VectorCache: Vector Cache

In VectrixDB: Lightweight Vector Database with Embedded Machine Learning Models

Vector Cache

Description

Specialized cache for vector search results

Features:

• Query result caching

• Vector embedding caching

• Automatic cache invalidation

Public fields

prefix

Cache key prefix

Methods

Public methods

• VectorCache$new()

• VectorCache$get_search_results()

• VectorCache$set_search_results()

• VectorCache$get_vector()

• VectorCache$set_vector()

• VectorCache$invalidate_vector()

• VectorCache$stats()

• VectorCache$clone()

---

Method new()

Create a new VectorCache

Usage

VectorCache$new(cache, prefix = "vec:")

Arguments

cache

Base cache backend

prefix

Key prefix (default: "vec:")

---

Method get_search_results()

Get cached search results

Usage

VectorCache$get_search_results(collection, query, filter = NULL, limit = 10)

Arguments

collection

Collection name

query

Query vector

filter

Filter conditions

limit

Result limit

Returns

Cached results or NULL

---

Method set_search_results()

Cache search results

Usage

VectorCache$set_search_results(
  collection,
  query,
  results,
  filter = NULL,
  limit = 10,
  ttl = 300
)

Arguments

collection

Collection name

query

Query vector

results

Search results

filter

Filter conditions

limit

Result limit

ttl

Time to live (default: 300)

---

Method get_vector()

Get cached vector

Usage

VectorCache$get_vector(collection, vector_id)

Arguments

collection

Collection name

vector_id

Vector ID

Returns

Cached vector data or NULL

---

Method set_vector()

Cache vector data

Usage

VectorCache$set_vector(collection, vector_id, data, ttl = 3600)

Arguments

collection

Collection name

vector_id

Vector ID

data

Vector data

ttl

Time to live (default: 3600)

---

Method invalidate_vector()

Invalidate cached vector

Usage

VectorCache$invalidate_vector(collection, vector_id)

Arguments

collection

Collection name

vector_id

Vector ID

---

Method stats()

Get cache statistics

Usage

VectorCache$stats()

Returns

CacheStats object

---

Method clone()

The objects of this class are cloneable with this method.

Usage

VectorCache$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

VectrixDB documentation built on Feb. 20, 2026, 5:09 p.m.