Struct LevelDBIteratorWrapper

pub struct LevelDBIteratorWrapper { /* private fields */ }

| A internal wrapper class with an interface | similar to Iterator that caches the valid() and | key() results for an underlying iterator. | | This can help avoid virtual function calls and | also gives better cache locality.

Implementations

impl LevelDBIteratorWrapper

pub fn new(iter: *mut LevelDBIterator) -> Self

pub fn iter(&self) -> *mut LevelDBIterator

pub fn set(&mut self, iter: *mut LevelDBIterator)

| Takes ownership of “iter” and will delete | it when destroyed, or when Set() is invoked | again. |

pub fn valid(&self) -> bool

| Iterator interface methods |

pub fn key(&self) -> Slice

pub fn value(&self) -> Slice

pub fn status(&self) -> Status

Methods below require iter() != nullptr

pub fn next(&mut self)

pub fn prev(&mut self)

pub fn seek(&mut self, k: &Slice)

pub fn seek_to_first(&mut self)

pub fn seek_to_last(&mut self)

pub fn update(&mut self)

Trait Implementations

impl Default for LevelDBIteratorWrapper

fn default() -> Self

Returns the “default value” for a type.

impl Drop for LevelDBIteratorWrapper

fn drop(&mut self)

Executes the destructor for this type.