Struct ListType

pub struct ListType {
    item_type: Box<ConcreteDataType>,
}

Used to represent the List datatype.

Fields

item_type: Box<ConcreteDataType>

The type of List’s item.

Implementations

impl ListType

pub fn new(item_type: ConcreteDataType) -> Self

Create a new ListType whose item’s data type is item_type.

pub fn item_type(&self) -> &ConcreteDataType

Returns the item data type.

Trait Implementations

impl Clone for ListType

fn clone(&self) -> ListType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DataType for ListType

fn name(&self) -> String

Name of this data type.

fn logical_type_id(&self) -> LogicalTypeId

Returns id of the Logical data type.

fn default_value(&self) -> Value

Returns the default value of this type.

fn as_arrow_type(&self) -> ArrowDataType

Convert this type as [arrow::datatypes::DataType].

fn create_mutable_vector(&self, capacity: usize) -> Box<dyn MutableVector>

Creates a mutable vector with given capacity of this type.

fn try_cast(&self, from: Value) -> Option<Value>

Casts the value to specific DataType. Return None if cast failed.

impl Debug for ListType

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

Formats the value using the given formatter.

impl Default for ListType

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ListType

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<ListType> for ConcreteDataType

fn from(v: ListType) -> ConcreteDataType

Converts to this type from the input type.

impl Hash for ListType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ListType

fn cmp(&self, other: &ListType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ListType

fn eq(&self, other: &ListType) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for ListType

fn partial_cmp(&self, other: &ListType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ListType

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryInto<ListType> for ConcreteDataType

type Error = &'static str

The type returned in the event of a conversion error.

fn try_into(self) -> Result<ListType, <Self as TryInto<ListType>>::Error>

Performs the conversion.

impl Eq for ListType

impl StructuralPartialEq for ListType