dev.langchain4j.data.document

Interface DocumentTransformer

public interface DocumentTransformer

Defines the interface for transforming a Document. Implementations can perform a variety of tasks such as transforming, filtering, enriching, etc.

Method Summary

Modifier and Type	Method and Description
Document	transform(Document document) Transforms a provided document.
default List<Document>	transformAll(List<Document> documents) Transforms all the provided documents.

Method Detail

transform

Document transform(Document document)

Transforms a provided document.

Parameters:

document - The document to be transformed.

Returns:

The transformed document, or null if the document should be filtered out.

transformAll

default List<Document> transformAll(List<Document> documents)

Transforms all the provided documents.

Parameters:

documents - A list of documents to be transformed.

Returns:

A list of transformed documents. The length of this list may be shorter or longer than the original list. Returns an empty list if all documents are filtered out.