[−][src]Struct arrow::array::ListBuilder
Array builder for ListArray
Methods
impl<T: ArrayBuilder> ListBuilder<T>[src]
pub fn new(values_builder: T) -> Self[src]
Creates a new ListArrayBuilder from a given values array builder
impl<T: ArrayBuilder> ListBuilder<T> where
T: 'static, [src]
T: 'static,
pub fn values(&mut self) -> &mut T[src]
Returns the child array builder as a mutable reference.
This mutable reference can be used to append values into the child array builder,
but you must call append to delimit each distinct list value.
pub fn append(&mut self, is_valid: bool) -> Result<()>[src]
Finish the current variable-length list array slot
pub fn finish(&mut self) -> ListArray[src]
Builds the ListArray and reset this builder.
Auto Trait Implementations
impl<T> Unpin for ListBuilder<T> where
T: Unpin,
T: Unpin,
impl<T> Sync for ListBuilder<T> where
T: Sync,
T: Sync,
impl<T> Send for ListBuilder<T> where
T: Send,
T: Send,
impl<T> UnwindSafe for ListBuilder<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> RefUnwindSafe for ListBuilder<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
Blanket Implementations
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
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>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
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>[src]
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> FromCast<T> for T[src]
impl<T, U> Cast<U> for T where
U: FromCast<T>, [src]
U: FromCast<T>,