NewBlobRef creates a new BlobRef as follows: - Set a new UUID to Key - Initialize Size and ObjectName as specified - Set Status to BlobRefStatusInitializing - Set current time to Timestamps (both created and updated at).

NewChunkedBlobRef creates a new BlobRef object with Size, Chunked, and ChunkCount set to 0, true, and chunkCount respectively.

StatusError means the blob was not uploaded due to client or server errors and the corresponding record needs to be updated (either by retrying blob upload or deleting the entry).

StatusInitializing means the blob is currently being prepared, i.e.

StatusPendingDeletion means the blob is no longer referenced by any Record entities and needs to be deleted.

StatusReady means the blob is committed and ready for use.

StatusUnknown represents internal error.

BlobRef is a metadata document to keep track of blobs stored in an external blob store.

BlobRefCursor is a database cursor for BlobRef.

Status represents a current blob status.