Re: Button component not enabled in FireFox
Wicket: 1.4.16 FireFox:3.5.4 -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Button-component-not-enabled-in-FireFox-tp3675168p3677363.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Custom PagingNavigation Back-Button -Problem
Solved the problem. My assumption about the RequestListenerInterface was
wrong. What i am doing now:
In my page i prevent Browser Caching:
protected void configureResponse() {
super.configureResponse();
WebResponse response = getWebRequestCycle().getWebResponse();
response.setHeader(Cache-Control,
no-cache, max-age=0,must-revalidate, no-store);
response.setHeader(Expires,-1);
response.setHeader(Pragma,no-cache);
}
The problem was located in my DataProvider:
public int size() {
//That solved my problem:
if(technicalInfoRepository.countAllEntities() == 0)
technicalInfoRepository.load(, null, null, null,
null);
return filteringStrategy.getFiltered(
new LinkedList
ITechnicalInfo(technicalInfoRepository
.findAll(all(ITechnicalInfo.class.size();
}
When i clicked on the back-button my Repository was empty. No i am loading
the repository again if its size is null.
By the way:
I am using the InMemoryRepositories of the sourceforge project domian. I
am using this kind of repository because my Application solely uses Web
Services as its data source. In order to get a good compromise between
caching and the number of web service calls i'm saving a reference to the
repositories in the DataProvider or in the Page (Panel, Component,
whatever). Whenever possible i use a transient reference (but that wasn't
the problem in this case). So this is just a thin cache for user specific
data.
For data that is reusable for all users i use ehcache.
If you've got any suggestions on alternative approaches i would really
appreciate that.
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Re: Refreshing captcha image
use ajaxlink instead of ajaxsubmitlink ..
On Tue, Jul 19, 2011 at 8:37 AM, Alec Swan alecs...@gmail.com wrote:
Hello,
We have a form with some required fields and a captcha image with
CaptchaImageResource. Everything works great, but the default Wicket
captcha component displays text which is hard to read for end-users. I
added an AjaxSubmitLink(reCaptcha) button which should allow the
user to re-generate the captcha image.
However, the image does not get refreshed. The code is shown below. Is
there a problem with the code or some recommended way to allow the
end-user to regenerate captcha text?
@Override
protected void onSubmit(AjaxRequestTarget target,
Form? form) {
password = blah1;//newPassword();
CaptchaImageResource captchaImageResource = new
CaptchaImageResource(password);
NonCachingImage imgCaptcha = new
NonCachingImage(captchaImage, captchaImageResource);
imgCaptcha.setOutputMarkupId(true); // required for
AjaxFallbackLink
addOrReplace(imgCaptcha);
if (target != null) {
target.addComponent(imgCaptcha);
}
}
Thanks
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thank you,
regards,
Vineet Semwal
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[Migration 1.5]: exception handling in request cycle
Hi,
I'm trying to plug into the new request cycle processor of 1.5-RC5.1. I am
following the instructions in the wiki page, but I seem to have run into some
out-of-date info. So, according to:
https://cwiki.apache.org/WICKET/migration-to-wicket-15.html#MigrationtoWicket1.5-RequestCycle:
1) I must create a class implementing IRequestCycleListener
2) I must bind my listener during application init() with
getRequestCycleListeners().add(...);
My problem is that previously when we extended the WebRequestCycle, we would
preserve the default exception handling by using:
@Override
public Page onRuntimeException(Page page, RuntimeException e) {
return super.onRuntimeException(page, e);
}
Now, the wiki page claims that in my listener I can:
public void onException(Exception ex) { /*do nothing*/} However, the new
listener interface forces you to return a handler (IRequestHandler), it does
not
return void as claimed in the wiki. So what do I do to return something that
will tell Wicket to proceed with its default Exception handling? The actual
signature is:
public IRequestHandler onException(RequestCycle cycle, Exception ex) {
// what do I return in order not to interfere?
}
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Re: [Migration 1.5]: exception handling in request cycle
See the last point at
https://cwiki.apache.org/confluence/display/WICKET/RequestCycle+in+Wicket+1.5
Please update the wiki page after this.
