On Wed, 20 May 2015 10:11:34 -0300, Lance Java
wrote:
As you've discovered... Tapestry replaces field access with Binding.get()
using plastic byte code magic. You can use a local variable to avoid
multiple gets.
Or annotate the getter with @Cached. :)
Eg:
@BindParameter
private GridData
As you've discovered... Tapestry replaces field access with Binding.get()
using plastic byte code magic. You can use a local variable to avoid
multiple gets.
Eg:
@BindParameter
private GridDataSource source;
...
GridDataSource sourceCopy = source;
doStuff(sourceCopy);
doMoreStuff(sourceCopy);
2015-05-20 11:08 GMT+02:00 Lance Java :
> The initial render of the grid occurs on a different request to the
> "export" event. Tapestry does not maintain state between requests (unless
> you explicitly @Persist which i wouldn't recommend).
>
Of course, that is well understood. The grid is not (a
The initial render of the grid occurs on a different request to the
"export" event. Tapestry does not maintain state between requests (unless
you explicitly @Persist which i wouldn't recommend).
Therefore it's perfectly reasonable for the GridDataSource to be invoked
once for the initial html rend
Following your advice, i've replicated the class CachingDataSource (from
Grid class) inside my mixin, and created an instance of it using the
BindParameter GridDataSource.
@BindParameter
private GridDataSource source;
@OnEvent(value = EXPORT_EVENT)
public StreamResponse export() {
CachingDat
Thank you for your response.
But grid.getDataSource() returns null. I guess it's because I'm in a event
handler method (grid.getDataSource() is not null in the AfterRenderTemplate
method).
2015-05-15 10:49 GMT+02:00 Lance Java :
> I'm not entirely sure the problem but it's likely caused by @Bi
I'm not entirely sure the problem but it's likely caused by @BindParameter
which is likely invoking the binding each access.
Try
@InjectContainer Grid grid;
And grid.getDataSource().
This will give you an instance of CachingDataSource which should have the
lazy behaviour you want.
Hi,
I'm trying to write a export file mixin for the Grid component and I got a
strange behavior on the GridDataSource value.
My code is quite simple for now :
public class Exportable {
public static final String EXPORT_EVENT = "EXPORT";
@InjectContainer
private Grid grid;
@Bin
