be moved, resized, expanded to full 
screen (fill the original app window) and minimize.  The user community doesn't 
want to lose any look and feel of the desktop app.  

Here are the hurdles that I see

-)  keeping the child windows on top of the parent window.
-)  expanding a child window to fill the parent window
-)  can I create a modal window?  A few of the desktop windows are modal.
-)  is there a limit to the number of child windows
-)  concerns about multi-window support in wicket

So,
-)  Will wicket support any of this without me having to resort to writing 
javascript?
-)  What issues have I overlooked that will preclude the use of wicket

Thanks for your input

I looked at wicket a few years ago.  I'm a fan of the just java and just html 
aspect not to mention reusable components.  I would really like to hear that 
wicket will support this multi-window environment.  If not it looks like jquery 
which means lots of javascript and I think large amounts of javascript are 
unmanageable.



Chuck
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Re: wicket bench in eclipse

[Chuck Brinkman]

I had not heard of wicket bench before reading this email thread.  So, I
installed it and found that it doesn't play well with 'myeclipse'; not sure
where the fault lies.  So I just don't use it as a default editor.  I do
like some of the features.  If you just want to switch between java and html
use 'alt + leftarrow' and 'alt + rightarrow'.  This switches between
recently edited files.

On Wed, Jan 27, 2010 at 1:06 AM, Lionel Port  wrote:

> Agree with Huake Ingmar. The functionality doesn't overlap at all. My
> main reason for wanting the plugin to work is to switch easily between
> the html and the java code for the same component. In a maven project
> this is particular a hassle because the java code is in packages under
> /src/main/java and the html code is in packages under
> /src/main/resources. I can't really find a quick way (preferable
> single keystroke to flip between them). I also ideally want code
> completion on the wicket ids but thats secondary.
>
> regards,
> Lionel
>
> On Tue, Jan 26, 2010 at 12:48 AM, Hauke Ingmar Schmidt
>  wrote:
> > Hej,
> >
> > 2010/1/25 Peter Karich :
> >>> Is it
> >>> time to buy an IDEA license where there seems to be a quite nice
> >>> toolset for Wicket?
> >
> >> I downloaded the open source version of IntelliJ and the wicket plugin
> seems
> >> to work.
> >
> > Yes, but the free version of IDEA is lacking too much in other fields:
> > http://www.jetbrains.com/idea/features/editions_comparison_matrix.html
> > .
> >
> >> There is also a wicket plugin for NetBeans, which is working.
> >
> > Well, yes, but then it's Netbeans...
> >
> >> But a pure maven project wihtout a plugin isn't that different.
> >> Or am I missing an important feature of the eclipse plugin?
> >
> > Hm... Maven and the different Wicket IDE plugins don't intersect in
> > functionality. The plugins all try to give a little help when working
> > with Wicket components and pages, e.g. showing the wicket:ids when
> > working with the Java code to prevent hierarchy mismatch or offering
> > property model navigation as this is (still) string based.
> >
> > Eclipse plugin features:
> >
> http://www.laughingpanda.org/~inhuman/wicket-bench/docs/features-0.5.html
> > Netbeans: https://nbwicketsupport.dev.java.net/ (well, that page needs
> > a little make over...)
> > IDEA: http://code.google.com/p/wicketforge/wiki/PluginFeatures
> >
> > Hej då
> > Hauke Ingmar
> >
> > -
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> >
> >
>
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>

Re: AjaxSelfUpdatingTimerBehavior and session timeout

[Chuck Brinkman]

James,

Thanks for the information.  I wonder if those using
AjaxSelfUpdatingTimerBehavior realize that this prevents session timeout?

Chuck

On Mon, Jan 25, 2010 at 7:09 AM, James Carman
wrote:

> On Mon, Jan 25, 2010 at 4:37 AM, Chuck Brinkman 
> wrote:
> > 1)  So, if I didn't access the session in my ajax callback then the page
> > would eventually expire.  Another way to say this is if I simply had the
> > original Clock implementation on this page then the session would expire?
> >
>
> No, the ajax self updating behavior has to touch the session because
> it has to know how to get back to itself to do its work.
>
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>
>

Re: AjaxSelfUpdatingTimerBehavior and session timeout

[Chuck Brinkman]

1)  So, if I didn't access the session in my ajax callback then the page
would eventually expire.  Another way to say this is if I simply had the
original Clock implementation on this page then the session would expire?

