Struct arrow_array::builder::GenericByteViewBuilder

pub struct GenericByteViewBuilder<T: ByteViewType + ?Sized> { /* private fields */ }

A builder for GenericByteViewArray

See Self::append_value for the allocation strategy

Implementations

impl<T: ByteViewType + ?Sized> GenericByteViewBuilder<T>

pub fn new() -> Self

Creates a new GenericByteViewBuilder.

pub fn with_capacity(capacity: usize) -> Self

Creates a new GenericByteViewBuilder with space for capacity string values.

pub fn with_block_size(self, block_size: u32) -> Self

Override the size of buffers to allocate for holding string data

pub fn append_value(&mut self, value: impl AsRef<T::Native>)

Appends a value into the builder

Panics

Panics if

• String buffer count exceeds u32::MAX
• String length exceeds u32::MAX

pub fn append_option(&mut self, value: Option<impl AsRef<T::Native>>)

Append an Option value into the builder

pub fn append_null(&mut self)

Append a null value into the builder

pub fn finish(&mut self) -> GenericByteViewArray<T>

Builds the GenericByteViewArray and reset this builder

pub fn finish_cloned(&self) -> GenericByteViewArray<T>

Builds the GenericByteViewArray without resetting the builder

Trait Implementations

impl<T: ByteViewType + ?Sized> ArrayBuilder for GenericByteViewBuilder<T>

fn len(&self) -> usize

Returns the number of array slots in the builder

fn finish(&mut self) -> ArrayRef

Builds the array

fn finish_cloned(&self) -> ArrayRef

Builds the array without resetting the underlying builder.

fn as_any(&self) -> &dyn Any

Returns the builder as a non-mutable Any reference.

fn as_any_mut(&mut self) -> &mut dyn Any

Returns the builder as a mutable Any reference.

fn into_box_any(self: Box<Self>) -> Box<dyn Any>

Returns the boxed builder as a box of Any.

fn is_empty(&self) -> bool

Returns whether number of array slots is zero

impl<T: ByteViewType + ?Sized> Debug for GenericByteViewBuilder<T>

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

Formats the value using the given formatter.

impl<T: ByteViewType + ?Sized> Default for GenericByteViewBuilder<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: ByteViewType + ?Sized, V: AsRef<T::Native>> Extend<Option<V>> for GenericByteViewBuilder<T>

fn extend<I: IntoIterator<Item = Option<V>>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.