Crate nedb_engine 

NEDB v2 — Content-addressed DAG storage engine.

Architecture:

objects/ — content-addressed, encrypted, BLAKE2b-verified nodes (immutable) indexes/ — id index (file-per-doc) + sorted indexes (BTreeMap, in-memory) graph/ — typed DAG edges (filesystem entries) MANIFEST — BLAKE2b Merkle root of all collection HEADs

Properties:

• Uncorruptable: atomic writes (tmp→rename), hash verification on read
• Parallel: no global lock on writes; each doc has its own index file
• Instant cold start: no AOF replay; rebuild sorted indexes in parallel
• Self-healing: migrate.rs handles v1→v2 on first startup
• Tamper-evident: BLAKE2b chain from MANIFEST → collection heads → nodes

Re-exports

pub use store::Dek;

pub use store::Node;

pub use store::ObjectStore;

pub use index::IdIndex;

pub use index::OrderedValue;

pub use index::SortedIndexes;

pub use graph::GraphStore;

pub use db::Db;

Modules

db

Main DAG database — coordinates ObjectStore, IdIndex, SortedIndexes, GraphStore.

graph

DAG edge store — typed directed edges between node hashes.

index

Index store for NEDB v2.

migrate

Automatic v1 → v2 DAG migration.

nql

NQL (NEDB Query Language) parser and executor for v2 DAG storage.

segment

segment.rs — NEDB v3 packed object substrate.

server

nedbd v2 HTTP server — same /v1/databases/* API surface as v1. Drop-in replacement: Vision, itsl_mirror, all existing clients work unchanged.

store

Content-addressed object store — the foundation of NEDB v2.