Is this safe?
Hi all, I wonder if this will work: add(new CartPanel(cart, new PropertyModel(s, cart))); where 's' is my app specific session, containing the method getCart() which checks the session for an existing cart, and if not found creates one. Is this enough to handle load/detach? Or do I have to write my own LoadableModel -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29
RE: We are adopting Wicket in our Organization
I fully agree. I used JSF/SEAM before switching to Wicket. My experience is that Wicket is JSF-Done-Right As I've stated before in a previous post, I work a for a company that develops software for the health care industry. It was a battle between JSF/Seam and Wicket as the framework of choice for the rewrite of the company's portal. After a whitepaper written by a colleague of mine that compared the two implementations, Wicket was the clear winner. (I also presented a demo of the Wicket framework to the team a couple months back). I'd like to thank the authors of the framework for building such a fine tool. After years of struts development, developing web applications with Wicket is a breath of fresh air. Keep up the fine work. I'll update this forum with our experience in developing/deploying web apps using Wicket. - rm3 -- View this message in context: http://www.nabble.com/We-are-adopting-Wicket-in-our-Organization-tp14988751p149 88751.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Is this safe?
What would you like to detach? What is inside that card object? I guess thats a temp storage object of shopping items? Do remenber that getting the card object from the session isnt thread safe! (mutating it can be done from more then one thread if different pagemaps and so on are used) On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: Hi all, I wonder if this will work: add(new CartPanel(cart, new PropertyModel(s, cart))); where 's' is my app specific session, containing the method getCart() which checks the session for an existing cart, and if not found creates one. Is this enough to handle load/detach? Or do I have to write my own LoadableModel -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Link to last version of a page of a given type/class.
Hi,
I may be overlooking something, however I am having a bit of trouble linking
to the last current version of a page unless I use the method outlined by
igor, which isn't practical for what I am trying to achieve (see his method
below from
http://www.nabble.com/pageMap-question---td13541168.html#a13554232)
igor.vaynberg wrote:
for scenarios like those simply pass the page instance to another page
class secondsteppage extends webpage {
public secondsteppage(page first) {
add(new link(go-back) { onclick() { setresponsepage(first); }});
}
}
-igor
For example, say I have a page of search criteria (the form is in a reusable
panel), and its filled and i navigate around a bit. The next time I come to
the search criteria page, I want it to remember the last search (ie, return
the last version of the search criteria page).
I have been able to do this in a rudimentary way by passing the page
instance of the search criteria page through to the constructor of the
destination page via a forms onSubmit().
This means I can then call the
setResponsePage(searchPage.getVersion(Page.LATEST_VERSION)); on the onClick
of a link in the destination page.
However this will only work from the destination page - not if i navigate
around to other pages. Without specifying a version a new instance is
being created.
(ie PageLink(SearchPage.class) creates a new SearchPage instance).
Surely there is a way of retrieving the latest existing version of a page
given a class type. I've trawled google and the examples and api - I'm
feeling stupid - like i've missed something obvious, or inadvertently broken
the expected behaviour.
--
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http://www.nabble.com/Link-to-last-version-of-a-page-of-a-given-type-class.-tp14994042p14994042.html
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Re: We are adopting Wicket in our Organization
SEAM is not that bad actually. Though it still has some quirks. On 1/21/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: I fully agree. I used JSF/SEAM before switching to Wicket. My experience is that Wicket is JSF-Done-Right -- It's not going to be like this forever Blog: http://joshuajava.wordpress.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Link to last version of a page of a given type/class.
Just remember in a simple valuesholder class the page id and pagmap
for a page (and version if you want that) and then ask through the
session for that page. If many pages (or big pages) are created in
between, it could return nothing.. Depending on the size of the
diskpage session/pagmap file.
On 1/21/08, Ned Collyer [EMAIL PROTECTED] wrote:
Hi,
I may be overlooking something, however I am having a bit of trouble linking
to the last current version of a page unless I use the method outlined by
igor, which isn't practical for what I am trying to achieve (see his method
below from
http://www.nabble.com/pageMap-question---td13541168.html#a13554232)
igor.vaynberg wrote:
for scenarios like those simply pass the page instance to another page
class secondsteppage extends webpage {
public secondsteppage(page first) {
add(new link(go-back) { onclick() { setresponsepage(first); }});
}
}
-igor
For example, say I have a page of search criteria (the form is in a reusable
panel), and its filled and i navigate around a bit. The next time I come to
the search criteria page, I want it to remember the last search (ie, return
the last version of the search criteria page).
I have been able to do this in a rudimentary way by passing the page
instance of the search criteria page through to the constructor of the
destination page via a forms onSubmit().
This means I can then call the
setResponsePage(searchPage.getVersion(Page.LATEST_VERSION)); on the onClick
of a link in the destination page.
However this will only work from the destination page - not if i navigate
around to other pages. Without specifying a version a new instance is
being created.
(ie PageLink(SearchPage.class) creates a new SearchPage instance).
Surely there is a way of retrieving the latest existing version of a page
given a class type. I've trawled google and the examples and api - I'm
feeling stupid - like i've missed something obvious, or inadvertently broken
the expected behaviour.
--
View this message in context:
http://www.nabble.com/Link-to-last-version-of-a-page-of-a-given-type-class.-tp14994042p14994042.html
Sent from the Wicket - User mailing list archive at Nabble.com.
-
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Re: Is this safe?
ok, and if the session isn't thread safe, where do I store my temporal data? 2008/1/21, Johan Compagner [EMAIL PROTECTED]: The session. Because the property exp is used when you ask for the value On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: you're right. It contains a shoppingcart. What is stored in the propertymodel, the session? Or the result of evaluating the expression s.cart - session.getCart(). And if the session isn't thread safe, where do I store my temporal data? 2008/1/21, Johan Compagner [EMAIL PROTECTED]: What would you like to detach? What is inside that card object? I guess thats a temp storage object of shopping items? Do remenber that getting the card object from the session isnt thread safe! (mutating it can be done from more then one thread if different pagemaps and so on are used) On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: Hi all, I wonder if this will work: add(new CartPanel(cart, new PropertyModel(s, cart))); where 's' is my app specific session, containing the method getCart() which checks the session for an existing cart, and if not found creates one. Is this enough to handle load/detach? Or do I have to write my own LoadableModel -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29
Re: Questions for permission of using the design of wicket-example
Cool to hear that it is such a big success! I cant believe that you couldnt use those things if they are all also released under apache license but lets wait for martijn. (you could drop the apache form the apache wicket name) On 1/20/08, Tsutomu Yano [EMAIL PROTECTED] wrote: Hi, Few days ago, we (I and my friends) organize a user group of Wicket in Japan(Wicket User Group Japan aka Wicket-JA) and already 80+ people join with us. https://sourceforge.jp/projects/wicket-ja We are creating the group-site now (we haven't it yet. only mailing lists). The wicket framework is so hot now in Japan! We would like to expand the number of users in japan by providing wicket-related information to our members in japanese language and at some time would like to contribute to the Apache Wicket project by sending you some bug-fixing or function-expanding code. We have some questions to the wicket team. and I could not find out the contact address on wicket site. I hope that the members of wicket team will read this message... Our questions: 1. We would like to make our pages visually 'wicket-like'. So we would like to use the design and background images of your 'wicket- example' like http://www.wicketstuff.org/wicket13/captcha/ . May I do that? 2. Can we use your Wicket Logo mark on our site? or is it under any kind of protections? If it is possible, we would like to put the logo mark on our top page. Thank you. - Tsutomu YANO mailto:benbrand at mac.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Is this safe?
you're right. It contains a shoppingcart. What is stored in the propertymodel, the session? Or the result of evaluating the expression s.cart - session.getCart(). And if the session isn't thread safe, where do I store my temporal data? 2008/1/21, Johan Compagner [EMAIL PROTECTED]: What would you like to detach? What is inside that card object? I guess thats a temp storage object of shopping items? Do remenber that getting the card object from the session isnt thread safe! (mutating it can be done from more then one thread if different pagemaps and so on are used) On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: Hi all, I wonder if this will work: add(new CartPanel(cart, new PropertyModel(s, cart))); where 's' is my app specific session, containing the method getCart() which checks the session for an existing cart, and if not found creates one. Is this enough to handle load/detach? Or do I have to write my own LoadableModel -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29
Re: Is this safe?
The session. Because the property exp is used when you ask for the value On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: you're right. It contains a shoppingcart. What is stored in the propertymodel, the session? Or the result of evaluating the expression s.cart - session.getCart(). And if the session isn't thread safe, where do I store my temporal data? 2008/1/21, Johan Compagner [EMAIL PROTECTED]: What would you like to detach? What is inside that card object? I guess thats a temp storage object of shopping items? Do remenber that getting the card object from the session isnt thread safe! (mutating it can be done from more then one thread if different pagemaps and so on are used) On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: Hi all, I wonder if this will work: add(new CartPanel(cart, new PropertyModel(s, cart))); where 's' is my app specific session, containing the method getCart() which checks the session for an existing cart, and if not found creates one. Is this enough to handle load/detach? Or do I have to write my own LoadableModel -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Questions for permission of using the design of wicket-example
On 1/21/08, Johan Compagner [EMAIL PROTECTED] wrote: Cool to hear that it is such a big success! I cant believe that you couldnt use those things if they are all also released under apache license but lets wait for martijn. (you could drop the apache form the apache wicket name) Can some official Wicket buttons be made available to add to sites and applications powered by Wicket and the like? The Spring Framework buttons can be found here: http://www.springframework.org/spring-buttons Oh and by the way I noticed a poll on the Spring front page: http://www.springframework.org/ that asks the question which web templating framework do you use and Wicket is one of the choices :) - Peter On 1/20/08, Tsutomu Yano [EMAIL PROTECTED] wrote: Hi, Few days ago, we (I and my friends) organize a user group of Wicket in Japan(Wicket User Group Japan aka Wicket-JA) and already 80+ people join with us. https://sourceforge.jp/projects/wicket-ja We are creating the group-site now (we haven't it yet. only mailing lists). The wicket framework is so hot now in Japan! We would like to expand the number of users in japan by providing wicket-related information to our members in japanese language and at some time would like to contribute to the Apache Wicket project by sending you some bug-fixing or function-expanding code. We have some questions to the wicket team. and I could not find out the contact address on wicket site. I hope that the members of wicket team will read this message... Our questions: 1. We would like to make our pages visually 'wicket-like'. So we would like to use the design and background images of your 'wicket- example' like http://www.wicketstuff.org/wicket13/captcha/ . May I do that? 2. Can we use your Wicket Logo mark on our site? or is it under any kind of protections? If it is possible, we would like to put the logo mark on our top page. Thank you. - Tsutomu YANO mailto:benbrand at mac.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Link to last version of a page of a given type/class.