2)  Is there an easy way of implement this countdown to expire?

On Mon, Jan 25, 2010 at 1:14 AM, Igor Vaynberg wrote:

> your behavior is always touching the session, so it will never
> timeout. using this behavior is actually a solution to preventing the
> session from ever timing out :)
>
> -igor
>
> On Sun, Jan 24, 2010 at 9:10 PM, Chuck Brinkman 
> wrote:
> > I thought it would be fun to add a 'time to session expiration' display
> to
> > my pages. So I attempted this using the AjaxSelfUpdatingTimerBehavior. I
> > just took the Clock example and hacked it as follows
> >
> >
> >  hsession = request.getHttpServletRequest().getSession();
> >
> > lastAccessTime = hsession.getLastAccessedTime();
> >
> > thisTime = *new* java.util.Date().getTime();
> >
> > elapsedTime = thisTime - lastAccessTime;
> >
> >
> >  The problem is that elapsedTime is always the duration specified when I
> > create the clock instance. So, my question is, if I have a page that uses
> > AjaxSelfUpdatingTimerBehavior and the user is displaying that page then
> his
> > session will never expire? Or am I missing something?
> >
>
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>
>

AjaxSelfUpdatingTimerBehavior and session timeout

[Chuck Brinkman]

I thought it would be fun to add a 'time to session expiration' display to
my pages. So I attempted this using the AjaxSelfUpdatingTimerBehavior. I
just took the Clock example and hacked it as follows


 hsession = request.getHttpServletRequest().getSession();

lastAccessTime = hsession.getLastAccessedTime();

thisTime = *new* java.util.Date().getTime();

elapsedTime = thisTime - lastAccessTime;


 The problem is that elapsedTime is always the duration specified when I
create the clock instance. So, my question is, if I have a page that uses
AjaxSelfUpdatingTimerBehavior and the user is displaying that page then his
session will never expire? Or am I missing something?

Re: Cannot get default invisible TextField's ModelObject ?

[Chuck Brinkman]

I looked some more and found the following:

When it works, with my modification, FormComponent.getInputAsArray tries to
get parameters for the TextField named "more:moreForm:textfield".  I looked
in the parameter map or the RequestFacade object and found these:
wicket:interface, wicket:ignoreIfNotActive, random, more:moreForm:textfield,
radioGroup and more:moreForm:submit.  And it finds the TextField.

The version that fails is looking for TextField named "more:textfield".  The
RequestFacade object has: wicket:interface, wicket:ignoreIfNotActive,
random, forma_hf_0, radioGroup and more:submit.  Is there a problem with
"forma_hf_0?



On Thu, Jan 21, 2010 at 7:35 AM, smallufo  wrote:

> Yes , indeed , if the form is in the second row (default invisible) , it
> works , But I cannot get the first row's data (such as radioGroup's model
> object will become null ).
> Moreover ,  Form with multiple row , with something visible and something
> extensible (default invisible), it is not so rare.
> If the form is not inside a ListView , it will work.
> But it just fails if it is inside a  ListView.
>
> 2010/1/21 Chuck Brinkman 
>
> > I stepped through the code and found that the convertedInput is null when
> > processing submit.  I didn't see anything that looked like an error
> message
> > from wicket.I look forward to seeing what the wicket developers have
> to
> > say.
> >
> > I'm just a new wicket user but was interested in this issue.  I also
> found
> > that if you make the following changes it will work.
> >
> >
> > **
> >  >wicket:id="textfield" />
> > > wicket:id="submit" />
> >* *
> >
> >
> >
> >
> >*Form moreForm = new Form("moreForm");
> >more.add(moreForm);*
> > final TextField textfield = new
> TextField(
> >"textfield", new Model());
> > *moreForm*.add(textfield);
> > AjaxButton button = new AjaxButton("submit") {
> >@Override
> >protected void onSubmit(AjaxRequestTarget arg0,
> Form
> > form) {
> >System.out.println("radioGroup = "
> >+ radioGroup.getModelObject()
> >+ " , textfield.getModelObject() = "
> >+ textfield.getModelObject());
> >}
> >};
> > *moreForm*.add(button);
> >
> >
> > On Wed, Jan 20, 2010 at 10:47 PM, smallufo  wrote:
> >
> > > This is a full functional Page  :
> > >
> > > I found this problem only occurs when the form is in the listView :
> > > If I move the form out of the listView , it works like a charm.
> > > Bug ? I am not sure...
> > >
> > > The link is the screen capture :
> > > http://xs.to/image-B859_4B57CDD0.gif
> > >
> > >
> > > MyPage.html
> > >
> > > 
> > >  
> > >name
> > >more ?
> > >  
> > >  
> > >
> > >  
> > >[name]
> > >
> > >  
> > >yes
> > >no
> > >  
> > >
> > >  
> > >  
> > >
> > >   > > wicket:id="textfield"/>
> > >  
> > >
> > >  
> > >
> > >  
> > > 
> > >
> > >
> > > MyPage.java
> > >
> > > package quickstart.ajax;
> > >
> > > import java.util.ArrayList;
> > > import java.util.List;
> > >
> > > import org.apache.wicket.ajax.AjaxEventBehavior;
> > > import org.apache.wicket.ajax.AjaxRequestTarget;
> > > import org.apache.wicket.ajax.markup.html.form.AjaxButton;
> > > import org.apache.wicket.markup.html.WebMarkupContainer;
> > > import org.apache.wicket.markup.html.WebPage;
> > > import org.apache.wicket.markup.html.basic.Label;
> > > import org.apache.wicket.markup.html.form.Form;
> > > import org.apache.wicket.markup.html.form.Radio;
> > > import org.apache.wicket.markup.html.fo

