[−][src]Struct arrow::builder::BufferBuilder
Buffer builder with zero-copy build method
Trait Implementations
impl<T: ArrowPrimitiveType> BufferBuilderTrait<T> for BufferBuilder<T>
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impl<T: ArrowPrimitiveType> BufferBuilderTrait<T> for BufferBuilder<T>
fn new(capacity: usize) -> Self
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fn new(capacity: usize) -> Self
Creates a builder with a fixed initial capacity
fn len(&self) -> usize
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fn len(&self) -> usize
Returns the number of array elements (slots) in the builder
fn capacity(&self) -> usize
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fn capacity(&self) -> usize
Returns the current capacity of the builder (number of elements)
fn advance(&mut self, i: usize) -> Result<()>
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fn advance(&mut self, i: usize) -> Result<()>
fn reserve(&mut self, n: usize) -> Result<()>
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fn reserve(&mut self, n: usize) -> Result<()>
Reserves memory for n
elements of type T
.
fn push(&mut self, v: T::Native) -> Result<()>
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fn push(&mut self, v: T::Native) -> Result<()>
Pushes a value into the builder, growing the internal buffer as needed.
fn push_slice(&mut self, slice: &[T::Native]) -> Result<()>
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fn push_slice(&mut self, slice: &[T::Native]) -> Result<()>
Pushes a slice of type T
, growing the internal buffer as needed.
fn finish(self) -> Buffer
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fn finish(self) -> Buffer
Consumes this builder and returns an immutable Buffer
.
impl BufferBuilderTrait<BooleanType> for BufferBuilder<BooleanType>
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impl BufferBuilderTrait<BooleanType> for BufferBuilder<BooleanType>
fn new(capacity: usize) -> Self
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fn new(capacity: usize) -> Self
Creates a builder with a fixed initial capacity.
fn advance(&mut self, i: usize) -> Result<()>
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fn advance(&mut self, i: usize) -> Result<()>
fn push(&mut self, v: bool) -> Result<()>
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fn push(&mut self, v: bool) -> Result<()>
Pushes a value into the builder, growing the internal buffer as needed.
fn push_slice(&mut self, slice: &[bool]) -> Result<()>
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fn push_slice(&mut self, slice: &[bool]) -> Result<()>
Pushes a slice of type T
, growing the internal buffer as needed.
fn reserve(&mut self, n: usize) -> Result<()>
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fn reserve(&mut self, n: usize) -> Result<()>
Reserves memory for n
elements of type T
.
fn finish(self) -> Buffer
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fn finish(self) -> Buffer
Consumes this and returns an immutable Buffer
.
fn len(&self) -> usize
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fn len(&self) -> usize
fn capacity(&self) -> usize
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fn capacity(&self) -> usize
Auto Trait Implementations
impl<T> Send for BufferBuilder<T> where
T: Send,
impl<T> Send for BufferBuilder<T> where
T: Send,
impl<T> Sync for BufferBuilder<T> where
T: Sync,
impl<T> Sync for BufferBuilder<T> where
T: Sync,
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T> From for T
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impl<T> From for T
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,