The Migration wiki page has a Note point at the top that there is a
Wiki label at the bottom clicking on which will show you all pages
with info about 1.5.
It seems this note is not quite visible to the users. Ideas how to
improve that is welcome!
On Tue, Jul 19, 2011 at 12:35 PM, Alexandros Karypidis
akary...@yahoo.gr wrote:
Hi,
I'm trying to plug into the new request cycle processor of 1.5-RC5.1. I am
following the instructions in the wiki page, but I seem to have run into some
out-of-date info. So, according to:
https://cwiki.apache.org/WICKET/migration-to-wicket-15.html#MigrationtoWicket1.5-RequestCycle:
1) I must create a class implementing IRequestCycleListener
2) I must bind my listener during application init() with
getRequestCycleListeners().add(...);
My problem is that previously when we extended the WebRequestCycle, we would
preserve the default exception handling by using:
@Override
public Page onRuntimeException(Page page, RuntimeException e) {
return super.onRuntimeException(page, e);
}
Now, the wiki page claims that in my listener I can:
public void onException(Exception ex) { /*do nothing*/} However, the new
listener interface forces you to return a handler (IRequestHandler), it does
not
return void as claimed in the wiki. So what do I do to return something that
will tell Wicket to proceed with its default Exception handling? The actual
signature is:
public IRequestHandler onException(RequestCycle cycle, Exception ex) {
// what do I return in order not to interfere?
}
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--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
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Re: [Migration 1.5]: exception handling in request cycle
Ok, thx.
In terms of improving the wiki, I guess my source of confusion was that I was
reading:
https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+1.5#MigrationtoWicket1.5-RequestCycle
I fixed the signature of onException(...) and also added some comments in the
sample request listener implementation (indicating that you may return null).
Finally, I added a link to the page you directed me to in the Exception
Handling section immediately afterwards which only mentioned the exception
mapper. This should help one find that the mapper is used only in case all of
the listeners return null.
Alex.
- Original Message
From: Martin Grigorov mgrigo...@apache.org
To: users@wicket.apache.org
Sent: Tue, July 19, 2011 12:47:54 PM
Subject: Re: [Migration 1.5]: exception handling in request cycle
See the last point at
https://cwiki.apache.org/confluence/display/WICKET/RequestCycle+in+Wicket+1.5
Please update the wiki page after this.
The Migration wiki page has a Note point at the top that there is a
Wiki label at the bottom clicking on which will show you all pages
with info about 1.5.
It seems this note is not quite visible to the users. Ideas how to
improve that is welcome!
On Tue, Jul 19, 2011 at 12:35 PM, Alexandros Karypidis
akary...@yahoo.gr wrote:
Hi,
I'm trying to plug into the new request cycle processor of 1.5-RC5.1. I am
following the instructions in the wiki page, but I seem to have run into some
out-of-date info. So, according to:
https://cwiki.apache.org/WICKET/migration-to-wicket-15.html#MigrationtoWicket1.5-RequestCycle:
:
1) I must create a class implementing IRequestCycleListener
2) I must bind my listener during application init() with
getRequestCycleListeners().add(...);
My problem is that previously when we extended the WebRequestCycle, we would
preserve the default exception handling by using:
@Override
public Page onRuntimeException(Page page, RuntimeException e) {
return super.onRuntimeException(page, e);
}
Now, the wiki page claims that in my listener I can:
public void onException(Exception ex) { /*do nothing*/} However, the new
listener interface forces you to return a handler (IRequestHandler), it does
not
return void as claimed in the wiki. So what do I do to return something that
will tell Wicket to proceed with its default Exception handling? The actual
signature is:
public IRequestHandler onException(RequestCycle cycle, Exception ex) {
// what do I return in order not to interfere?
}
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--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
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How can i trace the requested urls?
Hi, i try to log the page-urls user has visited. I would like to create a log file for every session and log the traces there. My first intent to use a filter for that is not working because servlet spec only allows /* and *. for wildcards. So my url /Overview.html/param1/1/param2/2 is not matching and filter isn't called. Is wicket providing an entry point for that? Thanks Mike - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: How can i trace the requested urls?