Re: Cannot get default invisible TextField's ModelObject ?

[Chuck Brinkman]

I stepped through the code and found that the convertedInput is null when
processing submit.  I didn't see anything that looked like an error message
from wicket.I look forward to seeing what the wicket developers have to
say.

I'm just a new wicket user but was interested in this issue.  I also found
that if you make the following changes it will work.
   

**


   * *




*Form moreForm = new Form("moreForm");
more.add(moreForm);*
final TextField textfield = new TextField(
"textfield", new Model());
*moreForm*.add(textfield);
AjaxButton button = new AjaxButton("submit") {
@Override
protected void onSubmit(AjaxRequestTarget arg0, Form
form) {
System.out.println("radioGroup = "
+ radioGroup.getModelObject()
+ " , textfield.getModelObject() = "
+ textfield.getModelObject());
}
};
*moreForm*.add(button);


On Wed, Jan 20, 2010 at 10:47 PM, smallufo  wrote:

> This is a full functional Page  :
>
> I found this problem only occurs when the form is in the listView :
> If I move the form out of the listView , it works like a charm.
> Bug ? I am not sure...
>
> The link is the screen capture :
> http://xs.to/image-B859_4B57CDD0.gif
>
>
> MyPage.html
>
> 
>  
>name
>more ?
>  
>  
>
>  
>[name]
>
>  
>yes
>no
>  
>
>  
>  
>
>   wicket:id="textfield"/>
>  
>
>  
>
>  
> 
>
>
> MyPage.java
>
> package quickstart.ajax;
>
> import java.util.ArrayList;
> import java.util.List;
>
> import org.apache.wicket.ajax.AjaxEventBehavior;
> import org.apache.wicket.ajax.AjaxRequestTarget;
> import org.apache.wicket.ajax.markup.html.form.AjaxButton;
> import org.apache.wicket.markup.html.WebMarkupContainer;
> import org.apache.wicket.markup.html.WebPage;
> import org.apache.wicket.markup.html.basic.Label;
> import org.apache.wicket.markup.html.form.Form;
> import org.apache.wicket.markup.html.form.Radio;
> import org.apache.wicket.markup.html.form.RadioGroup;
> import org.apache.wicket.markup.html.form.TextField;
> import org.apache.wicket.markup.html.list.ListItem;
> import org.apache.wicket.markup.html.list.ListView;
> import org.apache.wicket.model.Model;
>
> public class MyPage extends WebPage
> {
>  private final static List names = new ArrayList();
>  static
>  {
>names.add("Andy");
>names.add("Brian");
>names.add("Carol");
>  }
>
>  public MyPage()
>  {
>ListView listView = new ListView("listView" , names)
>{
>  @Override
>  protected void populateItem(ListItem item)
>  {
>
>Form form = new Form("form");
>item.add(form);
>
>String name = item.getModelObject();
>
>form.add(new Label("name" , name));
>
>final WebMarkupContainer more = new WebMarkupContainer("more");
>more.setVisible(false);
>more.setOutputMarkupPlaceholderTag(true);
>form.add(more);
>
>
>final RadioGroup radioGroup = new
> RadioGroup("radioGroup" , Model.of(Boolean.FALSE));
>form.add(radioGroup);
>
>Radio yes = new Radio("yes" ,
> Model.of(Boolean.TRUE));
>Radio no = new Radio("no" ,
> Model.of(Boolean.FALSE));
>radioGroup.add(yes);
>radioGroup.add(no);
>
>yes.add(new AjaxEventBehavior("onClick")
>{
>  @Override
>  protected void onEvent(AjaxRequestTarget target)
>  {
>more.setVisible(true);
>target.addComponent(more);
>  }
>});
>
>no.add(new AjaxEventBehavior("onClick")
>{
>  @Override
>  protected void onEvent(AjaxRequestTarget target)
>  {
>more.setVisible(false);
>target.addComponent(more);
>  }
>});
>
>final TextField textfield = new
> TextField("textfield" , new Model());
>more.add(textfield);
>AjaxButton button = new AjaxButton("submit")
>{
>  @Override
>  protected void onSubmit(AjaxRequestTarget arg0, Form form)
>  {
>System.out.println("radioGroup = " + radioGroup.getModelObject()
> + " , textfield.getModelObject() = " + textfield.getModelObject());
>  }
>};
>more.add(button);
>  }
>};
>add(listView);
>  }
> }
>

