• Since the Document object's reference to the embedding is deprecated and will be removed, the VectorStore implementations require a way to store the embedding of the corresponding Document objects

    • One way to fix this is, to have the EmbeddingModel#embed to return the embeddings in the same order as that of the Documents passed to it.

      • Since both the Document and embedding collections use the List object, their iteration operation will make sure to keep them in line with the same order.
        • A fix is required to preserve the order when batching strategy is applied.
        • Updated the Javadoc for BatchingStrategy -
        • Fixed the Document List order in TokenCountBatchingStrategy
    • Refactored the vector store implementations to update this change

Resolves #GH-1826

Comment From: tzolov

rebased, cleaned, squashed and merged at : ebd29e0959086ea950d505a8aefb9e32ca7732a7