[−][src]Struct arrow::array::UnionBuilder
Builder type for creating a new UnionArray
.
Implementations
impl UnionBuilder
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pub fn new_dense(capacity: usize) -> Self
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Creates a new dense array builder.
pub fn new_sparse(capacity: usize) -> Self
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Creates a new sparse array builder.
pub fn append_null(&mut self) -> Result<()>
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Appends a null to this builder.
pub fn append<T: ArrowPrimitiveType>(
&mut self,
type_name: &str,
v: T::Native
) -> Result<()>
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&mut self,
type_name: &str,
v: T::Native
) -> Result<()>
Appends a value to this builder.
pub fn build(self) -> Result<UnionArray>
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Builds this builder creating a new UnionArray
.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for UnionBuilder
impl Send for UnionBuilder
impl Sync for UnionBuilder
impl Unpin for UnionBuilder
impl UnwindSafe for UnionBuilder
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
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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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,