Re: [Wicket-user] working with plugins
Yes that was the idea.. That you have to delegate there through all your classloaders.I implemented your change by first using the objects classloader.. then fall back to what we did now.So that should help your case. When a page (by total) comes from one plugin/package
The only problem is when a page or component that is cloned is a mix of plugins.. Then it won't work and you will need toimplement the IClassResolver so that you iterate over it.But i think i can fix that also.. so that nobody has to worry anymore for classloaders when cloning (model or object)
I just record all the classloaders that are used for all the objects that are cloned for one request in the outputstream (use the replaceObject method)Then i use those classloaders myself for t he resolving in the inputstream.. (resolveClass method)
That should always work i believe or am i missing something??johanOn 7/17/06, Ittay Dror [EMAIL PROTECTED]
wrote:if the deserialization uses it, then maybe (i'm not sure how it is used). but in our case, every Page subclass may be in its own class loader, separate from others, so using a singleton IClassResolver instance will not help (unless it delegates to all class loaders, which may cause havoc). i think that my proposed solution is straight forward.
Igor Vaynberg wrote: we do have IClassResolver woudnt that help? it helped with osgi -Igor On 7/17/06, *Ittay Dror* [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote: done. the request id is 1524019. i've added more description of the problem and the solution. i think
this may happen also with osgi integration, or any other case where an object is used that is found through a classloader different than the one wicket / tomcat is in. Eelco Hillenius wrote:
I'm afraid I don't get the request. Could you please create a feature request with a patch, clearly explaining what is wrong today and what your patch fixes?
Thanks, Eelco On 7/17/06, Ittay Dror [EMAIL PROTECTED] mailto:
[EMAIL PROTECTED] wrote: Hi, We're using plugins similar to Eclipse's to decouple functionality. Each plugin's classes run in their own class loader.
We've encountered a problem in onNewBrowserWindow(). it uses Objects.cloneObject(), which uses the default ObjectInputStream, that uses the class loader associated with the execution stack,
rather than the object's. so trying to get the class of the object when reading it back fails. This can be solved by changing cloneObject to: public static Object cloneObject(final Object object)
{if (object == null){return null;}else
{try{final ByteArrayOutputStream out = new ByteArrayOutputStream(256);ObjectOutputStream oos = new
ObjectOutputStream(out);oos.writeObject(object);ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(out
.toByteArray())) { protected Class resolveClass(ObjectStreamClass desc) throws IOException,ClassNotFoundException {
String className = desc.getName();return Class.forName(className, true, object.getClass().getClassLoader()); }
};return ois.readObject();}catch (ClassNotFoundException e){
throw new WicketRuntimeException(Internal error cloning object, e);}catch (IOException e)
{throw new WicketRuntimeException(Internal error cloning object, e);}}
} i think that it should work fine in this context since the object is already accessible when writing it. it is working for us.
btw, a problem that is caused by this failure (and the throwing of WicketRuntimeException) is that the PageMap contains null entries (or rather, the session contains attributes with null values). i
couldn't track why exactly this happens. regards, ittay --
=== Ittay Dror, Chief architect, openQRM TL, RD, Qlusters Inc.
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] +972-3-6081994 Fax: +972-3-6081841
http://www.openQRM.org - Keeps your Data-Center Up and Running -
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[Wicket-user] Wicket search engine
Hey all Wicket lovers! The last week or so, I have been working on a Wicket resource search engine. It is a little application which indexes Wicket related sites for a more dedicated search: http://woogle.billen.dk/ It started of as a simple research project of Lucene Nutch[1], but I quickly started using it my self for finding help on different Wicket subjects. After some positive feedback on IRC, I decided to make it public. SO now the source is ASL2 and available from my local SF installation[2]. The state of the application is of course still beta. Not the Wicket application; I think it fairly much do what it's supposed to. But the indexed material only count the sites listed in the FAQ[3], and not all the great blog entries etc. all around. The problem is that I haven't figured out the best way to index the blog entries without getting all the private/off-topic entries as well. If anyone has any ideas please write me (or reply to this). Regards Frank Bille [1]: http://lucene.apache.org/nutch [2]: http://sf.billen.dk/sf/projects/woogle [3]: http://woogle.billen.dk/search/faq - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Problem response page using AjaxFormSubmitBehavior
Igor you right when you say that generally is a contradiction having a page redirection on a ajax request but in the case of AjaxFormSubmitBehavior the request is to submit data, and common semantic for submit is save data and proceed with next page in the flow.
Anyway I want to be more detailed about my use case: I have a complex form with a lot of fields with cross validation rules (some fields validation depends from other fields value). It's very common that users make a mistake filling out the form so I would avoid to have complete page render each time the user try to submit data. Only If there are no error on page I will go to the next page in the application flow.
