Package dev.langchain4j.store.embedding.pinecone

Class PineconeEmbeddingStore

java.lang.Object

dev.langchain4j.store.embedding.pinecone.PineconeEmbeddingStore

All Implemented Interfaces:

EmbeddingStore<TextSegment>

public class PineconeEmbeddingStore
extends Object
implements EmbeddingStore<TextSegment>

Represents a Pinecone index as an embedding store.

Current implementation assumes the index uses the cosine distance metric.

WARNING! There is a known bug: Pinecone stores all numbers as floating-point values, which means Integer and Long values (e.g., 1746714878034235396) stored in Metadata may be corrupted and returned as incorrect numbers! Possible workaround: convert integer/double values to String before storing them in Metadata. Please note that in this case metadata filtering might not work properly!

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PineconeEmbeddingStore.Builder

Constructor Summary

Constructors

Constructor	Description
PineconeEmbeddingStore(String apiKey, String index, String nameSpace, String metadataTextKey, PineconeIndexConfig createIndex, String environment, String projectId)	Creates an instance of PineconeEmbeddingStore.

Method Summary

Modifier and Type	Method	Description
String	add(Embedding embedding)	Adds a given embedding to the store.
String	add(Embedding embedding, TextSegment textSegment)	Adds a given embedding and the corresponding content that has been embedded to the store.
void	add(String id, Embedding embedding)	Adds a given embedding to the store.
List<String>	addAll(List<Embedding> embeddings)	Adds multiple embeddings to the store.
List<String>	addAll(List<Embedding> embeddings, List<TextSegment> textSegments)	Adds multiple embeddings and their corresponding contents that have been embedded to the store.
static PineconeEmbeddingStore.Builder	builder()
void	removeAll()	Removes all embeddings from the store.
void	removeAll(Collection<String> ids)	Removes all embeddings that match the specified IDs from the store.
EmbeddingSearchResult<TextSegment>	search(EmbeddingSearchRequest request)	Searches for the most similar (closest in the embedding space) Embeddings.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface dev.langchain4j.store.embedding.EmbeddingStore

findRelevant, findRelevant, findRelevant, findRelevant, remove, removeAll

Constructor Details

PineconeEmbeddingStore

public PineconeEmbeddingStore(String apiKey,
 String index,
 String nameSpace,
 String metadataTextKey,
 PineconeIndexConfig createIndex,
 String environment,
 String projectId)

Creates an instance of PineconeEmbeddingStore.

Parameters:

apiKey - The Pinecone API key.

index - The name of the index (e.g., "test").

nameSpace - (Optional) Namespace. If not provided, "default" will be used.

metadataTextKey - (Optional) The key to find the text in the metadata. If not provided, "text_segment" will be used.

createIndex - (Optional) Configuration parameters to create an index, see PineconeServerlessIndexConfig and PineconePodIndexConfig

environment - (Deprecated) Please use @PineconeEmbeddingStore.Builder.createIndex(PineconeIndexConfig).

projectId - (Deprecated) Please use @PineconeEmbeddingStore.Builder.createIndex(PineconeIndexConfig).

Method Details

builder

public static PineconeEmbeddingStore.Builder builder()

add

public String add(Embedding embedding)

Description copied from interface: EmbeddingStore

Adds a given embedding to the store.

Specified by:

add in interface EmbeddingStore<TextSegment>

Parameters:

embedding - The embedding to be added to the store.

Returns:

The auto-generated ID associated with the added embedding.

add

public void add(String id,
 Embedding embedding)

Description copied from interface: EmbeddingStore

Adds a given embedding to the store.

Specified by:

add in interface EmbeddingStore<TextSegment>

Parameters:

id - The unique identifier for the embedding to be added.

embedding - The embedding to be added to the store.

add

public String add(Embedding embedding,
 TextSegment textSegment)

Description copied from interface: EmbeddingStore

Adds a given embedding and the corresponding content that has been embedded to the store.

Specified by:

add in interface EmbeddingStore<TextSegment>

Parameters:

embedding - The embedding to be added to the store.

textSegment - Original content that was embedded.

Returns:

The auto-generated ID associated with the added embedding.

addAll

public List<String> addAll(List<Embedding> embeddings)

Description copied from interface: EmbeddingStore

Adds multiple embeddings to the store.

Specified by:

addAll in interface EmbeddingStore<TextSegment>

Parameters:

embeddings - A list of embeddings to be added to the store.

Returns:

A list of auto-generated IDs associated with the added embeddings.

addAll

public List<String> addAll(List<Embedding> embeddings,
 List<TextSegment> textSegments)

Description copied from interface: EmbeddingStore

Adds multiple embeddings and their corresponding contents that have been embedded to the store.

Specified by:

addAll in interface EmbeddingStore<TextSegment>

Parameters:

embeddings - A list of embeddings to be added to the store.

textSegments - A list of original contents that were embedded.

Returns:

A list of auto-generated IDs associated with the added embeddings.

removeAll

public void removeAll(Collection<String> ids)

Description copied from interface: EmbeddingStore

Removes all embeddings that match the specified IDs from the store.

Specified by:

removeAll in interface EmbeddingStore<TextSegment>

Parameters:

ids - A collection of unique IDs of the embeddings to be removed.

removeAll

public void removeAll()

Description copied from interface: EmbeddingStore

Removes all embeddings from the store.

Specified by:

removeAll in interface EmbeddingStore<TextSegment>

search

public EmbeddingSearchResult<TextSegment> search(EmbeddingSearchRequest request)

Description copied from interface: EmbeddingStore

Searches for the most similar (closest in the embedding space) Embeddings.
All search criteria are defined inside the EmbeddingSearchRequest.
EmbeddingSearchRequest.filter() can be used to filter by various metadata entries (e.g., user/memory ID). Please note that not all EmbeddingStore implementations support Filtering.

Specified by:

search in interface EmbeddingStore<TextSegment>

Parameters:

request - A request to search in an EmbeddingStore. Contains all search criteria.

Returns:

An EmbeddingSearchResult containing all found Embeddings.