NullVTable

vortex_array::arrays

Struct NullVTable 

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pub struct NullVTable;

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impl ArrayVTable<NullVTable> for NullVTable

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fn len(array: &NullArray) -> usize

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fn dtype(_array: &NullArray) -> &DType

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fn stats(array: &NullArray) -> StatsSetRef<'_>

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impl CanonicalVTable<NullVTable> for NullVTable

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fn canonicalize(array: &NullArray) -> VortexResult<Canonical>

Returns the canonical representation of the array. Read more
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fn append_to_builder( array: &V::Array, builder: &mut dyn ArrayBuilder, ) -> VortexResult<()>

Writes the array into a canonical builder. Read more
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impl CastKernel for NullVTable

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fn cast( &self, array: &NullArray, dtype: &DType, ) -> VortexResult<Option<ArrayRef>>

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impl Debug for NullVTable

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl FilterKernel for NullVTable

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fn filter(&self, _array: &Self::Array, mask: &Mask) -> VortexResult<ArrayRef>

Filter an array by the provided predicate. Read more
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impl MaskKernel for NullVTable

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fn mask(&self, array: &NullArray, _mask: &Mask) -> VortexResult<ArrayRef>

Replace masked values with null in array.
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impl MinMaxKernel for NullVTable

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fn min_max(&self, _array: &NullArray) -> VortexResult<Option<MinMaxResult>>

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impl OperationsVTable<NullVTable> for NullVTable

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fn slice(_array: &NullArray, start: usize, stop: usize) -> ArrayRef

Perform a constant-time slice of the array. Read more
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fn scalar_at(_array: &NullArray, _index: usize) -> Scalar

Fetch the scalar at the given index. Read more
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impl SerdeVTable<NullVTable> for NullVTable

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type Metadata = EmptyMetadata

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fn metadata(_array: &NullArray) -> VortexResult<Option<Self::Metadata>>

Exports metadata for an array. Read more
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fn build( _encoding: &NullEncoding, _dtype: &DType, len: usize, _metadata: &Self::Metadata, _buffers: &[ByteBuffer], _children: &dyn ArrayChildren, ) -> VortexResult<NullArray>

Build an array from components. Read more
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impl TakeKernel for NullVTable

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fn take(&self, array: &NullArray, indices: &dyn Array) -> VortexResult<ArrayRef>

Create a new array by taking the values from the array at the given indices. Read more
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impl VTable for NullVTable

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type Array = NullArray

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type Encoding = NullEncoding

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type ArrayVTable = NullVTable

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type CanonicalVTable = NullVTable

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type OperationsVTable = NullVTable

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type ValidityVTable = NullVTable

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type VisitorVTable = NullVTable

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type ComputeVTable = NotSupported

Optionally enable implementing dynamic compute dispatch for this encoding. Can be disabled by assigning to the NotSupported type.
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type EncodeVTable = NotSupported

Optionally enable the EncodeVTable for this encoding. This allows it to partake in compression. Can be disabled by assigning to the NotSupported type.
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type PipelineVTable = NotSupported

Optionally enable the PipelineVTable for this encoding. This allows it to partake in pipeline operations.
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type SerdeVTable = NullVTable

Optionally enable serde for this encoding by implementing the SerdeVTable trait. Can be disabled by assigning to the NotSupported type.
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fn id(_encoding: &Self::Encoding) -> EncodingId

Returns the ID of the encoding.
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fn encoding(_array: &Self::Array) -> EncodingRef

Returns the encoding for the array.
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impl ValidityVTable<NullVTable> for NullVTable

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fn is_valid(_array: &NullArray, _index: usize) -> VortexResult<bool>

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fn all_valid(array: &NullArray) -> VortexResult<bool>

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fn all_invalid(array: &NullArray) -> VortexResult<bool>

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fn validity_mask(array: &NullArray) -> VortexResult<Mask>

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fn valid_count(array: &V::Array) -> VortexResult<usize>

Returns the number of valid elements in the array. Read more
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fn invalid_count(array: &V::Array) -> VortexResult<usize>

Returns the number of invalid elements in the array. Read more
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impl VisitorVTable<NullVTable> for NullVTable

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fn visit_buffers(_array: &NullArray, _visitor: &mut dyn ArrayBufferVisitor)

Visit the buffers of the array.
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fn visit_children(_array: &NullArray, _visitor: &mut dyn ArrayChildVisitor)

Visit the children of the array.
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fn nbuffers(array: &V::Array) -> usize

Count the number of buffers in the array.
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fn nchildren(array: &V::Array) -> usize

Count the number of children in the array.

Auto Trait Implementations§

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impl<T> Any for T
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Gets the TypeId of self. Read more
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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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fn from(t: T) -> T

Returns the argument unchanged.

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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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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 pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
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Pipes by value. This is generally the method you want to use. Read more
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where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
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where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
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where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
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where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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fn tap(self, func: impl FnOnce(&Self)) -> Self

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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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Calls .tap_mut() only in debug builds, and is erased in release builds.
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where Self: Borrow<B>, B: ?Sized,

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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
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Calls .tap_ref() only in debug builds, and is erased in release builds.
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where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
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Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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