Hi Johan, Thank you for the reply. This suggestion will work, but it seems like something that the framework should do automatically. The whole maintaining state thing is meant to maintain state between requests without the extra dev overhead of manually plugging stuff into, and pulling out of the session. I'm happy to get a new instance of the page if its been cleansed from the session - thats not a problem, but I was under the impression that wicket should already be maintaining this state - I just need a link generated. I find it a bit bizarre that methods like Page.getVersion(int num) exist, but because its not static.. i need an instance of the page to retrieve a previously versioned instances of the page. (rather than Page.getVersion(Class clazz, int version)). Does wicket not support linking to the last version of a given class type? If not, I would find this quite useful. Something like new PageLink(search-criteria-link, SearchCriteriaPage.class, Page.LATEST_VERSION) Would be exactly what I'm after. (I'm still optimistic that this feature exists and its me being stupid not able to find it. ;)) Rgds Ned Johan Compagner wrote: Just remember in a simple valuesholder class the page id and pagmap for a page (and version if you want that) and then ask through the session for that page. If many pages (or big pages) are created in between, it could return nothing.. Depending on the size of the diskpage session/pagmap file. -- View this message in context: http://www.nabble.com/Link-to-last-version-of-a-page-of-a-given-type-class.-tp14994042p14994505.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Is this safe?
custom request cycle? 2008/1/21, Martijn Dashorst [EMAIL PROTECTED]: Typically a custom request cycle for the actual object and store the key for getting access to the object in the session. If the cart is not a hibernate entity, but something really transient, I don't think there is any harm in putting it in the session, as long as you are certain you won't be doing resouce updates based on the session. Typically add/remove from carts are single requests that are synchronized on the session. As for the property model, you can do this as well: add(new ShoppingCartPanel(panel, new PropertyModel(this, session.cart ))); Martijn On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: ok, and if the session isn't thread safe, where do I store my temporal data? 2008/1/21, Johan Compagner [EMAIL PROTECTED]: The session. Because the property exp is used when you ask for the value On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: you're right. It contains a shoppingcart. What is stored in the propertymodel, the session? Or the result of evaluating the expression s.cart - session.getCart(). And if the session isn't thread safe, where do I store my temporal data? 2008/1/21, Johan Compagner [EMAIL PROTECTED]: What would you like to detach? What is inside that card object? I guess thats a temp storage object of shopping items? Do remenber that getting the card object from the session isnt thread safe! (mutating it can be done from more then one thread if different pagemaps and so on are used) On 1/21/08, Martijn Lindhout [EMAIL PROTECTED] wrote: Hi all, I wonder if this will work: add(new CartPanel(cart, new PropertyModel(s, cart))); where 's' is my app specific session, containing the method getCart() which checks the session for an existing cart, and if not found creates one. Is this enough to handle load/detach? Or do I have to write my own LoadableModel -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29 -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0 -- Martijn Lindhout JointEffort IT Services http://www.jointeffort.nl [EMAIL PROTECTED] +31 (0)6 18 47 25 29
Re: Questions for permission of using the design of wicket-example
Actually, Wicket as it pertains to Apache Wicket is protected. I'm just not sure to what extent. It may even be that new open source projects many not call them WicketFoo, but rather Foo for Apache Wicket. It all has to do with protecting the trademark. However, I'm still waiting for a reply from the PRC. Martijn On 1/21/08, Johan Compagner [EMAIL PROTECTED] wrote: Cool to hear that it is such a big success! I cant believe that you couldnt use those things if they are all also released under apache license but lets wait for martijn. (you could drop the apache form the apache wicket name) On 1/20/08, Tsutomu Yano [EMAIL PROTECTED] wrote: Hi, Few days ago, we (I and my friends) organize a user group of Wicket in Japan(Wicket User Group Japan aka Wicket-JA) and already 80+ people join with us. https://sourceforge.jp/projects/wicket-ja We are creating the group-site now (we haven't it yet. only mailing lists). The wicket framework is so hot now in Japan! We would like to expand the number of users in japan by providing wicket-related information to our members in japanese language and at some time would like to contribute to the Apache Wicket project by sending you some bug-fixing or function-expanding code. We have some questions to the wicket team. and I could not find out the contact address on wicket site. I hope that the members of wicket team will read this message... Our questions: 1. We would like to make our pages visually 'wicket-like'. So we would like to use the design and background images of your 'wicket- example' like http://www.wicketstuff.org/wicket13/captcha/ . May I do that? 2. Can we use your Wicket Logo mark on our site? or is it under any kind of protections? If it is possible, we would like to put the logo mark on our top page. Thank you. - Tsutomu YANO mailto:benbrand at mac.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0
Re: Questions for permission of using the design of wicket-example
On 1/21/08, Peter Thomas [EMAIL PROTECTED] wrote: Oh and by the way I noticed a poll on the Spring front page: http://www.springframework.org/ that asks the question which web templating framework do you use and Wicket is one of the choices :) And of course the poll is rather skewed... Who are primarily going to look at the site? Spring MVC devs. If we would put a poll on our site, guess who would be the most popular framework? Martijn -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
You might want to skip the packaged version (IMO linux packagers don't get the Java packaging), and just unzip a tarball in /opt/tomcat/tomcat-5.5.20 Then you are in complete control over how the server runs. Martijn On 1/21/08, Daniel Walmsley [EMAIL PROTECTED] wrote: I blogged this, and Eelco wisely suggested I post it here. This is both a warning and plea for help - what's the best way to configure Tomcat on Debian for Wicket? Was up until 3am last night banging my head against another frustrating go-nowhere issue deploying Wicket on Debian Etch's default Tomcat5.5. Apparently the latest version (5.5.20-2etch1) has additional security headaches features which prevent wicket from functioning properly out-of-the-box: * First of all, there's still an (as-yet-unsolved) mystery around why I couldn't get Wicket to start up as a filter. Just the mysterious ERROR: filterStart which makes me want to feed Tomcat to angry lions. Worked around it by using Wicket in Servlet mode instead. * Tomcat's juli.jar can't access WEB-INF/classes/logging.properties. Fixed (in sledgehammer-like way) by adding permission java.security.AllPermission; to /etc/tomcat5.5/policy.d/03catalina.policy, in the Juli section. * Tomcat security prevents webapps from accessing all sorts of features and methods by default, including wicket.properties, methods inside shipped jars, etc. Not being a Tomcat expert, and trusting the innate security of the server and millions of lines of third party code (i.e. I'm an idiot) I again just popped a java.security.AllPermission; in appropriate spots in /etc/tomcat5.5/policy.d/04webapps.policy. Let the flames commence! If Tomcat was a little more helpful in its error messages, this would never have been so painful. Jetty has always run my Wicket apps without complaint (though I've never tried the official Debian Jetty packages - maybe they're crippleware secure too?). The only reason I use Tomcat at all is the remote management and deployment features, which are well-supported by Cargo. Now that these issues are out of the way (mostly) I can take another few steps towards my dream of a seamless, fire-and-forget, auto-deploying, smoke-tested, pluggable and modular web app deployment system. Any ideas on how to better configure Tomcat? Any ideas on how to get more information about that ERROR: filterStart problem? I'd really like to do things the recommended way, instead of having to use WicketServlet. Cheers, Dan *Daniel Walmsley Director, Firesyde http://firesyde.com/ e: [EMAIL PROTECTED] m: +61404864141 * -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0
Re: Questions for permission of using the design of wicket-example
On 1/21/08, Martijn Dashorst [EMAIL PROTECTED] wrote: On 1/21/08, Peter Thomas [EMAIL PROTECTED] wrote: Oh and by the way I noticed a poll on the Spring front page: http://www.springframework.org/ that asks the question which web templating framework do you use and Wicket is one of the choices :) And of course the poll is rather skewed... Who are primarily going to look at the site? Spring MVC devs. If we would put a poll on our site, guess who would be the most popular framework? Martijn Well not exactly, the poll question I am referring to for web templating has JSP, Velocity, FreeMarker, GWT, JSF, Tapestry, Wicket and Others are the choices. But you have a point - Spring MVC developers would have to choose between JSP, Velocity or FreeMarker and sure enough - JSP has an impressive lead. JSF comes in as a clear second though. This must be the Spring WebFlow users ? :) -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
Take then the latest 6 5 is getting pretty old On 1/21/08, Martijn Dashorst [EMAIL PROTECTED] wrote: You might want to skip the packaged version (IMO linux packagers don't get the Java packaging), and just unzip a tarball in /opt/tomcat/tomcat-5.5.20 Then you are in complete control over how the server runs. Martijn On 1/21/08, Daniel Walmsley [EMAIL PROTECTED] wrote: I blogged this, and Eelco wisely suggested I post it here. This is both a warning and plea for help - what's the best way to configure Tomcat on Debian for Wicket? Was up until 3am last night banging my head against another frustrating go-nowhere issue deploying Wicket on Debian Etch's default Tomcat5.5. Apparently the latest version (5.5.20-2etch1) has additional security headaches features which prevent wicket from functioning properly out-of-the-box: * First of all, there's still an (as-yet-unsolved) mystery around why I couldn't get Wicket to start up as a filter. Just the mysterious ERROR: filterStart which makes me want to feed Tomcat to angry lions. Worked around it by using Wicket in Servlet mode instead. * Tomcat's juli.jar can't access WEB-INF/classes/logging.properties. Fixed (in sledgehammer-like way) by adding permission java.security.AllPermission; to /etc/tomcat5.5/policy.d/03catalina.policy, in the Juli section. * Tomcat security prevents webapps from accessing all sorts of features and methods by default, including wicket.properties, methods inside shipped jars, etc. Not being a Tomcat expert, and trusting the innate security of the server and millions of lines of third party code (i.e. I'm an idiot) I again just popped a java.security.AllPermission; in appropriate spots in /etc/tomcat5.5/policy.d/04webapps.policy. Let the flames commence! If Tomcat was a little more helpful in its error messages, this would never have been so painful. Jetty has always run my Wicket apps without complaint (though I've never tried the official Debian Jetty packages - maybe they're crippleware secure too?). The only reason I use Tomcat at all is the remote management and deployment features, which are well-supported by Cargo. Now that these issues are out of the way (mostly) I can take another few steps towards my dream of a seamless, fire-and-forget, auto-deploying, smoke-tested, pluggable and modular web app deployment system. Any ideas on how to better configure Tomcat? Any ideas on how to get more information about that ERROR: filterStart problem? I'd really like to do things the recommended way, instead of having to use WicketServlet. Cheers, Dan *Daniel Walmsley Director, Firesyde http://firesyde.com/ e: [EMAIL PROTECTED] m: +61404864141 * -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0 -- Sent from Gmail for mobile | mobile.google.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Link to last version of a page of a given type/class.
