Enum CacheKey 

pub enum CacheKey {
    PredicateByName(String),
    PredicatesByArity(usize),
    PredicatesByDomain(String),
    PredicatesBySignature(Vec<String>),
    PredicatesByPattern(String),
    DomainUsageCount(String),
    AllDomainNames,
    AllPredicateNames,
    Custom(String),
}

A cache key for query results.

Variants

PredicateByName(String)

Query by predicate name

PredicatesByArity(usize)

Query by arity

PredicatesByDomain(String)

Query by domain

PredicatesBySignature(Vec<String>)

Query by signature

PredicatesByPattern(String)

Query by pattern (wildcard matching)

DomainUsageCount(String)

Domain usage count

AllDomainNames

All domain names

AllPredicateNames

All predicate names

Custom(String)

Custom query key

Trait Implementations

impl Clone for CacheKey

fn clone(&self) -> CacheKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheKey

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

Formats the value using the given formatter.

impl Hash for CacheKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CacheKey

fn eq(&self, other: &CacheKey) -> 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 Eq for CacheKey

impl StructuralPartialEq for CacheKey