Retriever
RetrieverQueryEngine #
Bases: BaseQueryEngine
Retriever query engine.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
retriever |
BaseRetriever
|
A retriever object. |
required |
response_synthesizer |
Optional[BaseSynthesizer]
|
A BaseSynthesizer object. |
None
|
callback_manager |
Optional[CallbackManager]
|
A callback manager. |
None
|
Source code in llama-index-core/llama_index/core/query_engine/retriever_query_engine.py
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from_args
classmethod
#
from_args(retriever: BaseRetriever, llm: Optional[LLM] = None, response_synthesizer: Optional[BaseSynthesizer] = None, node_postprocessors: Optional[List[BaseNodePostprocessor]] = None, response_mode: ResponseMode = ResponseMode.COMPACT, text_qa_template: Optional[BasePromptTemplate] = None, refine_template: Optional[BasePromptTemplate] = None, summary_template: Optional[BasePromptTemplate] = None, simple_template: Optional[BasePromptTemplate] = None, output_cls: Optional[BaseModel] = None, use_async: bool = False, streaming: bool = False, **kwargs: Any) -> RetrieverQueryEngine
Initialize a RetrieverQueryEngine object.".
Parameters:
Name | Type | Description | Default |
---|---|---|---|
retriever |
BaseRetriever
|
A retriever object. |
required |
node_postprocessors |
Optional[List[BaseNodePostprocessor]]
|
A list of node postprocessors. |
None
|
verbose |
bool
|
Whether to print out debug info. |
required |
response_mode |
ResponseMode
|
A ResponseMode object. |
COMPACT
|
text_qa_template |
Optional[BasePromptTemplate]
|
A BasePromptTemplate object. |
None
|
refine_template |
Optional[BasePromptTemplate]
|
A BasePromptTemplate object. |
None
|
simple_template |
Optional[BasePromptTemplate]
|
A BasePromptTemplate object. |
None
|
use_async |
bool
|
Whether to use async. |
False
|
streaming |
bool
|
Whether to use streaming. |
False
|
optimizer |
Optional[BaseTokenUsageOptimizer]
|
A BaseTokenUsageOptimizer object. |
required |
Source code in llama-index-core/llama_index/core/query_engine/retriever_query_engine.py
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