I need an example of DataSource.updateCaches

[cliff.newton]

what's the point, no one will help anyway.

[d.cavestro]

Here you are the code I ended up with following Isomorphic's suggestion

//a criteria to fetch only one row
final Criteria criteria = new Criteria (MY_FIELD_NAME, Integer.toString (id));
//fetched the data
MyDataSource.getInstance ().fetchData (criteria, new DSCallback () {
	@Override
	public void execute (final DSResponse response, final Object rawData, final DSRequest request) {
		request.setOperationType (DSOperationType.UPDATE); // mimic an UPDATE operation
		//force (forge?) a cache update, to reflect the fresh data copy
		MyDataSource.getInstance ().updateCaches (response, request);

		//you can use the fetched data for other purposes, if needed...
		final Record[] data = response.getData ();
	}
});

It refreshes the local cache data only for the row requested using an appropriate criteria.
I hope SmartGWT 2.3 and SmartClient 8 will have a good documentation even for this feature (I think they are working on a huge documentation revamp).
Hope it helps.

Cheers
Davide

P.S.: If I was in you, I'd never say I'm weary of reading documentation while I am asking something to Isomorphic... this could simply lead to no replies;-)

[Arka79]

How to use UpdateCaches to refresh single record from the database (I know primary key value).

code bellow forces full listgrid refresh:
var dsResponse = isc.DSResponse; dsResponse.invalidateCache = true; mydatasource.updateCaches(dsResponse);

is it possible to refresh single record without user notifying listgrid refresh?

[JPPoulin]

I can verify this approach works... See thread http://forums.smartclient.com/showthread.php?p=65796#post65796

Jean-Pierre