So AjaxFormSubmitBehavior is perfect for this use case. In onSubmit(target) method I check for any validation error, if any exists I will notify user about that with a _javascript_ alert /
target.addJavascript(alert('..')) /.If validation pass the form onSubmit will execute storing submitted data and proceeding to to next page /
setResponsePage / . I was a bit surprised to see that setResponsePage
was not working in conjunction an AjaxFormSubmitBehavior request. I think Eelco proposal to make AjaxRequestTarget translating page redirect to
window.location is good idea. In this way setResponsePage semantic will be more uniform with both plain and ajax submit.Thanks. - PaoloBut in my case, I'm using
AjaxFormSubmitBehavior
to validate and saving user data . On 7/21/06, Eelco Hillenius
[EMAIL PROTECTED] wrote:
I don't know whether it is that uncommon. Now that I think of it, Ican think of a few use cases, certainly when you want to handle
exceptional situations.But Paolo, please tell us more about your use case. Are you sure youwant to redirect to a page there?EelcoOn 7/21/06, Igor Vaynberg
[EMAIL PROTECTED] wrote: sure, we could add a utility method. but think about what you are doing - you want to redirect a browser from an /ajax/ request. this is not a common usecase i dont think. the whole point of ajax is to work on the same page
and avoid the redirects :) -Igor On 7/21/06, Eelco Hillenius
[EMAIL PROTECTED] wrote: Could we make AjaxRequestTarget a bit smarter so that it would have a
setResponsePage method that translates to window.location= instead of the redirect we do for normal requests? EelcoOn 7/21/06, Igor Vaynberg
[EMAIL PROTECTED] wrote: target.addJavascript
(window.location='+RequstCycle.get().urlFor(null, MyPage.class)+';);
you can only redirect to a class not an instance so you will have to pass params using PageParameters. maybe we should add urlFor(Page) to request cycle
-Igor On 7/21/06, Paolo Di Tommaso
[EMAIL PROTECTED]
wrote:I'm getting a bit confused how to redirect to a new page after a form submission using AjaxFormSubmitBehavior.
I use the onSubmit method of AjaxFormSubmitBehavior component to notify user for special message, for example:buttonSave.add( new AjaxFormSubmitBehavior ( form, onclick ) {
protected void onSubmit(AjaxRequestTarget target) { if( !getFeedbackMessages().isEmpty() ) { target.addJavascript( alert('Validation failed') );
} } }); and the form onSubmit to save data and redirect to the next page: form = new Form(form1) {
void onSubmit() {if( findSubmittingButton() == buttonSave ) {dao.save( object ); setResponsePage(
NextPage.class ); } } }; The problem is that in this way I will get the response page as response content of the Ajax call!
How to redirect to another page using AjaxFormSubmitBehavior? Thanks for helping. - Paolo
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[Wicket-user] Any example for dynamically loading very big tree?
Hi, Is there any example for dynamically loading very big tree? The nested example given in wicket-examples is fully populated before tree is rendered.Regards,Rice - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Any example for dynamically loading very big tree?
You should be able to just append nodes to your model. The tree model should fire events to the tree so that it knows it should re-render (or better: re-evaluate its model). Eelco On 7/22/06, Rice Yeh [EMAIL PROTECTED] wrote: Hi, Is there any example for dynamically loading very big tree? The nested example given in wicket-examples is fully populated before tree is rendered. Regards, Rice - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Wicket search engine
I am an absolut begginer to Wicket, but in RuyCorner.com (which is a Blog Directory and not a Vertical Search engine) people suscribe and register their blogs, and we try to enforce that people use their Ruby/Rails specific feeds that most CMS can provide without a problem. Just an idea... -- Aníbal Rojas http://www.rubycorner.com http://www.vp.com.ve/contact-us http://www.lacaraoscura.com On 7/22/06, Frank Bille Jensen [EMAIL PROTECTED] wrote: Hey all Wicket lovers! The last week or so, I have been working on a Wicket resource search engine. It is a little application which indexes Wicket related sites for a more dedicated search: http://woogle.billen.dk/ It started of as a simple research project of Lucene Nutch[1], but I quickly started using it my self for finding help on different Wicket subjects. After some positive feedback on IRC, I decided to make it public. SO now the source is ASL2 and available from my local SF installation[2]. The state of the application is of course still beta. Not the Wicket application; I think it fairly much do what it's supposed to. But the indexed material only count the sites listed in the FAQ[3], and not all the great blog entries etc. all around. The problem is that I haven't figured out the best way to index the blog entries without getting all the private/off-topic entries as well. If anyone has any ideas please write me (or reply to this). Regards Frank Bille [1]: http://lucene.apache.org/nutch [2]: http://sf.billen.dk/sf/projects/woogle [3]: http://woogle.billen.dk/search/faq - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
[Wicket-user] Wicket in Action?