See the web container's access log. On Tue, Jul 19, 2011 at 3:38 PM, Mike Mander wicket-m...@gmx.de wrote: Hi, i try to log the page-urls user has visited. I would like to create a log file for every session and log the traces there. My first intent to use a filter for that is not working because servlet spec only allows /* and *. for wildcards. So my url /Overview.html/param1/1/param2/2 is not matching and filter isn't called. Is wicket providing an entry point for that? Thanks Mike - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: How can i trace the requested urls?
Am 19.07.2011 14:59, schrieb Martin Grigorov: See the web container's access log. On Tue, Jul 19, 2011 at 3:38 PM, Mike Manderwicket-m...@gmx.de wrote: Hi, i try to log the page-urls user has visited. I would like to create a log file for every session and log the traces there. My first intent to use a filter for that is not working because servlet spec only allows /* and *. for wildcards. So my url /Overview.html/param1/1/param2/2 is not matching and filter isn't called. Is wicket providing an entry point for that? Thanks Mike - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org Hm i don't think that i can solve my problem by filter the access.log. At first it's hard to test the external log file. On the other i couldn't find any session grouping logs there. Do you know another place to go? While debugging i saw already the requested url. But i don't know exactly where to put my logger in. Thanks Mike - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: How can i trace the requested urls?
Did you take a look at Wicket's request logger? Martijn On Tue, Jul 19, 2011 at 3:21 PM, Mike Mander wicket-m...@gmx.de wrote: Am 19.07.2011 14:59, schrieb Martin Grigorov: See the web container's access log. On Tue, Jul 19, 2011 at 3:38 PM, Mike Manderwicket-m...@gmx.de wrote: Hi, i try to log the page-urls user has visited. I would like to create a log file for every session and log the traces there. My first intent to use a filter for that is not working because servlet spec only allows /* and *. for wildcards. So my url /Overview.html/param1/1/param2/2 is not matching and filter isn't called. Is wicket providing an entry point for that? Thanks Mike - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org Hm i don't think that i can solve my problem by filter the access.log. At first it's hard to test the external log file. On the other i couldn't find any session grouping logs there. Do you know another place to go? While debugging i saw already the requested url. But i don't know exactly where to put my logger in. Thanks Mike - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Become a Wicket expert, learn from the best: http://wicketinaction.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
FileUpload + locked PageMap
Hi, I've implemented the /org.apache.wicket.markup.html.form.upload.FileUpload /and /FileUploadField /components to upload big files ( 200MB). In the meantime of uploading the client (user browser) is not able to complete any other Ajax-Call even in another Tab (Firefox / InternetExplorer). This is a problem. But a bigger one is this Exception: org.apache.wicket.RequestCycle - org.apache.wicket.WicketRuntimeException: After 1 minute the Pagemap null is still locked which occurs, if the File is much bigger. How can i fix this problem. I think my other problem depends on it? Thanks a lot in Advance for any helpful answer. Matty -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/FileUpload-locked-PageMap-tp3678158p3678158.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Unit testing wicket
Hi Niranjan, If I add more than one test case, setUp method is called more than twice and wicket throws the exception Application name can only be set once.. You may want to take a look at http://wicketpagetest.sourceforge.net which is much easier to use. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
enable submit button obly when all fields are filled
Hi all, I wonder if there is a simple way to enable the submit button of a form only when all fields of this form are filled? Thanks to AjaxFormComponentUpdatingBehavior, I can enable my button when I fill a field, but I want enable my button only when all fields are filled and I don't know how to do that. Is there a method like AjaxFormComponentUpdatingBehavior but for entire form? thanks -- *Mathilde Pellerin* Ingénieur en développement de logiciel STATLIFE tel : 01.42.11.64.88 mail : mathilde.pelle...@statlife.fr
wicket as template engine
I know I could use freemarker, velocity or any other tool. But these tools require me to create a full blown template model up front as wicket allows for a bunch of models chained togeter pulling data from different sources when they are needed. I have a set of load of panels that create a single Page. The customer wants me to export page contents to pdf so I thought I could: 1. create a print skin for the panels 2. render the panels/page using print skin to the external html file. 3. use some html to pdf rendering tool (like flying saucer) 4. serve pdf as with content-disposition: attachment Everything is easy apart from 1). Can you advise? lg -- Leszek Gawronhttp://lgawron.posterous.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: enable submit button obly when all fields are filled
use javascript, im sure there are at least 10 jquery plugins that can do that... -igor On Tue, Jul 19, 2011 at 8:29 AM, Mathilde Pellerin mathilde.pelle...@statlife.fr wrote: Hi all, I wonder if there is a simple way to enable the submit button of a form only when all fields of this form are filled? Thanks to AjaxFormComponentUpdatingBehavior, I can enable my button when I fill a field, but I want enable my button only when all fields are filled and I don't know how to do that. Is there a method like AjaxFormComponentUpdatingBehavior but for entire form? thanks -- *Mathilde Pellerin* Ingénieur en développement de logiciel STATLIFE tel : 01.42.11.64.88 mail : mathilde.pelle...@statlife.fr - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Refreshing captcha image
That worked. Thank you Vineet!