Wicket does maintain state, but what you want is something different and currently not supported. We dont have 'static' pages for a specific page class. You are in full control. About pag.getversion those methods shouldnt be used by users of wicket at all. If you want something like this because you dont want to keep references to the pages itself use session.getPage method On 1/21/08, Ned Collyer [EMAIL PROTECTED] wrote: Hi Johan, Thank you for the reply. This suggestion will work, but it seems like something that the framework should do automatically. The whole maintaining state thing is meant to maintain state between requests without the extra dev overhead of manually plugging stuff into, and pulling out of, the session. I'm happy to get a new instance of the page if its been cleansed from the session - thats not a problem, but I was under the impression that wicket should already be maintaining this state - I just need a link generated. I find it a bit bizarre that methods like Page.getVersion(int num) exist, but because its not static.. i need an instance of the page to retrieve a previously versioned instances of the page. (rather than Page.getVersion(Class clazz, int version)). Does wicket not support linking to the last version of a given class type? If not, I would find this quite useful. Something like new PageLink(search-criteria-link, SearchCriteriaPage.class, Page.LATEST_VERSION) Would be exactly what I'm after. (I'm still optimistic that this feature exists and its me being stupid not able to find it. ;)) Rgds Ned Johan Compagner wrote: Just remember in a simple valuesholder class the page id and pagmap for a page (and version if you want that) and then ask through the session for that page. If many pages (or big pages) are created in between, it could return nothing.. Depending on the size of the diskpage session/pagmap file. -- View this message in context: http://www.nabble.com/Link-to-last-version-of-a-page-of-a-given-type-class.-tp14994042p14994505.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Sent from Gmail for mobile | mobile.google.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
On Mon, 2008-01-21 at 11:31 +0100, Martijn Dashorst wrote: You might want to skip the packaged version (IMO linux packagers don't get the Java packaging), and just unzip a tarball in /opt/tomcat/tomcat-5.5.20 Then you are in complete control over how the server runs. -1 Some distro packaging systems while admittedly are lacking in certain areas are there for a reason. 1) Tomcat is not perfect software and thus may have some security issue either in core or in the default context that's enabled by default and thus not everyone follows such alerts/advisories for a living. (Trusting that the distro will issue an update and the system is regularly maintained.) 2) I'm not sure this takes into account the install of tomcat native libs and also any distro related changes there etc etc... Martijn snip / Apparently the latest version ( 5.5.20-2etch1) has additional security headaches features which prevent wicket from functioning properly out-of-the-box: I consider this a positive thing as it means some forethought has actually gone into this package. snip / Any ideas on how to better configure Tomcat? Not at the moment. The best I can offer is give me about a week and I'll see if I can get deb etch installed in vmware and have a look. Good luck, ./C - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
On Mon, 2008-01-21 at 11:52 +0100, Johan Compagner wrote: Take then the latest 6 5 is getting pretty old I know from first hand experience with a couple Linux distros are still on 5 as it's 'stable'. More to the point is that they probably can't support slotted upgrades where half of the community wants 5.x and the other half wants 6.x so they are erring on the conservative side. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Override HTML in html fragment
We want to switch an input field between input type=text and textarea depending on how large the existing data is. Is there any way to do this without needing a spurious placeholder element? ie We would rather not have a but rather just get the text or textarea in the final HTML . So anything I can do in onComponentTag etc to change the tag name in the HTML file? Cheers Sam -- View this message in context: http://www.nabble.com/Override-HTML-in-html-fragment-tp14995403p14995403.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
So your advise is to run a *very* outdated version because the packagers haven't updated their software? Sounds like a great way to open up your system to hackers. Martijn On 1/21/08, C. Bergström [EMAIL PROTECTED] wrote: On Mon, 2008-01-21 at 11:31 +0100, Martijn Dashorst wrote: You might want to skip the packaged version (IMO linux packagers don't get the Java packaging), and just unzip a tarball in /opt/tomcat/tomcat-5.5.20 Then you are in complete control over how the server runs. -1 Some distro packaging systems while admittedly are lacking in certain areas are there for a reason. 1) Tomcat is not perfect software and thus may have some security issue either in core or in the default context that's enabled by default and thus not everyone follows such alerts/advisories for a living. (Trusting that the distro will issue an update and the system is regularly maintained.) 2) I'm not sure this takes into account the install of tomcat native libs and also any distro related changes there etc etc... Martijn snip / Apparently the latest version ( 5.5.20-2etch1) has additional security headaches features which prevent wicket from functioning properly out-of-the-box: I consider this a positive thing as it means some forethought has actually gone into this package. snip / Any ideas on how to better configure Tomcat? Not at the moment. The best I can offer is give me about a week and I'll see if I can get deb etch installed in vmware and have a look. Good luck, ./C - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
On Mon, 2008-01-21 at 12:13 +0100, Martijn Dashorst wrote: So your advise is to run a *very* outdated version because the packagers haven't updated their software? Sounds like a great way to open up your system to hackers. That's a very broad and sweeping statement. 1) I'm sure if there were known issues the distro package maintainer *should* issue an update with a fix 2) Looking at http://tomcat.apache.org/whichversion.html it appears 5.x is still supported I'll agree that a best practice to use latest stable, but not all organizations get it right living on the bleeding edge of custom packages and SVN Trunk or CVS HEAD if you prefer.. I'm trying to give sensible advice that is generic enough to not lead someone astray or with other caveats which could result in bad pratices or more problems down the road. Now if I look at his original email and wonder why deb is still on 5.5.20-2etch1 when the apache site lists 5.5.25 as current I have no idea. ./C - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
Completely not working is a great security fix yes... If that distro is still in 5.5 mode then i question there updates On 1/21/08, C. Bergström [EMAIL PROTECTED] wrote: On Mon, 2008-01-21 at 11:31 +0100, Martijn Dashorst wrote: You might want to skip the packaged version (IMO linux packagers don't get the Java packaging), and just unzip a tarball in /opt/tomcat/tomcat-5.5.20 Then you are in complete control over how the server runs. -1 Some distro packaging systems while admittedly are lacking in certain areas are there for a reason. 1) Tomcat is not perfect software and thus may have some security issue either in core or in the default context that's enabled by default and thus not everyone follows such alerts/advisories for a living. (Trusting that the distro will issue an update and the system is regularly maintained.) 2) I'm not sure this takes into account the install of tomcat native libs and also any distro related changes there etc etc... Martijn snip / Apparently the latest version ( 5.5.20-2etch1) has additional security headaches features which prevent wicket from functioning properly out-of-the-box: I consider this a positive thing as it means some forethought has actually gone into this package. snip / Any ideas on how to better configure Tomcat? Not at the moment. The best I can offer is give me about a week and I'll see if I can get deb etch installed in vmware and have a look. Good luck, ./C - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Sent from Gmail for mobile | mobile.google.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Ext JS, form submit
Hi Flemming I have also tried to integrate ExtJS and wicket, but i dont think it is possible if you need to post or edit content on a page. The best way to post a form is to use xml between ext and wicket but then it doesnt makes sense to use wicket. Wicket needs markup, ext doesnt have any markup, thats why you can only use readonly ext widgets. Maybe the wicket team should do the same as google. Talk with the ext devs and make and integration. /Murat 2008/1/18, Flemming Boller [EMAIL PROTECTED]: Hi Having glazed at the ExtJS components you can not help, but feel I must try and integrate this into wicket. However when I started at trying to submit data to wicket from the Ext.form.FormPanel, lots of trouble appeared. I can not make Ext.FormPanel apply to a form tag , only a div tag. With div tag I can not in wicket use the Form Component. Also the id´s of elements change after Ext.onReady() has been performed, which I think is not good for wicket :-) Anyway the million dollar question is: Has anyone made a successfully 'form' submit from Ext to a wicket component ? Regards Flemming
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
I think that most linux packagers don't work with Java projects and do whatever they like. What Daniel is experiencing is an overzealous packager that shuts down the most basic service tomcat needs to provide: run a web application that does more than serve static pages. Packagers often make any documentation that is available for a Java project worthless because they move everything all over the disk. This is akin to a mysql installation where you can't start a database and run queries against. Also, AFAIK 5.5.20 is about 1.5 years old. To me that is an indication that packagers don't provide the most secure and workable solution, especially when the latest 5.5.x (5.5.25) is already 6 months out. Conservatism is a great thing for production servers, but running 1.5 years behind the curve...? Of course, the converse could be said for Java developers not getting linux packaging, and in a sense we can learn a great deal from the tried and tested unix package management. But even that is something that is still evolving. For instance maven's repository infrastructure could (should?) be pushed to a RPM/jpackage/apt service. The way I see it is that maven has reinvented the wheel, and managed to make it a bit bumpier... Martijn On 1/21/08, C. Bergström [EMAIL PROTECTED] wrote: On Mon, 2008-01-21 at 12:13 +0100, Martijn Dashorst wrote: So your advise is to run a *very* outdated version because the packagers haven't updated their software? Sounds like a great way to open up your system to hackers. That's a very broad and sweeping statement. 1) I'm sure if there were known issues the distro package maintainer *should* issue an update with a fix 2) Looking at http://tomcat.apache.org/whichversion.html it appears 5.x is still supported I'll agree that a best practice to use latest stable, but not all organizations get it right living on the bleeding edge of custom packages and SVN Trunk or CVS HEAD if you prefer.. I'm trying to give sensible advice that is generic enough to not lead someone astray or with other caveats which could result in bad pratices or more problems down the road. Now if I look at his original email and wonder why deb is still on 5.5.20-2etch1 when the apache site lists 5.5.25 as current I have no idea. ./C - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0
Re: Security violations and ERROR: filterStart with Tomcat deployment on Debian Etch
On Mon, 2008-01-21 at 12:28 +0100, Johan Compagner wrote: Completely not working is a great security fix yes... If that distro is still in 5.5 mode then i question there updates Here's the wishlist item for why there isn't currently 6.x in deb etch http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=413906 From what I can tell this package is pretty diligently updated for security issues and saying anything about 5.5.x being a hackers risk is fud unless it can be backed up with evidence. http://packages.debian.org/stable/allpackages?format=txt.gz Since others know best I'm going to step aside on this. I assume this is a user configuration issue, but 1) I don't use debian (and was trying to be helpful) 2) My distro of choice *does* have tc 6 (which I'm not sure matters in this case) 3) I don't use tc for production - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Different views in wicket
Hi! I'm developing a site that has different views and languages. How does this fit in the wicket framework? When adding a WebPage you get a default .html view. Is there anyway on having multiple views for a wicket page? How do you develop a site with same model but different views? // Mathias -- View this message in context: http://www.nabble.com/Different-views-in-wicket-tp14997475p14997475.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
bookmarkable link keep recreate the objects.
Hi: On a Home page menu bar, I put a FAQ link add(new Bookmarkablelinl(id,FAQ.class) it is not an external static html file link since it would includes a few other bookmarkable links/buttons. It is content does not change, but in the same session, say every second, when I click on the FAQ link, a new FAQ object is created and content is resent to browser even if the content is the same. FAQ.html template is basically static except a few wicket:link. This is obviouly a huge performance issue. What would be the best way to resolve this. So far, Wicket's link handling has been the biggest issue compared to more convertional approaches but I guess I am just not getting it well enough. Thanks
RE: bookmarkable link keep recreate the objects.
To simpplify the issue, Consider the following Home.html html span wicket:id=text//html Home.java add(new Label(text, StaticText) Everytime the home page is accessed, Home.java is created anew and so is the text label even though the content should remain the same through the session. How can I make the Home page object reusable for each user seassion after the first access. Hi: On a Home page menu bar, I put a FAQ link add(new Bookmarkablelinl(id,FAQ.class) it is not an external static html file link since it would includes a few other bookmarkable links/buttons. It is content does not change, but in the same session, say every second, when I click on the FAQ link, a new FAQ object is created and content is resent to browser even if the content is the same. FAQ.html template is basically static except a few wicket:link. This is obviouly a huge performance issue. What would be the best way to resolve this. So far, Wicket's link handling has been the biggest issue compared to more convertional approaches but I guess I am just not getting it well enough. Thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Jboss Portal + Wicket (Portlet)
Hi Suli, Thanks much for the details. Where did you get calss JbossPortletResourceURLFactory? This is exactly what I am missing. I can't find it in jboss portal, wicket1.3 download, or apache portal bridge1.04. If this is your own implementation, can you please post the code? init-param namePortletResourceURLFactory/name valuewicket.tetst.common.JbossPortletResourceURLFactory/value /init-param -- View this message in context: http://www.nabble.com/Jboss-Portal-%2B-Wicket-%28Portlet%29-tp14953943p14998263.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Jboss Portal + Wicket (Portlet)
JbossPortletResourceURLFactory is my custom class. As far as I know Jboss Portal team hasn't implemented it yet, so I did the job (it's not a big thing though as u can see in my previous letter). So check my last letter for the code ... especially the part And my implementation of PortletResourceURLFactory ;). Good luck! PS: my surname is Zsolt ;) Markqt wrote: Hi Suli, Thanks much for the details. Where did you get calss JbossPortletResourceURLFactory? This is exactly what I am missing. I can't find it in jboss portal, wicket1.3 download, or apache portal bridge1.04. If this is your own implementation, can you please post the code? init-param namePortletResourceURLFactory/name valuewicket.tetst.common.JbossPortletResourceURLFactory/value /init-param - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RadioChoice : default choice ?
Thanks for the suggestion (to hit the Java Books, further), Per. I'm sure
that is sage advice.
However, just to clarify...
