Enum CachePolicy 

#[non_exhaustive]
pub enum CachePolicy {
    Bypass,
    ReadThrough,
    Refresh,
}

Whether / how a search should consult the cache.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Bypass

Do not read or write the cache.

ReadThrough

Return a fresh cached value when present; otherwise scan and store.

Refresh

Ignore any existing value, scan, and store the new result.

Trait Implementations

impl Clone for CachePolicy

fn clone(&self) -> CachePolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CachePolicy

impl Debug for CachePolicy

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

Formats the value using the given formatter.

impl Default for CachePolicy

fn default() -> CachePolicy

Returns the “default value” for a type.

impl Eq for CachePolicy

impl PartialEq for CachePolicy

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CachePolicy