Struct BlobMetadataV53 

pub struct BlobMetadataV53 {
    pub merkle_leaves: MerkleLeaves,
    pub format: BlobFormatV53,
}

Fields

merkle_leaves: MerkleLeaves

format: BlobFormatV53

Implementations

impl BlobMetadataV53

pub async fn read_from<S: HandleOwner>( blob_object: &DataObjectHandle<S>, ) -> Result<Self, Error>

Reads the blob metadata from an attribute on blob_object. If the attribute doesn’t exist then it’s assumed to be BlobMetadata::empty().

pub async fn write_to<S: HandleOwner>( &self, blob_object: &DataObjectHandle<S>, ) -> Result<(), Error>

Writes the metadata to the BLOB_METADATA_ATTRIBUTE_ID attribute on blob_object. If the metadata is equal to BlobMetadata::empty() then the attribute isn’t written.

pub fn serialized_size(&self) -> Result<usize, Error>

Returns the size of the serialized metadata. If the metadata is equal to BlobMetadata::empty() then the metadata won’t get written, so 0 is returned.

pub fn into_merkle_verifier(self, root: Hash) -> Result<MerkleVerifier, Error>

Consumes the metadata and turns it into a MerkleVerifier.

pub fn empty() -> Self

Constructs a BlobMetadata that is considered to be empty. The empty metadata does not get written out as an attribute.

Trait Implementations

impl Debug for BlobMetadataV53

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BlobMetadataV53

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<BlobMetadataUnversioned> for BlobMetadataV53

fn from(old: BlobMetadataUnversioned) -> Self

Converts to this type from the input type.

impl PartialEq for BlobMetadataV53

fn eq(&self, other: &BlobMetadataV53) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for BlobMetadataV53

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TypeFingerprint for BlobMetadataV53

fn fingerprint() -> String

impl Versioned for BlobMetadataV53

fn max_serialized_size() -> Option<u64>

Maximum size of a serialized version of this type. Serialization and deserialization will fail if the limit is exceeded. If None, there is no limit. None is preferred over u64::MAX because serializing and deserializing with a limit has runtime overhead.

fn deserialize_from<R>(reader: &mut R, _version: Version) -> Result<Self>

where R: Read + ?Sized, for<'de> Self: Deserialize<'de>,

fn serialize_into<W>(&self, writer: &mut W) -> Result<()>

where W: Write, Self: Serialize,

impl VersionedLatest for BlobMetadataV53

fn deserialize_from_version<R>(reader: &mut R, version: Version) -> Result<Self>

where R: Read, Self: Sized,

Deserializes from a given version format and upgrades to the latest version.

fn deserialize_with_version<R>(reader: &mut R) -> Result<(Self, Version)>

where R: Read, Self: Sized,

Like deserialize_from_version but reads Version from reader first, then uses it to deserialize self.

fn serialize_with_version<W>(&self, writer: &mut W) -> Result<()>

where W: Write, Self: Sized,

Like serialize_into but serialized Version first, then self.

impl Eq for BlobMetadataV53

impl StructuralPartialEq for BlobMetadataV53