Thanks for wicket: it is awesome and I'm just getting to know it

[Chuck Brinkman]

Just wanted to say thanks for wicket.

I have a ListMultipleChoice and wanted to update the page based on at least
one item selected or no items selected.  It took a while for me to locate

lmc.add(new AjaxFormComponentUpdatingBehavior("onChange") {
@Override
protected void onUpdate(AjaxRequestTarget target) {
  // do the right thing here!
}
});

but once I did it just worked.  I like things that just work.  I don't know
js very well so just java and just html if real attractive to me.

Thanks again for wicket.

Chuck

Re: page expired problem issue wicket how resolve fix eofexception peekbyte

[Chuck Brinkman]

Martin,

I was not suggesting a permanent change to the framework.  Just temporary
while you debug the problem.  I got the source, did mvn install, it
generated the jar file which I then copied over to my project.  If I can do
it anyone can.  The problem isn't in wicket but in your domain object(s).
I'm out of ideas.  Maybe someone from the wicket team has a good suggestion.
Sorry :-(

Chuck

On Tue, Jan 12, 2010 at 8:42 AM, Martin Asenov  wrote:

> No, Chuck, I don't know what page is causing this. As you can see the
> thrown exception messages don't say anything particular. I think the
> messaging is poor. I face such problems in lots of frameworks, for example
> hibernate and so on. The messages are not pointing to a particular problem,
> only messing your head with unclear statements. Anyway, I don't plan to edit
> the frameworks. Do you think if not generic parameterized TextField or
> DropDownChoice for example can cause this?
>
> Thanks,
>
> -Original Message-
> From: Chuck Brinkman [mailto:chasb1...@gmail.com]
> Sent: Tuesday, January 12, 2010 2:13 PM
> To: users@wicket.apache.org
> Subject: Re: page expired problem issue wicket how resolve fix eofexception
> peekbyte
>
> Martin,
>
> I don't know a good way.
>
> Do you know what page is causing the problem?  Manually check each object
> in
> all components of the page.
>
> Once you know the page you can try removing components until the error goes
> away.  Last one removed is the offender.  There may be multiple offenders.
>
> Maybe not a good way.  Get the source for wicket and modify
> org.apache.wicket.Component.readObject(Component.java:4465) to catch the
> exception.  At this point you can either print the class of the object
> being
> read (some type of Component) or use the debugger (my preference).  You
> might have to back up to org.apache.wicket.protocol.
>
> http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.readObject(SecondLevelCacheSessionStore.java:417).
> This may be a bit of work and might not tell you anything.  The up side is
> that you now have wicket source and can debug your next problem.  I usually
> assume there will be another problem.
>
> I'm sure others reading along will have better ideas.
>
> Chuck
>
>
>
> On Tue, Jan 12, 2010 at 6:27 AM, Martin Asenov  wrote:
>
> > Hi Chuck, nice to read from you!
> >
> > Yes, this could be all true, but I can't see anywhere in the logs
> > comprehendible reports of what happens. Nothing says which is the
> > problematic object, and I can only guess. Do you now a way to trace down
> > where the problem comes from?
> >
> > Thank you!
> >
> > P.S. I'm new to Wicket too :)
> >
> > -Original Message-
> > From: Chuck Brinkman [mailto:chasb1...@gmail.com]
> > Sent: Tuesday, January 12, 2010 1:23 PM
> > To: users@wicket.apache.org
> > Subject: Re: page expired problem issue wicket how resolve fix
> eofexception
> > peekbyte
> >
> > Hi Martin,
> >
> > I'm new to wicket.  Could this have something to do with wicket trying to
> > restore a page from serialized data.  If one of the objects on your page
> > can
> > not be serialized you will get an error when wicket tries to restore the
> > page.  I think you might see this when the back button is pressed.  I
> think
> > using a detachable model is one option if you use a 3rd party object that
> > isn't serializable..  If you wrote the object you can make is
> serializable.
> > Then again I could be all wrong.
> >
> > Chuck
> >
> > On Tue, Jan 12, 2010 at 5:42 AM, Martin Asenov 
> wrote:
> >
> > > Hello, everyone! I'm currently developing a webapp and I've nearly
> > finished
> > > it. However, there's an issue that bothers me - from time to time
> wicket
> > > comes up with 'page expired' messages that piss me off. Of course, I
> have
> > to
> > > make sure such messages will not be seen by the end user. I examined
> the
> > > logs and saw the above following exception occurring many times. Could
