Package org.springframework.ai.rag.postretrieval.compression

Interface DocumentCompressor

All Superinterfaces:

BiFunction<Query,List<Document>,List<Document>>

public interface DocumentCompressor
extends BiFunction<Query,List<Document>,List<Document>>

A component for compressing the content of each document to reduce noise and redundancy in the retrieved information, addressing challenges such as "lost-in-the-middle" and context length restrictions from the model.

Unlike DocumentSelector, this component does not remove entire documents from the list, but rather alters the content of the documents. Unlike DocumentRanker, this component does not change the order/score of the documents in the list.

Method Summary

Modifier and Type	Method	Description
default List<Document>	apply(Query query, List<Document> documents)
List<Document>	compress(Query query, List<Document> documents)	Compresses the content of each document.

Methods inherited from interface java.util.function.BiFunction

andThen

Method Details

compress

List<Document> compress(Query query,
 List<Document> documents)

Compresses the content of each document.

Parameters:

query - the query to compress documents for

documents - the list of documents whose content should be compressed

Returns:

a list of documents with compressed content

apply

default List<Document> apply(Query query,
 List<Document> documents)

Specified by:

apply in interface BiFunction<Query,List<Document>,List<Document>>