/// <summary>
/// Get next identifier from sequence
/// </summary>
/// <returns></returns>
public long GetNextIdLong()
{ // buffer a queue of ids on the client to reduce trips to server
// http://social.msdn.microsoft.com/Forums/en/wcf/thread/0c71eedb-6c71-4b94-97c7-332195a7eb5c
// annotation op invoker on services side modified to add one to avoid 512 byte problem
if (SeqQueue.Count == 0) // get more ids from server if needed
{
if (SeqQueueRequestSize == 0)
{
SeqQueueRequestSize = 1;
}
else if (SeqQueueRequestSize < 1024)
{
SeqQueueRequestSize *= 2; // double size on each call until we get to 1k
}
if (ServiceFacade.UseRemoteServices)
{
Mobius.Services.Native.INativeSession nativeClient = ServiceFacade.CreateNativeSessionProxy();
Services.Native.NativeMethodTransportObject resultObject =
ServiceFacade.InvokeNativeMethod(nativeClient,
(int)Services.Native.ServiceCodes.MobiusAnnotationService,
(int)Services.Native.ServiceOpCodes.MobiusAnnotationService.GetNextIdsLong,
new Services.Native.NativeMethodTransportObject(new object[] { instanceId, SeqQueueRequestSize }));
((System.ServiceModel.IClientChannel)nativeClient).Close();
long[] ids = (long[])resultObject.Value;
SeqQueue = new Queue <long>(ids);
}
else
{
long[] ids = Instance.GetNextIdsLong(SeqQueueRequestSize);
SeqQueue = new Queue <long>(ids);
}
}
long nextVal = SeqQueue.Dequeue(); // may overflow
return(nextVal);
}