> it
> > be
> > > the reason for all this?
> > >
> > > Thanks in advance for your help!
> > >
> > > P.S. Sorry for the subject field, but I guess it would be more useful
> > that
> > > way, since it contains many tags regarding the problem.
> > >
> > > SEVERE: Exception loading sessions from persistent storage
> > > java.io.EOFException
> > >at
> > >
> >
> java.io.ObjectInputStream$B

Re: page expired problem issue wicket how resolve fix eofexception peekbyte

[Chuck Brinkman]

Martin,

I don't know a good way.

Do you know what page is causing the problem?  Manually check each object in
all components of the page.

Once you know the page you can try removing components until the error goes
away.  Last one removed is the offender.  There may be multiple offenders.

Maybe not a good way.  Get the source for wicket and modify
org.apache.wicket.Component.readObject(Component.java:4465) to catch the
exception.  At this point you can either print the class of the object being
read (some type of Component) or use the debugger (my preference).  You
might have to back up to org.apache.wicket.protocol.
http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.readObject(SecondLevelCacheSessionStore.java:417).
This may be a bit of work and might not tell you anything.  The up side is
that you now have wicket source and can debug your next problem.  I usually
assume there will be another problem.

I'm sure others reading along will have better ideas.

Chuck



On Tue, Jan 12, 2010 at 6:27 AM, Martin Asenov  wrote:

> Hi Chuck, nice to read from you!
>
> Yes, this could be all true, but I can't see anywhere in the logs
> comprehendible reports of what happens. Nothing says which is the
> problematic object, and I can only guess. Do you now a way to trace down
> where the problem comes from?
>
> Thank you!
>
> P.S. I'm new to Wicket too :)
>
> -Original Message-
> From: Chuck Brinkman [mailto:chasb1...@gmail.com]
> Sent: Tuesday, January 12, 2010 1:23 PM
> To: users@wicket.apache.org
> Subject: Re: page expired problem issue wicket how resolve fix eofexception
> peekbyte
>
> Hi Martin,
>
> I'm new to wicket.  Could this have something to do with wicket trying to
> restore a page from serialized data.  If one of the objects on your page
> can
> not be serialized you will get an error when wicket tries to restore the
> page.  I think you might see this when the back button is pressed.  I think
> using a detachable model is one option if you use a 3rd party object that
> isn't serializable..  If you wrote the object you can make is serializable.
> Then again I could be all wrong.
>
> Chuck
>
> On Tue, Jan 12, 2010 at 5:42 AM, Martin Asenov  wrote:
>
> > Hello, everyone! I'm currently developing a webapp and I've nearly
> finished
> > it. However, there's an issue that bothers me - from time to time wicket
> > comes up with 'page expired' messages that piss me off. Of course, I have
> to
> > make sure such messages will not be seen by the end user. I examined the
> > logs and saw the above following exception occurring many times. Could it
> be
> > the reason for all this?
> >
> > Thanks in advance for your help!
> >
> > P.S. Sorry for the subject field, but I guess it would be more useful
> that
> > way, since it contains many tags regarding the problem.
> >
> > SEVERE: Exception loading sessions from persistent storage
> > java.io.EOFException
> >at
> >
> java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2554)
> >at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1297)
> >at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
> >at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
> >at
> > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
> >at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
> >at
> java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
> >at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
> >at
> > java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
> >at
> > java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
> >at org.apache.wicket.Component.readObject(Component.java:4465)
> >at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
> >at
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> >at java.lang.reflect.Method.invoke(Method.java:597)
> >at
> > java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
> >at
> > java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
> >at
> > java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
> >at
> > java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
> >at
> java.io.ObjectInputStream.readArray(Obj

