When the "autoSyncEnabled" property of the DataService is true, the other client should be pushed the "deleteItem" message automatically if they have a managed copy of that item you are deleting. This does require that they both be using some type of channel which supports "push" (i.e. RTMP or polling).
When you remove an item from a collection, it is automatically removed from all fills which contained that collection and those changes are pushed to any clients that are currently managing those fills. If you turn on the "Message.*" debug logging target on the server, you can see each message sent by the client and it contains messages for each client that is being routed a given message. The "autoRefresh" setting is separate from autoSync (though requires that autoSyncEnabled be set to true). AutoRefresh controls how the membership of filled collections is updated after an updateItem or createItem operation. The default is to re-execute the query once for each transaction that contains an update or create. The old and new results are compared and any changes are pushed out to subscribed clients. If you initiate a change on the server, you can notify clients of these changes but you have to use the DataServiceTransaction api to do so. One of its methods is "refreshFill" which you can use to update a query. In 2.5.1 that would only detect when items have been added or removed from the collection. In 2.6, there is an option now to look for property changes made to items as well. Jeff From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Geoffrey Sent: Thursday, July 31, 2008 1:48 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] How do you auto-refresh LCDS? I'm not sure how you refresh clients when there's a change on the server. After I perform a _ds.fill(), the user can delete 1+ of the items from the managed collection. The ActionScript looks like: private function deleteItems():void { var selectedTasks:Array = taskList.getSelectedTasks(); for each (var task:ExploitationTaskVO in selectedTasks) { _ds.deleteItem(task); } // Commit the deletes to the server if needed if (__ds.commitRequired) { __ds.commit(); } } _ds.commit() has to be called to propagate changes to the server because I have _ds.autoCommit = false. The LCDS JavaDocs state that changes from a createItem() or updateItem() call will propigate to all clients if auto-refresh=true. Is that true for deleteItem() calls too? And where is this auto-refresh property? I don't see it under Java AbstractAssembler or ActionScript DataService classes. Also, what if I create, update, or delete a task on the server without doing it through the DataService(like through a java delegate). Can I force the DataService to refresh it's clients on the java side? Is this what the DataServiceTransaction.refreshFill() method is for? Thanks, Geoff
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