One thing I am struggling with now is cells with values calculated
from the current row.
For the most part the value of a cell is just
currRowObject.some.value, but sometimes one need to go by some
service, eg. myService.getSomeValue(currRowObject).
I construct my own BeanModel "bm"
then I do
bm.add("category", new PropertyConduit() {
.
.
.
public Object get(Object instance) {
EntryDTO entry = (EntryDTO)instance;
return entryService.getCategory(entry);
}
.
.
.
}).label(messages.get("category")).order(10).editorType("categorycell").sortable(true);
It feels a little clumsy for all my non-primitives and also, how do I
override how the rendering is done?
If I use <t:parameter name="categoryCell">...</t:parameter> I cannot
get the value of the cell from here (well I could invoke
entryService.getCategory(...) once again...but)
I could override toString() on all my DTOs, but that would force me to
also inject the messages etc. into them and that would break my
layered design.
Any thoughts?
2007/2/15, Howard Lewis Ship <[EMAIL PROTECTED]>:
Fast is nice! Glad it worked.
Grid represents a number of simplifications over T4's contrib:Table.
We'll see over time if any of the simplficiations is overly drastic,
but I think it will do nicely. Not to insult OGNL, but removing all
that OGNL/reflection/synchronization overhead makes a big difference.
On my MacBook Pro, I see action requests lasting about 2ms and render
requests (for complex Grid pages) lasting 25 - 35 ms (seems like the
millisecond clock on Mac OS is more accurate than under Windows).
This still underlies the need for more performance testing of Tapestry
(4 + 5), something that typically requires a reasonable and stable
lab in order to be meaningful.
On 2/15/07, Ted Steen <[EMAIL PROTECTED]> wrote:
> Made my changes, updated svn.
> Now it works like a charm!
>
> And damn! that Grid component is fast!
>
> Thank you Howard!
>
>
> 2007/2/15, Howard Lewis Ship <[EMAIL PROTECTED]>:
> > To do this, you need to construct the BeanModel yourself, by injecting
> > the BeanModelSource service.
> >
> > You can then add a new column, say "trashcan".
> >
> > model.add("trashcan", null).order(1000).label("Delete ?");
> >
> > You can then provide a parameter:
> >
> > <t:comp type="Grid" ...>
> > <t:parameter name="trashcanCell">
> > ...
> > </t:parameter>
> > </t:comp>
> >
> > Alas, I forgot to add that version of model.add() where you can pass
> > in the PropertyConduit.
> >
> > So you'll have to wait for me to make a couple of changes ...
> >
> > On 2/15/07, Ted Steen <[EMAIL PROTECTED]> wrote:
> > > Hi!
> > >
> > > I'm trying out the new Grid component and I am having some troubles
> > > with the flexibility of the row's apperence.
> > > My model is very different from the view (eg. there should be a little
> > > trashcan accociated with some of the rows in order to be able to
> > > delete that row etc.)
> > > Are there any plans on letting us customise our own rows? maybe a
> > > parameter "row" that takes a block or similar?...
> > >
> > > /Ted
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > For additional commands, e-mail: [EMAIL PROTECTED]
> > >
> > >
> >
> >
> > --
> > Howard M. Lewis Ship
> > TWD Consulting, Inc.
> > Independent J2EE / Open-Source Java Consultant
> > Creator and PMC Chair, Apache Tapestry
> > Creator, Apache HiveMind
> >
> > Professional Tapestry training, mentoring, support
> > and project work. http://howardlewisship.com
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
>
>
> --
> /ted
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
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>
>
--
Howard M. Lewis Ship
TWD Consulting, Inc.
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Apache HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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/ted
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