Struct arrow::datatypes::Field

pub struct Field { /* fields omitted */ }

Contains the meta-data for a single relative type.

The Schema object is an ordered collection of Field objects.

Methods

impl Field

pub fn new(name: &str, data_type: DataType, nullable: bool) -> Self

Creates a new field

pub fn name(&self) -> &String

Returns an immutable reference to the Field's name

pub fn data_type(&self) -> &DataType

Returns an immutable reference to the Field's data-type

pub fn is_nullable(&self) -> bool

Indicates whether this Field supports null values

pub fn from(json: &Value) -> Result<Self>

Parse a Field definition from a JSON representation

pub fn to_json(&self) -> Value

Generate a JSON representation of the Field

pub fn to_string(&self) -> String

Converts to a String representation of the the Field

Trait Implementations

impl PartialEq<Field> for Field

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

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

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

This method tests for !=.

impl Clone for Field

fn clone(&self) -> Field

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for Field

impl Debug for Field

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

Formats the value using the given formatter.

impl Display for Field

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Field

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where     __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Field

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

Serialize this value into the given Serde serializer.