public QCandidate ReadSubCandidate(QueryingReadContext context, ITypeHandler4 handler ) { ObjectID objectID = ObjectID.NotPossible; try { int offset = context.Offset(); if (handler is IReadsObjectIds) { objectID = ((IReadsObjectIds)handler).ReadObjectID(context); } if (objectID.IsValid()) { return new QCandidate(this, null, objectID._id); } if (objectID == ObjectID.NotPossible) { context.Seek(offset); object obj = context.Read(handler); if (obj != null) { QCandidate candidate = new QCandidate(this, obj, context.Container().GetID(context .Transaction(), obj)); candidate.ClassMetadata(context.Container().ClassMetadataForObject(obj)); return candidate; } } } catch (Exception) { } // FIXME: Catchall return null; }