Hi All! I wonder where Wicket in Action stands now? is there a way we can have early access to the chapters? I would love to have something released periodically than wait for the whole thing :) -- Regards, Ali - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
[Wicket-user] Adding items to GridView using AJAX
What is the best way to addnew items to GridView using AJAX? The best way I can think of is to put GridView on a container( panel for example) and then update the panel using AJAX. But using this way the whole table repaints. I can't find a way to repaint only affected cells. For example : grid has 1 column and 10 rows and there is only 5 cells filled. If user adds anew item I would be nice if it is possible just to draw item at row 6, not to repaint the whole table. -- Regards,Predrag Spasojevic - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
[Wicket-user] Absolut newbiwe questions for a secure, data centric application
Hello, I am considering Wicket to start a new project, I have been digging into some other projects like Grails, Rife, Roma, Sails and Menta. My background comes from Turbine, Torque and lately Spring (still sick of the hell of XML configuration fles ;-) My new project is a small dashboard like app, with heavy use of JFree charts or something alike. I suppose I will end writing some kind of comonent to make this charting stuff reusable, or has anybody solved this yet? This application is data centric, and I am not quite sure of how should I focus persistence. The main site of Wicket lacks any example related to Hibernate, or any other persistence framework. The references found in the Wiki are no relevant. There is a DataBinder proyect that show little activity but looks fine in setting up the required infraestructure for persistence using Hibernate. Wickett Stuff list a Hibernate components but there is no informations about this subproject, and there is Qwicket, that integrates HIbernate. It would be great to ear about your experiences and recomendatios regarding the implementation of persistence in a Wickett app. This application would require user to get authenticated, and some simple role administration. It looks like there is some authentication components in Wicket Stuff and checking the sources of Qwicket it looks like it solves persistence throung Hibernate with all the basic security infraestructure. Quicket looks like a youg and active project, resolving the commong infraestructure issues I am looking for, has anybody experimented with it? Off course the application will need some CRUD, there is a CRUD example at: http://www.learntechnology.net/wicket-crud.do I am not sure if it is a good starting place. Or if I should try Wicket Rapid Application Development Panels? I am sorry for such many questions, but starting with a new framework is always the difficult point of build a application. Any help, suggestion or guidance will be higly appreciated. Best regards -- Aníbal Rojas - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] working with plugins
yeah i think that should do it. you think it will have a noticable
impact on the size of our cloned objects? maybe output null if the
object's classloader is the same as our default one to save on space.
-Igor
On 7/22/06, Johan Compagner [EMAIL PROTECTED] wrote:
Yes that was the idea.. That you have to delegate there through all your classloaders.I implemented your change by first using the objects classloader.. then fall back to what we did now.So that should help your case. When a page (by total) comes from one plugin/package
The only problem is when a page or component that is cloned is a mix of plugins.. Then it won't work and you will need toimplement the IClassResolver so that you iterate over it.But i think i can fix that also.. so that nobody has to worry anymore for classloaders when cloning (model or object)
I just record all the classloaders that are used for all the
objects that are cloned for one request in the outputstream (use the
replaceObject method)Then i use those classloaders myself for t he resolving in the inputstream.. (resolveClass method)
That should always work i believe or am i missing something??johanOn 7/17/06,
Ittay Dror [EMAIL PROTECTED]
wrote:if
the deserialization uses it, then maybe (i'm not sure how it is used).
but in our case, every Page subclass may be in its own class loader,
separate from others, so using a singleton IClassResolver instance will
not help (unless it delegates to all class loaders, which may cause
havoc). i think that my proposed solution is straight forward.
Igor Vaynberg wrote: we do have IClassResolver woudnt that help? it helped with osgi -Igor On 7/17/06, *Ittay Dror*
[EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote: done. the request id is 1524019.
i've added more description of the problem and the solution. i think
this may happen also with osgi integration, or any other case where an object is used that is found through a classloader different than the one wicket / tomcat is in. Eelco Hillenius wrote:
I'm afraid I don't get the request. Could you please create a feature request with a patch, clearly explaining what is wrong today and what your patch fixes?
Thanks, Eelco On 7/17/06, Ittay Dror
[EMAIL PROTECTED] mailto:
[EMAIL PROTECTED] wrote: Hi,
We're using plugins similar to Eclipse's to decouple functionality. Each plugin's classes run in their own class loader.
We've encountered a problem in onNewBrowserWindow(). it uses Objects.cloneObject(), which uses the default ObjectInputStream, that uses the class loader associated with the execution stack,
rather than the object's. so trying to get the class of the object when reading it back fails. This can be solved by changing cloneObject to: public static Object cloneObject(final Object object)
{if (object == null){return
null;}else
{try{final
ByteArrayOutputStream out = new ByteArrayOutputStream(256);ObjectOutputStream oos = new
ObjectOutputStream(out);oos.writeObject(object);ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(out
.toByteArray())) { protected Class resolveClass(ObjectStreamClass desc) throws IOException,ClassNotFoundException {
String className = desc.getName();return Class.forName(className, true, object.getClass().getClassLoader()); }
};return
ois.readObject();}catch
(ClassNotFoundException e){
throw
new WicketRuntimeException(Internal error cloning object, e);}catch
(IOException e)
{throw
new WicketRuntimeException(Internal error cloning object, e);}}
} i think that it should work fine in this context since the object is already accessible when writing it. it is working for us.
btw, a problem that is caused by this failure (and the throwing of WicketRuntimeException) is that the PageMap contains null entries (or rather, the session contains attributes with null values). i
couldn't track why exactly this happens. regards, ittay --
=== Ittay Dror, Chief architect, openQRM TL, RD, Qlusters Inc.
