Trait DatabaseReaderCursor
transact::database
pub trait DatabaseReaderCursor: Iterator { fn first(&mut self) -> Option<(Vec<u8>, Vec<u8>)>; fn last(&mut self) -> Option<(Vec<u8>, Vec<u8>)>; }
fn first(&mut self) -> Option<(Vec<u8>, Vec<u8>)>
fn last(&mut self) -> Option<(Vec<u8>, Vec<u8>)>
impl DatabaseReaderCursor for BTreeDatabaseCursor
impl<'a> DatabaseReaderCursor for LmdbDatabaseReaderCursor<'a>