Struct InMemoryMutationLog 

pub struct InMemoryMutationLog { /* private fields */ }

基于内存的 MutationLog 实现。

适用于测试和开发环境。

Implementations

impl InMemoryMutationLog

pub fn new() -> Self

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl Default for InMemoryMutationLog

fn default() -> InMemoryMutationLog

Returns the “default value” for a type.

impl MutationLogStore for InMemoryMutationLog

fn append<'life0, 'async_trait>( &'life0 self, entry: MutationLogEntry, ) -> Pin<Box<dyn Future<Output = Result<(), CheckpointStoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

追加一条 mutation 日志。

fn replay<'life0, 'life1, 'async_trait>( &'life0 self, trace_id: &'life1 TraceId, from_step: usize, ) -> Pin<Box<dyn Future<Output = Result<Vec<MutationLogEntry>, CheckpointStoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

重放 trace 从指定步骤开始的 mutation 日志。

fn truncate<'life0, 'life1, 'async_trait>( &'life0 self, trace_id: &'life1 TraceId, keep_from_step: usize, ) -> Pin<Box<dyn Future<Output = Result<usize, CheckpointStoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

截断 trace 的旧日志，保留从指定步骤开始的。

fn append_batch<'life0, 'async_trait>( &'life0 self, entries: Vec<MutationLogEntry>, ) -> Pin<Box<dyn Future<Output = Result<(), CheckpointStoreError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

批量追加 mutation 日志。