Struct CursorImpl

pub struct CursorImpl<'tx: 'a, 'a> { /* private fields */ }

Read-only Cursor

Trait Implementations

impl<'tx: 'a, 'a> CursorApi for CursorImpl<'tx, 'a>

fn first(&mut self) -> Option<(&[u8], Option<&[u8]>)>

Moves the cursor to the first item in the bucket and returns its key and value.

fn last(&mut self) -> Option<(&[u8], Option<&[u8]>)>

Moves the cursor to the last item in the bucket and returns its key and value.

fn next(&mut self) -> Option<(&[u8], Option<&[u8]>)>

Moves the cursor to the next item in the bucket and returns its key and value.

fn prev(&mut self) -> Option<(&[u8], Option<&[u8]>)>

Moves the cursor to the previous item in the bucket and returns its key and value. If the cursor is at the beginning of the bucket then None is returned.

fn seek<T: AsRef<[u8]>>(&mut self, seek: T) -> Option<(&[u8], Option<&[u8]>)>

Moves the cursor to a given key using a b-tree search and returns it.