Struct StoragePartialDecoder 

pub struct StoragePartialDecoder { /* private fields */ }

A ReadableStorage store value partial decoder.

Implementations

impl StoragePartialDecoder

pub fn new( storage: Arc<dyn ReadableStorageTraits>, key: StoreKey, ) -> StoragePartialDecoder

Create a new storage partial decoder.

Trait Implementations

impl BytesPartialDecoderTraits for StoragePartialDecoder

fn exists(&self) -> Result<bool, StorageError>

Returns whether the chunk exists.

fn size_held(&self) -> usize

Returns the size of chunk bytes held by the partial decoder.

fn partial_decode_many( &self, decoded_regions: Box<dyn MaybeSendByteRangeIterator<Item = ByteRange> + '_>, _options: &CodecOptions, ) -> Result<Option<Vec<Cow<'_, [u8]>>>, CodecError>

Partially decode byte ranges.

fn supports_partial_decode(&self) -> bool

Returns whether this decoder supports partial decoding.

fn partial_decode( &self, decoded_region: ByteRange, options: &CodecOptions, ) -> Result<Option<Cow<'_, [u8]>>, CodecError>

Partially decode a byte range.

fn decode( &self, options: &CodecOptions, ) -> Result<Option<Cow<'_, [u8]>>, CodecError>

Decode all bytes.