Crate lora_store 

Storage layer: graph value types, the trait surface every backend implements, and the in-memory reference backend.

Public surface is laid out here so the full export of the crate is readable in one place.

Re-exports

pub use types::bbox_contains;

pub use types::bbox_x_ranges;

pub use types::cartesian_distance;

pub use types::cosine_similarity_bounded;

pub use types::cosine_similarity_raw;

pub use types::days_in_month;

pub use types::dot_product;

pub use types::euclidean_distance;

pub use types::euclidean_distance_squared;

pub use types::euclidean_norm;

pub use types::euclidean_similarity;

pub use types::hamming_distance;

pub use types::haversine_distance;

pub use types::is_leap_year;

pub use types::manhattan_distance;

pub use types::manhattan_norm;

pub use types::parse_string_values;

pub use types::point_distance;

pub use types::resolve_srid;

pub use types::resolve_srid_checked;

pub use types::srid_from_crs_name;

pub use types::srid_is_3d;

pub use types::srid_is_geographic;

pub use types::srid_is_supported;

pub use types::ExpandedRelationship;

pub use types::Labels;

pub use types::LocalOffset;

pub use types::LoraBinary;

pub use types::LoraDate;

pub use types::LoraDateTime;

pub use types::LoraDuration;

pub use types::LoraLocalDateTime;

pub use types::LoraLocalTime;

pub use types::LoraPoint;

pub use types::LoraTime;

pub use types::LoraVector;

pub use types::Name;

pub use types::NamedPointCoordinates;

pub use types::NodeId;

pub use types::NodeRecord;

pub use types::ParseVectorCoordinateTypeError;

pub use types::PointKeyFamily;

pub use types::Properties;

pub use types::PropertyMap;

pub use types::PropertyValue;

pub use types::RawCoordinate;

pub use types::RelationshipId;

pub use types::RelationshipRecord;

pub use types::SridResolveError;

pub use types::VectorBuildError;

pub use types::VectorCoordinateType;

pub use types::VectorValues;

pub use types::ZoneId;

pub use types::CRS_CARTESIAN;

pub use types::CRS_CARTESIAN_3D;

pub use types::CRS_WGS84_2D;

pub use types::CRS_WGS84_3D;

pub use types::MAX_VECTOR_DIMENSION;

pub use types::SRID_CARTESIAN;

pub use types::SRID_CARTESIAN_3D;

pub use types::SRID_WGS84;

pub use types::SRID_WGS84_3D;

pub use types::LabelsRef;

pub use types::NodeRef;

pub use types::OtherValue;

pub use types::PropsIter;

pub use types::PropsRef;

pub use types::RelRef;

pub use types::ValueRef;

pub use intern::intern;

pub use intern::intern_owned;

Modules

codec

Dependency-free binary codecs for store-owned values that must cross crate boundaries.

intern

Process-wide property-key intern table.

types

Storage-layer value types — the vocabulary every backend speaks.

Structs

ClosureRecorder

Convenience adapter that turns any Fn(MutationEvent) + Send + Sync into a MutationRecorder — useful in tests and for quick wiring.

ConstraintCatalog

ConstraintDefinition

ConstraintRequest

GraphStats

Snapshot of graph cardinality. Populated by the storage backend (see [super::InMemoryGraph::stats]).

InMemoryGraph

IndexCatalog

IndexDefinition

IndexRequest

What a caller asks the catalog to create. The explicit_name is None when the user did not name the index at the call site — the catalog will mint a deterministic one.

ListElementStats

List elements in one RANGE index scope (see GraphStats::node_list_elements).

MemoryReport

Aggregated retained-heap breakdown of an [InMemoryGraph].

PlanSignature

Builds a GraphStats::plan_signature: a hash of every input the planner reads from the stats, with cardinalities coarsened to power-of-two buckets. Backends feed it the same items GraphStats holds, in a deterministic order, without building the maps.

PropertyIndexKeyUsage

One active hash property index key in a MemoryReport.

SnapshotCatalogs

The parts of a snapshot that are not records: the id counters and the declared catalogs. Small next to the graph.

SnapshotGraphBuilder

Builds an InMemoryGraph from snapshot records one at a time.

SnapshotMeta

Metadata reported by snapshot encode / decode entry points. Kept small and stable so callers can log / diff it without reflecting on the payload.

SnapshotPayload

Portable representation of an entire store state.

StoredPropertyType

Stored representation of a property-type constraint’s target type. Mirrors the AST PropertyTypeExpr but lives in the store layer so the catalog has no AST dependency.

VectorIndexSnapshot

Snapshot of one vector index, carried through the snapshot pipeline. Only HNSW backends are persisted today (see [VectorIndexRegistry::to_snapshots]); the enum is open for a future Flat arm if pre-built flat backends become expensive to rebuild for some workload.

Enums

ConstraintViolation

Why a mutation was rejected by a constraint check. The codes match the GQLSTATUS-style shapes:

CreateConstraintError

CreateConstraintOutcome

CreateIndexError

CreateIndexOutcome

DropConstraintError

DropConstraintOutcome

DropIndexError

DropIndexOutcome

IndexConfigValue

MutationEvent

A durable, replayable mutation against a graph store.

SnapshotError

Errors a backend may surface while building or restoring a snapshot payload. Codec-level errors live in [lora-snapshot]; these are the store-side payload-shaped failures.

StoredConstraintKind

StoredIndexEntity

StoredIndexKind

StoredIndexState

StoredPropertyTypeTerm

StoredScalarType

StoredVectorCoordType

VectorBackendSnapshot

Traits

DeletedRecordSink

Observer for records a delete is about to drop.

GraphCatalog

GraphStorage

GraphStorageMut

MutationRecorder

Observer that receives every successful mutation in the order the store applied it.

Functions

property_value_heap_bytes

Bytes beyond the embedded discriminant of a PropertyValue. The embedded discriminant itself is counted by the caller (it sits inside whatever container owns the value).

Type Aliases

DistinctValues

(label or relationship type, property key) → estimated distinct values.