Struct tc_btree::BTreeSlice

pub struct BTreeSlice<F, D, T> { /* private fields */ }

A slice of a BTree

Implementations

impl<F: File<Key = NodeId, Block = Node>, D: Dir, T: Transaction<D>> BTreeSlice<F, D, T>

pub fn new(
    source: BTree<F, D, T>,
    range: Range,
    reverse: bool
) -> TCResult<BTreeSlice<F, D, T>>

Trait Implementations

impl<F, D, T> BTreeInstance for BTreeSlice<F, D, T>where
    F: File<Key = NodeId, Block = Node>,
    D: Dir,
    T: Transaction<D>,

type Slice = BTreeSlice<F, D, T>

fn collator(&self) -> &ValueCollator

Borrow this BTree’s collator.

fn schema(&self) -> &RowSchema

Borrow to this BTree’s schema.

fn slice(self, range: Range, reverse: bool) -> TCResult<Self::Slice>

Return a slice of this BTree with the given range.

fn is_empty<'life0, 'async_trait>(
    &'life0 self,
    txn_id: TxnId
) -> Pin<Box<dyn Future<Output = TCResult<bool>> + Send + 'async_trait>>where
    Self: 'async_trait,
    'life0: 'async_trait,

Return true if this BTree has no Keys.

fn keys<'a, 'async_trait>(
    self,
    txn_id: TxnId
) -> Pin<Box<dyn Future<Output = TCResult<TCBoxTryStream<'a, Key>>> + Send + 'async_trait>>where
    Self: 'async_trait,
    'a: 'async_trait,

Return a Stream of this BTree’s Keys.

fn validate_key(&self, key: Key) -> TCResult<Key>

Return an error if the given key does not match this BTree’s schema

fn count<'life0, 'async_trait>(
    &'life0 self,
    txn_id: TxnId
) -> Pin<Box<dyn Future<Output = TCResult<u64>> + Send + 'async_trait>>where
    Self: Sync + 'async_trait,
    'life0: 'async_trait,

Return the number of Keys in this BTree.

impl<F: Clone, D: Clone, T: Clone> Clone for BTreeSlice<F, D, T>

fn clone(&self) -> BTreeSlice<F, D, T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<F, D, T> From<BTreeSlice<F, D, T>> for BTree<F, D, T>

fn from(btree: BTreeSlice<F, D, T>) -> Self

Converts to this type from the input type.

impl<F, D, T> Instance for BTreeSlice<F, D, T>where
    BTreeFile<F, D, T>: Send + Sync,

type Class = BTreeType

The Class type of this instance

fn class(&self) -> Self::Class

Returns the [Class] of this instance.