//Download page logic
private object DownloadPage(int pageSize, int offset)
{
IBackendlessQuery tempQuery = Query.NewInstance();
tempQuery.Offset = offset;
tempQuery.PageSize = pageSize;
if (typeof(T) == typeof(GeoPoint))
{
return(Backendless.Geo.GetPoints((BackendlessGeoQuery)tempQuery));
}
else
{
return(Backendless.Persistence.Find <T>((BackendlessDataQuery)tempQuery));
}
}
public static void CheckPageSizeAndOffset(IBackendlessQuery dataQuery)
{
if (dataQuery == null)
{
return;
}
if (dataQuery.Offset < 0)
{
throw new ArgumentException(ExceptionMessage.WRONG_OFFSET);
}
if (dataQuery.PageSize < 0)
{
throw new ArgumentException(ExceptionMessage.WRONG_PAGE_SIZE);
}
}
public void Setup()
{
_pushService = Substitute.For <IPushService>();
_pullService = Substitute.For <IPullService>();
_persistenceContextFactory = Substitute.For <IPersistenceContextFactory>();
_queryProvider = Substitute.For <IBackendlessQueryProvider>();
_query = Substitute.For <IBackendlessQuery>();
_queryProvider.Where().Returns(_query);
_pullService.Pull <Assessment>().ReturnsForAnyArgs(Task.FromResult(new UpdateResult <Assessment>()));
_pullService.Pull <AssessmentAttribute>().ReturnsForAnyArgs(Task.FromResult(new UpdateResult <AssessmentAttribute>()));
_user = new User {
Token = "blah", ObjectId = "xyz"
};
_query.OwnedBy(_user.ObjectId).IsActive().Returns(_query);
_syncService = new AttributedItemSyncService <Assessment, AssessmentAttribute>(_pushService, _pullService,
_queryProvider, _persistenceContextFactory);
}
private void DownloadPage(int pageSize, int offset, AsyncCallback <BackendlessCollection <T> > responder)
{
IBackendlessQuery tempQuery = Query.NewInstance();
tempQuery.Offset = offset;
tempQuery.PageSize = pageSize;
ThreadPool.QueueUserWorkItem(state =>
{
try
{
responder.ResponseHandler.Invoke((BackendlessCollection <T>)DownloadPage(pageSize, offset));
}
catch (BackendlessException e)
{
responder.ErrorHandler.Invoke(e.BackendlessFault);
}
catch (System.Exception e)
{
responder.ErrorHandler.Invoke(new BackendlessFault(e.Message));
}
});
}
