Struct arrow2::scalar::Utf8Scalar

pub struct Utf8Scalar<O: Offset> { /* private fields */ }

The implementation of Scalar for utf8, semantically equivalent to Option<String>.

Implementations

impl<O: Offset> Utf8Scalar<O>

pub fn new<P: Into<String>>(value: Option<P>) -> Self

Returns a new Utf8Scalar

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

Returns the value irrespectively of the validity.

Trait Implementations

impl<O: Clone + Offset> Clone for Utf8Scalar<O>

fn clone(&self) -> Utf8Scalar<O>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<O: Debug + Offset> Debug for Utf8Scalar<O>

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

Formats the value using the given formatter.

impl<O: Offset, P: Into<String>> From<Option<P>> for Utf8Scalar<O>

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

Converts to this type from the input type.

impl<O: PartialEq + Offset> PartialEq<Utf8Scalar<O>> for Utf8Scalar<O>

fn eq(&self, other: &Utf8Scalar<O>) -> 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<O: Offset> Scalar for Utf8Scalar<O>

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<O: Eq + Offset> Eq for Utf8Scalar<O>

impl<O: Offset> StructuralEq for Utf8Scalar<O>

impl<O: Offset> StructuralPartialEq for Utf8Scalar<O>