Class DataType<TType, TChildren>`Abstract`

An abstract base class for classes that encapsulate metadata about each of the logical types that Arrow can represent.

Type Parameters

TType extends Type = Type
TChildren extends TypeMap = any

Constructors

constructor

new DataType<TType extends Type = Type, TChildren extends TypeMap = any>(
typeId: TType,
): DataType<TType, TChildren>
Type Parameters
- TType extends Type = Type
- TChildren extends TypeMap = any
Parameters
- typeId: TType
Returns DataType<TType, TChildren>
- Defined in type.ts:84

Properties

[toStringTag]

"[toStringTag]": string

`Readonly`ArrayType

ArrayType: any

`Readonly`children

children: Field<TChildren[keyof TChildren]>[]

`Readonly`OffsetArrayType

OffsetArrayType: ArrayCtor<Int32Array | BigInt64Array>

`Readonly`TArray

TArray: any

TChildren

TChildren: TChildren

`Readonly`TOffsetArray

TOffsetArray: any

TType

TType: TType

`Readonly`TValue

TValue: any

`Readonly`typeId

typeId: TType

Methods

`Static`isBinary

isBinary(x: any): x is Binary
Parameters
- x: any
Returns x is Binary
Nocollapse
- Defined in type.ts:60

`Static`isBool

isBool(x: any): x is Bool
Parameters
- x: any
Returns x is Bool
Nocollapse
- Defined in type.ts:64

`Static`isDate

isDate(x: any): x is Date_
Parameters
- x: any
Returns x is Date_
Nocollapse
- Defined in type.ts:66

`Static`isDecimal

isDecimal(x: any): x is Decimal
Parameters
- x: any
Returns x is Decimal
Nocollapse
- Defined in type.ts:65

`Static`isDenseUnion

isDenseUnion(x: any): x is DenseUnion
Parameters
- x: any
Returns x is DenseUnion
Nocollapse
- Defined in type.ts:79

`Static`isDictionary

isDictionary(x: any): x is Dictionary
Parameters
- x: any
Returns x is Dictionary
Nocollapse
- Defined in type.ts:77

`Static`isDuration

isDuration(x: any): x is Duration
Parameters
- x: any
Returns x is Duration
Nocollapse
- Defined in type.ts:70

`Static`isFixedSizeBinary

isFixedSizeBinary(x: any): x is FixedSizeBinary
Parameters
- x: any
Returns x is FixedSizeBinary
Nocollapse
- Defined in type.ts:74

`Static`isFixedSizeList

isFixedSizeList(x: any): x is FixedSizeList
Parameters
- x: any
Returns x is FixedSizeList
Nocollapse
- Defined in type.ts:75

`Static`isFloat

isFloat(x: any): x is Float
Parameters
- x: any
Returns x is Float
Nocollapse
- Defined in type.ts:59

`Static`isInt

isInt(x: any): x is Int_
Parameters
- x: any
Returns x is Int_
Nocollapse
- Defined in type.ts:58

`Static`isInterval

isInterval(x: any): x is Interval_
Parameters
- x: any
Returns x is Interval_
Nocollapse
- Defined in type.ts:69

`Static`isLargeBinary

isLargeBinary(x: any): x is LargeBinary
Parameters
- x: any
Returns x is LargeBinary
Nocollapse
- Defined in type.ts:61

`Static`isLargeUtf8

isLargeUtf8(x: any): x is LargeUtf8
Parameters
- x: any
Returns x is LargeUtf8
Nocollapse
- Defined in type.ts:63

`Static`isList

isList(x: any): x is List
Parameters
- x: any
Returns x is List
Nocollapse
- Defined in type.ts:71

`Static`isMap

isMap(x: any): x is Map_
Parameters
- x: any
Returns x is Map_
Nocollapse
- Defined in type.ts:76

`Static`isNull

isNull(x: any): x is Null
Parameters
- x: any
Returns x is Null
Nocollapse
- Defined in type.ts:57

`Static`isSparseUnion

isSparseUnion(x: any): x is SparseUnion
Parameters
- x: any
Returns x is SparseUnion
Nocollapse
- Defined in type.ts:80

`Static`isStruct

isStruct(x: any): x is Struct
Parameters
- x: any
Returns x is Struct
Nocollapse
- Defined in type.ts:72

`Static`isTime

isTime(x: any): x is Time_
Parameters
- x: any
Returns x is Time_
Nocollapse
- Defined in type.ts:67

`Static`isTimestamp

isTimestamp(x: any): x is Timestamp_
Parameters
- x: any
Returns x is Timestamp_
Nocollapse
- Defined in type.ts:68

`Static`isUnion

isUnion(x: any): x is Union_
Parameters
- x: any
Returns x is Union_
Nocollapse
- Defined in type.ts:73

`Static`isUtf8

isUtf8(x: any): x is Utf8
Parameters
- x: any
Returns x is Utf8
Nocollapse
- Defined in type.ts:62