Thanks for the explanation. That was EXTREMELY helpful. You are killing me with this "next release" stuff. The new changes/features sound great and address many of the issues I have encountered. I'll keep my eyes and ears open for the release date announcement.
Thanks! - Kevin --- In [email protected], "Jeff Vroom" <[EMAIL PROTECTED]> wrote: > > If you make a change to the collection property on the client side, we > queue an "update" message for the parent item of that collection. This > update will send down the entire collection, then push it to other > clients even if you only added or removed one item from the collection. > If your collection property is lazy="true" we only push around the ids > of the elements in the collection. > > > If you change a property of an item in a collection and that collection > is a managed association, we only send the update for the item in the > collection. The parent item is not affected. > > > > This does make collection properties somewhat inefficient when dealing > with large collections. We have an alternative way of doing updates to > collection properties coming out in the next release where we send > around incremental changes. > > > > The ArrayCollection.refresh method is (I think) just about updating the > client side sort and filters. It won't go back to the server. You'd > have to call getItem or fill again for the parent item to refresh the > child collection's membership. To refresh individual items in the > collection you can call getItem on them. > > > > Jeff > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of Kevin > Sent: Thursday, January 10, 2008 3:14 PM > To: [email protected] > Subject: [flexcoders] Re: Manual refresh nested collection in LCDS > managed object > > > > > Yes, that is in Java. If you are in ActionScript, usually you have the > > collection property on the client already and so just make a change to > > it using the collection apis. > > I am curious to how this works internally. If I make a change to a > collection (or an item in the collection) on the actionscript side, > when that change is made on the server does the whole collection get > refreshed OR just the single object that I made the change to. > > Also, I am assuming that when I call someArrayCollection.refresh() on > the client that this does NOT signal a refresh of data from the > server. I would have to do something more substantial to actually > signal a reload of the current data from the server (like change some > data)... correct? > > I guess I am trying to figure out the expected behavior when trying to > managed objects/collections on the client with autosync vs. manual sync. > > - Kevin > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> > , "Jeff Vroom" <jvroom@> wrote: > > > > Yes, that is in Java. If you are in ActionScript, usually you have the > > collection property on the client already and so just make a change to > > it using the collection apis. When you commit, it should apply those > > changes on the server. > > > > > > > > I started to answer your next question a few times and each time > > realized my answer would probably get me in trouble with corporate :-) > > > > > > > > Jeff > > > > ________________________________ > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> > [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> > ] On > > Behalf Of Kevin > > Sent: Thursday, January 10, 2008 1:04 PM > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > Subject: [flexcoders] Re: Manual refresh nested collection in LCDS > > managed object > > > > > > > > Sounds like this needs to be done in Java correct? Is there a way to > > do a refresh from actionscript? > > > > Also you have mentioned some new features (destination inheritance!) > > for the next version. Is there a target date for that yet OR info > > anywhere as to what the planned feature are? > > > > Thanks! - Kevin > > > > --- In [email protected] > <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > , "Jeff Vroom" <jvroom@> wrote: > > > > > > You can use the method DataServiceTransaction.updateItem(..) to > update > > > association properties as well. You need to create an instance of > the > > > parent object, fully populate the association property with the new > > > values, then specify the property name (or names) you changed in the > > > "changes" parameter. You can supply null for the previous item of > > > course unless you want to do conflict detection. > > > > > > > > > > > > We're adding better support for incremental updates of association > > > properties in general in the next version. > > > > > > > > > > > > Jeff > > > > > > > > > > > > ________________________________ > > > > > > From: [email protected] > <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > [mailto:[email protected] > <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > ] On > > > Behalf Of Kevin > > > Sent: Thursday, January 10, 2008 10:55 AM > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > > Subject: [flexcoders] Manual refresh nested collection in LCDS > managed > > > object > > > > > > > > > > > > I am wondering if there is a way to manually refresh a nested > > > collection from the server. If I have an object with nested > > > collections, I know how to refresh the collection holding the parent > > > object, but is there a way to refresh just the object OR just a > > > collection inside the object. > > > > > > All my collections have association destinations, but the nested > > > collections are filled automatically from the parent object and not > > > from an explicit call that we make so I am not sure how best to > > > refresh them manually if needed. > > > > > > I assume there is something basic here I am missing. > > > > > > Thanks, > > > > > > Kevin > > > > > >
