Struct SetOptions 

pub struct SetOptions<'a> {
    pub exists: Exists,
    pub expire: Expire,
    pub compare: Option<Compare<'a>>,
    pub get: bool,
}

Everything SET can be asked to do beyond storing the value.

Fields

exists: Exists

NX or XX.

expire: Expire

EX, PX, EXAT, PXAT or KEEPTTL.

compare: Option<Compare<'a>>

IFEQ, IFNE, IFDEQ or IFDNE.

Redis 8.4’s compare and set. A missing key never compares equal, so IFEQ on a key that is not there does not store, and IFNE on one does.

get: bool

GET: hand back what was there, whether or not the write happened.

Implementations

impl<'a> SetOptions<'a>

pub const PLAIN: SetOptions<'static>

No options at all, which is plain SET.

pub const fn if_missing(self) -> SetOptions<'a>

This, but only if the key is missing.

pub const fn if_present(self) -> SetOptions<'a>

This, but only if the key is present.

pub const fn expiring(self, e: Expire) -> SetOptions<'a>

This, with a deadline.

pub const fn if_equal(self, bytes: &'a [u8]) -> SetOptions<'a>

This, but only if the current value is exactly bytes. IFEQ.

pub const fn if_not_equal(self, bytes: &'a [u8]) -> SetOptions<'a>

This, but only if the current value is not exactly bytes. IFNE.

pub const fn if_digest(self, d: u64) -> SetOptions<'a>

This, but only against a value whose digest is d. IFDEQ.

pub const fn if_not_digest(self, d: u64) -> SetOptions<'a>

This, but only against a value whose digest is not d. IFDNE.

pub const fn returning(self) -> SetOptions<'a>

This, returning the previous value.

Trait Implementations

impl<'a> Clone for SetOptions<'a>

fn clone(&self) -> SetOptions<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for SetOptions<'a>

impl<'a> Debug for SetOptions<'a>

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

Formats the value using the given formatter.

impl<'a> Default for SetOptions<'a>

fn default() -> SetOptions<'a>

Returns the “default value” for a type.