vortex_layout::layouts::dict::writer

Struct DictStrategy

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pub struct DictStrategy {
    pub options: DictLayoutOptions,
    pub codes: ArcRef<dyn LayoutStrategy>,
    pub values: ArcRef<dyn LayoutStrategy>,
    pub fallback: ArcRef<dyn LayoutStrategy>,
}
Expand description

A layout strategy that encodes chunk into values and codes, if found appropriate by the btrblocks compressor. Current implementation only checks the first chunk to decide whether to apply dict layout and encodes chunks into dictionaries. When the dict constraints are hit, a new dictionary is created.

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§options: DictLayoutOptions§codes: ArcRef<dyn LayoutStrategy>§values: ArcRef<dyn LayoutStrategy>§fallback: ArcRef<dyn LayoutStrategy>

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impl Clone for DictStrategy

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fn clone(&self) -> DictStrategy

Returns a copy of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl LayoutStrategy for DictStrategy

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fn new_writer( &self, ctx: &ArrayContext, dtype: &DType, ) -> VortexResult<Box<dyn LayoutWriter>>

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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
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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> Pointee for T

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type Metadata = ()

The metadata type for pointers and references to this type.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for 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
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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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fn vzip(self) -> V

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impl<T> ExprSerializable for T

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impl<T> MaybeSendSync for T