codesmell.org

in case someone thought it was a good idea:
We’re delighted to introduce a new wicket component which will allow you to easily integrate Google Waves right into your application. Please meet GoogleWavePanel !
The idea of making this component came from a recent tutorial which aimed at clarifying the use of Google’s Wave Embed API.
http://blog.zenika.com/index.php?post/2010/02/03/Surf-the-Wave-with-Wicket-and-the-GoogleWavePanel

Wicket comes with some templating facilities. They’re often handy, especially when integrating JavaScript components.
Yet, for some reasons I don’t get, these functionalities aren’t much advertised. Anyway, let’s dig in !
Basically, this templating is about some text containing variables, for example ${variable}, whose values are provided through Java code.
Let’s take a simple example, a [...]

Hi !
We were some time ago at a presentation about hibernate (at a Karlsruhe JUG event). The presenter, Michael Plöd showed us a nice Hibernate statistics page. As you can bet, we went for reusing it
However, in doing so, some issues appeared, and in the end we thought the updated version could be [...]

from the javadoc:
Creates an image that is rendered by the Gravatar online service. Gravatars are user
icons that are registered by a central server and that can be used across the
internet with blogs, forums and other profile based websites.

The Gravatar requires the email address for which the gravatar image
needs to be [...]

Recently, on the Wicket-User mailing list:
What’s the best practice when using generics with models that take some
object but return another type of object?
examples:
When you have a collection and need to convert it to a list for listview
purposes.
to which mighty Igor replied:
 Java |  copy |? /** * Simplifies implementing wrapper models that adapt from model object of one type to [...]

Me again…
Well, I just wanted to speak about an issue for which I didn’t find any proper answer yet.
The matter is gui testing. Currently, at work, we do proper unit test for “framework level code”. By “framework code”, I mean code being in some utilities or services projects which are put there to be [...]

via Wicket 1.4.1 supports Ajax file uploads | Wicket in Action.
The Apache Wicket project is proud to announce the first maintenance release: Apache Wicket 1.4.1. The most notable change in this release is the transparent support for multipart form submissions via Ajax. Wicket is now smart enough to submit a form using a hidden iframe [...]

i just sent this bit to the list

[while this is] valid with about any wicket component that uses a JS lib, i´m making the jQuery case here:
as it is a good practice to add functions (aka plugins) to the jQuery object, including the jQuery script more than once in a page is not only [...]

Whenever you add extensive caching to your wicket resources, this might be awfully useful:
 Java |  copy |? Application.getResourceSettings().setAddLastModifiedTimeToResourceReferenceUrl(true);
which exactly does what you can get from the name

as we´re into bundling Wicket/JQuery-frontend components lately, we needed a way of automatically minimizing JavaScript on deployment.
luckily, there is an excellent mojo out there : http://alchim.sourceforge.net/yuicompressor-maven-plugin
the nice thing is, it does not only minify but also check and obfuscate, which turned out to be very handy!
if you´re bundling javascript (or even css, which it minimizes [...]

Hi
We had a strange issue here : we created a component opened for extension. For some reason it was working with a Label but not a MultilineLabel. Crazy isn’t it ?
It turned out we declare this “opened” component like this :

The user of it should just override a callback method like this :
 Java |  copy |?             @Override            protected Component createContentComponent(final [...]

disclaimer: don´t get me wrong. 90% of the time i like generics. most of the time it only starts getting weird, when you end up using something like
 Java |  copy |? IModel< List<EntityModel<Address<Person>>>> getAddressModels();
but hey, nothing is perfect.
recently stumbled over an easy to avoid mistake you can make introducing generics to your APIs. this tale is about Wicket, which [...]

Wicket is a well known serialization addict, and as such it’s quite often a topic when dealing with wicket pages and, especially, going back through the page map.
In doing so, we had recently the following surprise : the DefaultMutableTreeNode, a javax.swing.tree class, is used to to the current incarnation of the tree component in wicket. [...]

As I’ve written on the wicket jira, setGatherExtendedBrowserInfo doesn’t play well with Ajax. For the explanation, here are Igor 2 cents on it :
ajax doesnt work because probably the ajax request is redirected to
that page…that page is what gathers all the browser info through
javascript…

.
Maybe I am a bit picky, but to have such [...]

that was fun. not that i actually liked these bonbon-buttons, but the disclaimer on their page is hilarious.
having a second look, that layout-manager concept can be actually useful.

i just asked this on the Wicket user list:
we have a problem here, which we think might be a common one, so i´d like to discuss.
from time to time we create models (mostly LDMs) that are not actually reachable by components. (yes, you can argue that this is stupid, but it happens where 1:1 mapping [...]

Wicket 1.3.6 was released. The best news for me there is, that using Guice and persistent Sessions is probably going to work now (did not check yet.)

even though Gavin King expectedly disagrees, i find this article
a very useful benchmark. not that [...]

ahhh. doesn’t wicket offer a great model of programming webpages? isn’t it too easy to do things like this?

 Java |  copy |? add(new [...]

whenever you have any need for cron-like functionality within your java application, Quartz is the obvious chose for quite a long time now.
i did not need much of what quartz had to offer, so i [...]

Another Wicket Gem. Obvious but helpful.
 Java |  copy |? import org.apache.wicket.PageParameters;import org.apache.wicket.markup.ComponentTag;import org.apache.wicket.markup.html.link.BookmarkablePageLink;import org.apache.wicket.model.IModel; /*** @author Thijs Vonk**/public class AnchoredBookmarkablePageLink extends BookmarkablePageLink {  private static final long serialVersionUID = 1L;  private IModel stringAnchor;  public AnchoredBookmarkablePageLink(String id, Class pageClass, IModel anchor) { super(id, pageClass); this.stringAnchor = anchor; }  public AnchoredBookmarkablePageLink(String id, Class pageClass, PageParameters params, IModel [...]

The article is about Tapestry 4.1, not v5 as mentioned in the title.

[...]

Here
is an interesting interview with three of the wicket committers (or, should i say legends, [...]

if there is anyone suffering from

[...]

thinking twice, ajax-indicators are not at all eye-candy, but useful from an usablity perspective.

[...]

posted by mighty Igor on the Wicket-User list:

Here is a simple demonstration of how to prevent “Cross-Site Request Forgery”
[...]

This template for using a Breadcrumb-like Navigation really shows the beauty of stateful pages that separate wicket from those countless template-based frameworks.
[...]

This one is all about id <-> object mapping when using DropDowns:

 Java |  copy |? /** * @author igor vaynberg */public class DropDownIdChoice extends DropDownChoice{  [...]

Another little gem:

/**
[...]

Another very simple, yet incredibly helpful snippet:

[...]

while this blog happily ran on glassfish v1 for quite some time now, i have to admit switching back to caucho resin. the reason for this is simple: i will be using resin at work [...]

it happens quite often that, while browsing the Wicket mailing list, i stumble upon gems, that i fail to find or even remember when i could use them.
this really has to stop
the problem is: there [...]

i just released a simple
css-menu [...]

I filed another guice related issue at Wicket’s Jira
https://issues.apache.org/jira/browse/WICKET-1403 [...]

If you do not have a problem sending Data to Google (some have) and you don’t want to create fancy charts for your wicket application yourself,
[...]