Struct CqlDecimalBorrowed

pub struct CqlDecimalBorrowed<'b> { /* private fields */ }

Borrowed version of native CQL decimal representation.

Represented as a pair:

• a CqlVarintBorrowed value
• 32-bit integer which determines the position of the decimal point

Refer to the documentation of CqlDecimal. Especially, see the disclaimer about non-normalized values.

Implementations

impl<'b> CqlDecimalBorrowed<'b>

Constructors

pub fn from_signed_be_bytes_slice_and_exponent( bytes: &'b [u8], scale: i32, ) -> CqlDecimalBorrowed<'b>

Creates a CqlDecimalBorrowed from a slice of bytes representing CqlVarintBorrowed and a 32-bit scale.

See: disclaimer about non-normalized values.

impl CqlDecimalBorrowed<'_>

Conversion to raw bytes

pub fn as_signed_be_bytes_slice_and_exponent(&self) -> (&[u8], i32)

Returns a slice of bytes in two’s complement binary big-endian representation and a scale.

Trait Implementations

impl<'b> Clone for CqlDecimalBorrowed<'b>

fn clone(&self) -> CqlDecimalBorrowed<'b>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'b> Debug for CqlDecimalBorrowed<'b>

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

Formats the value using the given formatter.

impl<'b, 'frame, 'metadata> DeserializeValue<'frame, 'metadata> for CqlDecimalBorrowed<'b>

where 'frame: 'b,

fn type_check(typ: &ColumnType<'_>) -> Result<(), TypeCheckError>

Checks that the column type matches what this type expects.

fn deserialize( typ: &'metadata ColumnType<'metadata>, v: Option<FrameSlice<'frame>>, ) -> Result<CqlDecimalBorrowed<'b>, DeserializationError>

Deserialize a column value from given serialized representation.

impl<'b> PartialEq for CqlDecimalBorrowed<'b>

fn eq(&self, other: &CqlDecimalBorrowed<'b>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl SerializeValue for CqlDecimalBorrowed<'_>

fn serialize<'b>( &self, typ: &ColumnType<'_>, writer: CellWriter<'b>, ) -> Result<WrittenCellProof<'b>, SerializationError>

Serializes the value to given CQL type.

impl<'b> Emptiable for CqlDecimalBorrowed<'b>

impl<'b> Eq for CqlDecimalBorrowed<'b>

impl<'b> StructuralPartialEq for CqlDecimalBorrowed<'b>