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] +972-3-6081994 Fax: +972-3-6081841
http://www.openQRM.org - Keeps your Data-Center Up and Running -
Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier
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Re: [Wicket-user] Wicket search engine
what i want to know is why that version of sf.net is soo much better looking then the crap on sf.net? -Igor On 7/22/06, Aníbal Rojas [EMAIL PROTECTED] wrote: I am an absolut begginer to Wicket, but in RuyCorner.com (which is aBlog Directory and not a Vertical Search engine) people suscribe andregister their blogs,and we try to enforce that people use theirRuby/Rails specific feeds that most CMS can provide without a problem. Just an idea...--Aníbal Rojashttp://www.rubycorner.comhttp://www.vp.com.ve/contact-us http://www.lacaraoscura.comOn 7/22/06, Frank Bille Jensen [EMAIL PROTECTED] wrote: Hey all Wicket lovers! The last week or so, I have been working on a Wicket resource search engine. It is a little application which indexes Wicket related sites for a more dedicated search: http://woogle.billen.dk/ It started of as a simple research project of Lucene Nutch[1], but I quickly started using it my self for finding help on different Wicket subjects. After some positive feedback on IRC, I decided to make it public. SO now the source is ASL2 and available from my local SF installation[2]. The state of the application is of course still beta. Not the Wicket application; I think it fairly much do what it's supposed to. But the indexed material only count the sites listed in the FAQ[3], and not all the great blog entries etc. all around. The problem is that I haven't figured out the best way to index the blog entries without getting all the private/off-topic entries as well. If anyone has any ideas please write me (or reply to this). Regards Frank Bille [1]: http://lucene.apache.org/nutch [2]: http://sf.billen.dk/sf/projects/woogle [3]: http://woogle.billen.dk/search/faq - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user -Take Surveys. Earn Cash. Influence the Future of ITJoin SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cashhttp://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___Wicket-user mailing listWicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Adding items to GridView using AJAX
but what happens if you have a row filled and the user adds another item, then you need to create an entire new row w/out repainting the rest. the gridview wasnt designed with ajax in mind, so i see two situations - rewrite gridview with ajax sutt in mind or create a separate ajax grid view that can do all this. -Igor On 7/22/06, Predrag Spasojevic [EMAIL PROTECTED] wrote: What is the best way to addnew items to GridView using AJAX? The best way I can think of is to put GridView on a container( panel for example) and then update the panel using AJAX. But using this way the whole table repaints. I can't find a way to repaint only affected cells. For example : grid has 1 column and 10 rows and there is only 5 cells filled. If user adds anew item I would be nice if it is possible just to draw item at row 6, not to repaint the whole table. -- Regards,Predrag Spasojevic -Take Surveys. Earn Cash. Influence the Future of ITJoin SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___Wicket-user mailing list Wicket-user@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/wicket-user - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] working with plugins
it won't impact the size of the cloned objects at allIt is just a list (or better set) of classloaders thats is registered and hold on to for only that cloneXXX methodnothing more. So the only thing that will be generated and discarded quickly is a List or Set holding the Classloaders.
johanOn 7/22/06, Igor Vaynberg [EMAIL PROTECTED] wrote:
yeah i think that should do it. you think it will have a noticable
impact on the size of our cloned objects? maybe output null if the
object's classloader is the same as our default one to save on space.
-Igor
On 7/22/06, Johan Compagner
[EMAIL PROTECTED] wrote:
Yes that was the idea.. That you have to delegate there through all your classloaders.I implemented your change by first using the objects classloader.. then fall back to what we did now.So that should help your case. When a page (by total) comes from one plugin/package
The only problem is when a page or component that is cloned is a mix of plugins.. Then it won't work and you will need toimplement the IClassResolver so that you iterate over it.But i think i can fix that also.. so that nobody has to worry anymore for classloaders when cloning (model or object)
I just record all the classloaders that are used for all the
objects that are cloned for one request in the outputstream (use the
replaceObject method)Then i use those classloaders myself for t he resolving in the inputstream.. (resolveClass method)
That should always work i believe or am i missing something??johanOn 7/17/06,
Ittay Dror [EMAIL PROTECTED]
wrote:if
the deserialization uses it, then maybe (i'm not sure how it is used).
but in our case, every Page subclass may be in its own class loader,
separate from others, so using a singleton IClassResolver instance will
not help (unless it delegates to all class loaders, which may cause
havoc). i think that my proposed solution is straight forward.
Igor Vaynberg wrote: we do have IClassResolver woudnt that help? it helped with osgi -Igor On 7/17/06, *Ittay Dror*
[EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
done. the request id is 1524019.
i've added more description of the problem and the solution. i think
this may happen also with osgi integration, or any other case where an object is used that is found through a classloader different than the one wicket / tomcat is in. Eelco Hillenius wrote:
I'm afraid I don't get the request. Could you please create a feature request with a patch, clearly explaining what is wrong today and what your patch fixes?
Thanks, Eelco On 7/17/06, Ittay Dror
[EMAIL PROTECTED] mailto:
[EMAIL PROTECTED] wrote: Hi,
We're using plugins similar to Eclipse's to decouple functionality. Each plugin's classes run in their own class loader.
