Crate modelvault_core 

Embedded ModelVault database engine: append-only segments, versioned schema catalog, and last-write-wins row storage keyed by primary values.

Start with Database for open, register, insert, and get. Supporting types include Catalog, ScalarValue, FieldDef, and DbError. For a small import set, use prelude.

Re-exports

pub use config::OpenMode;

pub use config::OpenOptions;

pub use config::RecoveryMode;

pub use catalog::Catalog;

pub use catalog::CatalogRecord;

pub use catalog::CollectionInfo;

pub use db::Database;

pub use error::DbError;

pub use error::DbErrorKind;

pub use error::FormatError;

pub use error::SchemaError;

pub use error::TransactionError;

pub use error::ValidationError;

pub use migration::MigrationPlan;

pub use migration::MigrationStep;

pub use record::RowValue;

pub use record::ScalarValue;

pub use schema::CollectionId;

pub use schema::CollectionSchema;

pub use schema::Constraint;

pub use schema::DbModel;

pub use schema::FieldDef;

pub use schema::IndexDef;

pub use schema::IndexKind;

pub use schema::SchemaVersion;

pub use schema::Type;

pub use schema_compat::classify_schema_update;

pub use schema_compat::validate_model_fields_against_catalog;

Modules

catalog

Persisted schema catalog: binary codec payloads and Catalog state.

checkpoint

Checkpoint payloads: persisted logical state snapshots to accelerate open/replay.

checksum

CRC32C helpers used by headers, superblocks, and segment payloads.

config

Open and recovery options for crate::db::Database.

db

Database handle and orchestration.

error

file_format

Fixed-size file header (TDB0) and format major/minor constants.

index

Persisted secondary index segments: payload codec and in-memory replay state.

manifest

Manifest v0: points at the last appended segment (tail of the log).

migration

Migration planning and helpers.

pager

prelude

Convenient re-exports for typical application code (Database, schema types, DbError).

publish

Append a manifest segment and rotate superblocks so readers see consistent tail metadata.

query

Minimal typed query AST, planning, and execution (0.7.0).

record

Record payloads (v1/v2) and row/scalar codecs.

schema

Collection identity, field paths, logical Type values, and the DbModel marker trait.

schema_compat

segments

Segment headers, scanning, and read/write helpers for the append-only log.

spill

Spill manager for bounded-memory query operators (0.12.0+; stabilized in 0.13.0).

sql

Minimal SQL adapter for DB-API (0.10.0+).

storage

superblock

Dual redundant superblocks (TSB0) storing generation and manifest pointer.

txn

Transaction control segment payloads (TxnBegin / TxnCommit / TxnAbort).

validation

Validation at write time: types, nesting, and field constraints (0.6+).