Implementing a ChangedIdEnumerator
Applies to: SharePoint Server 2010
A ChangedIdEnumerator method instance returns minimal information about the external items that are modified after a given time.
This method can be used to optimize the synchronization of cached data. This method ideally returns only the Identities and version information of the external items that were modified after the given time. The calling application can then request the changed external items to update the cached data.
This method can potentially return many external items. Rich filtering can be specified to filter the results and optimize the behavior. For more information about how to use filters, see IFilterCollection.
This method returns an IEntityInstanceEnumerator.