KnowledgeGraph: Knowledge Graph

In VectrixDB: Lightweight Vector Database with Embedded Machine Learning Models

Knowledge Graph

Description

Graph storage for entities and relationships

Public fields

name

Graph name

Methods

Public methods

• KnowledgeGraph$new()

• KnowledgeGraph$add_entity()

• KnowledgeGraph$add_relationship()

• KnowledgeGraph$get_entity()

• KnowledgeGraph$get_all_entities()

• KnowledgeGraph$get_all_relationships()

• KnowledgeGraph$get_neighbors()

• KnowledgeGraph$traverse()

• KnowledgeGraph$entity_count()

• KnowledgeGraph$relationship_count()

• KnowledgeGraph$search_entities()

• KnowledgeGraph$clone()

---

Method new()

Create a new KnowledgeGraph

Usage

KnowledgeGraph$new(name = "default")

Arguments

name

Graph name

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Method add_entity()

Add an entity

Usage

KnowledgeGraph$add_entity(entity)

Arguments

entity

Entity object

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Method add_relationship()

Add a relationship

Usage

KnowledgeGraph$add_relationship(relationship)

Arguments

relationship

Relationship object

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Method get_entity()

Get entity by ID

Usage

KnowledgeGraph$get_entity(entity_id)

Arguments

entity_id

Entity ID

Returns

Entity or NULL

---

Method get_all_entities()

Get all entities

Usage

KnowledgeGraph$get_all_entities()

Returns

List of Entity objects

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Method get_all_relationships()

Get all relationships

Usage

KnowledgeGraph$get_all_relationships()

Returns

List of Relationship objects

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Method get_neighbors()

Get neighbors of an entity

Usage

KnowledgeGraph$get_neighbors(entity_id, direction = "both")

Arguments

entity_id

Entity ID

direction

"out", "in", or "both"

Returns

List of Entity objects

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Method traverse()

Traverse graph from seed entities

Usage

KnowledgeGraph$traverse(seed_ids, max_depth = 2)

Arguments

seed_ids

Starting entity IDs

max_depth

Maximum depth

Returns

SubGraph object

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Method entity_count()

Get entity count

Usage

KnowledgeGraph$entity_count()

Returns

Integer

---

Method relationship_count()

Get relationship count

Usage

KnowledgeGraph$relationship_count()

Returns

Integer

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Method search_entities()

Search entities by name

Usage

KnowledgeGraph$search_entities(query, limit = 10)

Arguments

query

Query string

limit

Max results

Returns

List of Entity objects

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Method clone()

The objects of this class are cloneable with this method.

Usage

KnowledgeGraph$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

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