On Tue, Jul 19, 2011 at 2:17 AM, vineet semwal
vineetsemwal1...@gmail.com wrote:
use ajaxlink instead of ajaxsubmitlink ..
On Tue, Jul 19, 2011 at 8:37 AM, Alec Swan alecs...@gmail.com wrote:
Hello,
We have a form with some required fields and a captcha image with
CaptchaImageResource. Everything works great, but the default Wicket
captcha component displays text which is hard to read for end-users. I
added an AjaxSubmitLink(reCaptcha) button which should allow the
user to re-generate the captcha image.
However, the image does not get refreshed. The code is shown below. Is
there a problem with the code or some recommended way to allow the
end-user to regenerate captcha text?
@Override
protected void onSubmit(AjaxRequestTarget target,
Form? form) {
password = blah1;//newPassword();
CaptchaImageResource captchaImageResource = new
CaptchaImageResource(password);
NonCachingImage imgCaptcha = new
NonCachingImage(captchaImage, captchaImageResource);
imgCaptcha.setOutputMarkupId(true); // required for
AjaxFallbackLink
addOrReplace(imgCaptcha);
if (target != null) {
target.addComponent(imgCaptcha);
}
}
Thanks
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thank you,
regards,
Vineet Semwal
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Issues with HeaderResponseContainerFilteringHeaderResponse
We're making our application skinable, but I'm having some trouble getting
user specified css into the right place in the header. We're working in a
distributed environment, so instead of saving their css in the file system
we're putting it in our database, and in order to get the cascade to work
properly we need to add this css after all the others. Here's how I'm
adding it:
StandardPage.java
onInitialize()
//Add any override style
Tenant tenant = MyWebSession.get().getTenant();
Css css = cssRepository.GetStyleByTenant(tenant);
if(tenant.getBranding() css != null) {
add(new Label(style, css.getStyle()));
}
}
StandardPage.html
wicket:head
style type=text/css wicket:id=style/style
/wicket:head
-
So the issue is that thet style tag comes before all my header
contributions. I've tried specifying a header response decorator like so:
Application.java
public static final String HEADER_FILTER_NAME = myHeaderBucket;
init() {
super.init();
setHeaderResponseDecorator(new IHeaderResponseDecorator() {
HeaderResponseContainerFilteringHeaderResponse.IHeaderResponseFilter[]
filters = {new CssAcceptingHeaderResponseFilter(HEADER_FILTER_NAME)};
@Override
public IHeaderResponse decorate(IHeaderResponse response) {
return new
HeaderResponseContainerFilteringHeaderResponse(response, HEADER_FILTER_NAME,
filters);
}
});
}
StandardPage.html
wicket:head
div wicket:id=myHeaderBucket/div
style type=text/css wicket:id=style/style
/wicket:head
--
Unfortunately I'm getting this exception when I instantiate a page:
12:28:04,097 INFO [STDOUT] 2011-07-19 12:28:04.096 [http-127.0.0.1-8080-1]
[127.0.0.1] [T:2] [U:3 - joe_sharp]
[com.transverse.bleep.wicket.desktop.DesktopPage] ERROR
org.apache.wicket.RequestCycle 1529 - Exception in rendering component:
[MarkupContainer [Component id = headerBucket]]
org.apache.wicket.WicketRuntimeException: Exception in rendering component:
[MarkupContainer [Component id = headerBucket]]
at org.apache.wicket.Component.renderComponent(Component.java:2729)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1539)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.Component.render(Component.java:2521)
~[wicket-1.4.17.jar:1.4.17]
...