Re: page expired problem issue wicket how resolve fix eofexception peekbyte

[Chuck Brinkman]

Hi Martin,

I'm new to wicket.  Could this have something to do with wicket trying to
restore a page from serialized data.  If one of the objects on your page can
not be serialized you will get an error when wicket tries to restore the
page.  I think you might see this when the back button is pressed.  I think
using a detachable model is one option if you use a 3rd party object that
isn't serializable..  If you wrote the object you can make is serializable.
Then again I could be all wrong.

Chuck

On Tue, Jan 12, 2010 at 5:42 AM, Martin Asenov  wrote:

> Hello, everyone! I'm currently developing a webapp and I've nearly finished
> it. However, there's an issue that bothers me - from time to time wicket
> comes up with 'page expired' messages that piss me off. Of course, I have to
> make sure such messages will not be seen by the end user. I examined the
> logs and saw the above following exception occurring many times. Could it be
> the reason for all this?
>
> Thanks in advance for your help!
>
> P.S. Sorry for the subject field, but I guess it would be more useful that
> way, since it contains many tags regarding the problem.
>
> SEVERE: Exception loading sessions from persistent storage
> java.io.EOFException
>at
> java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2554)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1297)
>at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
>at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
>at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
>at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
>at
> java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
>at org.apache.wicket.Component.readObject(Component.java:4465)
>at sun.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
>at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>at java.lang.reflect.Method.invoke(Method.java:597)
>at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
>at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
>at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
>at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
>at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
>at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
>at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
>at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
>at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
>at
> org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.readObject(SecondLevelCacheSessionStore.java:417)
>at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>at java.lang.reflect.Method.invoke(Method.java:597)
>at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
>at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
>at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
>at
> org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1441)
>at
> org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:942)
>at
> org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394)
>at
> org.apache

Re: about org.apache.wicket.extensions.markup.html.form.palette.Palette

[Chuck Brinkman]

Can you tell me what this means "The palette itself cannot be ajaxified
because it is a panel and therefore does not receive any javascript
events."?  Would a palette without javascript require full page loads?

On Mon, Jan 11, 2010 at 11:41 AM, Igor Vaynberg wrote:

> you can build a palette that works without javascript but the user
> experience will probably be poor
>
> -igor
>
> On Sun, Jan 10, 2010 at 11:41 PM, Chuck Brinkman 
> wrote:
> > As you can guess I'm new to wicket.  Seems very good so far.  I found
> this
> > Palette component and thought it might work well for me but I need to
> make
> > some modifications.  So I started to dig in.  I noticed that the
> component
> > uses js.  I thought wicket was just java and just html.  I do realize
> that
> > is a little but of marketing hype but could this component have been
> > implemented without any js?  I read this in the Palette.java source file:
> > The palette itself cannot be ajaxified because it is a panel and
> therefore
> > does not receive any javascript events.  I don't know what this means.
>  Does
> > this mean that the click events to move data around could not be sent to
> the
> > server?  Can this only be done using js?  Or was js selected because it
> > would be too slow otherwise?  If I just need to RTFM just say so.  I
> would
> > appreciate some insight if someone has time.  Thanks
> >
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>

about org.apache.wicket.extensions.markup.html.form.palette.Palette

[Chuck Brinkman]

