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KnowledgeSnapshot

termivar_scanner::knowledge

Struct KnowledgeSnapshot 

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pub struct KnowledgeSnapshot { /* private fields */ }
Expand description

Consistent, immutable knowledge for one subject at one point in time.

Rule evaluation uses this snapshot so every expression in one decision cycle observes the same ontology, evidence, facts, and hypotheses.

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impl KnowledgeSnapshot

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pub fn subject(&self) -> &EntityId

Returns the subject captured by this snapshot.

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pub fn subject_revision(&self) -> u64

Returns the subject-local knowledge revision captured by this snapshot.

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pub fn ontology_revision(&self) -> u64

Returns the global ontology revision captured by this snapshot.

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pub fn evidence(&self) -> &[Evidence]

Returns evidence ordered by stable evidence ID.

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pub fn facts(&self) -> &[Fact]

Returns facts ordered by stable fact ID.

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pub fn hypotheses(&self) -> &[Hypothesis]

Returns hypotheses ordered by stable hypothesis ID.

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pub fn ontology(&self) -> &Ontology

Returns the ontology captured in the same read transaction.

Trait Implementations§

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impl Clone for KnowledgeSnapshot

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fn clone(&self) -> KnowledgeSnapshot

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for KnowledgeSnapshot

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

Formats the value using the given formatter. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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