Struct arrow::array::BooleanArray

pub struct BooleanArray { /* fields omitted */ }

Array of bools

Implementations

impl BooleanArray

pub fn len(&self) -> usize

Returns the length of this array.

pub fn is_empty(&self) -> bool

Returns whether this array is empty.

pub fn builder(capacity: usize) -> BooleanBuilder

pub fn values(&self) -> &Buffer

Returns a Buffer holding all the values of this array.

Note this doesn't take the offset of this array into account.

pub fn value(&self, i: usize) -> bool

Returns the boolean value at index i.

Note this doesn't do any bound checking, for performance reason.

impl<'a> BooleanArray

pub fn iter(&'a self) -> BooleanIter<'a>

constructs a new iterator

Trait Implementations

impl Array for BooleanArray

fn as_any(&self) -> &dyn Any

Returns the array as Any so that it can be downcasted to a specific implementation.

fn data(&self) -> ArrayDataRef

Returns a reference-counted pointer to the underlying data of this array.

fn data_ref(&self) -> &ArrayDataRef

Returns a borrowed & reference-counted pointer to the underlying data of this array.

fn get_buffer_memory_size(&self) -> usize

Returns the total number of bytes of memory occupied by the buffers owned by this BooleanArray.

fn get_array_memory_size(&self) -> usize

Returns the total number of bytes of memory occupied physically by this BooleanArray.

fn data_type(&self) -> &DataType

Returns a reference to the DataType of this array.

fn slice(&self, offset: usize, length: usize) -> ArrayRef

Returns a zero-copy slice of this array with the indicated offset and length.

fn len(&self) -> usize

Returns the length (i.e., number of elements) of this array.

fn is_empty(&self) -> bool

Returns whether this array is empty.

fn offset(&self) -> usize

Returns the offset into the underlying data used by this array(-slice). Note that the underlying data can be shared by many arrays. This defaults to 0.

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

Returns whether the element at index is null. When using this function on a slice, the index is relative to the slice.

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

Returns whether the element at index is not null. When using this function on a slice, the index is relative to the slice.

fn null_count(&self) -> usize

Returns the total number of null values in this array.

fn to_raw(&self) -> Result<(*const FFI_ArrowArray, *const FFI_ArrowSchema)>

returns two pointers that represent this array in the C Data Interface (FFI)

impl Debug for BooleanArray

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

Formats the value using the given formatter.

impl From<Arc<ArrayData>> for BooleanArray

fn from(data: ArrayDataRef) -> Self

Performs the conversion.

impl From<Vec<Option<bool>, Global>> for BooleanArray

fn from(data: Vec<Option<bool>>) -> Self

Performs the conversion.

impl From<Vec<bool, Global>> for BooleanArray

fn from(data: Vec<bool>) -> Self

Performs the conversion.

impl<Ptr: Borrow<Option<bool>>> FromIterator<Ptr> for BooleanArray

fn from_iter<I: IntoIterator<Item = Ptr>>(iter: I) -> Self

Creates a value from an iterator.

impl<'a> IntoIterator for &'a BooleanArray

type Item = Option<bool>

The type of the elements being iterated over.

type IntoIter = BooleanIter<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl JsonEqual for BooleanArray

Implement array equals for numeric type

fn equals_json(&self, json: &[&Value]) -> bool

Checks whether arrow array equals to json array.

fn equals_json_values(&self, json: &[Value]) -> bool

Checks whether arrow array equals to json array.

impl PartialEq<BooleanArray> for BooleanArray

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.