public Entity Materialize(int entityIndex, int typeIdIndex, TypeInfo type, Pair <int>[] entityColumns, Tuple tuple)
{
var result = entities[entityIndex];
if (result != null)
{
return(result);
}
TypeReferenceAccuracy accuracy;
int typeId = EntityDataReader.ExtractTypeId(type, typeIdRegistry, tuple, typeIdIndex, out accuracy);
if (typeId == TypeInfo.NoTypeId)
{
return(null);
}
bool canCache = accuracy == TypeReferenceAccuracy.ExactType;
var materializationInfo = MaterializationContext.GetTypeMapping(entityIndex, type, typeId, entityColumns);
Key key;
var keyIndexes = materializationInfo.KeyIndexes;
if (!KeyFactory.IsValidKeyTuple(tuple, keyIndexes))
{
return(null);
}
if (keyIndexes.Length <= WellKnown.MaxGenericKeyLength)
{
key = KeyFactory.Materialize(Session.Domain, Session.StorageNodeId, materializationInfo.Type, tuple, accuracy, canCache, keyIndexes);
}
else
{
var keyTuple = materializationInfo.KeyTransform.Apply(TupleTransformType.TransformedTuple, tuple);
key = KeyFactory.Materialize(Session.Domain, Session.StorageNodeId, materializationInfo.Type, keyTuple, accuracy, canCache, null);
}
if (accuracy == TypeReferenceAccuracy.ExactType)
{
var entityTuple = materializationInfo.Transform.Apply(TupleTransformType.Tuple, tuple);
var entityState = Session.Handler.UpdateState(key, entityTuple);
result = entityState.Entity;
}
else
{
result = Session.Query.SingleOrDefault(key);
}
entities[entityIndex] = result;
return(result);
}