Struct UnifiedTriplePattern 

pub struct UnifiedTriplePattern {
    pub subject: UnifiedTermPattern,
    pub predicate: UnifiedTermPattern,
    pub object: UnifiedTermPattern,
}

Unified pattern representation that can handle both algebra and model patterns

Fields

subject: UnifiedTermPattern

Subject pattern

predicate: UnifiedTermPattern

Predicate pattern

object: UnifiedTermPattern

Object pattern

Implementations

impl UnifiedTriplePattern

pub fn new( subject: UnifiedTermPattern, predicate: UnifiedTermPattern, object: UnifiedTermPattern, ) -> Self

Create a new unified triple pattern

pub fn to_algebra_pattern(&self) -> Result<AlgebraTriplePattern, OxirsError>

Convert to algebra TriplePattern

pub fn to_model_pattern(&self) -> TriplePattern

Convert to model TriplePattern

pub fn from_algebra_pattern(pattern: &AlgebraTriplePattern) -> Self

Create from algebra TriplePattern

pub fn from_model_pattern(pattern: &TriplePattern) -> Self

Create from model TriplePattern

pub fn extract_variables(&self) -> HashSet<Variable>

Extract all variables from this pattern

pub fn matches(&self, triple: &Triple) -> bool

Check if this pattern matches a concrete triple

pub fn selectivity_estimate(&self) -> f64

Get pattern selectivity estimate (0.0 = most selective, 1.0 = least selective)

Trait Implementations

impl Clone for UnifiedTriplePattern

fn clone(&self) -> UnifiedTriplePattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnifiedTriplePattern

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

Formats the value using the given formatter.

impl Hash for UnifiedTriplePattern

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 UnifiedTriplePattern

fn eq(&self, other: &UnifiedTriplePattern) -> 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 UnifiedTriplePattern

impl StructuralPartialEq for UnifiedTriplePattern