Class: KeywordTableIndex

The KeywordTableIndex, an index that extracts keywords from each Node and builds a mapping from each keyword to the corresponding Nodes of that keyword.

Extends

• BaseIndex<KeywordTable>

Constructors

new KeywordTableIndex()

new KeywordTableIndex(init): KeywordTableIndex

Parameters

• init: BaseIndexInit<KeywordTable>

Returns

KeywordTableIndex

Overrides

BaseIndex.constructor

Defined in

packages/llamaindex/src/indices/keyword/index.ts:159

Properties

docStore

docStore: BaseDocumentStore

Inherited from

BaseIndex.docStore

Defined in

packages/llamaindex/src/indices/BaseIndex.ts:27

---

indexStore?

optional indexStore: BaseIndexStore

Inherited from

BaseIndex.indexStore

Defined in

packages/llamaindex/src/indices/BaseIndex.ts:28

---

indexStruct

indexStruct: KeywordTable

Inherited from

BaseIndex.indexStruct

Defined in

packages/llamaindex/src/indices/BaseIndex.ts:29

---

serviceContext?

optional serviceContext: ServiceContext

Inherited from

BaseIndex.serviceContext

Defined in

packages/llamaindex/src/indices/BaseIndex.ts:25

---

storageContext

storageContext: StorageContext

Inherited from

BaseIndex.storageContext

Defined in

packages/llamaindex/src/indices/BaseIndex.ts:26

Methods

asQueryEngine()

asQueryEngine(options?): BaseQueryEngine

Create a new query engine from the index. It will also create a retriever and response synthezier if they are not provided.

Parameters

• options?

you can supply your own custom Retriever and ResponseSynthesizer

• options.nodePostprocessors?: BaseNodePostprocessor[]

• options.preFilters?: unknown

• options.responseSynthesizer?: BaseSynthesizer

• options.retriever?: BaseRetriever

Returns

BaseQueryEngine

Overrides

BaseIndex.asQueryEngine

Defined in

packages/llamaindex/src/indices/keyword/index.ts:240

---

asRetriever()

asRetriever(options?): BaseRetriever

Create a new retriever from the index.

Parameters

• options?: any

Returns

BaseRetriever

Overrides

BaseIndex.asRetriever

Defined in

packages/llamaindex/src/indices/keyword/index.ts:229

---

deleteNode()

deleteNode(nodeId): void

Parameters

• nodeId: string

Returns

void

Defined in

packages/llamaindex/src/indices/keyword/index.ts:337

---

deleteNodes()

deleteNodes(nodeIds, deleteFromDocStore): Promise<void>

Parameters

• nodeIds: string[]

• deleteFromDocStore: boolean

Returns

Promise<void>

Defined in

packages/llamaindex/src/indices/keyword/index.ts:355

---

deleteRefDoc()

deleteRefDoc(refDocId, deleteFromDocStore?): Promise<void>

Parameters

• refDocId: string

• deleteFromDocStore?: boolean

Returns

Promise<void>

Overrides

BaseIndex.deleteRefDoc

Defined in

packages/llamaindex/src/indices/keyword/index.ts:369

---

insert()

insert(document): Promise<void>

Insert a document into the index.

Parameters

• document: Document<Metadata>

Returns

Promise<void>

Inherited from

BaseIndex.insert

Defined in

packages/llamaindex/src/indices/BaseIndex.ts:60

---

insertNodes()

insertNodes(nodes): Promise<void>

Parameters

• nodes: BaseNode<Metadata>[]

Returns

Promise<void>

Overrides

BaseIndex.insertNodes

Defined in

packages/llamaindex/src/indices/keyword/index.ts:327

---

buildIndexFromNodes()

static buildIndexFromNodes(nodes, docStore, serviceContext?): Promise<KeywordTable>

Get keywords for nodes and place them into the index.

Parameters

• nodes: BaseNode<Metadata>[]

• docStore: BaseDocumentStore

• serviceContext?: ServiceContext

Returns

Promise<KeywordTable>

Defined in

packages/llamaindex/src/indices/keyword/index.ts:310

---

extractKeywords()

static extractKeywords(text, serviceContext?): Promise<Set<string>>

Parameters

• text: string

• serviceContext?: ServiceContext

Returns

Promise<Set<string>>

Defined in

packages/llamaindex/src/indices/keyword/index.ts:254

---

fromDocuments()

static fromDocuments(documents, args): Promise<KeywordTableIndex>

High level API: split documents, get keywords, and build index.

Parameters

• documents: Document<Metadata>[]

• args = {}

• args.serviceContext?: ServiceContext

• args.storageContext?: StorageContext

Returns

Promise<KeywordTableIndex>

Defined in

packages/llamaindex/src/indices/keyword/index.ts:277

---

init()

static init(options): Promise<KeywordTableIndex>

Parameters

• options: KeywordIndexOptions

Returns

Promise<KeywordTableIndex>

Defined in

packages/llamaindex/src/indices/keyword/index.ts:163