Struct arrow::array::PrimitiveBuilder
source · [−]pub struct PrimitiveBuilder<T: ArrowPrimitiveType> { /* private fields */ }
Expand description
Array builder for fixed-width primitive types
Implementations
sourceimpl<T: ArrowPrimitiveType> PrimitiveBuilder<T>
impl<T: ArrowPrimitiveType> PrimitiveBuilder<T>
sourcepub fn capacity(&self) -> usize
pub fn capacity(&self) -> usize
Returns the capacity of this builder measured in slots of type T
sourcepub fn append_value(&mut self, v: T::Native) -> Result<()>
pub fn append_value(&mut self, v: T::Native) -> Result<()>
Appends a value of type T
into the builder
sourcepub fn append_null(&mut self) -> Result<()>
pub fn append_null(&mut self) -> Result<()>
Appends a null slot into the builder
pub fn append_nulls(&mut self, n: usize) -> Result<()>
sourcepub fn append_option(&mut self, v: Option<T::Native>) -> Result<()>
pub fn append_option(&mut self, v: Option<T::Native>) -> Result<()>
Appends an Option<T>
into the builder
sourcepub fn append_slice(&mut self, v: &[T::Native]) -> Result<()>
pub fn append_slice(&mut self, v: &[T::Native]) -> Result<()>
Appends a slice of type T
into the builder
sourcepub fn append_values(
&mut self,
values: &[T::Native],
is_valid: &[bool]
) -> Result<()>
pub fn append_values(
&mut self,
values: &[T::Native],
is_valid: &[bool]
) -> Result<()>
Appends values from a slice of type T
and a validity boolean slice
sourcepub unsafe fn append_trusted_len_iter(
&mut self,
iter: impl IntoIterator<Item = T::Native>
) -> Result<()>
pub unsafe fn append_trusted_len_iter(
&mut self,
iter: impl IntoIterator<Item = T::Native>
) -> Result<()>
Appends values from a trusted length iterator.
Safety
This requires the iterator be a trusted length. This could instead require
the iterator implement TrustedLen
once that is stabilized.
sourcepub fn finish(&mut self) -> PrimitiveArray<T>
pub fn finish(&mut self) -> PrimitiveArray<T>
Builds the PrimitiveArray
and reset this builder.
sourcepub fn finish_dict(&mut self, values: ArrayRef) -> DictionaryArray<T>
pub fn finish_dict(&mut self, values: ArrayRef) -> DictionaryArray<T>
Builds the DictionaryArray
and reset this builder.
Trait Implementations
sourceimpl<T: ArrowPrimitiveType> ArrayBuilder for PrimitiveBuilder<T>
impl<T: ArrowPrimitiveType> ArrayBuilder for PrimitiveBuilder<T>
sourcefn as_any_mut(&mut self) -> &mut dyn Any
fn as_any_mut(&mut self) -> &mut dyn Any
Returns the builder as a mutable Any
reference.
sourcefn into_box_any(self: Box<Self>) -> Box<dyn Any>
fn into_box_any(self: Box<Self>) -> Box<dyn Any>
Returns the boxed builder as a box of Any
.
Auto Trait Implementations
impl<T> RefUnwindSafe for PrimitiveBuilder<T> where
<T as ArrowPrimitiveType>::Native: RefUnwindSafe,
impl<T> Send for PrimitiveBuilder<T>
impl<T> Sync for PrimitiveBuilder<T>
impl<T> Unpin for PrimitiveBuilder<T> where
<T as ArrowPrimitiveType>::Native: Unpin,
impl<T> UnwindSafe for PrimitiveBuilder<T> where
<T as ArrowPrimitiveType>::Native: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more