private void DequeueDelayed(T obj, int delay)
{
_parallelOperations.ScheduleExecution(DelayedExecute, obj, delay, -1);
}
/// <summary>
/// Method called from the state machine to delay the dequeuing of the item
/// </summary>
void IDelayQueueContext.DequeueDelayed(object next, int queueDelay)
{
_parallelOperations.ScheduleExecution(DelayedExecute, next, queueDelay, -1);
}