Retriever

Bases: QueryComponent

Retriever component.

Source code in llama-index-core/llama_index/core/base/base_retriever.py

class RetrieverComponent(QueryComponent):
    """Retriever component."""

    model_config = ConfigDict(arbitrary_types_allowed=True)
    retriever: BaseRetriever = Field(..., description="Retriever")

    def set_callback_manager(self, callback_manager: CallbackManager) -> None:
        """Set callback manager."""
        self.retriever.callback_manager = callback_manager

    def _validate_component_inputs(self, input: Dict[str, Any]) -> Dict[str, Any]:
        """Validate component inputs during run_component."""
        # make sure input is a string
        input["input"] = validate_and_convert_stringable(input["input"])
        return input

    def _run_component(self, **kwargs: Any) -> Any:
        """Run component."""
        output = self.retriever.retrieve(kwargs["input"])
        return {"output": output}

    async def _arun_component(self, **kwargs: Any) -> Any:
        """Run component."""
        output = await self.retriever.aretrieve(kwargs["input"])
        return {"output": output}

    @property
    def input_keys(self) -> InputKeys:
        """Input keys."""
        return InputKeys.from_keys({"input"})

    @property
    def output_keys(self) -> OutputKeys:
        """Output keys."""
        return OutputKeys.from_keys({"output"})

input_keys property

input_keys: InputKeys

Input keys.

output_keys property

output_keys: OutputKeys

Output keys.

set_callback_manager

set_callback_manager(callback_manager: CallbackManager) -> None

Set callback manager.

Source code in llama-index-core/llama_index/core/base/base_retriever.py

def set_callback_manager(self, callback_manager: CallbackManager) -> None:
    """Set callback manager."""
    self.retriever.callback_manager = callback_manager