Caused by: java.lang.RuntimeException: there was an error processing the
header response - you tried to render a bucket of response from
HeaderResponseContainerFilteringHeaderResponse, but it had not yet run and
been closed. this should occur when the header container that is standard
in wicket renders, so perhaps you have done something to keep that from
rendering?
at
org.apache.wicket.resource.filtering.HeaderResponseFilteredResponseContainer.onComponentTagBody(HeaderResponseFilteredResponseContainer.java:67)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.Component.renderComponent(Component.java:2690)
~[wicket-1.4.17.jar:1.4.17]
... 81 common frames omitted
Any ideas on what I'm doing wrong? Is there an easier approach I can take?
Thanks,
Loren
AjaxLink onclick being called twice
Has anyone had any problems using an AjaxLink where the onclick method is being called twice? I'm trying to use an AjaxLink to load a ModalWindow but the second time it's being called, the ModalWindow thinks that the window has already loaded so it returns nothing. mail2web.com What can On Demand Business Solutions do for you? http://link.mail2web.com/Business/SharePoint - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
AjaxLink onclick being called twice
Has anyone had any problems using an AjaxLink where the onclick method is being called twice? I'm trying to use an AjaxLink to load a ModalWindow but the second time it's being called, the ModalWindow thinks that the window has already loaded so it returns nothing. mail2web - Check your email from the web at http://link.mail2web.com/mail2web - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
AjaxLink onclick being called twice
Has anyone had any problems using an AjaxLink where the onclick method is being called twice? I'm trying to use an AjaxLink to load a ModalWindow but the second time it's being called, the ModalWindow thinks that the window has already loaded so it returns nothing. mail2web.com What can On Demand Business Solutions do for you? http://link.mail2web.com/Business/SharePoint - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
AjaxLink onclick being called twice
Has anyone had any problems using an AjaxLink where the onclick method is being called twice? I'm trying to use an AjaxLink to load a ModalWindow but the second time it's being called, the ModalWindow thinks that the window has already loaded so it returns nothing. mail2web.com What can On Demand Business Solutions do for you? http://link.mail2web.com/Business/SharePoint - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re-Captcha with WiQuery ButtonBehavior causes Channel busy - postponing
Hello,
We have a re-captcha button which refreshes captcha password image. It
works fine until we add WiQuery ButtonBehavior to the button. With
this behavior the captcha image is no longer refreshed and Wicked Ajax
Debugger displays INFO: Channel busy - postponing. The following is
a code snippet which describes the problem. Uncommenting add(new
ButtonBehavior()) breaks re-captcha functionality.
Please help,
Thanks
new AjaxLink(reCaptcha)
{
@Override
public void onClick(AjaxRequestTarget target) {
password = newPassword();
CaptchaImageResource captchaImageResource = new
CaptchaImageResource(password);
NonCachingImage imgCaptcha = new
NonCachingImage(captchaImage, captchaImageResource);
imgCaptcha.setOutputMarkupId(true);
SignUpForm.this.addOrReplace(imgCaptcha);
if (target != null) {
target.addComponent(imgCaptcha);
}
}
}//.add(new ButtonBehavior())
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Re: wicket as template engine
Search the mailing list archives for things like emailing pages. There have been a lot of discussions about the topic that will help you. On 2011 7 19 10:32, Leszek Gawron lgaw...@apache.org wrote: I know I could use freemarker, velocity or any other tool. But these tools require me to create a full blown template model up front as wicket allows for a bunch of models chained togeter pulling data from different sources when they are needed. I have a set of load of panels that create a single Page. The customer wants me to export page contents to pdf so I thought I could: 1. create a print skin for the panels 2. render the panels/page using print skin to the external html file. 3. use some html to pdf rendering tool (like flying saucer) 4. serve pdf as with content-disposition: attachment Everything is easy apart from 1). Can you advise? lg -- Leszek Gawron http://lgawron.posterous.com - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Button component not enabled in FireFox
Can you reproduce this issue in a quickstart project and attach it to JIRA? Wicket: 1.4.16 FireFox:3.5.4 -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Button-component-not-enabled-in-FireFox-tp3675168p3677363.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Page De-Serialization and memory
Martin,
The reason I was interested in Wicket memory usage was because
of the potential use of Scala traits, rather than the two possible
Java approaches, might be compelling when it comes to memory usage.
