[−][src]Struct arrow::builder::ListArrayBuilder
Array builder for ListArray
Methods
impl<T: ArrayBuilder> ListArrayBuilder<T>[src]
impl<T: ArrayBuilder> ListArrayBuilder<T>pub fn new(values_builder: T) -> Self[src]
pub fn new(values_builder: T) -> SelfCreates a new ListArrayBuilder from a given values array builder
impl<T: ArrayBuilder> ListArrayBuilder<T>[src]
impl<T: ArrayBuilder> ListArrayBuilder<T>pub fn values(&mut self) -> &mut T[src]
pub fn values(&mut self) -> &mut TReturns the child array builder as a mutable reference.
This mutable reference can be used to push 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]
pub fn append(&mut self, is_valid: bool) -> Result<()>Finish the current variable-length list array slot
Trait Implementations
impl<T: ArrayBuilder> ArrayBuilder for ListArrayBuilder<T> where
T: 'static, [src]
impl<T: ArrayBuilder> ArrayBuilder for ListArrayBuilder<T> where
T: 'static, type ArrayType = ListArray
The type of array that this builder creates
fn into_any(self) -> Box<dyn Any>[src]
fn into_any(self) -> Box<dyn Any>Returns the builder as an owned Any type so that it can be downcast to a specific
implementation before calling it's finish method.
fn len(&self) -> usize[src]
fn len(&self) -> usizeReturns the number of array slots in the builder
fn finish(self) -> ListArray[src]
fn finish(self) -> ListArrayBuilds the ListArray
Auto Trait Implementations
impl<T> Send for ListArrayBuilder<T> where
T: Send,
impl<T> Send for ListArrayBuilder<T> where
T: Send, impl<T> Sync for ListArrayBuilder<T> where
T: Sync,
impl<T> Sync for ListArrayBuilder<T> where
T: Sync, Blanket Implementations
impl<T> From for T[src]
impl<T> From for Timpl<T, U> Into for T where
U: From<T>, [src]
impl<T, U> Into for T where
U: From<T>, impl<T, U> TryFrom for T where
T: From<U>, [src]
impl<T, U> TryFrom for T where
T: From<U>, type Error = !
🔬 This is a nightly-only experimental API. (
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>impl<T> Borrow for T where
T: ?Sized, [src]
impl<T> Borrow for T where
T: ?Sized, impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
fn get_type_id(&self) -> TypeIdimpl<T> BorrowMut for T where
T: ?Sized, [src]
impl<T> BorrowMut for T where
T: ?Sized, fn borrow_mut(&mut self) -> &mut T[src]
fn borrow_mut(&mut self) -> &mut Timpl<T, U> TryInto for T where
U: TryFrom<T>, [src]
impl<T, U> TryInto for T where
U: TryFrom<T>,