Struct QueryPattern 

pub struct QueryPattern {
    pub subject: Option<NodeId>,
    pub predicate: Option<NodeId>,
    pub object: Option<NodeId>,
}

Query pattern for logging

Fields

subject: Option<NodeId>

Subject (Some for bound, None for unbound)

predicate: Option<NodeId>

Predicate (Some for bound, None for unbound)

object: Option<NodeId>

Object (Some for bound, None for unbound)

Implementations

impl QueryPattern

pub fn new(s: Option<NodeId>, p: Option<NodeId>, o: Option<NodeId>) -> Self

Create new query pattern

pub fn signature(&self) -> String

Get pattern signature for grouping

pub fn bound_count(&self) -> usize

Count bound positions

Trait Implementations

impl Clone for QueryPattern

fn clone(&self) -> Self

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<'de> Deserialize<'de> for QueryPattern

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for QueryPattern

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.