Module persistence 

Persistence Module

This module provides functionality for saving and loading collections to/from disk. It supports collection-level persistence with full override strategy.

File Format

Collections are saved as JSON files with the following structure:

{
  "version": "1.0.0",
  "metadata": {
    "name": "collection_name",
    "created_at": "2025-01-21T10:00:00Z",
    "vector_count": 1000,
    "dimension": 768,
    "index_type": "HNSW"
  },
  "index": {
    // Serialized VectorIndexWrapper
  }
}

Structs

CollectionData

Complete collection data structure for persistence

CollectionMetadata

Collection metadata for persistence

FileHeader

File header containing version and format information

Enums

PersistenceError

Error types for persistence operations

Functions

load_collection_from_file

Load a collection from a file

save_collection_to_file

Save a collection to a file