public override void ProcessChangeBatch(ConflictResolutionPolicy resolutionPolicy, ChangeBatch sourceChanges,
object changeDataRetriever, SyncCallbacks syncCallback, SyncSessionStatistics sessionStatistics)
{
_metadataStore.BeginTransaction();
IEnumerable <ItemChange> localChanges = _metadataStore.Metadata.GetLocalVersions(sourceChanges);
NotifyingChangeApplier changeApplier = new NotifyingChangeApplier(_idFormats);
changeApplier.ApplyChanges(resolutionPolicy, sourceChanges, changeDataRetriever as IChangeDataRetriever, localChanges, _metadataStore.Metadata.GetKnowledge(),
_metadataStore.Metadata.GetForgottenKnowledge(), _changeApplier, _currentSessionContext, syncCallback);
_metadataStore.CommitTransaction();
}