- I am aware that RadioChoice *is* a different Type than String
- my question: how is a RadioChoice value converted back and forth with
a String?
- It appears (to me) that RadioChoice is a Wicket Class (hence my question
to Wicket Forum)
Regarding Learning Path...
I am accustomed to jumping around when learning and when I came across
Wicket, it appeared to be a superior way to incorporate Java in a web
environment. Thus, I have not studied any of the Swing stuff that most of
the books contain. IMHO, I think Wicket would be an outstanding paradigm
from which to *teach* Java. After all, the web is a very probable
deployment platform for new Java projects. If Wicket *is* the *way*, I
think there is a huge opportunity to train and indoctrinate new Java
programmers, using Wicket from the get-go. For me, what has been confusing
has been distinguishing where Wicket is deviating from standard Java. I
sense that it could all come together quite nicely (for a java newbie), if
beginner 'Java, the Wicket Way' resources were available.
Thanks - Scott
Newgro wrote:
Am Freitag, 18. Januar 2008 23:43:18 schrieb scottomni:
private RadioChoice genderChoice;
public RadioChoice getGender(){
return genderChoice.getModelObjectAsString();
}
public void setGender(){
this.genderChoice = Male;
}
Both of my Methods fail, due to incompatible Types.
The cause of this is that Male is of type String and genderChoice is of
type
RadioChoice. But you can't say that an apple (RadioChoice) is an (=)
orange
(String).
I would suggest, that you start with a good java book. Wicket is not the
right
place to start learning java. It's more a good start learning
web-development.
Hence, I don't get
what I need to do to display a RadioChoice (on a Form) and Get/Set the
values (which I will be storing in a database). Additional note: I am
picked up 'getModelObjectAsString' from a Login Example.
The example you should understand is here
http://www.wicketstuff.org/wicket13/forminput/
There is a link in the upper right corner with source code. The classes
FormInput.java and FormInputModel.java should help you out.
Otherwise i really appriciate that you know the java basics before you
start
with wicket development. It makes it easier for everyone :-)
Cheers
Per
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Re: Override tag name in html fragment?
@Override
protected final void onComponentTag(final ComponentTag tag) {
tag.setName(input);
tag.put(type, text);
super.onComponentTag(tag);
}
Seems to do what I want but is this a valid extension point? In
PasswordTextBox and ListChoice it is marked final...? I don't want to stitch
my client up with something that is going to break with the next version of
Wicket. So although means extra dom elements on the browser and more
component instances on the server am I better off wrapping the raw
components?
Cheers
Sam
Sam Hough wrote:
We want to switch an input field between input type=text and textarea
depending on how large the existing data is. Is there any way to do this
without needing a spurious placeholder element? ie We would rather not
have a span wicket:id=textInput but rather just get the text or
textarea element in the final HTML .
So anything I can do in onComponentTag etc to change the tag name in the
HTML file?
Cheers
Sam
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parsevelocity template
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parse directive in velocity template failing
I am using a velocity template, and within it would like to use velocity's parse directive (to include another template within the current template) but it complains that it can not find the template in velocity's TEMPLATE_ROOT. I have triple-checked that the template is in the same directory as all of my other working templates. Anyone know why velocity can't find a template when using parse ? Does Wicket specify its own template location? If so, does anyone know where the default Velocity TEMPLATE_ROOT would be? http://velocity.apache.org/engine/devel/user-guide.html#parse Velocity's Parse Directive TIA -- View this message in context: http://www.nabble.com/%22parse%22-directive-in-velocity-template-failing-tp14999823p14999823.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How to change the style of navigator in PageableViewList
Extend PagingNavigator. I made a custom one so I can use everywhere:
It looks something like this
First Prev 1 2 3 4 Next Last
The active page will be in Red and italics.
You can make it anything you want by changing the HTML and/or CSS. Hope it
works for you.
Java - CustomPagingNavigator.java
import org.apache.wicket.markup.html.navigation.paging.PagingNavigator;
import org.apache.wicket.markup.html.navigation.paging.IPageable;
import org.apache.wicket.markup.html.navigation.paging.IPagingLabelProvider;
public class CustomPagingNavigator extends PagingNavigator{
private static final long serialVersionUID = 1L;
// First PagingNavigator constructor
public CustomPagingNavigator (String id, IPageable pageable) {
super(id, pageable);
}
// Second PagingNavigator constructor
public CustomPagingNavigator (String id, IPageable pageable,
IPagingLabelProvider labelProvider) {
super(id, pageable, labelProvider);
}
}
HTML - CustomPagingNavigator.html
!-- This is a customization of the wicket component PagingNavigator.html
It changes the following defaults
is now First
is now Last
is now Prev
is now Next
You will also need to copy CustomPagingNavigator.css to the root of your
web app
and @include it in your main style sheet. See .css file
--
html xmlns:wicket
body
wicket:panel
First Prev
# 1
Next Last
/wicket:panel
/body
/html
CSS - CustomPagingNavigator.css
/* Copy this file to the root of the web app
/* Use the following in the main style sheet to import these specs*/
/* @import url(CustomPagingNavigator.css);*/
/* Data Navigator*/
.navigator {color:red}
.navigator a:link, a:visited, a:active {color:blue;text-decoration:none;}
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Tip:ServletContext from WicketFilter
Well, I have started migrating some code to 1.3, however i had some STOP-AND-CONFIRM situation In 1.2.x ServletContext context = Application.getWicketServlet().getServletContext() ? doSomethingWithContext(context); Migrating to 1.3.x ServletContext context = Application.getWicketFilter().getFilterConfig().getServletContext() ? doSomethingWithContext(context); I guess by doing this, my previous code wont break, even though there is no WicketServlet configured in my web.xml? Or must I configure a WicketServlet to be able to do this thanks
Re: Tip:ServletContext from WicketFilter
that should still work. On Jan 21, 2008 4:42 PM, Ayodeji Aladejebi [EMAIL PROTECTED] wrote: Well, I have started migrating some code to 1.3, however i had some STOP-AND-CONFIRM situation In 1.2.x ServletContext context = Application.getWicketServlet ().getServletContext() ? doSomethingWithContext(context); Migrating to 1.3.x ServletContext context = Application.getWicketFilter().getFilterConfig().getServletContext() ? doSomethingWithContext(context); I guess by doing this, my previous code wont break, even though there is no WicketServlet configured in my web.xml? Or must I configure a WicketServlet to be able to do this thanks t
Re: Different views in wicket
try get variation... Mathias P.W Nilsson wrote: Hi! I'm developing a site that has different views and languages. How does this fit in the wicket framework? When adding a WebPage you get a default .html view. Is there anyway on having multiple views for a wicket page? How do you develop a site with same model but different views? // Mathias -- Nino Martinez Wael Java Specialist @ Jayway DK http://www.jayway.dk +45 2936 7684 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RadioChoice : default choice ?
Scott, To answer your last question, to set a selected value on the RadioChoice, you must set the PropertyModel's value to what you want selected. One thing that took me a while to figure out personally (and I have been programming in java for several years) is that the Object you set in the PropertyModel must be of the same type (class) as the objects in your list of choices. This is what Per was referring to. So if you have a list of Integers as choices, set the propertymodel to an integer. If you instead have a more complex Object (say MyChoiceObject) for your choices you use that. To render the choices, Wicket by default will just do ToString on the Object inthe choices list, unless you create an IChoiceRenderer. In any event, you need to set the PropertyModel's object to an object that is int he List of choices to preselect one of the objects. The example below is a good on, you should look at the RadioChoice and DropDownChoice, since they both use the same idea with their propertymodels. The point is that at some time, Wicket will try to cast one of the objects in the list into the variable in the propertymodel, so they have to have the same type. Hope this helps... -Clay Newgro wrote: The example you should understand is here http://www.wicketstuff.org/wicket13/forminput/ There is a link in the upper right corner with source code. The classes FormInput.java and FormInputModel.java should help you out. -- View this message in context: http://www.nabble.com/RadioChoice-%3A-default-choice---tp14876844p15001375.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: create new model object of a Form from one of its FormComp values??
On Jan 20, 2008 8:14 PM, Igor Vaynberg [EMAIL PROTECTED] wrote: personally i would map the form to a bean, and then in onsubmit() transfer those properties to an instance of your domain object. Igor, could you please tell in short how is this better than just get data form the models of each component in onsubmit()? I'm doing same thing within my app and was wondering if I should create a bean just for form data extraction purposes. -- sp
Re: create new model object of a Form from one of its FormComp values??
Having a bean makes things explicit. Getting stuff from a text component directly is very read unfriendly. See it as a small investment in maintenance. You will thank yourself later for taking the 1 minute to generate the bean :-) But it is all a matter of taste and one can argue about that for ages. Whatever gets the job done and is maintainable in 2 years from now is the winner imo. What that means for you, that is for you to decide :) Martijn On 1/21/08, Sergey Podatelev [EMAIL PROTECTED] wrote: On Jan 20, 2008 8:14 PM, Igor Vaynberg [EMAIL PROTECTED] wrote: personally i would map the form to a bean, and then in onsubmit() transfer those properties to an instance of your domain object. Igor, could you please tell in short how is this better than just get data form the models of each component in onsubmit()? I'm doing same thing within my app and was wondering if I should create a bean just for form data extraction purposes. -- sp -- Buy Wicket in Action: http://manning.com/dashorst Apache Wicket 1.3.0 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.0
Re: Different views in wicket
I don't understand your reply. Can you please explain? -- View this message in context: http://www.nabble.com/Different-views-in-wicket-tp14997475p15002034.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Different views in wicket
Mathias P.W Nilsson schreef: I don't understand your reply. Can you please explain? Each template (html) file can come in variations. E.g HomePage_green.html. In HomePage.java you can call setVariation(green). Does that help? Regards, Erik. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Different views in wicket
wicket tries to load localized files first. so if you have MyPage.class and you are in german locale the loading order would be MyPage_DE_de.html MyPage_DE.html MyPage.html then there are also variations, if your page.getvariation() returns foo then the loading order is MyPage_foo_DE_de.html MyPage_foo_DE.html MyPage_foo.html MyPage_DE_de.html MyPage_DE.html MyPage.html there is also session.set/getstyle() which is just like variation but will set the style on session-level instead of page-level. -igor On Jan 21, 2008 5:32 AM, Mathias P.W Nilsson [EMAIL PROTECTED] wrote: Hi! I'm developing a site that has different views and languages. How does this fit in the wicket framework? When adding a WebPage you get a default .html view. Is there anyway on having multiple views for a wicket page? How do you develop a site with same model but different views? // Mathias -- View this message in context: http://www.nabble.com/Different-views-in-wicket-tp14997475p14997475.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Different views in wicket
On Jan 21, 2008 9:29 AM, Erik van Oosten [EMAIL PROTECTED] wrote: Mathias P.W Nilsson schreef: I don't understand your reply. Can you please explain? Each template (html) file can come in variations. E.g HomePage_green.html. In HomePage.java you can call setVariation(green). Yes. And localized files are served automatically. See the form input example of wicket-examples for an example of that. And finally, stop by here: http://cwiki.apache.org/WICKET/localization-and-skinning-of-applications.html Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: create new model object of a Form from one of its FormComp values??
it gives you the advantage of being able to construct your domain objects easily: new Person(personBean); you also dont have to access the form components directly to poll their models, to me this is a plus. -igor On Jan 21, 2008 9:00 AM, Sergey Podatelev [EMAIL PROTECTED] wrote: On Jan 20, 2008 8:14 PM, Igor Vaynberg [EMAIL PROTECTED] wrote: personally i would map the form to a bean, and then in onsubmit() transfer those properties to an instance of your domain object. Igor, could you please tell in short how is this better than just get data form the models of each component in onsubmit()? I'm doing same thing within my app and was wondering if I should create a bean just for form data extraction purposes. -- sp - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tip:ServletContext from WicketFilter
there is a webapplication.getservletcontext(). -igor On Jan 21, 2008 7:42 AM, Ayodeji Aladejebi [EMAIL PROTECTED] wrote: Well, I have started migrating some code to 1.3, however i had some STOP-AND-CONFIRM situation In 1.2.x ServletContext context = Application.getWicketServlet().getServletContext() ? doSomethingWithContext(context); Migrating to 1.3.x ServletContext context = Application.getWicketFilter().getFilterConfig().getServletContext() ? doSomethingWithContext(context); I guess by doing this, my previous code wont break, even though there is no WicketServlet configured in my web.xml? Or must I configure a WicketServlet to be able to do this thanks - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Override tag name in html fragment?
its not that simple
input tag has no body input/ why textarea does textarea/textarea
also input stores its value in the value attr, textarea does it in its
body
that is why we have two separate components for this. you can of
course write your own that handles both cases properly...