As you can guess I'm new to wicket.  Seems very good so far.  I found this
Palette component and thought it might work well for me but I need to make
some modifications.  So I started to dig in.  I noticed that the component
uses js.  I thought wicket was just java and just html.  I do realize that
is a little but of marketing hype but could this component have been
implemented without any js?  I read this in the Palette.java source file:
The palette itself cannot be ajaxified because it is a panel and therefore
does not receive any javascript events.  I don't know what this means.  Does
this mean that the click events to move data around could not be sent to the
server?  Can this only be done using js?  Or was js selected because it
would be too slow otherwise?  If I just need to RTFM just say so.  I would
appreciate some insight if someone has time.  Thanks

Re: how to change BookmarkablePageLink label

[Chuck Brinkman]

Thanks,  I was thinking of the link as a single widget not a a link with a
label.  This seems to work.






if(UserHelper.get().isGuest(dis.getUser())) {
BookmarkablePageLink bpl = new
BookmarkablePageLink("logInOutLink" , Login.class);
add(bpl) ;
bpl.add(new Label("logInOutLabel", "Login"));

} else {
BookmarkablePageLink bpl = new
BookmarkablePageLink("logInOutLink" , Logout.class);
add(bpl) ;
bpl.add(new Label("logInOutLabel", "Logout"));
}

On Sat, Jan 9, 2010 at 11:31 PM, Igor Vaynberg wrote:

> give the label a model that can dynamically change the value
>
> -igor
>
> On Sat, Jan 9, 2010 at 7:46 PM, Chuck Brinkman 
> wrote:
> > I want a link that changes based on a users attribute.  As the 'linked
> to'
> > page changes I want the displayed label to reflect the change.  I have
> > created two links and am setting visibility based on the users attribute.
> > This works but I think a better solution would be to just change the
> label
> > however this doesn't seem to be easily done.  My guess is I'm just not
> > looking in the right place.  Can someone show me the way.  Thanks.
> >
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>

how to change BookmarkablePageLink label

[Chuck Brinkman]

I want a link that changes based on a users attribute.  As the 'linked to'
page changes I want the displayed label to reflect the change.  I have
created two links and am setting visibility based on the users attribute.
This works but I think a better solution would be to just change the label
however this doesn't seem to be easily done.  My guess is I'm just not
looking in the right place.  Can someone show me the way.  Thanks.

Re: how to clear validation error

[Chuck Brinkman]

The messages are kept in WebSession and WebSession has
cleanupFeedbackMessages() but this is never called.

Got it.  The session I created had a empty cleanupFeedbackMessages()
method.  Thanks for reading along.

On Fri, Jan 8, 2010 at 9:48 PM, Chuck Brinkman  wrote:

> I got the code for wicket 1.4.5 and stepped through to see what is causing
> the problem.  Form.anyFormComponentError checks all the components on the
> form to see if 1) input is required and 2) is an error message exists for
> the component.  It appears to me that once a message is set that it is never
> reset.  I don't see how this could be working for others and not working for
> me.  Any ideas?  Is there some setup or configuration I'm missing that
> causes error messages to be cleared?
>
>
> On Fri, Jan 8, 2010 at 10:51 AM, Chuck Brinkman wrote:
>
>> Thanks for your help but I don't understand.  I even got the source code
>> for
>> http://www.wicket-library.com/wicket-examples/signin/?wicket:bookmarkablePage=:org.apache.wicket.examples.signin.SignInand
>>  when I run this in my environment I have the same issue I have with my
>> code.  Once I get a validation error onSubmit is never called even after the
>> input error is fixed.  This works fine when running at
>> www.wicket-library.com.  What should I do in the onError method to
>> correct this situation?  Sorry to be so lame and thanks for your help.
>>
>
>

Re: how to clear validation error

[Chuck Brinkman]

I got the code for wicket 1.4.5 and stepped through to see what is causing
the problem.  Form.anyFormComponentError checks all the components on the
form to see if 1) input is required and 2) is an error message exists for
the component.  It appears to me that once a message is set that it is never
reset.  I don't see how this could be working for others and not working for
me.  Any ideas?  Is there some setup or configuration I'm missing that
causes error messages to be cleared?

