private UnaryPipe <TKey, TPayload, TPayload> GetPipe(ExtendLifetimeStreamable <TKey, TPayload> stream, IStreamObserver <TKey, TPayload> observer)
{
var lookupKey = CacheKey.Create(this.duration);
var generatedPipeType = cachedPipes.GetOrAdd(lookupKey, key => ExtendLifetimeBaseTemplate.Generate(stream, this.duration));
Func <PlanNode, IQueryObject, PlanNode> planNode = (PlanNode p, IQueryObject o) => new ExtendLifetimePlanNode(p, o, typeof(TKey), typeof(TPayload), true, generatedPipeType.Item2, this.duration < 0);
var instance = Activator.CreateInstance(generatedPipeType.Item1, stream, observer, planNode, (this.duration < 0) ? -this.duration : this.duration);
var returnValue = (UnaryPipe <TKey, TPayload, TPayload>)instance;
return(returnValue);
}
protected override bool CanGenerateColumnar()
{
var typeOfTKey = typeof(TKey);
var typeOfTPayload = typeof(TPayload);
if (typeOfTKey.GetPartitionType() != null)
{
return(false);
}
if (!typeOfTPayload.CanRepresentAsColumnar())
{
return(false);
}
var lookupKey = CacheKey.Create(this.duration);
var generatedPipeType = cachedPipes.GetOrAdd(lookupKey, key => ExtendLifetimeBaseTemplate.Generate(this, this.duration));
this.errorMessages = generatedPipeType.Item2;
return(generatedPipeType.Item1 != null);
}