We've encountered a problem in onNewBrowserWindow(). it uses Objects.cloneObject(), which uses the default ObjectInputStream, that uses the class loader associated with the execution stack,
rather than the object's. so trying to get the class of the object when reading it back fails. This can be solved by changing cloneObject to: public static Object cloneObject(final Object object)
{if (object == null){return
null;}else
{try{final
ByteArrayOutputStream out = new ByteArrayOutputStream(256);ObjectOutputStream oos = new
ObjectOutputStream(out);oos.writeObject(object);ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(out
.toByteArray())) { protected Class resolveClass(ObjectStreamClass desc) throws IOException,ClassNotFoundException {
String className = desc.getName();return Class.forName(className, true, object.getClass().getClassLoader()); }
};return
ois.readObject();}catch
(ClassNotFoundException e){
throw
new WicketRuntimeException(Internal error cloning object, e);}catch
(IOException e)
{throw
new WicketRuntimeException(Internal error cloning object, e);}}
} i think that it should work fine in this context since the object is already accessible when writing it. it is working for us.
btw, a problem that is caused by this failure (and the throwing of WicketRuntimeException) is that the PageMap contains null entries (or rather, the session contains attributes with null values). i
couldn't track why exactly this happens. regards, ittay --
=== Ittay Dror, Chief architect, openQRM TL, RD, Qlusters Inc.
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]
+972-3-6081994 Fax: +972-3-6081841
http://www.openQRM.org - Keeps your Data-Center Up and Running -
Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642
http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642
___ Wicket-user mailing list
Re: [Wicket-user] Absolut newbiwe questions for a secure, data centric application
there is a wicket+spring+hibernate example in wicket-stuff called wicket-phonebook. also google qwicket, it will generate a wicket+spring+hibernate skeleton for you. also search the list for jfreechart, there have been a couple of components made for charting alraedy. -Igor On 7/22/06, Aníbal Rojas [EMAIL PROTECTED] wrote: Hello,I am considering Wicket to start a new project, I have beendigging into some other projects like Grails, Rife, Roma, Sails andMenta. My background comes from Turbine, Torque and lately Spring (still sick of the hell of XML configuration fles ;-)My new project is a small dashboard like app, with heavy use ofJFree charts or something alike. I suppose I will end writing somekind of comonent to make this charting stuff reusable, or has anybody solved this yet?This application is data centric, and I am not quite sure of howshould I focus persistence. The main site of Wicket lacks any examplerelated to Hibernate, or any other persistence framework. The references found in the Wiki are no relevant.There is a DataBinder proyect that show little activity but looksfine in setting up the required infraestructure for persistence usingHibernate. Wickett Stuff list a Hibernate components but there is no informations about this subproject, and there is Qwicket, thatintegrates HIbernate. It would be great to ear about your experiencesand recomendatios regarding the implementation of persistence in aWickett app. This application would require user to get authenticated, and somesimple role administration. It looks like there is some authenticationcomponents in Wicket Stuff and checking the sources of Qwicket it looks like it solves persistence throung Hibernate with all the basicsecurity infraestructure. Quicket looks like a youg and activeproject, resolving the commong infraestructure issues I am lookingfor, has anybody experimented with it? Off course the application will need some CRUD, there is a CRUD example at:http://www.learntechnology.net/wicket-crud.doI am not sure if it is a good starting place. Or if I should try Wicket Rapid Application Development Panels?I am sorry for such many questions, but starting with a newframework is always the difficult point of build a application. Anyhelp, suggestion or guidance will be higly appreciated. Best regards--Aníbal Rojas-Take Surveys. Earn Cash. Influence the Future of ITJoin SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cashhttp://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___Wicket-user mailing listWicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] working with plugins
ah, i see. you are just registering them. i thought you were going to
include it into the cloed object itself. i think we still need to keep
the record of what the object's classloader was in case there are
objects with the same name in more then one classloader. so maybe as
you build up this list of classloaders you save the index with the
cloned object.
-Igor
On 7/22/06, Johan Compagner [EMAIL PROTECTED] wrote:
it won't impact the size of the cloned objects at allIt is just a list (or better set) of classloaders thats is registered and hold on to for only that cloneXXX methodnothing more. So the only thing that will be generated and discarded quickly is a List or Set holding the Classloaders.
johanOn 7/22/06, Igor Vaynberg
[EMAIL PROTECTED] wrote:
yeah i think that should do it. you think it will have a noticable
impact on the size of our cloned objects? maybe output null if the
object's classloader is the same as our default one to save on space.
-Igor
On 7/22/06, Johan Compagner
[EMAIL PROTECTED] wrote:
Yes that was the idea.. That you have to delegate there through all your classloaders.I implemented your change by first using the objects classloader.. then fall back to what we did now.So that should help your case. When a page (by total) comes from one plugin/package
The only problem is when a page or component that is cloned is a mix of plugins.. Then it won't work and you will need toimplement the IClassResolver so that you iterate over it.But i think i can fix that also.. so that nobody has to worry anymore for classloaders when cloning (model or object)
I just record all the classloaders that are used for all the
objects that are cloned for one request in the outputstream (use the
replaceObject method)Then i use those classloaders myself for t he resolving in the inputstream.. (resolveClass method)
That should always work i believe or am i missing something??johanOn 7/17/06,
Ittay Dror
[EMAIL PROTECTED]
wrote:if
the deserialization uses it, then maybe (i'm not sure how it is used).
but in our case, every Page subclass may be in its own class loader,
separate from others, so using a singleton IClassResolver instance will
not help (unless it delegates to all class loaders, which may cause
havoc). i think that my proposed solution is straight forward.