On Fri, Jan 8, 2010 at 10:51 AM, Chuck Brinkman  wrote:

> Thanks for your help but I don't understand.  I even got the source code
> for
> http://www.wicket-library.com/wicket-examples/signin/?wicket:bookmarkablePage=:org.apache.wicket.examples.signin.SignInand
>  when I run this in my environment I have the same issue I have with my
> code.  Once I get a validation error onSubmit is never called even after the
> input error is fixed.  This works fine when running at
> www.wicket-library.com.  What should I do in the onError method to correct
> this situation?  Sorry to be so lame and thanks for your help.
>

Re: how to clear validation error

[Chuck Brinkman]

Thanks for your help but I don't understand.  I even got the source code for
http://www.wicket-library.com/wicket-examples/signin/?wicket:bookmarkablePage=:org.apache.wicket.examples.signin.SignInand
when I run this in my environment I have the same issue I have with my
code.  Once I get a validation error onSubmit is never called even after the
input error is fixed.  This works fine when running at
www.wicket-library.com.  What should I do in the onError method to correct
this situation?  Sorry to be so lame and thanks for your help.

Re: how to clear validation error

[Chuck Brinkman]

I created a simple example.  Here is my html and java.  Once I get a
validation error my onSubmit is not called.


http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>


Current Page











First Name:
  










public class Validate extends WebPage {
private static final Logger log = Logger.getLogger(Validate.class);
private String firstName;

public Validate() {
super();
init();
}

private void init() {
DisSession session = null;
session = DisSession.get();
setFirstName(session.getUser().getFirstName());

setDefaultModel(new CompoundPropertyModel(this));

Form form = new Form("validateForm") {
DisSession session = null;

@Override
protected void onSubmit() {
log.info("onSubmit called!");
}
};
add(form);

TextField firstName = new TextField("firstName");
firstName.setRequired(true);
form.add(new FormComponentFeedbackBorder("borderFirstName")
.add(firstName));

FeedbackPanel fbp = new FeedbackPanel("feedback");
add(fbp);

}

public String getFirstName() {
return firstName;
}

public void setFirstName(String firstName) {
this.firstName = firstName;
}

}

Re: how to clear validation error

[Chuck Brinkman]

maybe i left out too much code...


  



.more html omitted

  
  


or am I still missing something?

On Fri, Jan 8, 2010 at 3:10 AM, Bodis, Jerome  wrote:

> Shouldn't the FeedbackPanel be a child of the forms panel, instead of the
> form itself ? (don't know exactly = Your way the feedbackpanel gets
> submitted too)
>
> Jérôme
>
> -Original Message-
> From: Chuck Brinkman [mailto:chasb1...@gmail.com]
> Sent: Friday, January 08, 2010 9:02 AM
> To: users@wicket.apache.org
> Subject: how to clear validation error
>
> I have a form with a html submit button.  In java I wrote my own onSubmit
> to
> handle the form processing.  In the form I have a firstName field that is
> required.
>
>  First Name:
>  
>
>  
>
>
>TextField firstName = new TextField("firstName");
>firstName.setRequired(true);
>form.add(
>new FormComponentFeedbackBorder("borderFirstName").add(
>firstName ) );
>
> All works great as long as the user input is valid.  If I attempt to submit
> an empty firstName field I get the expected message in my FeedbackPanel and
> my firstName text field gets the red asterisk.  I then add a valid
> firstName
> and submit again.  The page remains showing the valid firstName input along
> with the validation errors and onSubmit does not fire.  I must be doing
> something wrong but can't figure it out.
>
> Thanks for your help.
>
> I'm using wicket 1.4.5, tomcat 6, java 1.6 and firefox 3.0.8 on fc9.
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>

how to clear validation error

[Chuck Brinkman]

I have a form with a html submit button.  In java I wrote my own onSubmit to
handle the form processing.  In the form I have a firstName field that is
required.

  First Name:
  

  


TextField firstName = new TextField("firstName");
firstName.setRequired(true);
form.add(
new FormComponentFeedbackBorder("borderFirstName").add(
firstName ) );

All works great as long as the user input is valid.  If I attempt to submit
an empty firstName field I get the expected message in my FeedbackPanel and
my firstName text field gets the red asterisk.  I then add a valid firstName
and submit again.  The page remains showing the valid firstName input along
with the validation errors and onSubmit does not fire.  I must be doing
something wrong but can't figure it out.

Thanks for your help.

I'm using wicket 1.4.5, tomcat 6, java 1.6 and firefox 3.0.8 on fc9.