-igor
On Jan 21, 2008 7:03 AM, Sam Hough [EMAIL PROTECTED] wrote:
@Override
protected final void onComponentTag(final ComponentTag tag) {
tag.setName(input);
tag.put(type, text);
super.onComponentTag(tag);
}
Seems to do what I want but is this a valid extension point? In
PasswordTextBox and ListChoice it is marked final...? I don't want to stitch
my client up with something that is going to break with the next version of
Wicket. So although means extra dom elements on the browser and more
component instances on the server am I better off wrapping the raw
components?
Cheers
Sam
Sam Hough wrote:
We want to switch an input field between input type=text and textarea
depending on how large the existing data is. Is there any way to do this
without needing a spurious placeholder element? ie We would rather not
have a span wicket:id=textInput but rather just get the text or
textarea element in the final HTML .
So anything I can do in onComponentTag etc to change the tag name in the
HTML file?
Cheers
Sam
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Re: create new model object of a Form from one of its FormComp values??
personally i would map the form to a bean, and then in onsubmit() transfer those properties to an instance of your domain object. Igor, could you please tell in short how is this better than just get data form the models of each component in onsubmit()? I'm doing same thing within my app and was wondering if I should create a bean just for form data extraction purposes. The good thing about using beans is that you can eliminate plumbing code. Instead of a massive copy action e.g. in your onSubmit, you can use a bean that is already populated with the values. I often use my domain objects directly - and I already have those objects anyway - so I save quite a bit of dumb copying code. Not everyone agrees with using domain objects directly though; ymmv. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Ext JS, form submit
Hi Flemming Just found this project: http://code.google.com/p/exttld/downloads/list It seems like they have made a ext tld project for java based frameworks. /Murat 2008/1/21, Murat Yücel [EMAIL PROTECTED]: Hi Flemming I have also tried to integrate ExtJS and wicket, but i dont think it is possible if you need to post or edit content on a page. The best way to post a form is to use xml between ext and wicket but then it doesnt makes sense to use wicket. Wicket needs markup, ext doesnt have any markup, thats why you can only use readonly ext widgets. Maybe the wicket team should do the same as google. Talk with the ext devs and make and integration. /Murat 2008/1/18, Flemming Boller [EMAIL PROTECTED]: Hi Having glazed at the ExtJS components you can not help, but feel I must try and integrate this into wicket. However when I started at trying to submit data to wicket from the Ext.form.FormPanel , lots of trouble appeared. I can not make Ext.FormPanel apply to a form tag , only a div tag. With div tag I can not in wicket use the Form Component. Also the id´s of elements change after Ext.onReady() has been performed, which I think is not good for wicket :-) Anyway the million dollar question is: Has anyone made a successfully 'form' submit from Ext to a wicket component ? Regards Flemming
Re: Is this safe?
On Jan 21, 2008 1:51 AM, Martijn Lindhout [EMAIL PROTECTED] wrote: ok, and if the session isn't thread safe, where do I store my temporal data? I think the session is a fine storage option for a shopping cart. Just synchronize the cart itself and you're fine. Or don't; it's rather unlikely you actually run into trouble if you ask me. Btw, add(new CartPanel(cart, new PropertyModel(this, session.cart))); also works, since components have a getSession method. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: We are adopting Wicket in our Organization
On Jan 21, 2008 1:54 AM, Joshua Jackson [EMAIL PROTECTED] wrote: SEAM is not that bad actually. Though it still has some quirks. Though most people will use it together with JSF, SEAM does have a different scope. You can use it by itself as a business component framework. There are two (kind of competing) wicket-stuff projects for this, and someone from JBoss is working on more official integration with Wicket. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Required tag types?
As an exercise I tried to write a CMS-like framework. It became
remarkably similiar and I had the same question. My factories produced
an editor and a display, apart from that they have almost the same
names as yours. I guess this almost qualifies as a FAQ :-)
2008/1/20, James Carman [EMAIL PROTECTED]:
The way my framework is set up, I've got a PropertyEditorFactory interface:
public interface PropertyEditorFactory
{
public Component createPropertyEditor(String componentName, Object
target, PropertyMetadata meta);
}
If I required my factory to return Panel objects instead, where would
the markup for those Panels come from? Would I have to write my own
Panel extension classes that have the different editor types in them
(TextEditorPanel, BooleanEditorPanel, etc.)?
On 1/20/08, Igor Vaynberg [EMAIL PROTECTED] wrote:
instead of using fragments you can use panels, which would make the
editors reusable across projects/pages.
as far as why the checks are there...
add(new TextField(foo));
div wicket:id=foo/
will end up with
div wicket:id=foo value=bar/ == not a very useful textbox
wicket does not mutate markup by default, so it will not mutate div
tag to input tag.
it also adds a level of error checking, making sure you add the right
components to the right places.
-igor
On Jan 20, 2008 1:50 PM, James Carman [EMAIL PROTECTED] wrote:
So, the key is to use Fragments? This is very similar to how we did
it in Trails. I would like to make this somewhat reusable in other
projects so that they can define their own editors without having to
change this framework code. I'm somewhat new to Wicket, so maybe I
just don't understand this all yet, but it seems to me like this
framework will only be able to use Fragments defined within the
current markup (the BeanEditPanel.html file). Is that true? In
Trails, we had the concept of a component address that you would
use to locate the editor component you want to use. So, it could be
defined in another page supplied by the user. Trails comes with a
default page containing all of its editors as Blocks (similar to a
Fragment). The default behavior returns components from this page as
the editors for properties. However, any client application could
define their own editor component blocks on some page and use those
also.
On 1/20/08, Gerolf Seitz [EMAIL PROTECTED] wrote:
have you seen Al's Bean Editor [0]?
this might give you a hint in the right direction.
regards,
gerolf
[0] http://herebebeasties.com/2007-08-17/wicket-bean-editor/
On Jan 20, 2008 10:17 PM, James Carman [EMAIL PROTECTED] wrote:
Is there any reason that components require that they be applied to
specific tag types in the markup files? I'm writing a little utility
which calculates at runtime what editor to use based on the property
type (a la Trails). So, I have no idea what type of tag to use. I
thought I'd just do this (the actual component is a TextField in this
case):
div wicket:id=editor /
But, I get the following error message:
org.apache.wicket.markup.MarkupException: Component editor must be
applied to a tag of type 'input', not 'div wicket:id=editor' (line
0, column 0)
If I change my markup to:
input type=text wicket:id=editor /
then it works. But, suppose a certain property requires a more
complicated editor component (maybe rich text, so I'd use something
like FCKEditor). Would that component be complaining that it's being
applied to an input tag? Is there any generic way to do this so
that all components will be happy at runtime with the markup? Is
there any way to relax that restriction?
James
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Re: bookmarkable link keep recreate the objects.
This is obviouly a huge performance issue. I wonder if it is. Java is optimized for creating objects, and creating new ones is often cheaper than reusing old ones if you take synchronization and lookups into account. Are you sure it is a bottleneck? If you haven't seen any actual performance problems (and determined that it is the web tier causing it, which is often unlikely given that accessing the back-end such as databases often take the majority of the processing of a request) you'd be wasting your time. Premature optimization is evil :-) If you're still unconvinced, take a look at org.apache.wicket.examples.staticpages in wicket-examples; it might do what you want. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: create new model object of a Form from one of its FormComp values??
Thanks to everyone for their comments Igor, Assuming I use a bean, could you please give me a bit more detail on your suggestion? I want the model object of the editor Form to be the newly-created Account, so that other objects can simply call getModelObject() on the editor like normal and get the correct (new) value. Do I simply set the new Account as the model object of the editor Form? In onSubmit(), would I code something like the following? Account accountBean = (Account)getModelObject(); //bean updated with values from FormComponents Account newAccount = Account(accountBean ); //copy constructor using bean setModelObject(newAccount); RDC personally i would map the form to a bean, and then in onsubmit() transfer those properties to an instance of your domain object. -- View this message in context: http://www.nabble.com/create-new-model-object-of-a-Form-from-one-of-its-FormComp-values---tp14983110p15004311.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: create new model object of a Form from one of its FormComp values??
yep, that will work. -igor On Jan 21, 2008 11:17 AM, infodoc [EMAIL PROTECTED] wrote: Thanks to everyone for their comments Igor, Assuming I use a bean, could you please give me a bit more detail on your suggestion? I want the model object of the editor Form to be the newly-created Account, so that other objects can simply call getModelObject() on the editor like normal and get the correct (new) value. Do I simply set the new Account as the model object of the editor Form? In onSubmit(), would I code something like the following? Account accountBean = (Account)getModelObject(); //bean updated with values from FormComponents Account newAccount = Account(accountBean ); //copy constructor using bean setModelObject(newAccount); RDC personally i would map the form to a bean, and then in onsubmit() transfer those properties to an instance of your domain object. -- View this message in context: http://www.nabble.com/create-new-model-object-of-a-Form-from-one-of-its-FormComp-values---tp14983110p15004311.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RadioChoice : default choice ?
Thanks Clay. I think I have reached a point in Wicket that is providing (me) the motivation to go 'back' to the Java Book and push forward (through the java learning curve). I'm getting there, slowly but surely. ;-) In the process, it looks like I will be familiarizing myself with the Swing library -- which, will probably enhance my appreciation (and understanding) of Wicket. Scott cblehman wrote: Scott, To answer your last question, to set a selected value on the RadioChoice, you must set the PropertyModel's value to what you want selected. One thing that took me a while to figure out personally (and I have been programming in java for several years) is that the Object you set in the PropertyModel must be of the same type (class) as the objects in your list of choices. This is what Per was referring to. So if you have a list of Integers as choices, set the propertymodel to an integer. If you instead have a more complex Object (say MyChoiceObject) for your choices you use that. To render the choices, Wicket by default will just do ToString on the Object inthe choices list, unless you create an IChoiceRenderer. In any event, you need to set the PropertyModel's object to an object that is int he List of choices to preselect one of the objects. The example below is a good on, you should look at the RadioChoice and DropDownChoice, since they both use the same idea with their propertymodels. The point is that at some time, Wicket will try to cast one of the objects in the list into the variable in the propertymodel, so they have to have the same type. Hope this helps... -Clay Newgro wrote: The example you should understand is here http://www.wicketstuff.org/wicket13/forminput/ There is a link in the upper right corner with source code. The classes FormInput.java and FormInputModel.java should help you out. -- View this message in context: http://www.nabble.com/RadioChoice-%3A-default-choice---tp14876844p15004489.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: create new model object of a Form from one of its FormComp values??
its simply easier to say: bean.getdate() if you are using a bean, or just date if you are binding to a property on the form subclass vs (Date)textbox.getModelObject(); which requires you to keep a reference to the textbox component anyways. -igor On Jan 21, 2008 11:42 AM, Sergey Podatelev [EMAIL PROTECTED] wrote: On Jan 21, 2008 9:25 PM, Eelco Hillenius [EMAIL PROTECTED] wrote: Instead of a massive copy action e.g. in your onSubmit, you can use a bean that is already populated with the values. I do understand advantages of using bean with CompoundPropertyModel, my question was related to the situation when you are forced to create your target object after the form is submitted. For instance, when you create different kinds of objects based on what exactly was submitted, or when constructor of the target object takes certain values and there're no setters for those values. Or, like in my situation, when both of those restrictions apply. Of course, maybe I'm missing something, and there's also a way to use this approach even in cases described above. -- sp - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RadioChoice : default choice ?