Igor Vaynberg wrote: we do have IClassResolver woudnt that help? it helped with osgi -Igor On 7/17/06, *Ittay Dror*
[EMAIL PROTECTED]
mailto:
[EMAIL PROTECTED] wrote:
done. the request id is 1524019.
i've added more description of the problem and the solution. i think
this may happen also with osgi integration, or any other case where an object is used that is found through a classloader different than the one wicket / tomcat is in. Eelco Hillenius wrote:
I'm afraid I don't get the request. Could you please create a feature request with a patch, clearly explaining what is wrong today and what your patch fixes?
Thanks, Eelco On 7/17/06, Ittay Dror
[EMAIL PROTECTED] mailto:
[EMAIL PROTECTED]
wrote: Hi,
We're using plugins similar to Eclipse's to decouple functionality. Each plugin's classes run in their own class loader.
We've encountered a problem in onNewBrowserWindow(). it uses Objects.cloneObject(), which uses the default ObjectInputStream, that uses the class loader associated with the execution stack,
rather than the object's. so trying to get the class of the object when reading it back fails. This can be solved by changing cloneObject to: public static Object cloneObject(final Object object)
{if (object == null){return
null;}else
{try{final
ByteArrayOutputStream out = new ByteArrayOutputStream(256);ObjectOutputStream oos = new
ObjectOutputStream(out);oos.writeObject(object);ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(out
.toByteArray())) { protected Class resolveClass(ObjectStreamClass desc) throws IOException,ClassNotFoundException {
String className = desc.getName();return Class.forName(className, true, object.getClass().getClassLoader()); }
};return
ois.readObject();}catch
(ClassNotFoundException e){
throw
new WicketRuntimeException(Internal error cloning object, e);}catch
(IOException e)
{throw
new WicketRuntimeException(Internal error cloning object, e);}}
} i think that it should work fine in this context since the object is already accessible when writing it. it is working for us.
btw, a problem that is caused by this failure (and the throwing of WicketRuntimeException) is that the PageMap contains null entries (or rather, the session contains attributes with null values). i
couldn't track why exactly this happens. regards, ittay --
=== Ittay Dror, Chief architect, openQRM TL, RD, Qlusters Inc.
[EMAIL PROTECTED] mailto:
[EMAIL PROTECTED]
+972-3-6081994 Fax: +972-3-6081841
http://www.openQRM.org - Keeps your Data-Center Up and Running -
Using Tomcat but need to do more?
Re: [Wicket-user] Absolut newbiwe questions for a secure, data centric application
And alternatively check wicket-contrib-jasperreports and wicket-examples/captcha for idaas on how to build someting like a jfreechart component yourself. Should be quite easy to do that. And if you - or someone else reading this - would be interested in maintaining such a project in wicket-stuff, that'd be absolutely great. Eelco also search the list for jfreechart, there have been a couple of components made for charting alraedy. - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] working with plugins
hmm same name??So igor.i.am.the.one.MyGreatObjectdoes have 2 instances in somewhere in the cloned object hierachy but they are comming from different classloaders??That would really suck. I wouldn't know how to handle that currently.
Because at register time i just get a replaceObject(Object o){ uniqueSet.add(o.getClass().getClassLoader())}and then at resolveClass(){ iterate(uniqueSet) { Class cls =
Class.forName(className,true,classLoaderFromSet) }}Ofcourse if there is only one instance that we need. But the class can come from a different onethen this would help a bit:replaceObject(Object o)
{
map.put(o.getClass().getName(),o.getClass().getClassLoader())
}
resolveClass(){ map.get(className)}That last part is maybe better after all, We will generate a (much) bigger map thenjohanOn 7/22/06,
Igor Vaynberg [EMAIL PROTECTED] wrote:
ah, i see. you are just registering them. i thought you were going to
include it into the cloed object itself. i think we still need to keep
the record of what the object's classloader was in case there are
objects with the same name in more then one classloader. so maybe as
you build up this list of classloaders you save the index with the
cloned object.
-Igor
On 7/22/06, Johan Compagner
[EMAIL PROTECTED] wrote:
it won't impact the size of the cloned objects at allIt is just a list (or better set) of classloaders thats is registered and hold on to for only that cloneXXX methodnothing more. So the only thing that will be generated and discarded quickly is a List or Set holding the Classloaders.
johanOn 7/22/06, Igor Vaynberg
[EMAIL PROTECTED] wrote:
yeah i think that should do it. you think it will have a noticable
impact on the size of our cloned objects? maybe output null if the
object's classloader is the same as our default one to save on space.
