Struct arrow2::scalar::PrimitiveScalar

pub struct PrimitiveScalar<T: NativeType> { /* private fields */ }

The implementation of Scalar for primitive, semantically equivalent to Option<T> with DataType.

Implementations

impl<T: NativeType> PrimitiveScalar<T>

pub fn new(data_type: DataType, value: Option<T>) -> Self

Returns a new PrimitiveScalar.

pub fn value(&self) -> &Option<T>

Returns the optional value.

pub fn to(self, data_type: DataType) -> Self

Returns a new PrimitiveScalar with the same value but different DataType

Panic

This function panics if the data_type is not valid for self’s physical type T.

Trait Implementations

impl<T: Clone + NativeType> Clone for PrimitiveScalar<T>

fn clone(&self) -> PrimitiveScalar<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + NativeType> Debug for PrimitiveScalar<T>

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

Formats the value using the given formatter.

impl<T: NativeType> From<Option<T>> for PrimitiveScalar<T>

fn from(v: Option<T>) -> Self

Converts to this type from the input type.

impl<T: PartialEq + NativeType> PartialEq for PrimitiveScalar<T>

fn eq(&self, other: &PrimitiveScalar<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: NativeType> Scalar for PrimitiveScalar<T>

fn as_any(&self) -> &dyn Any

convert itself to

fn is_valid(&self) -> bool

whether it is valid

fn data_type(&self) -> &DataType

the logical type.

impl<T: Eq + NativeType> Eq for PrimitiveScalar<T>

impl<T: NativeType> StructuralPartialEq for PrimitiveScalar<T>