In the process, it looks like I will be familiarizing myself with the Swing library -- which, will probably enhance my appreciation (and understanding) of Wicket. Getting familiar with Swing will almost certainly help you get Wicket. Just keep in mind that with Swing, you would update values by 'pushing' them (for which you'd typically make heave use of the observer pattern, e.g. using PropertyChangeListeners etc), whereas with Wicket you would rely on the request cycle doing it for you (we often call that 'pull' and it is in fact an example of Inversion of Control, since you let your model objects being updated by the framework rather than pushing out changes to the framework yourself). Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Override HTML in html fragment
We want to switch an input field between input type=text and textarea depending on how large the existing data is. Is there any way to do this without needing a spurious placeholder element? ie We would rather not have a but rather just get the text or textarea in the final HTML . You could create a custom form component that can both be a text area or a text field. So anything I can do in onComponentTag etc to change the tag name in the HTML file? Yep. From the top of my head, you can do this with tag#setName Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RadioChoice : default choice ?
Getting familiar with Swing will almost certainly help you get Wicket. Just keep in mind that with Swing, you would update values by 'pushing' them (for which you'd typically make heave use of the observer pattern, e.g. using PropertyChangeListeners etc), whereas with Wicket you would rely on the request cycle doing it for you (we often call that 'pull' and it is in fact an example of Inversion of Control, since you let your model objects being updated by the framework rather than pushing out changes to the framework yourself). Btw. on that issue you can checkout for the jgoodies binding framework. It has similiar concepts like wicket - but is for swing components. But i don't want to hijack this thread :-) Cheers Per - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Required tag types?
Or, maybe we should start a new project (or a Wicket subproject) to take
care of this common need.
On 1/21/08, Johan Maasing [EMAIL PROTECTED] wrote:
As an exercise I tried to write a CMS-like framework. It became
remarkably similiar and I had the same question. My factories produced
an editor and a display, apart from that they have almost the same
names as yours. I guess this almost qualifies as a FAQ :-)
2008/1/20, James Carman [EMAIL PROTECTED]:
The way my framework is set up, I've got a PropertyEditorFactory
interface:
public interface PropertyEditorFactory
{
public Component createPropertyEditor(String componentName, Object
target, PropertyMetadata meta);
}
If I required my factory to return Panel objects instead, where would
the markup for those Panels come from? Would I have to write my own
Panel extension classes that have the different editor types in them
(TextEditorPanel, BooleanEditorPanel, etc.)?
On 1/20/08, Igor Vaynberg [EMAIL PROTECTED] wrote:
instead of using fragments you can use panels, which would make the
editors reusable across projects/pages.
as far as why the checks are there...
add(new TextField(foo));
div wicket:id=foo/
will end up with
div wicket:id=foo value=bar/ == not a very useful textbox
wicket does not mutate markup by default, so it will not mutate div
tag to input tag.
it also adds a level of error checking, making sure you add the right
components to the right places.
-igor
On Jan 20, 2008 1:50 PM, James Carman [EMAIL PROTECTED]
wrote:
So, the key is to use Fragments? This is very similar to how we did
it in Trails. I would like to make this somewhat reusable in other
projects so that they can define their own editors without having
to
change this framework code. I'm somewhat new to Wicket, so maybe I
just don't understand this all yet, but it seems to me like this
framework will only be able to use Fragments defined within the
current markup (the BeanEditPanel.html file). Is that true? In
Trails, we had the concept of a component address that you would
use to locate the editor component you want to use. So, it could be
defined in another page supplied by the user. Trails comes with a
default page containing all of its editors as Blocks (similar to a
Fragment). The default behavior returns components from this page
as
the editors for properties. However, any client application could
define their own editor component blocks on some page and use those
also.
On 1/20/08, Gerolf Seitz [EMAIL PROTECTED] wrote:
have you seen Al's Bean Editor [0]?
this might give you a hint in the right direction.
regards,
gerolf
[0] http://herebebeasties.com/2007-08-17/wicket-bean-editor/
On Jan 20, 2008 10:17 PM, James Carman [EMAIL PROTECTED]
wrote:
Is there any reason that components require that they be applied
to
specific tag types in the markup files? I'm writing a little
utility
which calculates at runtime what editor to use based on the
property
type (a la Trails). So, I have no idea what type of tag to
use. I
thought I'd just do this (the actual component is a TextField in
this
case):
div wicket:id=editor /
But, I get the following error message:
org.apache.wicket.markup.MarkupException: Component editor must
be
applied to a tag of type 'input', not 'div wicket:id=editor'
(line
0, column 0)
If I change my markup to:
input type=text wicket:id=editor /
then it works. But, suppose a certain property requires a more
complicated editor component (maybe rich text, so I'd use
something
like FCKEditor). Would that component be complaining that it's
being
applied to an input tag? Is there any generic way to do this
so
that all components will be happy at runtime with the
markup? Is
there any way to relax that restriction?
James
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Re: RadioChoice : default choice ?
On Jan 21, 2008 1:08 PM, Per Newgro [EMAIL PROTECTED] wrote: Getting familiar with Swing will almost certainly help you get Wicket. Just keep in mind that with Swing, you would update values by 'pushing' them (for which you'd typically make heave use of the observer pattern, e.g. using PropertyChangeListeners etc), whereas with Wicket you would rely on the request cycle doing it for you (we often call that 'pull' and it is in fact an example of Inversion of Control, since you let your model objects being updated by the framework rather than pushing out changes to the framework yourself). Btw. on that issue you can checkout for the jgoodies binding framework. It has similiar concepts like wicket - but is for swing components. But i don't want to hijack this thread :-) I've never used it myself, but I have heard good things about it. So yeah Scott, check it out :-) Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Required tag types?
Yes that would be fun and a great way to learn more wicket. Are you
doing a fork of trails (wrails)?
Primarily what I am interested in is web content management and
publishing. I'm looking to replace/enhance a legacy system that bases
its' rendering on velocity or XML-based views. As a start I would
like to write a simple (but functional) publishing system based on
wicket. What I'm looking for is coding specific editors and display
components based on the content type. The content type is, I guess,
basically a domain object like editorial, flash and so on. Does it
sound like enough overlap with your interests to actually start a
project?
2008/1/21, James Carman [EMAIL PROTECTED]:
Or, maybe we should start a new project (or a Wicket subproject) to take
care of this common need.
On 1/21/08, Johan Maasing [EMAIL PROTECTED] wrote:
As an exercise I tried to write a CMS-like framework. It became
remarkably similiar and I had the same question. My factories produced
an editor and a display, apart from that they have almost the same
names as yours. I guess this almost qualifies as a FAQ :-)
2008/1/20, James Carman [EMAIL PROTECTED]:
The way my framework is set up, I've got a PropertyEditorFactory
interface:
public interface PropertyEditorFactory
{
public Component createPropertyEditor(String componentName, Object
target, PropertyMetadata meta);
}
If I required my factory to return Panel objects instead, where would
the markup for those Panels come from? Would I have to write my own
Panel extension classes that have the different editor types in them
(TextEditorPanel, BooleanEditorPanel, etc.)?
On 1/20/08, Igor Vaynberg [EMAIL PROTECTED] wrote:
instead of using fragments you can use panels, which would make the
editors reusable across projects/pages.
as far as why the checks are there...
add(new TextField(foo));
div wicket:id=foo/
will end up with
div wicket:id=foo value=bar/ == not a very useful textbox
wicket does not mutate markup by default, so it will not mutate div
tag to input tag.
it also adds a level of error checking, making sure you add the right
components to the right places.
-igor
On Jan 20, 2008 1:50 PM, James Carman [EMAIL PROTECTED]
wrote:
So, the key is to use Fragments? This is very similar to how we did
it in Trails. I would like to make this somewhat reusable in other
projects so that they can define their own editors without having
to
change this framework code. I'm somewhat new to Wicket, so maybe I
just don't understand this all yet, but it seems to me like this
framework will only be able to use Fragments defined within the
current markup (the BeanEditPanel.html file). Is that true? In
Trails, we had the concept of a component address that you would
use to locate the editor component you want to use. So, it could be
defined in another page supplied by the user. Trails comes with a
default page containing all of its editors as Blocks (similar to a
Fragment). The default behavior returns components from this page
as
the editors for properties. However, any client application could
define their own editor component blocks on some page and use those
also.
On 1/20/08, Gerolf Seitz [EMAIL PROTECTED] wrote:
have you seen Al's Bean Editor [0]?
this might give you a hint in the right direction.
regards,
gerolf
[0] http://herebebeasties.com/2007-08-17/wicket-bean-editor/
On Jan 20, 2008 10:17 PM, James Carman [EMAIL PROTECTED]
wrote:
Is there any reason that components require that they be applied
to
specific tag types in the markup files? I'm writing a little
utility
which calculates at runtime what editor to use based on the
property
type (a la Trails). So, I have no idea what type of tag to
use. I
thought I'd just do this (the actual component is a TextField in
this
case):
div wicket:id=editor /
But, I get the following error message:
org.apache.wicket.markup.MarkupException: Component editor must
be
applied to a tag of type 'input', not 'div wicket:id=editor'
(line
0, column 0)
If I change my markup to:
input type=text wicket:id=editor /
then it works. But, suppose a certain property requires a more
complicated editor component (maybe rich text, so I'd use
something
like FCKEditor). Would that component be complaining that it's
being
applied to an input tag? Is there any generic way to do this
so
that all components will be happy at runtime with the
markup? Is
there any way to relax that restriction?
James
Add row to list of items on a page dynamically via ajax without repainting whole list
Hi I want to add a new row on my page using ajax, without having to repaint the complete list already being displayed on the page. This i want to reduce the ajax payload;any help on how i can do this?
Re: Required tag types?
Well, custom editor components based on object type sounds in scope for what
I have in mind. And, yes, I'm planning on implementing something similar to
Trails using Wicket (and I was planning on calling it wails).
On 1/21/08, Johan Maasing [EMAIL PROTECTED] wrote:
Yes that would be fun and a great way to learn more wicket. Are you
doing a fork of trails (wrails)?
Primarily what I am interested in is web content management and
publishing. I'm looking to replace/enhance a legacy system that bases
its' rendering on velocity or XML-based views. As a start I would
like to write a simple (but functional) publishing system based on
wicket. What I'm looking for is coding specific editors and display
components based on the content type. The content type is, I guess,
basically a domain object like editorial, flash and so on. Does it
sound like enough overlap with your interests to actually start a
project?
2008/1/21, James Carman [EMAIL PROTECTED]:
Or, maybe we should start a new project (or a Wicket subproject) to take
care of this common need.