First, the two Java approaches: proxy/wrapper object or bundle everything
into the base class.
The proxy/wrapper approach lets one have a single implementation
that can be share by multiple classes. The down side is that
proxy/wrapper object requires an additional reference in the
class using it and hence additional memory usage.
The bundle everything into the base class approach violates
OOP 101 dictum about having small objects focused on their
own particular behavior thus avoiding bloat.
(Not executable Java/Scala code below.)
interface Parent {
getParent
setParent
}
// Potentially shared implementation
class ParentProxy implements Parent {
parent
getParent = parent
setParent(parent) = this.parent = parent
}
// Issue: Has additional instance variable: parentProxy
class CompWithProxy with Parent {
parentProxy = new ParentProxy
getParent = parentProxy.getParent
setParent(parent) = parentProxy.setParent(parent)
}
// Issue: Does not share implementation
class CompAllInOne with Parent {
parent
getParent = parent
setParent(parent) = this.parent = parent
}
Wicket has taken the bundle everything into base class in order
to lessen memory usage - a certainly reasonable Java approach
to the problem.
With Scala one can do the following:
// Shared implementation
trait ParentTrait {
parent
getParent = parent
setParent(parent) = this.parent = parent
}
// Uses implementation
class Comp with ParentTrait
The implementation, ParentTrait, can be used by any
number of classes.
In addition, one can add to a base class any number of
such implementation traits sharing multiple implementations
across multiple classes.
So, can using such approach result in smaller (less in-memory)
object in Scala than in Java?
The ParentTrait does not really save very much. I assume
that its only the Page class and sub-classes that do not have
parent components in Wicket, so the savings per Page component
tree is very small indeed. But, there are other behaviors that
can be converted to traits, for example, Models.
Many of the instance variables in the Java Models which
take memory can be converted to methods return values which only
add to the size of the class, not to every instance of the class.
Also, with Model traits that use Component self-types, one can
do away with IComponentAssignedModel wrapping and such.
So, how to demonstrate such memory differences. I created
stripped down versions of the Component and Label classes in
both Java and Scala (only ids and Models) .
Created different Model usage scenarios
with Model object in Java and Traits in Scala, and, finally,
serialized (Java Serialization) the result comparing the size
of the resulting array of bytes. There are two runs, one with
all Strings being the empty string and the next where all
strings are 10-character strings:
The Java versions (empty string):
Label.Empty 99
Label.ReadOnly 196
Label.ReadWrite 159
Label.Resource 333
Label.Property 223
Label.ComponentProperty 351
Label.CompoundProperty 208
The Scala versions (empty string):
Label.Empty 79
Label.ReadOnly 131
Label.ReadWrite 150
Label.Resource 164
Label.Property 207
Label.ComponentProperty 134
Label.CompoundProperty 184
The Java versions (10-character strings):
Label.Empty 109
Label.ReadOnly 214
Label.ReadWrite 177
Label.Resource 359
Label.Property 241
Label.ComponentProperty 369
Label.CompoundProperty 218
The Scala versions (10-character strings):
Label.Empty 89
Label.ReadOnly 149
Label.ReadWrite 168
Label.Resource 190
Label.Property 225
Label.ComponentProperty 152
Label.CompoundProperty 194
[Note that the Java Label.Empty result is misleading since in Wicket
there is no memory overhead when a Component has no Model.]
While this does indicate that using Model traits with Scala
will result in less memory usage than the comparable Java
approach, Java Serialization adds a whole lot of extra stuff
to the array of bytes that masks the true change in
in-memory usage. With Java Serialization, the class descriptor
for each instance serialized is also added to the byte array and,
it is this, that takes up most of the array of bytes.
Thinking about it, I realized that Java Serialization is rather
a blunt tool when it comes to the requirement of (Scala) Wicket
Page serialization. Java Serialization creates a byte array
that is rather self-contained/self-descriptive in its content.
