Struct CursorRwImpl

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

Read/Write Cursor

Trait Implementations

impl<'tx: 'a, 'a> CursorApi for CursorRwImpl<'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.

impl<'tx: 'a, 'a> CursorRwApi for CursorRwImpl<'tx, 'a>

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

Removes the current key/value under the cursor from the bucket.