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Summary

SummaryIndexRetriever #

Bases: BaseRetriever

Simple retriever for SummaryIndex that returns all nodes.

Parameters:

Name Type Description Default
index SummaryIndex

The index to retrieve from.

 required
Source code in llama-index-core/llama_index/core/indices/list/retrievers.py 
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class SummaryIndexRetriever(BaseRetriever):
    """Simple retriever for SummaryIndex that returns all nodes.

    Args:
        index (SummaryIndex): The index to retrieve from.

    """

    def __init__(
        self,
        index: SummaryIndex,
        callback_manager: Optional[CallbackManager] = None,
        object_map: Optional[dict] = None,
        verbose: bool = False,
        **kwargs: Any,
    ) -> None:
        self._index = index
        super().__init__(
            callback_manager=callback_manager, object_map=object_map, verbose=verbose
        )

    def _retrieve(
        self,
        query_bundle: QueryBundle,
    ) -> List[NodeWithScore]:
        """Retrieve nodes."""
        del query_bundle

        node_ids = self._index.index_struct.nodes
        nodes = self._index.docstore.get_nodes(node_ids)
        return [NodeWithScore(node=node) for node in nodes]