Enum QueryPattern 

pub enum QueryPattern {
    SubjectQuery,
    PredicateQuery,
    ObjectQuery,
    SubjectPredicate,
    SubjectObject,
    PredicateObject,
    SpecificTriple,
    FullScan,
}

Query pattern types for tracking

Variants

SubjectQuery

Subject-based query (? ? ?)

PredicateQuery

Predicate-based query (? p ?)

ObjectQuery

Object-based query (? ? o)

SubjectPredicate

Subject-Predicate query (s p ?)

SubjectObject

Subject-Object query (s ? o)

PredicateObject

Predicate-Object query (? p o)

SpecificTriple

Specific triple query (s p o)

FullScan

Full scan query (? ? ?)

Implementations

impl QueryPattern

pub fn from_components( subject: Option<&Subject>, predicate: Option<&Predicate>, object: Option<&Object>, ) -> Self

Determine pattern from optional components

pub fn recommended_index(&self) -> Option<IndexType>

Get recommended index type for this pattern

Trait Implementations

impl Clone for QueryPattern

fn clone(&self) -> QueryPattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryPattern

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

Formats the value using the given formatter.

impl Hash for QueryPattern

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 QueryPattern

fn eq(&self, other: &QueryPattern) -> 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 Copy for QueryPattern

impl Eq for QueryPattern

impl StructuralPartialEq for QueryPattern