Enum odbc_api::buffers::AnyColumnView

pub enum AnyColumnView<'a> {
    Text(TextColumnView<'a, u8>),
    WText(TextColumnView<'a, u16>),
    Binary(BinColumnView<'a>),
    Date(&'a [Date]),
    Time(&'a [Time]),
    Timestamp(&'a [Timestamp]),
    F64(&'a [f64]),
    F32(&'a [f32]),
    I8(&'a [i8]),
    I16(&'a [i16]),
    I32(&'a [i32]),
    I64(&'a [i64]),
    U8(&'a [u8]),
    Bit(&'a [Bit]),
    NullableDate(NullableSlice<'a, Date>),
    NullableTime(NullableSlice<'a, Time>),
    NullableTimestamp(NullableSlice<'a, Timestamp>),
    NullableF64(NullableSlice<'a, f64>),
    NullableF32(NullableSlice<'a, f32>),
    NullableI8(NullableSlice<'a, i8>),
    NullableI16(NullableSlice<'a, i16>),
    NullableI32(NullableSlice<'a, i32>),
    NullableI64(NullableSlice<'a, i64>),
    NullableU8(NullableSlice<'a, u8>),
    NullableBit(NullableSlice<'a, Bit>),
}

A borrowed view on the valid rows in a column of a crate::buffers::ColumnarBuffer.

For columns of fixed size types, which are guaranteed to not contain null, a direct access to the slice is offered. Buffers over nullable columns can be accessed via an iterator over options.

Variants

Text(TextColumnView<'a, u8>)

Nullable character data in the system encoding.

WText(TextColumnView<'a, u16>)

Nullable character data encoded in UTF-16.

Binary(BinColumnView<'a>)

Date(&'a [Date])

Time(&'a [Time])

Timestamp(&'a [Timestamp])

F64(&'a [f64])

F32(&'a [f32])

I8(&'a [i8])

I16(&'a [i16])

I32(&'a [i32])

I64(&'a [i64])

U8(&'a [u8])

Bit(&'a [Bit])

NullableDate(NullableSlice<'a, Date>)

NullableTime(NullableSlice<'a, Time>)

NullableTimestamp(NullableSlice<'a, Timestamp>)

NullableF64(NullableSlice<'a, f64>)

NullableF32(NullableSlice<'a, f32>)

NullableI8(NullableSlice<'a, i8>)

NullableI16(NullableSlice<'a, i16>)

NullableI32(NullableSlice<'a, i32>)

NullableI64(NullableSlice<'a, i64>)

NullableU8(NullableSlice<'a, u8>)

NullableBit(NullableSlice<'a, Bit>)

Implementations

impl<'a> AnyColumnView<'a>

pub fn as_text_view(self) -> Option<TextColumnView<'a, u8>>

This method is useful if you expect the variant to be AnyColumnView::Text. It allows you to unwrap the inner column view without explictly matching it.

pub fn as_w_text_view(self) -> Option<TextColumnView<'a, u16>>

This method is useful if you expect the variant to be AnyColumnView::WText. It allows you to unwrap the inner column view without explictly matching it.

pub fn as_bin_view(self) -> Option<BinColumnView<'a>>

This method is useful if you expect the variant to be AnyColumnView::Binary. It allows you to unwrap the inner column view without explictly matching it.

pub fn as_slice<I: Item>(self) -> Option<&'a [I]>

Extract the array type from an AnyColumnView.

pub fn as_nullable_slice<I: Item>(self) -> Option<NullableSlice<'a, I>>

Extract the typed nullable buffer from an AnyColumnView.

Trait Implementations

impl<'a> Clone for AnyColumnView<'a>

fn clone(&self) -> AnyColumnView<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for AnyColumnView<'a>

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

Formats the value using the given formatter.

impl<'a> Copy for AnyColumnView<'a>