RE: Components/Behaviour execution order

[Colin Rogers]

Cool - thanks Seb - I'll look into it...! :)

-Original Message-
From: Sebastien [mailto:seb...@gmail.com]
Sent: Thursday, 1 October 2015 6:13 PM
To: Patrick Davids 
Cc: users@wicket.apache.org
Subject: Re: Components/Behaviour execution order

Hi,

@Patrick
Yes, we had a behavior sequence order issue [1] that we just solved by calling 
super.onConfigure(component); at the end of #onConfigure.

@Colin
When I've complex cases, I am using the event bus. The key point is my magic 
AjaxPayload base class, so you can create ZStateChangedAjaxPayload extends 
AjaxPayload, sent from Z, and caught in Y#onEvent and/or any 
components/behaviors you want... I don't know if you already used the event bus 
in the past, but if it's not the case, you will like it! :)

public class AjaxPayload
{
private final AjaxRequestTarget target;

public AjaxPayload(AjaxRequestTarget target)
{
this.target = target;
}

public AjaxRequestTarget getTarget()
{
return this.target;
}

public void reload(Component... components)
{
this.getTarget().add(components);
}
}

Hope this helps,
Sebastien.

[1] https://github.com/sebfz1/wicket-jquery-ui/issues/43

On Thu, Oct 1, 2015 at 8:57 AM, Patrick Davids  wrote:

> Hi Col.,
> sometimes I try to cheat by using onBeforeRender() in such cases to 'fake'
> an order, because its called after onConfigure().
> But this has some restrictions concerning visibility issues of components.
> But in simple dependencies this sometimes works for me.
>
> I think somewhere in wickets jira is an issue for a similar problem,
> to feature defining a kind of order of behaviors.
> Unfort. I'm not able to find it right away.
>
> (@Sebastien: I think, we had such problem someday... do you remember
> maybe?)
>
> best regards
> Patrick
>
>
> Am 01.10.2015 um 06:27 schrieb Colin Rogers:
>
>> Wicketeers,
>>
>> This question is to do with lifecycle execution order - it's not a
>> bug as such, just a usage question - I hope you can help.
>>
>> I have component X with an AjaxFormComponentUpdatingBehavior, that
>> triggers updates in Components Y and Z by adding to target.
>>
>> Y has a generic Behaviour that updates it's data. Z needs to hide or
>> show itself depending on Y's data state.
>>
>> Y needs to use that generic Behaviour, as it's complex, does loads of
>> stuff and is used throughout the system - so I can't change this.
>>
>> Originally, in Z's onConfigure() we set the setVisible() depending on
>> Y's state. But that doesn't work as Z's onConfigure() executes after
>> Y's Behaviours onConfigure(). Which is just the way
>> Component.configure() works. Which is fair enough.
>>
>> So, I figured if Behaviours execute after onConfigure, I simply put
>> the
>> setVisible() code into a Behaviour on Z, and bingo!
>>
>> Only Y's Behaviour always executes first. Always. Even if I create it
>> second, even if I add Z to their parent container before Y. I can't
>> work out how to affect the order of Components/Behaviour execution.
>>
>> Note - I did extend the Y's Behaviour to update Z, but as Z has
>> already completed its cycle, the state didn't actually update.
>>
>> Can anyone help?
>>
>> Cheers,
>> Col.
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Wicket-Bootsrap

[Anup]

Hi.

I have downloaded wicket bootstrap from GitHub. I have built and imported
the projects in Eclipse following the instructions in  this post
  
. The projects import just fine. However when I run the samples project I
get a java.lang.ClassNotFoundException for class
de.agilecoders.wicket.core.settings.IBootstrapSettings  . I have cross
checked my project build path and it appears to be setup properly. Strange
part is CTRL + Clicking IBootstrapSettings in the configureBootsrap() method
of WicketApplication also opens up the class file. Any ideas why the class
is not being found at runtime?

Thanks and regards,

Anup

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