Enum SetMode 

pub enum SetMode {
    Always,
    IfNotExists,
    IfExists,
}

How SET treats a key that already exists or is missing.

Variants

Always

Write the key either way.

IfNotExists

Write only when the key is absent (NX).

IfExists

Write only when the key exists (XX).

Trait Implementations

impl Clone for SetMode

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SetMode

impl Debug for SetMode

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

Formats the value using the given formatter.

impl Default for SetMode

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SetMode

impl PartialEq for SetMode

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SetMode