-Igor
On 7/22/06, Johan Compagner
[EMAIL PROTECTED] wrote:
Yes that was the idea.. That you have to delegate there through all your classloaders.I implemented your change by first using the objects classloader.. then fall back to what we did now.So that should help your case. When a page (by total) comes from one plugin/package
The only problem is when a page or component that is cloned is a mix of plugins.. Then it won't work and you will need toimplement the IClassResolver so that you iterate over it.But i think i can fix that also.. so that nobody has to worry anymore for classloaders when cloning (model or object)
I just record all the classloaders that are used for all the
objects that are cloned for one request in the outputstream (use the
replaceObject method)Then i use those classloaders myself for t he resolving in the inputstream.. (resolveClass method)
That should always work i believe or am i missing something??johanOn 7/17/06,
Ittay Dror
[EMAIL PROTECTED]
wrote:if
the deserialization uses it, then maybe (i'm not sure how it is used).
but in our case, every Page subclass may be in its own class loader,
separate from others, so using a singleton IClassResolver instance will
not help (unless it delegates to all class loaders, which may cause
havoc). i think that my proposed solution is straight forward.
Igor Vaynberg wrote: we do have IClassResolver woudnt that help? it helped with osgi -Igor On 7/17/06, *Ittay Dror*
[EMAIL PROTECTED]
mailto:
[EMAIL PROTECTED] wrote:
done. the request id is 1524019.
i've added more description of the problem and the solution. i think
this may happen also with osgi integration, or any other case where an object is used that is found through a classloader different than the one wicket / tomcat is in. Eelco Hillenius wrote:
I'm afraid I don't get the request. Could you please create a feature request with a patch, clearly explaining what is wrong today and what your patch fixes?
Thanks, Eelco On 7/17/06, Ittay Dror
[EMAIL PROTECTED] mailto:
[EMAIL PROTECTED]
wrote: Hi,
We're using plugins similar to Eclipse's to decouple functionality. Each plugin's classes run in their own class loader.
We've encountered a problem in onNewBrowserWindow(). it uses Objects.cloneObject(), which uses the default ObjectInputStream, that uses the class loader associated with the execution stack,
rather than the object's. so trying to get the class of the object when reading it back fails. This can be solved by changing cloneObject to: public static Object cloneObject(final Object object)
{if (object == null){return
null;}else
{try{final
ByteArrayOutputStream out = new ByteArrayOutputStream(256);ObjectOutputStream oos = new
ObjectOutputStream(out);oos.writeObject(object);ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(out
.toByteArray())) { protected Class resolveClass(ObjectStreamClass desc) throws IOException,ClassNotFoundException {
String className = desc.getName();return Class.forName(className, true, object.getClass().getClassLoader()); }
};return
ois.readObject();}catch
(ClassNotFoundException e){
throw
new WicketRuntimeException(Internal error
Re: [Wicket-user] Wicket in Action?
Hi Ali, Wicket In Action is a little bit of half way now. It'll be a few months before we're done. I'm afraid we're not far enough to release early chapters, as we're writing them randomly and they're adjusted after proof reading yet. When we get to that point, we'll contact Manning about our options for an early access program, but that might take a while as we're currently giving priority to finishing the chapters first. Thanks for your interest, we'll keep working hard on it :) Eelco On 7/22/06, Ali Zaid [EMAIL PROTECTED] wrote: Hi All! I wonder where Wicket in Action stands now? is there a way we can have early access to the chapters? I would love to have something released periodically than wait for the whole thing :) -- Regards, Ali - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
[Wicket-user] GOOD DAY
I have a new email address!You can now email me at: [EMAIL PROTECTED]I NEED A GOODFRIEND THAT CAN HELP ME INVEST MYMONEY NOW PRIVATE IN YOUR COUNTRY MY HUSBAND DEAD- sanovic mariam- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Wicket search engine
On Sat, 2006-07-22 at 08:30 -0700, Igor Vaynberg wrote: what i want to know is why that version of sf.net is soo much better looking then the crap on sf.net? Well I can't really tell you WHY it look better, but it's basically not the same software as SF.net. It's JAVA based where SF.net is php/whatever based: http://www.sourceforge.net/powerbar/sfee/ Frank - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Wicket search engine
On Sat, 2006-07-22 at 09:31 -0400, Aníbal Rojas wrote: I am an absolut begginer to Wicket, but in RuyCorner.com (which is a Blog Directory and not a Vertical Search engine) people suscribe and register their blogs, and we try to enforce that people use their Ruby/Rails specific feeds that most CMS can provide without a problem. Just an idea... That might be an idea. I have been looking for feeds like that, but people are using all kinds of different cms systems which I don't know are capable of generating category/tag specific feeds for. And then people have to retag there blog entries. I don't know. Perhaps I just add the pages one by one, starting with the ones which helps the most. :) Frank - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Wicket search engine
That might be an idea. I have been looking for feeds like that, but people are using all kinds of different cms systems which I don't know are capable of generating category/tag specific feeds for. And then people have to retag there blog entries. Most modern Blog CMS generate Category/Tag feed by default, but it depends on people using this categories/tags, that's right. I would suggest picking by and the bes feeds, and adding a simple filter where the word wicket should be present in the entry to be included in the search database, that should do it. Good luck. -- Aníbal Rojas [EMAIL PROTECTED] - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Wicket search engine
