Coherence Embedding Store

Overview

This module adds support for the Coherence embedding store.

Maven Coordinates

In addition to the Helidon integration with LangChain4J core dependencies, you must add the following:

pom.xml

<dependency>
  <groupId>io.helidon.integrations.langchain4j.providers</groupId>
  <artifactId>helidon-integrations-langchain4j-providers-coherence</artifactId>
</dependency>

CoherenceEmbeddingStore

To automatically create and add CoherenceEmbeddingStore to the service registry add the following lines to application.yaml:

application.yaml

langchain4j:
  providers:
    coherence:
      session: "session"

  embedding-stores:
    coherence-embedding-store:
      provider: coherence
      name: "namedMap"
      normalize-embeddings: false
      index: "hnsw"
      dimension: 768
      embedding-model: beanName

If enabled is set to false, the configuration is ignored, and the component is not created.

Configuration options

Key	Type	Description
`embedding-model`	string	Allows to configure embedding model by specifying named bean using `embeddingModel.service-registry.named: beanName`.
`dimension`	integer	The number of dimensions in the embeddings that will be stored in vector store.
`enabled`	boolean	If set to `true`, Coherence embedding store will be enabled.
`index`	string	Specifies vector index type use to create a vector index used to query embeddings. Only `hnsw` is supported.
`name`	string	Specifies name of the Coherence `com.tangosol.net.NamedMap` use to store embeddings.
`normalize-embeddings`	boolean	A flag that when true, forces normalization of embeddings on adding and searching.
`session`	string	The name of the `com.tangosol.net.Session` use to obtain the `com.tangosol.net.NamedMap` as specified with `name`.

Additional Information

Edit this page or Report an issue

Oracle Embedding Store

LangChain4j Oracle

Built-in Providers

Built-in Helidon LangChain4j providers lc4j-content-retriever and lc4j-in-memory