This is not required for (Scala) Wicket which has very
specific requirements and use-cases.
But first, before I describe what I did, here are the results.
The byte array size data
Re: AjaxLink onclick being called twice
So you click the link and the modal displays, you dismiss the modal, click the link again and nothing happens? Is the behavior consistent across browsers? -Clint On Tue, Jul 19, 2011 at 4:18 PM, wic...@geofflancaster.com wic...@geofflancaster.com wrote: Has anyone had any problems using an AjaxLink where the onclick method is being called twice? I'm trying to use an AjaxLink to load a ModalWindow but the second time it's being called, the ModalWindow thinks that the window has already loaded so it returns nothing. mail2web.com – What can On Demand Business Solutions do for you? http://link.mail2web.com/Business/SharePoint - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Issues with HeaderResponseContainerFilteringHeaderResponse
To start, don't use a Label to contribute css. Use a header contributor.
That's what they're made for.
On 2011 7 19 13:22, Loren Cole loren.c...@gmail.com wrote:
We're making our application skinable, but I'm having some trouble getting
user specified css into the right place in the header. We're working in a
distributed environment, so instead of saving their css in the file system
we're putting it in our database, and in order to get the cascade to work
properly we need to add this css after all the others. Here's how I'm
adding it:
StandardPage.java
onInitialize()
//Add any override style
Tenant tenant = MyWebSession.get().getTenant();
Css css = cssRepository.GetStyleByTenant(tenant);
if(tenant.getBranding() css != null) {
add(new Label(style, css.getStyle()));
}
}
StandardPage.html
wicket:head
style type=text/css wicket:id=style/style
/wicket:head
-
So the issue is that thet style tag comes before all my header
contributions. I've tried specifying a header response decorator like so:
Application.java
public static final String HEADER_FILTER_NAME = myHeaderBucket;
init() {
super.init();
setHeaderResponseDecorator(new IHeaderResponseDecorator() {
HeaderResponseContainerFilteringHeaderResponse.IHeaderResponseFilter[]
filters = {new CssAcceptingHeaderResponseFilter(HEADER_FILTER_NAME)};
@Override
public IHeaderResponse decorate(IHeaderResponse response) {
return new
HeaderResponseContainerFilteringHeaderResponse(response,
HEADER_FILTER_NAME,
filters);
}
});
}
StandardPage.html
wicket:head
div wicket:id=myHeaderBucket/div
style type=text/css wicket:id=style/style
/wicket:head
--
Unfortunately I'm getting this exception when I instantiate a page:
12:28:04,097 INFO [STDOUT] 2011-07-19 12:28:04.096 [http-127.0.0.1-8080-1]
[127.0.0.1] [T:2] [U:3 - joe_sharp]
[com.transverse.bleep.wicket.desktop.DesktopPage] ERROR
org.apache.wicket.RequestCycle 1529 - Exception in rendering component:
[MarkupContainer [Component id = headerBucket]]
org.apache.wicket.WicketRuntimeException: Exception in rendering
component:
[MarkupContainer [Component id = headerBucket]]
at org.apache.wicket.Component.renderComponent(Component.java:2729)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1539)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.Component.render(Component.java:2521)
~[wicket-1.4.17.jar:1.4.17]
...
Caused by: java.lang.RuntimeException: there was an error processing the
header response - you tried to render a bucket of response from
HeaderResponseContainerFilteringHeaderResponse, but it had not yet run and
been closed. this should occur when the header container that is standard
in wicket renders, so perhaps you have done something to keep that from
rendering?
at
org.apache.wicket.resource.filtering.HeaderResponseFilteredResponseContainer.onComponentTagBody(HeaderResponseFilteredResponseContainer.java:67)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.Component.renderComponent(Component.java:2690)
~[wicket-1.4.17.jar:1.4.17]
... 81 common frames omitted
Any ideas on what I'm doing wrong? Is there an easier approach I can take?
Thanks,
Loren
Re: FileUpload + locked PageMap
Am i the first one who wants to use the FileUpload Components for uploading big files? i doubt this ;) -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/FileUpload-locked-PageMap-tp3678158p3680039.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