On Sat, 2006-07-22 at 13:51 -0400, Aníbal Rojas wrote: That might be an idea. I have been looking for feeds like that, but people are using all kinds of different cms systems which I don't know are capable of generating category/tag specific feeds for. And then people have to retag there blog entries. Most modern Blog CMS generate Category/Tag feed by default, but it depends on people using this categories/tags, that's right. I would suggest picking by and the bes feeds, and adding a simple filter where the word wicket should be present in the entry to be included in the search database, that should do it. That was one of my last solutions, cause I'm still quite noob on this Nutch crawler. I have only managed to get it to crawl in the console and not by using java. But I guess it could be done if only I got some more skills :) Frank - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] feedback panel with a header
How do I show/hide both of them depending on availability of feedback messages?AlexOn 7/21/06, Igor Vaynberg [EMAIL PROTECTED] wrote:you can embed the feedbackpanel in another panel that has the header :) -IgorOn 7/21/06, Alexei Sokolov [EMAIL PROTECTED] wrote: Hello,What's the best way to create a feedback panel which has a header, i.e. it looks like this:Please correct the following problems:- field a is missing- field b is missingThe problem is it is not possible to set a header for wicket.markup.html.panel.FeedbackPanel. Maybe I'm missing something, maybe it's been a long week... Please help.Alex -Take Surveys. Earn Cash. Influence the Future of ITJoin SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user -Take Surveys. Earn Cash. Influence the Future of ITJoin SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___Wicket-user mailing list Wicket-user@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/wicket-user - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] feedback panel with a header
feedbackpanel has .anyErrorMessage() and .anyMessage() so you can use thosefinal FeedbackPanel fb=new FeedbackPanel(...) { isvisible() { return anyErrorMessage(); }}add(new Label(..) { isvisible() { return
fb.anyErrorMessage(); }}-IgorOn 7/22/06, Alexei Sokolov [EMAIL PROTECTED] wrote:
How do I show/hide both of them depending on availability of feedback messages?
AlexOn 7/21/06, Igor Vaynberg
[EMAIL PROTECTED] wrote:you can embed the feedbackpanel in another panel that has the header :)
-IgorOn 7/21/06, Alexei Sokolov
[EMAIL PROTECTED] wrote:
Hello,What's the best way to create a feedback panel which has a header,
i.e. it looks like this:Please correct the following problems:- field a is missing- field b is missingThe problem is it is not possible to set a header for
wicket.markup.html.panel.FeedbackPanel. Maybe I'm missing something, maybe it's been a long week... Please help.Alex
-Take Surveys. Earn Cash. Influence the Future of ITJoin SourceForge.net's Techsay panel and you'll get the chance to share your
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Re: [Wicket-user] ListView#accept() proposal
On Monday, 17 July 2006 08:21 pm, Aaron Hiniker escreveu:
Yes, a List implement that filters on the fly would avoid the copy, but
I am not sure if you are talking the Collections api list, but if you
are
then the Glazedlists stuff provides an implementation of the Collections api
list which filters on the fly. It's really wonderful stuff. They do
filters, transformations. sorting, unique - all on the fly so that if the
underlying list changes, the derived lists all automatically update too.
Very, very good stuff.
probably incur greater performance hits than a single List copy (due to
the Linked List nature of the filtering). The current ListView
implementation only works on lists.. rightfully so because you can
extract the active window via get() calls and provide pagination. On
that note, I agree that for ListView, the accept() is not a good
candidate.. but I also feel that there is a void in not having a
component that *doesn't* paginate.. like a CollectionView.. that visits
each element in the list with easy filtering capabilities (in fact 90%
of the time I am using ListView I am not using pagination). If I get
ambitious enough to write it, I'll submit it for consideration into
wicket-extensions
Aaron
On Mon, 2006-07-17 at 17:40 -0700, Igor Vaynberg wrote:
im sorry but why will there be a listcopy?that is certainly a way to
go but its not the only way. from the model return a List interfcace
that filters on the fly.
-Igor
On 7/17/06, Aaron Hiniker [EMAIL PROTECTED] wrote:
Yeah, there's no problem implementing this in the model, other
than the fact that there will be a list copy.
Aaron
On Mon, 2006-07-17 at 17:02 -0700, Igor Vaynberg wrote:
the filtering should be performed in the model - it is the
perfect place for it.
-Igor
On 7/17/06, Juergen Donnerstag
[EMAIL PROTECTED] wrote:
Just out of my head. Paging which is based on
windows size and list
size would need to take these into consideration.
Not sure this change
is trivial.
Juergen
On 7/18/06, Aaron Hiniker [EMAIL PROTECTED] wrote:
I frequently have the need to filter the elements
in a ListView.. of
course I can filter elements before passing them
to ListView by creating
a new List, but it seems a lot cleaner to have an
accept() method, just
like in IFeedbackMessageFilter or whatever.
ie:
add( new ListView( list, myList ) ) {
public void onPopulateItem( ListItem item )
{ ... }
public boolean accept( ListItem item ) {
return
((MyEntity)item.getModel()).isActive();
}
}
Would this be trivial to add to the ListView
component?
ie:
Aaron
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