Enum Comparison 

pub enum Comparison {
    Equal(DbValue),
    GreaterThan(DbValue),
    GreaterThanOrEqual(DbValue),
    LessThan(DbValue),
    LessThanOrEqual(DbValue),
    NotEqual(DbValue),
    Contains(DbValue),
    StartsWith(DbValue),
    EndsWith(DbValue),
}

Comparison of database values ([DbValue]) used by key() condition. Supports the usual set of named comparisons: ==, !=, <, <=, >, => plus contains(). The comparisons are type strict except for the contains comparison which allows vectorized version of the base type. Notably however it does not support the bytes and integral types where the “contains” makes little sense (i.e. does 3 contain 1?).

Variants

Equal(DbValue)

property == this

GreaterThan(DbValue)

property > this

GreaterThanOrEqual(DbValue)

property >= this

LessThan(DbValue)

property < this

LessThanOrEqual(DbValue)

property <= this

NotEqual(DbValue)

property != this

Contains(DbValue)

property.contains(this)

StartsWith(DbValue)

property.starts_with(this)

EndsWith(DbValue)

property.ends_with(this)

Trait Implementations

impl Clone for Comparison

fn clone(&self) -> Comparison

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Comparison

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

Formats the value using the given formatter.

impl<T: Into<DbValue>> From<T> for Comparison

fn from(value: T) -> Self

Converts to this type from the input type.

impl PartialEq for Comparison

fn eq(&self, other: &Comparison) -> 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 Serialize for Comparison

fn serialized_size(&self) -> u64

fn serialize(&self) -> Vec<u8>

fn deserialize(buffer: &[u8]) -> Result<Self, DbError>

impl StructuralPartialEq for Comparison