On 1/21/08, Johan Maasing [EMAIL PROTECTED] wrote:
As an exercise I tried to write a CMS-like framework. It became
remarkably similiar and I had the same question. My factories produced
an editor and a display, apart from that they have almost the same
names as yours. I guess this almost qualifies as a FAQ :-)
2008/1/20, James Carman [EMAIL PROTECTED]:
The way my framework is set up, I've got a PropertyEditorFactory
interface:
public interface PropertyEditorFactory
{
public Component createPropertyEditor(String componentName, Object
target, PropertyMetadata meta);
}
If I required my factory to return Panel objects instead, where
would
the markup for those Panels come from? Would I have to write my own
Panel extension classes that have the different editor types in them
(TextEditorPanel, BooleanEditorPanel, etc.)?
On 1/20/08, Igor Vaynberg [EMAIL PROTECTED] wrote:
instead of using fragments you can use panels, which would make
the
editors reusable across projects/pages.
as far as why the checks are there...
add(new TextField(foo));
div wicket:id=foo/
will end up with
div wicket:id=foo value=bar/ == not a very useful textbox
wicket does not mutate markup by default, so it will not mutate
div
tag to input tag.
it also adds a level of error checking, making sure you add the
right
components to the right places.
-igor
On Jan 20, 2008 1:50 PM, James Carman [EMAIL PROTECTED]
wrote:
So, the key is to use Fragments? This is very similar to how we
did
it in Trails. I would like to make this somewhat reusable in
other
projects so that they can define their own editors without
having
to
change this framework code. I'm somewhat new to Wicket, so
maybe I
just don't understand this all yet, but it seems to me like this
framework will only be able to use Fragments defined within the
current markup (the BeanEditPanel.html file). Is that true? In
Trails, we had the concept of a component address that you
would
use to locate the editor component you want to use. So, it
could be
defined in another page supplied by the user. Trails comes with
a
default page containing all of its editors as Blocks (similar
to a
Fragment). The default behavior returns components from this
page
as
the editors for properties. However, any client application
could
define their own editor component blocks on some page and use
those
also.
On 1/20/08, Gerolf Seitz [EMAIL PROTECTED] wrote:
have you seen Al's Bean Editor [0]?
this might give you a hint in the right direction.
regards,
gerolf
[0] http://herebebeasties.com/2007-08-17/wicket-bean-editor/
On Jan 20, 2008 10:17 PM, James Carman
[EMAIL PROTECTED]
wrote:
Is there any reason that components require that they be
applied
to
specific tag types in the markup files? I'm writing a
little
utility
which calculates at runtime what editor to use based on
the
property
type (a la Trails). So, I have no idea what type of tag to
use. I
thought I'd just do this (the actual component is a
TextField in
this
case):
div wicket:id=editor /
But, I get the following error message:
org.apache.wicket.markup.MarkupException: Component editor
must
be
applied to a tag of type 'input', not 'div
wicket:id=editor'
(line
0, column 0)
If I change my markup to:
input type=text wicket:id=editor /
then it works. But, suppose a certain property requires a
more
Re: Required tag types?
On Jan 21, 2008 2:34 PM, James Carman [EMAIL PROTECTED] wrote: Well, custom editor components based on object type sounds in scope for what I have in mind. And, yes, I'm planning on implementing something similar to Trails using Wicket (and I was planning on calling it wails). I'm not sure how well it works, but before anyone jumps into a code rage, it might be a good idea to check out Grail's Wicket support: http://grails.codehaus.org/Wicket+Plugin. Even if it is not perfect yet (it might be, I don't know), it might be a more efficient use of your time to improve the plugin rather than starting from scratch. Unless you don't like Grails of course. Cheers, Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: bookmarkable link keep recreate the objects.
Eelco Hillenius wrote: If you're still unconvinced, take a look at org.apache.wicket.examples.staticpages in wicket-examples; it might do what you want. Eelco This sounds like very similar question to http://www.nabble.com/Link-to-last-version-of-a-page-of-a-given-type-class.-td14994042.html Its like a page is designed to maintain state only while you operate components within it. Clicking on a link to the page instantiates a new one! (even tho old ones are kicking around in the page store or session) Sure the FAQ example could be static, but it may well have some state associated with it. Anyway, I've got a limited workaround. It seems like a commonly used concept. -- View this message in context: http://www.nabble.com/bookmarkable-link--keep-recreate-the-objects.-tp14997853p15009613.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: parse directive in velocity template failing
fattymelt, It used to work that you could jar up your templates and put them under WEB-INF/lib. If that doesn't work, create your own velocity.properties file and define the init-params velocityPropertiesFolder and velocity.properties in your web.xml. You can define there which loaders to use and what root the FileResourceLoader should use. Best of luck, fattymelt! On Jan 21, 2008 9:27 AM, fattymelt [EMAIL PROTECTED] wrote: I am using a velocity template, and within it would like to use velocity's parse directive (to include another template within the current template) but it complains that it can not find the template in velocity's TEMPLATE_ROOT. I have triple-checked that the template is in the same directory as all of my other working templates. Anyone know why velocity can't find a template when using parse ? Does Wicket specify its own template location? If so, does anyone know where the default Velocity TEMPLATE_ROOT would be? http://velocity.apache.org/engine/devel/user-guide.html#parse Velocity's Parse Directive TIA -- View this message in context: http://www.nabble.com/%22parse%22-directive-in-velocity-template-failing-tp14999823p14999823.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: bookmarkable link keep recreate the objects.
Thanks. I looked that source of the staticpages examples and even more troubled with it. It generates each static links via a costly markup object creation and attribute modification. In a base template page that may contain,say 50 such links, that would be displayed for all site (bookmarkable) pages, it would mean a lot of object creation/destruction just for a static markup. I saw a post about running out of wicket memory during stress test. I had quite a few times noticing the turnaround is quite slow in my app even though it is just a page with many constructed links, even though I do not have test suite to back it up. Would it be possible to turn a bookmarkale/stateless page object into a stateful page during a session once user first access it. After all, bookmarkable page link is for accessing the page when you return to it after ,say a few days. Once you access/create it, during the session, it should be considered a stateful. This is obviouly a huge performance issue. I wonder if it is. Java is optimized for creating objects, and creating new ones is often cheaper than reusing old ones if you take synchronization and lookups into account. Are you sure it is a bottleneck? If you haven't seen any actual performance problems (and determined that it is the web tier causing it, which is often unlikely given that accessing the back-end such as databases often take the majority of the processing of a request) you'd be wasting your time. Premature optimization is evil :-) If you're still unconvinced, take a look at org.apache.wicket.examples.staticpages in wicket-examples; it might do what you want. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Required tag types?
Eelco, I will take a look at it, but I'm not big on Groovy or Grails. I decided to write the Wails framework as an exercise in learning Wicket and if it turned out to be something folks might like, then they could feel free to do so. I was somewhat active in the Tapestry (4.x versions) community for a while and Wicket has interested me for quite some time. James On 1/21/08, Eelco Hillenius [EMAIL PROTECTED] wrote: On Jan 21, 2008 2:34 PM, James Carman [EMAIL PROTECTED] wrote: Well, custom editor components based on object type sounds in scope for what I have in mind. And, yes, I'm planning on implementing something similar to Trails using Wicket (and I was planning on calling it wails). I'm not sure how well it works, but before anyone jumps into a code rage, it might be a good idea to check out Grail's Wicket support: http://grails.codehaus.org/Wicket+Plugin. Even if it is not perfect yet (it might be, I don't know), it might be a more efficient use of your time to improve the plugin rather than starting from scratch. Unless you don't like Grails of course. Cheers, Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Required tag types?
On Jan 21, 2008 4:48 PM, James Carman [EMAIL PROTECTED] wrote: Eelco, I will take a look at it, but I'm not big on Groovy or Grails. I decided to write the Wails framework as an exercise in learning Wicket and if it turned out to be something folks might like, then they could feel free to do so. I was somewhat active in the Tapestry (4.x versions) community for a while and Wicket has interested me for quite some time. Well, that's an excellent reason. I'm not crazy about Groovy myself tbh, though my opinion is heavily colored by my experiences years ago when it was still in alpha. Since then it got much better I hear. And there are plenty of people who seem to like Grails. Anyway, I don't want to hold you back on creating something fun for Wicket :-) We can give you write access to wicket-stuff if you want your project to live there. Cheers, Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: bookmarkable link keep recreate the objects.
On Jan 21, 2008 4:31 PM, [EMAIL PROTECTED] wrote: Thanks. I looked that source of the staticpages examples and even more troubled with it. It generates each static links via a costly markup object creation and attribute modification. In a base template page that may contain,say 50 such links, that would be displayed for all site (bookmarkable) pages, it would mean a lot of object creation/destruction just for a static markup. have you profiled how expensive creating these objects really is? i would be curious about the numbers you get. I saw a post about running out of wicket memory during stress test. was that because there was a memory leak in wicket code or in the user's code? I had quite a few times noticing the turnaround is quite slow in my app even though it is just a page with many constructed links, even though I do not have test suite to back it up. have you tried starting your app in deployment mode? development mode has quiet a lot of overhead which gets you better error reporting. Would it be possible to turn a bookmarkale/stateless page object into a stateful page during a session once user first access it. these pages are not created until accessed...so not sure what you mean After all, bookmarkable page link is for accessing the page when you return to it after ,say a few days. Once you access/create it, during the session, it should be considered a stateful. yes and it is, however, it is up to you to determine the scope that defines its statefulnes. you do this like you do with most other java objects - by holding onto its reference. for conversation scopes you pass the reference around into pages that define the conversation for session scope you should store that reference within session. This is obviouly a huge performance issue. really? maybe to make it obvious you should show some numbers so we can compare. maybe a graph...personally i love pie charts :) -igor - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Jboss Portal + Wicket (Portlet)
Finally, I got Wicket1.3 portlet working in JBoss portal 2.6.3 - after fixing a few bugs in JBoss's PortletWindowUtils class. When I tried the EditableLable AJAX component, I got following error using Firefox: Error: wicketAjaxGet is not defined Source File: http://localhost:8080/portal/auth/portal/default/default/Wicket13PortletWindow?mode=edit Line: 1 The error is different in I.E. - complaining about Wicket undefined. script type=text/javascript id=wicket-ajax-portlet-flag!--/*--![CDATA[/*!--*/ Wicket.portlet=true /*--]]*//script Süli Zsolt wrote: JbossPortletResourceURLFactory is my custom class. As far as I know Jboss Portal team hasn't implemented it yet, so I did the job (it's not a big thing though as u can see in my previous letter). So check my last letter for the code ... especially the part And my implementation of PortletResourceURLFactory ;). Good luck! PS: my surname is Zsolt ;) Markqt wrote: Hi Suli, Thanks much for the details. Where did you get calss JbossPortletResourceURLFactory? This is exactly what I am missing. I can't find it in jboss portal, wicket1.3 download, or apache portal bridge1.04. If this is your own implementation, can you please post the code? init-param namePortletResourceURLFactory/name valuewicket.tetst.common.JbossPortletResourceURLFactory/value /init-param - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/Jboss-Portal-%2B-Wicket-%28Portlet%29-tp14953943p15011074.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: bookmarkable link keep recreate the objects.
Would it be possible to turn a bookmarkale/stateless page object into a stateful page during a session once user first access it. these pages are not created until accessed...so not sure what you mean I meant once they are created, accessing it again (say hit refresh button on browser) should not result in a new page object recreation, instead using a way to locate the previous created object and rerender it as in a stateful page. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: bookmarkable link keep recreate the objects.
you are free to write your own coding strategy that checks for existence of these pages in session before creating a new instance. -igor On Jan 21, 2008 6:01 PM, [EMAIL PROTECTED] wrote: Would it be possible to turn a bookmarkale/stateless page object into a stateful page during a session once user first access it. these pages are not created until accessed...so not sure what you mean I meant once they are created, accessing it again (say hit refresh button on browser) should not result in a new page object recreation, instead using a way to locate the previous created object and rerender it as in a stateful page. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: bookmarkable link keep recreate the objects.
