Struct TxnsCodecDefault

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pub struct TxnsCodecDefault;

Expand description

A reasonable default implementation of TxnsCodec.

This uses the “native” Codecs for ShardId and Vec<u8>, with the latter empty for TxnsEntry::Register and non-empty for TxnsEntry::Append.

Trait Implementations§

impl Debug for TxnsCodecDefault

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

Formats the value using the given formatter. Read more

impl TxnsCodec for TxnsCodecDefault

type Key = ShardId

The K type used in the txns shard.

type Val = Vec<u8>

The V type used in the txns shard.

fn schemas() -> (<Self::Key as Codec>::Schema, <Self::Val as Codec>::Schema)

Returns the Schemas to use with Self::Key and Self::Val.

fn encode(e: TxnsEntry) -> (Self::Key, Self::Val)

Encodes a TxnsEntry in the format persisted in the txns shard.

fn decode(key: Self::Key, val: Self::Val) -> TxnsEntry

Decodes a TxnsEntry from the format persisted in the txns shard. Read more

fn should_fetch_part(data_id: &ShardId, stats: &PartStats) -> Option<bool>

Returns if a part might include the given data shard based on pushdown stats. Read more

Auto Trait Implementations§

impl Freeze for TxnsCodecDefault

impl RefUnwindSafe for TxnsCodecDefault

impl Send for TxnsCodecDefault

impl Sync for TxnsCodecDefault

impl Unpin for TxnsCodecDefault

impl UnwindSafe for TxnsCodecDefault

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more

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fn copy_as(self) -> T

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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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const ALIGN: usize = _

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type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

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Drops the object pointed to by the given pointer. Read more

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