Class: RetrieverQueryEngine
A query engine that uses a retriever to query an index and then synthesizes the response.
Implements
Constructors
constructor
• new RetrieverQueryEngine(retriever, responseSynthesizer?, preFilters?, nodePostprocessors?)
Parameters
| Name | Type |
|---|---|
retriever | BaseRetriever |
responseSynthesizer? | BaseSynthesizer |
preFilters? | unknown |
nodePostprocessors? | BaseNodePostprocessor[] |
Defined in
packages/core/src/QueryEngine.ts:57
Properties
nodePostprocessors
• nodePostprocessors: BaseNodePostprocessor[]
Defined in
packages/core/src/QueryEngine.ts:54
preFilters
• Optional preFilters: unknown
Defined in
packages/core/src/QueryEngine.ts:55
responseSynthesizer
• responseSynthesizer: BaseSynthesizer
Defined in
packages/core/src/QueryEngine.ts:53
retriever
• retriever: BaseRetriever
Defined in
packages/core/src/QueryEngine.ts:52
Methods
applyNodePostprocessors
▸ Private applyNodePostprocessors(nodes): NodeWithScore<Metadata>[]
Parameters
| Name | Type |
|---|---|
nodes | NodeWithScore<Metadata>[] |
Returns
Defined in
packages/core/src/QueryEngine.ts:72
query
▸ query(params): Promise<AsyncIterable<Response>>
Query the query engine and get a response.
Parameters
| Name | Type |
|---|---|
params | QueryEngineParamsStreaming |
Returns
Promise<AsyncIterable<Response>>
Implementation of
Defined in
packages/core/src/QueryEngine.ts:89
▸ query(params): Promise<Response>
Parameters
| Name | Type |
|---|---|
params | QueryEngineParamsNonStreaming |
Returns
Promise<Response>
Implementation of
Defined in
packages/core/src/QueryEngine.ts:90
retrieve
▸ Private retrieve(query, parentEvent): Promise<NodeWithScore<Metadata>[]>
Parameters
| Name | Type |
|---|---|
query | string |
parentEvent | Event |
Returns
Promise<NodeWithScore<Metadata>[]>