I see. I guess I need to dig through more info on usage of api.
But I just noticed the following perhaps you can point out
surprising (to me) issue right away.
It is a simple list view display with
class Test{
PageableListView listView = new PageableListView(records, new
PropertyModel(this, records),
rowsPerPage) {
public void populateItem(final ListItem listItem) {
final Object record = listItem.getModelObject();
public List getRecords(){
return a record list from db query
}
}
what I noticed that for each populateItem call, it would invokes
getRecords() (perhaps with further indexing). So it I have 1000 records
in db, it would issue 1000 query for the same result list.
What I am doing wrong here? I basically took an example class from wicket
website and replace the fixed record list with a db query and
could not explain the extreem slowness until I found out this problem.
you are free to write your own coding strategy that checks for
existence of these pages in session before creating a new instance.
-igor
On Jan 21, 2008 6:01 PM, [EMAIL PROTECTED] wrote:
Would it be possible to turn a bookmarkale/stateless page object
into a stateful page during a session once user first access it.
these pages are not created until accessed...so not sure what you mean
I meant once they are created, accessing it again (say hit refresh button
on browser) should
not result in a new page object recreation, instead using a way to
locate the previous created object and rerender it as in a stateful
page.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
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For additional commands, e-mail: [EMAIL PROTECTED]
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Re: bookmarkable link keep recreate the objects.
wicket is doing exactly what you told it to do
you call final Object record = listItem.getModelObject(); 1000 times
which in turns calls listviewmodel.getobject().get(index); where index
varies from 1 to 1000
listviewmodel is PropertyModel(this, records) so when its
getobject() is called (1000 times) it calls getrecords() method
thus your getrecords is called 1000 times - just like you have it setup.
you should read up on detachable models and loadable models - models
that cache a value for the duration of a request.
for example, if you replace new PropertyModel(this, records) with
new LoadableDetachableModel() { Object load() { return getRecords();
}}
getRecords() would only be called once per request.
also if you have read the javadoc of ListView you would have noticed
that it does not recommend using ListView with database driven data.
ListView is made to work with lists. in a list an item is identified
by its index, in a database rowset an item is identified by its
primary key.
you took an example that uses static data where getrecords() is a
cheap call and expect it to work with database data without
modifications - where getrecords() is an expensive call, dont you
think that is silly?
if you want to display database data i would look into DataView and
DataTable. there are plenty examples in
http://wicketstuff.org/wicket13/repeater/
-igor
On Jan 21, 2008 6:32 PM, [EMAIL PROTECTED] wrote:
I see. I guess I need to dig through more info on usage of api.
But I just noticed the following perhaps you can point out
surprising (to me) issue right away.
It is a simple list view display with
class Test{
PageableListView listView = new PageableListView(records, new
PropertyModel(this, records),
rowsPerPage) {
public void populateItem(final ListItem listItem) {
final Object record = listItem.getModelObject();
public List getRecords(){
return a record list from db query
}
}
what I noticed that for each populateItem call, it would invokes
getRecords() (perhaps with further indexing). So it I have 1000 records
in db, it would issue 1000 query for the same result list.
What I am doing wrong here? I basically took an example class from wicket
website and replace the fixed record list with a db query and
could not explain the extreem slowness until I found out this problem.
you are free to write your own coding strategy that checks for
existence of these pages in session before creating a new instance.
-igor
On Jan 21, 2008 6:01 PM, [EMAIL PROTECTED] wrote:
Would it be possible to turn a bookmarkale/stateless page object
into a stateful page during a session once user first access it.
these pages are not created until accessed...so not sure what you mean
I meant once they are created, accessing it again (say hit refresh
button
on browser) should
not result in a new page object recreation, instead using a way to
locate the previous created object and rerender it as in a stateful
page.
-
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For additional commands, e-mail: [EMAIL PROTECTED]
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For additional commands, e-mail: [EMAIL PROTECTED]
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Re: bookmarkable link keep recreate the objects.
On Jan 21, 2008 6:32 PM, [EMAIL PROTECTED] wrote:
I see. I guess I need to dig through more info on usage of api.
But I just noticed the following perhaps you can point out
surprising (to me) issue right away.
It is a simple list view display with
class Test{
PageableListView listView = new PageableListView(records, new
PropertyModel(this, records),
rowsPerPage) {
public void populateItem(final ListItem listItem) {
final Object record = listItem.getModelObject();
public List getRecords(){
return a record list from db query
}
}
The idea behind PageableListView is that it is backed by a list that
understands how to page. See for instance
http://wicket-stuff.svn.sourceforge.net/viewvc/wicket-stuff/branches/WICKET_1_2/wicket-contrib-data/src/java/wicket/contrib/data/model/PageableList.java?view=markup
However, nowadays IDataProvider and the repeaters that use it are a
better alternative to PageableListViews, amongst other reasons because
the paging is more explicit.
Eelco
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Re: bookmarkable link keep recreate the objects.
Got it.
On Jan 21, 2008 6:32 PM, [EMAIL PROTECTED] wrote:
I see. I guess I need to dig through more info on usage of api.
But I just noticed the following perhaps you can point out
surprising (to me) issue right away.
It is a simple list view display with
class Test{
PageableListView listView = new PageableListView(records, new
PropertyModel(this, records),
rowsPerPage) {
public void populateItem(final ListItem listItem) {
final Object record = listItem.getModelObject();
public List getRecords(){
return a record list from db query
}
}
The idea behind PageableListView is that it is backed by a list that
understands how to page. See for instance
http://wicket-stuff.svn.sourceforge.net/viewvc/wicket-stuff/branches/WICKET_1_2
/wicket-contrib-data/src/java/wicket/contrib/data/model/PageableList.java?view=
markup
However, nowadays IDataProvider and the repeaters that use it are a
better alternative to PageableListViews, amongst other reasons because
the paging is more explicit.
Eelco
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Re: bookmarkable link keep recreate the objects.
Thanks for the tip. It worked perfectly.
I do feel this could be a minor bug even for a fixed list
(might not be noticeable visually). At the time ListView is
created, it is provided with a predefined model object =this.getRecords()
which should be the state of the listview and this.getModel
should directly return this state. This is probably due to the program idiom
used.
wicket is doing exactly what you told it to do
you call final Object record = listItem.getModelObject(); 1000 times
which in turns calls listviewmodel.getobject().get(index); where index
varies from 1 to 1000
listviewmodel is PropertyModel(this, records) so when its
getobject() is called (1000 times) it calls getrecords() method
thus your getrecords is called 1000 times - just like you have it setup.
you should read up on detachable models and loadable models - models
that cache a value for the duration of a request.
for example, if you replace new PropertyModel(this, records) with
new LoadableDetachableModel() { Object load() { return getRecords();
}}
getRecords() would only be called once per request.
also if you have read the javadoc of ListView you would have noticed
that it does not recommend using ListView with database driven data.
ListView is made to work with lists. in a list an item is identified
by its index, in a database rowset an item is identified by its
primary key.
you took an example that uses static data where getrecords() is a
cheap call and expect it to work with database data without
modifications - where getrecords() is an expensive call, dont you
think that is silly?
if you want to display database data i would look into DataView and
DataTable. there are plenty examples in
http://wicketstuff.org/wicket13/repeater/
-igor
On Jan 21, 2008 6:32 PM, [EMAIL PROTECTED] wrote:
I see. I guess I need to dig through more info on usage of api.
But I just noticed the following perhaps you can point out
surprising (to me) issue right away.
It is a simple list view display with
class Test{
PageableListView listView = new PageableListView(records, new
PropertyModel(this, records),
rowsPerPage) {
public void populateItem(final ListItem listItem) {
final Object record = listItem.getModelObject();
public List getRecords(){
return a record list from db query
}
}
what I noticed that for each populateItem call, it would invokes
getRecords() (perhaps with further indexing). So it I have 1000 records
in db, it would issue 1000 query for the same result list.
What I am doing wrong here? I basically took an example class from wicket
website and replace the fixed record list with a db query and
could not explain the extreem slowness until I found out this problem.
you are free to write your own coding strategy that checks for
existence of these pages in session before creating a new instance.
-igor
On Jan 21, 2008 6:01 PM, [EMAIL PROTECTED] wrote:
Would it be possible to turn a bookmarkale/stateless page object
into a stateful page during a session once user first access it.
these pages are not created until accessed...so not sure what you mean
I meant once they are created, accessing it again (say hit refresh
button
on browser) should
not result in a new page object recreation, instead using a way to
locate the previous created object and rerender it as in a stateful
page.
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Re: parse directive in velocity template failing
Just to be sure... In the Wicket section of web.xml I am going to add the two init-params. One of which defines the folder in which to find my properties file, and the other is the actual filename. Then I can use that properties file to specify what my TEMPLATE_ROOT is. The only I don't get, is that I have working templates now that are in WEB-IN/templates. So, it isn't like velocity-contrib isn't finding them. So I'm not sure why the parse directive isn't looking there, too? James McLaughlin-3 wrote: fattymelt, It used to work that you could jar up your templates and put them under WEB-INF/lib. If that doesn't work, create your own velocity.properties file and define the init-params velocityPropertiesFolder and velocity.properties in your web.xml. You can define there which loaders to use and what root the FileResourceLoader should use. Best of luck, fattymelt! -- View this message in context: http://www.nabble.com/%22parse%22-directive-in-velocity-template-failing-tp14999823p15013060.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Add row to list of items on a page dynamically via ajax without repainting whole list
On 1/22/08, atul singh [EMAIL PROTECTED] wrote: Hi I want to add a new row on my page using ajax, without having to repaint the complete list already being displayed on the page. This i want to reduce the ajax payload;any help on how i can do this? Try this thread: http://www.nabble.com/Adding-item-to-ListView-over-Ajax---refresh-only-newest-row-td11272937.html
Re: Required tag types?
2008/1/22, Eelco Hillenius [EMAIL PROTECTED]: On Jan 21, 2008 4:48 PM, James Carman [EMAIL PROTECTED] wrote: Eelco, I will take a look at it, but I'm not big on Groovy or Grails. I decided to write the Wails framework as an exercise in learning Wicket and if it turned out to be something folks might like, then they could feel free to do so. I was somewhat active in the Tapestry (4.x versions) community for a while and Wicket has interested me for quite some time. I'm in the same spot, looking to learn more wicket (groovy - not so much). It would be fun to try to collect some editors (and in my case read-only displays) for specific classes. I guess that it would be a good idea to try to narrow that scope a bit. What I am after is in the end two applications, one delivery-side which is the site with published content. The other is the administrative site where you publish content. So far nothing special apart from that the look and feel should be consistent for display and editor components. I would like to have a registry of editors and display-components. The framework selects which editor or display to use based on the type of content. I guess this is where you actually get some benefit from such a framework. The dynamic selection of components based on type information. For my case it is enough to register editors with a key based on a java class at application start up. I guess that James might have another tack on how this should work (I haven't looked at Trails that much). Also, I would be perfectly happy to have a specific java class hierarchy representing the domain (perhaps rooted in some interface like 'Content' and ' PersistentContent'. I guess this is a bit different scope from Wails and stuff like Wicket Web Beans (http://wicketwebbeans.sourceforge.net/) So, to narrow the scope, I'm interested in creating a Component that looks at some (request) parameter to decide which content to look up in a backing store. It would select an appropriate editor or display based on the type of content. The editors should have a (somewhat) consistent Look and Feel. Judging from this mailing list there seems to be other people working on CMS-like frameworks. Perhaps others (apart from me and Mr. Carman) might be interested in something like this also? Cheers, Johan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
