Trait grafana_plugin_sdk::data::FieldType

pub trait FieldType {
    type Array;

    const ARROW_DATA_TYPE: DataType;

    // Provided method
    fn convert_arrow_array(
        array: Self::Array,
        _data_type: DataType
    ) -> Self::Array { ... }
}

Indicates that a type is can be stored in an Arrow array.

Required Associated Types

type Array

The type of arrow array this field type is stored in.

Required Associated Constants

const ARROW_DATA_TYPE: DataType

The logical arrow data type that an arrow array of this data should have.

Provided Methods

fn convert_arrow_array(array: Self::Array, _data_type: DataType) -> Self::Array

Convert the logical type of Self::Array, if needed.

The default implementation is a no-op, but some field types may need to implement this to ensure the underlying boxed Arrow array can be downcast correctly.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl FieldType for &str

type Array = Utf8Array<i32>

const ARROW_DATA_TYPE: DataType = DataType::Utf8

impl FieldType for bool

type Array = BooleanArray

const ARROW_DATA_TYPE: DataType = DataType::Boolean

fn convert_arrow_array(array: Self::Array, _data_type: DataType) -> Self::Array

impl FieldType for f32

type Array = PrimitiveArray<f32>

const ARROW_DATA_TYPE: DataType = DataType::Float32

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for f64

type Array = PrimitiveArray<f64>

const ARROW_DATA_TYPE: DataType = DataType::Float64

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for i8

type Array = PrimitiveArray<i8>

const ARROW_DATA_TYPE: DataType = DataType::Int8

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for i16

type Array = PrimitiveArray<i16>

const ARROW_DATA_TYPE: DataType = DataType::Int16

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for i32

type Array = PrimitiveArray<i32>

const ARROW_DATA_TYPE: DataType = DataType::Int32

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for i64

type Array = PrimitiveArray<i64>

const ARROW_DATA_TYPE: DataType = DataType::Int64

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for u8

type Array = PrimitiveArray<u8>

const ARROW_DATA_TYPE: DataType = DataType::UInt8

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for u16

type Array = PrimitiveArray<u16>

const ARROW_DATA_TYPE: DataType = DataType::UInt16

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for u32

type Array = PrimitiveArray<u32>

const ARROW_DATA_TYPE: DataType = DataType::UInt32

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for u64

type Array = PrimitiveArray<u64>

const ARROW_DATA_TYPE: DataType = DataType::UInt64

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

impl FieldType for String

type Array = Utf8Array<i32>

const ARROW_DATA_TYPE: DataType = DataType::Utf8

impl FieldType for SystemTime

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

Convert the logical type of Self::Array to DataType::Timestamp.

type Array = PrimitiveArray<i64>

const ARROW_DATA_TYPE: DataType = _

impl FieldType for NaiveDate

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

Convert the logical type of Self::Array to DataType::Timestamp.

type Array = PrimitiveArray<i64>

const ARROW_DATA_TYPE: DataType = _

impl FieldType for NaiveDateTime

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

Convert the logical type of Self::Array to DataType::Timestamp.

type Array = PrimitiveArray<i64>

const ARROW_DATA_TYPE: DataType = _

impl<T> FieldType for Date<T>

where T: Offset + TimeZone,

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

Convert the logical type of Self::Array to DataType::Timestamp.

type Array = PrimitiveArray<i64>

const ARROW_DATA_TYPE: DataType = _

impl<T> FieldType for DateTime<T>

where T: Offset + TimeZone,

fn convert_arrow_array(array: Self::Array, data_type: DataType) -> Self::Array

Convert the logical type of Self::Array to DataType::Timestamp.

type Array = PrimitiveArray<i64>

const ARROW_DATA_TYPE: DataType = _

Implementors