Struct WriteBatchWithIndex

pub struct WriteBatchWithIndex { /* private fields */ }

Implementations

impl WriteBatchWithIndex

pub fn new(reserved_bytes: usize, overwrite_key: bool) -> Self

pub fn len(&self) -> usize

pub fn size_in_bytes(&self) -> usize

Return WriteBatch serialized size (in bytes).

pub fn data(&self) -> &[u8]

Return a reference to a byte array which represents a serialized version of the batch.

pub fn is_empty(&self) -> bool

pub fn get_from_batch<K>( &self, key: K, options: &Options, ) -> Result<Option<Vec<u8>>, Error>

where K: AsRef<[u8]>,

pub fn get_from_batch_cf<K>( &self, cf: &impl AsColumnFamilyRef, key: K, options: &Options, ) -> Result<Option<Vec<u8>>, Error>

where K: AsRef<[u8]>,

pub fn get_from_batch_and_db<T, I, K>( &self, db: &DBCommon<T, I>, key: K, readopts: &ReadOptions, ) -> Result<Option<Vec<u8>>, Error>

where T: ThreadMode, I: DBInner, K: AsRef<[u8]>,

pub fn get_pinned_from_batch_and_db<T, I, K>( &self, db: &DBCommon<T, I>, key: K, readopts: &ReadOptions, ) -> Result<Option<DBPinnableSlice<'_>>, Error>

where T: ThreadMode, I: DBInner, K: AsRef<[u8]>,

pub fn get_from_batch_and_db_cf<T, I, K>( &self, db: &DBCommon<T, I>, cf: &impl AsColumnFamilyRef, key: K, readopts: &ReadOptions, ) -> Result<Option<Vec<u8>>, Error>

where T: ThreadMode, I: DBInner, K: AsRef<[u8]>,

pub fn get_pinned_from_batch_and_db_cf<T, I, K>( &self, db: &DBCommon<T, I>, cf: &impl AsColumnFamilyRef, key: K, readopts: &ReadOptions, ) -> Result<Option<DBPinnableSlice<'_>>, Error>

where T: ThreadMode, I: DBInner, K: AsRef<[u8]>,

pub fn put<K, V>(&mut self, key: K, value: V)

where K: AsRef<[u8]>, V: AsRef<[u8]>,

Insert a value into the database under the given key.

pub fn put_cf<K, V>(&mut self, cf: &impl AsColumnFamilyRef, key: K, value: V)

where K: AsRef<[u8]>, V: AsRef<[u8]>,

pub fn merge<K, V>(&mut self, key: K, value: V)

where K: AsRef<[u8]>, V: AsRef<[u8]>,

pub fn merge_cf<K, V>(&mut self, cf: &impl AsColumnFamilyRef, key: K, value: V)

where K: AsRef<[u8]>, V: AsRef<[u8]>,

pub fn delete<K: AsRef<[u8]>>(&mut self, key: K)

Removes the database entry for key. Does nothing if the key was not found.

pub fn delete_cf<K: AsRef<[u8]>>(&mut self, cf: &impl AsColumnFamilyRef, key: K)

pub fn clear(&mut self)

Clear all updates buffered in this batch.

pub fn iterator_with_base<'a, D>( &self, base_iterator: DBRawIteratorWithThreadMode<'a, D>, ) -> DBRawIteratorWithThreadMode<'a, D>

where D: DBAccess,

pub fn iterator_with_base_cf<'a, D>( &self, base_iterator: DBRawIteratorWithThreadMode<'a, D>, cf: &impl AsColumnFamilyRef, ) -> DBRawIteratorWithThreadMode<'a, D>

where D: DBAccess,

Trait Implementations

impl Drop for WriteBatchWithIndex

fn drop(&mut self)

Executes the destructor for this type.

impl Send for WriteBatchWithIndex