Struct PreparedWriteCursor 

pub struct PreparedWriteCursor<'a> { /* private fields */ }

Visits the writes of a prepared commit in order. A spilled commit is read one block at a time, and each value is loaded only when its write is returned.

Implementations

impl<'a> PreparedWriteCursor<'a>

pub fn next( &mut self, control: &StorageReadControl, ) -> VersionResult<Option<PreparedRecordWrite>>

The next write with its value, or None after the last.

pub fn next_where( &mut self, control: &StorageReadControl, select: impl FnMut(&PreparedWriteMetadata) -> VersionResult<bool>, ) -> VersionResult<Option<PreparedRecordWrite>>

The next selected write, testing metadata before loading its value. Skipped spilled values are neither read nor admitted to the caller’s allowance.

pub fn next_metadata( &mut self, control: &StorageReadControl, ) -> VersionResult<Option<PreparedWriteMetadata>>

What the next write changes, without loading its value, or None after the last.