Struct differential_dataflow::trace::layers::ordered_leaf::OrderedLeafCursor
source · pub struct OrderedLeafCursor { /* private fields */ }
Expand description
A cursor for walking through an unordered sequence of values.
This cursor does not support seek
, though I’m not certain how to expose this.
Trait Implementations§
source§impl<K: Clone, R: Clone, C> Cursor<OrderedLeaf<K, R, C>> for OrderedLeafCursorwhere
C: BatchContainer<Item = (K, R)> + Deref<Target = [(K, R)]>,
impl<K: Clone, R: Clone, C> Cursor<OrderedLeaf<K, R, C>> for OrderedLeafCursorwhere C: BatchContainer<Item = (K, R)> + Deref<Target = [(K, R)]>,
source§fn key<'a>(&self, storage: &'a OrderedLeaf<K, R, C>) -> &'a Self::Key
fn key<'a>(&self, storage: &'a OrderedLeaf<K, R, C>) -> &'a Self::Key
Reveals the current key.
source§fn step(&mut self, storage: &OrderedLeaf<K, R, C>)
fn step(&mut self, storage: &OrderedLeaf<K, R, C>)
Advances the cursor by one element.
source§fn seek(&mut self, _storage: &OrderedLeaf<K, R, C>, _key: &Self::Key)
fn seek(&mut self, _storage: &OrderedLeaf<K, R, C>, _key: &Self::Key)
Advances the cursor until the location where
key
would be expected.source§fn valid(&self, _storage: &OrderedLeaf<K, R, C>) -> bool
fn valid(&self, _storage: &OrderedLeaf<K, R, C>) -> bool
Returns
true
if the cursor points at valid data. Returns false
if the cursor is exhausted.source§fn rewind(&mut self, _storage: &OrderedLeaf<K, R, C>)
fn rewind(&mut self, _storage: &OrderedLeaf<K, R, C>)
Rewinds the cursor to its initial state.
source§fn reposition(
&mut self,
_storage: &OrderedLeaf<K, R, C>,
lower: usize,
upper: usize
)
fn reposition( &mut self, _storage: &OrderedLeaf<K, R, C>, lower: usize, upper: usize )
Repositions the cursor to a different range of values.
Auto Trait Implementations§
impl RefUnwindSafe for OrderedLeafCursor
impl Send for OrderedLeafCursor
impl Sync for OrderedLeafCursor
impl Unpin for OrderedLeafCursor
impl UnwindSafe for OrderedLeafCursor
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more