Trait arrow_array::types::ByteArrayType

pub trait ByteArrayType: 'static + Send + Sync + ByteArrayTypeSealed {
    type Offset: OffsetSizeTrait;
    type Native: ByteArrayNativeType + AsRef<Self::Native> + AsRef<[u8]> + ?Sized;

    const PREFIX: &'static str;
    const DATA_TYPE: DataType;

    // Required method
    fn validate(
        offsets: &OffsetBuffer<Self::Offset>,
        values: &Buffer
    ) -> Result<(), ArrowError>;
}

A trait over the variable-size byte array types

See Variable Size Binary Layout

Required Associated Types

type Offset: OffsetSizeTrait

Type of offset i.e i32/i64

type Native: ByteArrayNativeType + AsRef<Self::Native> + AsRef<[u8]> + ?Sized

Type for representing its equivalent rust type i.e Utf8Array will have native type has &str BinaryArray will have type as u8

Required Associated Constants

const PREFIX: &'static str

“Binary” or “String”, for use in error messages

const DATA_TYPE: DataType

Datatype of array elements

Required Methods

fn validate( offsets: &OffsetBuffer<Self::Offset>, values: &Buffer ) -> Result<(), ArrowError>

Verifies that every consecutive pair of offsets denotes a valid slice of values

Implementors

impl<O: OffsetSizeTrait> ByteArrayType for GenericBinaryType<O>

type Offset = O

type Native = [u8]

const PREFIX: &'static str = "Binary"

const DATA_TYPE: DataType = _

impl<O: OffsetSizeTrait> ByteArrayType for GenericStringType<O>

type Offset = O

type Native = str

const PREFIX: &'static str = "String"

const DATA_TYPE: DataType = _