Enum odbc_api::buffers::AnyColumnBuffer

source · [−]

pub enum AnyColumnBuffer {
Show 25 variants
    Binary(BinColumn),
    Text(CharColumn),
    WText(WCharColumn),
    Date(Vec<Date>),
    Time(Vec<Time>),
    Timestamp(Vec<Timestamp>),
    F64(Vec<f64>),
    F32(Vec<f32>),
    I8(Vec<i8>),
    I16(Vec<i16>),
    I32(Vec<i32>),
    I64(Vec<i64>),
    U8(Vec<u8>),
    Bit(Vec<Bit>),
    NullableDate(ColumnWithIndicator<Date>),
    NullableTime(ColumnWithIndicator<Time>),
    NullableTimestamp(ColumnWithIndicator<Timestamp>),
    NullableF64(ColumnWithIndicator<f64>),
    NullableF32(ColumnWithIndicator<f32>),
    NullableI8(ColumnWithIndicator<i8>),
    NullableI16(ColumnWithIndicator<i16>),
    NullableI32(ColumnWithIndicator<i32>),
    NullableI64(ColumnWithIndicator<i64>),
    NullableU8(ColumnWithIndicator<u8>),
    NullableBit(ColumnWithIndicator<Bit>),
}

Variants

`Binary(BinColumn)`

A buffer for holding both nullable and required binary data.

`Text(CharColumn)`

A buffer for holding both nullable and required text data. Uses the system encoding for character data.

`WText(WCharColumn)`

A buffer for holding both nullable and required text data. Uses UTF-16 encoding

`Date(Vec<Date>)`

`Time(Vec<Time>)`

`Timestamp(Vec<Timestamp>)`

`F64(Vec<f64>)`

`F32(Vec<f32>)`

`I8(Vec<i8>)`

`I16(Vec<i16>)`

`I32(Vec<i32>)`

`I64(Vec<i64>)`

`U8(Vec<u8>)`

`Bit(Vec<Bit>)`

`NullableDate(ColumnWithIndicator<Date>)`

`NullableTime(ColumnWithIndicator<Time>)`

`NullableTimestamp(ColumnWithIndicator<Timestamp>)`

`NullableF64(ColumnWithIndicator<f64>)`

`NullableF32(ColumnWithIndicator<f32>)`

`NullableI8(ColumnWithIndicator<i8>)`

`NullableI16(ColumnWithIndicator<i16>)`

`NullableI32(ColumnWithIndicator<i32>)`

`NullableI64(ColumnWithIndicator<i64>)`

`NullableU8(ColumnWithIndicator<u8>)`

`NullableBit(ColumnWithIndicator<Bit>)`

Implementations

source

impl AnyColumnBuffer

source

pub fn from_description(max_rows: usize, desc: BufferDescription) -> Self

Map buffer description to actual buffer.

Trait Implementations

source

impl CData for AnyColumnBuffer

source

fn cdata_type(&self) -> CDataType

The identifier of the C data type of the value buffer. When it is retrieving data from the data source with fetch, the driver converts the data to this type. When it sends data to the source, the driver converts the data from this type. Read more

source

fn indicator_ptr(&self) -> *const isize

Indicates the length of variable sized types. May be zero for fixed sized types. Used to determine the size or existence of input parameters. Read more

source

fn value_ptr(&self) -> *const c_void

Pointer to a value corresponding to the one described by cdata_type.

source

fn buffer_length(&self) -> isize

Maximum length of the type in bytes (not characters). It is required to index values in bound buffers, if more than one parameter is bound. Can be set to zero for types not bound as parameter arrays, i.e. CStr. Read more

source

impl CDataMut for AnyColumnBuffer

source

fn mut_indicator_ptr(&mut self) -> *mut isize

Indicates the length of variable sized types. May be zero for fixed sized types.

source

fn mut_value_ptr(&mut self) -> *mut c_void

Pointer to a value corresponding to the one described by cdata_type.

source

impl ColumnBuffer for AnyColumnBuffer

source

fn fill_default(&mut self, from: usize, to: usize)

Fills the column with the default representation of values, between from and to index.

source

fn capacity(&self) -> usize

Current capacity of the column

source

unsafe fn view(&self, valid_rows: usize) -> AnyColumnView<'_>

Safety Read more

source

unsafe fn view_mut(&mut self, num_rows: usize) -> AnyColumnViewMut<'_>

Safety Read more

source

impl<'a> ColumnProjections<'a> for AnyColumnBuffer

type View = AnyColumnView<'a>

Immutable view on the column data. Used in safe abstractions. User must not be able to access uninitialized or invalid memory of the buffer through this interface. Read more