Struct Bitmap 

pub struct Bitmap { /* private fields */ }

Null bitmap for nullable columns.

Implementations

impl Bitmap

pub fn all_valid(len: usize) -> Self

Create a new bitmap with all values valid.

pub fn from_bools(valid: &[bool]) -> Self

Create a new bitmap from a boolean slice.

pub fn new(len: usize) -> Self

Create a new bitmap with all values set to invalid (null).

pub fn new_zeroed(len: usize) -> Self

Create a new bitmap with all bits cleared.

pub fn is_valid(&self, index: usize) -> bool

Check if value at index is valid (not null).

pub fn get(&self, index: usize) -> bool

Alias for is_valid - get the validity at index.

pub fn set(&mut self, index: usize, valid: bool)

Set the validity at index.

pub fn null_count(&self) -> usize

Get the number of null values.

pub fn to_bytes(&self) -> Vec<u8>

Encode bitmap to bytes.

pub fn from_bytes(bytes: &[u8]) -> Result<Self>

Decode bitmap from bytes.

pub fn len(&self) -> usize

Get the length.

pub fn is_empty(&self) -> bool

Check if empty.

Trait Implementations

impl Clone for Bitmap

fn clone(&self) -> Bitmap

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Bitmap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Bitmap

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Bitmap

fn eq(&self, other: &Bitmap) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Bitmap

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Bitmap

impl StructuralPartialEq for Bitmap