Struct arrow2::scalar::ListScalar

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

The scalar equivalent of ListArray. Like ListArray, this struct holds a dynamically-typed Array. The only difference is that this has only one element.

Implementations

impl<O: Offset> ListScalar<O>

pub fn new(data_type: DataType, values: Option<Box<dyn Array>>) -> Self

returns a new ListScalar

Panics

iff

• the data_type is not List or LargeList (depending on this scalar’s offset O)
• the child of the data_type is not equal to the values

pub fn values(&self) -> &Box<dyn Array>

The values of the ListScalar

Trait Implementations

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

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

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

Formats the value using the given formatter.

impl<O: Offset> PartialEq<ListScalar<O>> for ListScalar<O>

fn eq(&self, other: &Self) -> 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 ListScalar<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.