Trait arrow::datatypes::ArrowPrimitiveType[−][src]

pub trait ArrowPrimitiveType: 'static {
    type Native: ArrowNativeType;

    const DATA_TYPE: DataType;
    fn get_byte_width() -> usize { ... }
    fn default_value() -> Self::Native { ... }
}

Expand description

Trait bridging the dynamic-typed nature of Arrow (via DataType) with the static-typed nature of rust types (ArrowNativeType) for all types that implement ArrowNativeType.

Associated Types

`type Native: ArrowNativeType`[src]

Corresponding Rust native type for the primitive type.

Associated Constants

`const DATA_TYPE: DataType`[src]

the corresponding Arrow data type of this primitive type.

Provided methods

`fn get_byte_width() -> usize`[src]

Returns the byte width of this primitive type.

`fn default_value() -> Self::Native`[src]

Returns a default value of this primitive type.

This is useful for aggregate array ops like sum(), mean().

Implementors

`impl ArrowPrimitiveType for Date32Type`[src]

`type Native = i32`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Date64Type`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for DurationMicrosecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for DurationMillisecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for DurationNanosecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for DurationSecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Float32Type`[src]

`type Native = f32`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Float64Type`[src]

`type Native = f64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Int8Type`[src]

`type Native = i8`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Int16Type`[src]

`type Native = i16`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Int32Type`[src]

`type Native = i32`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Int64Type`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for IntervalDayTimeType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for IntervalYearMonthType`[src]

`type Native = i32`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Time32MillisecondType`[src]

`type Native = i32`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Time32SecondType`[src]

`type Native = i32`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Time64MicrosecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for Time64NanosecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for TimestampMicrosecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for TimestampMillisecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for TimestampNanosecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for TimestampSecondType`[src]

`type Native = i64`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for UInt8Type`[src]

`type Native = u8`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for UInt16Type`[src]

`type Native = u16`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for UInt32Type`[src]

`type Native = u32`

`const DATA_TYPE: DataType`[src]

`impl ArrowPrimitiveType for UInt64Type`[src]

`type Native = u64`

`const DATA_TYPE: DataType`[src]