Enum ChangesetValue 

pub enum ChangesetValue {
    Undefined,
    Null,
    Integer(i64),
    Real(f64),
    Text(String),
    Blob(Vec<u8>),
}

A single column value in the changeset binary format.

Undefined is used in UPDATE records for columns that did not change.

Variants

Undefined

Null

Integer(i64)

Real(f64)

Text(String)

Blob(Vec<u8>)

Implementations

impl ChangesetValue

pub fn from_sqlite(val: &SqliteValue) -> Self

Convert from a SqliteValue.

pub fn to_sqlite(&self) -> SqliteValue

Convert to a SqliteValue, mapping Undefined to Null.

pub fn encode(&self, out: &mut Vec<u8>)

Encode this value into the changeset binary format, appending to out.

pub fn decode(data: &[u8], pos: usize) -> Option<(Self, usize)>

Decode a single value from data starting at pos.

Returns (value, bytes_consumed) or None on malformed input.

Trait Implementations

impl Clone for ChangesetValue

fn clone(&self) -> ChangesetValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChangesetValue

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

Formats the value using the given formatter.

impl PartialEq for ChangesetValue

fn eq(&self, other: &ChangesetValue) -> 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 StructuralPartialEq for ChangesetValue