Hi Matthias,
for the reason that every component that has changing values needs to
be an editable value holder. Imagine the case of a tree embedded in a
data-table - a data-table, at least the ones of both MyFaces and the
RI (I know, Trinidad's data-table does something different) only save
whatever is part of the EditableValueHolder interface.
So the selection model of a tree won't be saved in a dataTable, except
it is part of the EditableValueHolder interface.
regards,
Martin
On 10/5/06, Matthias Wessendorf <[EMAIL PROTECTED]> wrote:
I think a tree is much more about "sturctured" data instead of "input data"
The UIXCollection is a base clazz for the "stamping", that you can say
"var" on those tags.
UIComponent
|
+ - UIXComponent
|
+ - UIXComponentBase
|
+ UIXCollection
Collection has some subclasses like
UIXHierarchy
|
+ UIXTree
and
UIXIterator
|
+ UIXTable
The Trinidad Tree uses a "TreeModel" which extends CollectionModel
(Trin) which extends DataModel (Faces). CollectionModel is also used
by the Trin Table.
But, I am not really sure, why the table should be EditableValueHolder ?
Thanks!
-Matthias
On 10/5/06, Martin Marinschek <[EMAIL PROTECTED]> wrote:
> Hi *,
>
> yes, I'd also like to do an Ajaxified version, but that's not the
> first thing I'm looking at.
>
> I believe that extending from UIData is not really what we should do -
> UIData is totally row-based, and a row-index doesn't make so much
> sense for a dynamic tree.
>
> What are the tree and the table of trinidad sharing with the
> UIXCollection interface?
>
> regards,
>
> Martin
>
> On 10/4/06, Matthias Wessendorf <[EMAIL PROTECTED]> wrote:
> > Hi M-
> >
> > On 10/4/06, Martin Marinschek <[EMAIL PROTECTED]> wrote:
> > > Hi *,
> > >
> > > I'm reviewing the tree2 currently, and I was wondering if we could
> > > have a discussion about some of the concepts.
> > >
> > > First thing I'd like to discuss is what happens with selected nodes.
> > > Currently, selecting a node fires an action-listener. This is somewhat
> > > ok, but I believe the selection-model of a tree should rather be a
> > > list of values, stored at a useful place. Therefore, the tree should
> > > implement the EditableValueHolder-interface, then we could do a lot
> > > more with the values of the tree as well.
> >
> > I am not really sure about the EditableValueHolder. In Trinidad the
> > Tree (UIXTree) is type of UIXCollection, which is also used by
> > UIXTable.
> >
> > I remember some discussions from Sean in the past that they Tree2
> > should extend UIData instead of UIComponent(Base)
> >
> >
> > > The change would necessitate to move the current "value" attribute to
> > > some other name - I suppose the name "model" would be more appropriate
> >
> > nothing wrong w/ using model instead of value, since value makes sense on
> > (editable)valueHolders to me...
> > (like UIOutput, UIInput, UISelect*,...)
> >
> > > anyways (I've never understood why a dataTable has a
> > > "value"-attribute, by the way, the semantics for the value-attribute
> > > are generally quite different).
> >
> > I guess they just simply introduced that since there was a "value" of
> > (edit.)value:_holders
> >
> >
> > >
> > > Additionally, the tree is doing a lot with respect to the markup of
> > > the component. I'm not sure if this is useful as very large HTML-bases
> > > result from this. I suspect it would be better to only transfer the
> > > data-model to the client (and maybe templates for each node-type), and
> > > then render the nodes on the client dynamically.
> >
> > you mean sending "xml" to the client and using a JS_engine to render
> > on the client side?
> >
> > -Matthias
> > >
> > > Thoughts?
> > >
> > > regards,
> > >
> > > Martin
> > >
> > > --
> > >
> > > http://www.irian.at
> > >
> > > Your JSF powerhouse -
> > > JSF Consulting, Development and
> > > Courses in English and German
> > >
> > > Professional Support for Apache MyFaces
> > >
> >
> >
> > --
> > Matthias Wessendorf
> > http://tinyurl.com/fmywh
> >
> > further stuff:
> > blog: http://jroller.com/page/mwessendorf
> > mail: mwessendorf-at-gmail-dot-com
> >
>
>
> --
>
> http://www.irian.at
>
> Your JSF powerhouse -
> JSF Consulting, Development and
> Courses in English and German
>
> Professional Support for Apache MyFaces
>
--
Matthias Wessendorf
http://tinyurl.com/fmywh
further stuff:
blog: http://jroller.com/page/mwessendorf
mail: mwessendorf-at-gmail-dot-com
--
http://www.irian.at
Your JSF powerhouse -
JSF Consulting, Development and
Courses in English and German
Professional Support for Apache MyFaces
