Jan Blok wrote:
Hi,
yes, but Component is much more flexible than String.
Passing Component is fine, no problem what so ever...
i think you're hung up on trying to create some generalized
data binding solution.
Not really/intentional when I did review I noticed loads of Imodel
instance objects created/needed due to the fact of the design of Imodel,
which can be so easily prevented/optimized.
yup. good catch. i was worried at first mainly because i didn't
understand you, but i think in the end we have something good here.
jon
Regards Jan
Jan Blok wrote:
Hi,
Clear, to gain efficiency any of the proposed arguments passed to
IModel.set/getObject methods will work...
Jan
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf
Of Jonathan Locke
Sent: Friday, March 04, 2005 10:47 PM
To: [email protected]
Subject: Re: [Wicket-develop] Wicket IModel questions
yeah, but these aren't models in general. they're wicket component
models. in that sense, i think IModel is a whole lot more
flexible this
way.
i really dislike the idea of giving Component any more attributes,
especially this particular attribute. in addition, it's
important to me
that Component not directly hold the Object. i think this
indirection
is a worthwhile abstraction.
Jan Blok wrote:
Hi,
I not sure yet what to think about Jonathan's idea to passing a
Component, IModel whould be less clean, and gets a class dependency
(which is for sure less clean for my models having to import
Component),
but would work for me...
Is it an idea to use as said before what we in Servoy use? Give a
component set/getDataProviderID which is used in
Imodel.getObject(dataProvider)? keeping Imodel fairly
clean/simple but
have an excplicit identifier for modelobject lookup?
Jan
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf
Of Eelco Hillenius
Sent: Friday, March 04, 2005 10:03 PM
To: [email protected]
Subject: Re: [Wicket-develop] Wicket IModel questions
That's allright I guess.
Jonathan Locke wrote:
yeah, i'm on the fence too on the properties file
implementation in
the core. but if we used Component instead of String,
someone could
implement that as an extension. if we use String, we're
walled in
forever. if we do this at all, i'd be much more in favor of
getObject(Component) even if we just do Component.getName()
for now.
make sense?
jon
Eelco Hillenius wrote:
Makes sense, but I don't like it. Next thing to
introduce is some
fancy XML binding! I like Wicket because it keeps things
simple, and
you don't need to browse through tons of configuration
files to know
what you're doing.
I also like stuff like Jan sent us:
class Row implements IModel
{
private Map columndata;
public Object getObject(String id)
{
return columndata.get(id);
}
public void setObject(String id,Object obj)
{
columndata.put(id,obj)
}
So I am kind of +0.5 for changing IModel to the structure Jan
proposed; I especially like the efficiency gain, and the
fact that
property model (or whatever its name would be in future)
would look
more natural. But anything that introduces any more
'magic' will
actually make it fuzzier.
I'd like to know what Chris and Juergen think about
this as well.
Regards,
Eelco
Jonathan Locke wrote:
uh, oh yeah, i guess obviously this:
public String propertyExpression()
{
return
((PropertyMappings)mappings.get(getPage().getClass())).express
ionFor(this);
}
needs to do the null check. and not this:
public String expressionFor(Component component)
{
String expression =
properties.get(component.getClassRelativePath());
return expression != null ? expression :
component.getName();
}
;-)
so it would be:
public String propertyExpression()
{
OgnlBindings bindings =
bindings.get(getPage().getClass());
return bindings == null ? getName() :
bindings.expressionFor(this);
}
make sense? ;-)
Jonathan Locke wrote:
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