polars_core::chunked_array::object::builder

Struct ObjectChunkedBuilder

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pub struct ObjectChunkedBuilder<T> { /* private fields */ }
Available on crate feature object only.

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impl<T> ObjectChunkedBuilder<T>
where T: PolarsObject,

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pub fn new(name: PlSmallStr, capacity: usize) -> Self

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pub fn append_value(&mut self, v: T)

Appends a value of type T into the builder

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pub fn append_null(&mut self)

Appends a null slot into the builder

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pub fn append_value_from_any(&mut self, v: &dyn Any) -> PolarsResult<()>

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pub fn append_option(&mut self, opt: Option<T>)

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pub fn finish(self) -> ObjectChunked<T>

Trait Implementations§

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impl<T: PolarsObject> AnonymousObjectBuilder for ObjectChunkedBuilder<T>

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fn append_null(&mut self)

Append a null value.
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fn append_value(&mut self, value: &dyn Any)

Append a T of ObjectChunked<T> made generic via the Any trait.
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fn to_series(&mut self) -> Series

Take the current state and materialize as a Series the builder should not be used after that.
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fn get_list_builder( &self, name: PlSmallStr, values_capacity: usize, list_capacity: usize, ) -> Box<dyn ListBuilderTrait>

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fn append_option(&mut self, value: Option<&dyn Any>)

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impl<T> Default for ObjectChunkedBuilder<T>
where T: PolarsObject,

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<T> Freeze for ObjectChunkedBuilder<T>

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impl<T> !RefUnwindSafe for ObjectChunkedBuilder<T>

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impl<T> Send for ObjectChunkedBuilder<T>
where T: Send,

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impl<T> Sync for ObjectChunkedBuilder<T>
where T: Sync,

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impl<T> Unpin for ObjectChunkedBuilder<T>
where T: Unpin,

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impl<T> !UnwindSafe for ObjectChunkedBuilder<T>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V