Struct MergeIterator 

pub struct MergeIterator<I: StorageIterator> { /* private fields */ }

Merge multiple iterators of the same type. If the same key occurs multiple times in some iterators, prefer the one with smaller index.

Implementations

impl<I: StorageIterator> MergeIterator<I>

pub fn create(iters: Vec<Box<I>>) -> Self

Trait Implementations

impl<I: 'static + for<'a> StorageIterator<KeyType<'a> = KeySlice<'a>>> StorageIterator for MergeIterator<I>

type KeyType<'a> = Key<&'a [u8]>

fn key(&self) -> KeySlice<'_>

Get the current key.

fn value(&self) -> &[u8]

Get the current value.

fn is_valid(&self) -> bool

Check if the current iterator is valid.

fn next(&mut self) -> Result<()>

Move to the next position.

fn num_active_iterators(&self) -> usize

Number of underlying active iterators for this iterator.