internal static SqlMessagePump StartNew(Guid subscriptionId, DateTimeOffset from, SqlMessageQueueConfiguration configuration, IObserver <IMessageDescriptor> observer)
{
Contract.Requires(configuration != null);
Contract.Requires(observer != null);
Contract.Ensures(Contract.Result <SqlMessagePump>() != null);
var messagePump = new SqlMessagePump(subscriptionId, from, configuration, observer);
messagePump.Start();
return(messagePump);
}
/// <summary>
/// Subscribes to the message stream.
/// </summary>
/// <param name="observer">The <see cref="IObserver{T}"/> that receives messages from the stream.</param>
/// <param name="from">The <see cref="DateTimeOffset">date and time</see> in which to begin receiving messages from.</param>
/// <returns>A <see cref="IDisposable">disposable</see> object that can be used to the terminate the subscription.</returns>
public virtual IDisposable Subscribe(IObserver <IMessageDescriptor> observer, DateTimeOffset from) => SqlMessagePump.StartNew(SubscriptionId, from, Configuration, observer);