Struct RcBatchCursor 

pub struct RcBatchCursor<C> { /* private fields */ }

Wrapper to provide cursor to nested scope.

Trait Implementations

impl<C: Cursor> Cursor for RcBatchCursor<C>

type Storage = Rc<<C as Cursor>::Storage>

Storage required by the cursor.

fn key_valid(&self, storage: &Self::Storage) -> bool

Indicates if the current key is valid.

fn val_valid(&self, storage: &Self::Storage) -> bool

Indicates if the current value is valid.

fn key<'a>(&self, storage: &'a Self::Storage) -> Self::Key<'a>

A reference to the current key. Asserts if invalid.

fn val<'a>(&self, storage: &'a Self::Storage) -> Self::Val<'a>

A reference to the current value. Asserts if invalid.

fn get_key<'a>(&self, storage: &'a Self::Storage) -> Option<Self::Key<'a>>

Returns a reference to the current key, if valid.

fn get_val<'a>(&self, storage: &'a Self::Storage) -> Option<Self::Val<'a>>

Returns a reference to the current value, if valid.

fn map_times<L: FnMut(Self::TimeGat<'_>, Self::DiffGat<'_>)>( &mut self, storage: &Self::Storage, logic: L, )

Applies logic to each pair of time and difference. Intended for mutation of the closure’s scope.

fn step_key(&mut self, storage: &Self::Storage)

Advances the cursor to the next key.

fn seek_key(&mut self, storage: &Self::Storage, key: Self::Key<'_>)

Advances the cursor to the specified key.

fn step_val(&mut self, storage: &Self::Storage)

Advances the cursor to the next value.

fn seek_val(&mut self, storage: &Self::Storage, val: Self::Val<'_>)

Advances the cursor to the specified value.

fn rewind_keys(&mut self, storage: &Self::Storage)

Rewinds the cursor to the first key.

fn rewind_vals(&mut self, storage: &Self::Storage)

Rewinds the cursor to the first value for current key.

fn to_vec<K, IK, V, IV>( &mut self, storage: &Self::Storage, into_key: IK, into_val: IV, ) -> Vec<((K, V), Vec<(Self::Time, Self::Diff)>)>

where IK: for<'a> Fn(Self::Key<'a>) -> K, IV: for<'a> Fn(Self::Val<'a>) -> V,

Rewinds the cursor and outputs its contents to a Vec

impl<C: Cursor> WithLayout for RcBatchCursor<C>

type Layout = <C as WithLayout>::Layout

The layout.