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Date: Fri, 07 May 2010 09:23:29 +0200
From: Dirk =?iso-8859-1?b?TfZiaXVz?= <dmoebius@scoop-gmbh.de>
To: user@pivot.apache.org
Subject: Re: How to retrieve wtkx:id?
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On second thought, I admit Patrick has a point here. I'm not happy  
with my own code example because there's too much boilerplate code.  
The injected button members are not really needed.

Albeit, simply adding an "id" property to Component (analogous to  
Swing's "name" property) is not a good solution either, because the  
WTKXSerializer (soon to be named BeanSerializer) is more general and  
unaware of Component -- it would be awkward to insert something like:

   if (bean instanceof Component)
     ((Component)bean).setId(...);

Instead I propose a new class annotation:

@Id
public class Component {
   private String id;
   // getter and setter...
}

You can also set the name of the id property:

@Id("name")
public class MyBean {
   private String name;
   // getter and setter...
}

If WTKXSerializer sees the @Id annotation on a bean, it calls its  
setter, assuming its type is String. I think that would be general  
enough.

@Id could also be named @WtkxId or @BxId.

What do you think?
Pivot 2.0?!?

Regards,
Dirk


Patrick Shea <patrick@ps1.net> wrote:

> Unfortunately I don't come from an html background. I'm just trying  
> to reuse the same listener for more than one component but I can't  
> because I can't separate which is which!
>
> This is where the id comes into play...
>
> I don't think that any xml attribute should be hidden from the java  
> model, they should always be exposed.
>
> At the very least the namedObjects map should be exposed and not be  
> private in the serializer.
>
> Patrick
>
>
>
> -----Original Message-----
> From: "Greg Brown" <gkbrown@mac.com>
> Sent: Monday, May 3, 2010 6:24pm
> To: user@pivot.apache.org
> Subject: Re: How to retrieve wtkx:id?
>
> I understand why you might expect it to work that way, especially if  
> you are coming from HTML, but it doesn't. Consider that Java member  
> variables are also accessible via reflection, but you still can't  
> get a variable name from a class instance. WTKX isn't a DOM - it's  
> just another way of instantiating classes.
>
> Hope that helps clarify things.
>
> Greg
>
> On May 3, 2010, at 6:16 PM, Patrick Shea wrote:
>
>> Well, they are declared in xml as id's and used in code in get(...)  
>> so they are quite public.
>>
>> I was able to go around this by reflection but it's ugly and they  
>> should really be exposed at the component level I think.
>>
>> Patrick
>>
>> -----Original Message-----
>> From: "Greg Brown" <gkbrown@mac.com>
>> Sent: Monday, May 3, 2010 6:07pm
>> To: user@pivot.apache.org
>> Subject: Re: How to retrieve wtkx:id?
>>
>> No. WTKX IDs don't work like HTML IDs - they are more like variable  
>> names. Just as there is no way to retrieve a variable name from an  
>> object instantiated in Java, there is no way to retrieve an ID from  
>> an object declared in WTKX.
>>
>> On May 3, 2010, at 10:20 AM, Patrick Shea wrote:
>>
>>> Is there a way to get the wtkx:id of a given component?
>>>
>>> Thanks
>>> Patrick
>>>
>>
>>
>>
>
>
>
>


-- 
Dirk M�bius

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