protected virtual async Task <bool?> ReadKeyExistenceAsync <TKey, TValue>(TKey elementKey, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (!initialized)
{
ThrowLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.PersistenceContext.GetCollectionEntry(this);
ICollectionPersister persister = entry.LoadedPersister;
if (persister.IsExtraLazy)
{
var queueOperationTracker = (AbstractMapQueueOperationTracker <TKey, TValue>)GetOrCreateQueueOperationTracker();
if (queueOperationTracker == null)
{
if (HasQueuedOperations)
{
await(session.FlushAsync(cancellationToken)).ConfigureAwait(false);
}
return(persister.IndexExists(entry.LoadedKey, elementKey, session));
}
if (queueOperationTracker.ContainsKey(elementKey))
{
return(true);
}
if (queueOperationTracker.Cleared)
{
return(false);
}
if (queueOperationTracker.IsElementKeyQueuedForDelete(elementKey))
{
return(false);
}
// As keys are unordered we don't have to calculate the current order of the key
return(persister.IndexExists(entry.LoadedKey, elementKey, session));
}
Read();
}
return(null);
}
protected virtual bool?ReadIndexExistence(object index)
{
if (!initialized)
{
ThrowLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.PersistenceContext.GetCollectionEntry(this);
ICollectionPersister persister = entry.LoadedPersister;
if (persister.IsExtraLazy)
{
if (HasQueuedOperations)
{
session.Flush();
}
return(persister.IndexExists(entry.LoadedKey, index, session));
}
}
Read();
return(null);
}
