March 11, 2026
Hybrid search with Java: LangChain4j Elasticsearch integration
Learn how to use hybrid search in LangChain4j via its Elasticsearch integrations, with a complete Java example.
LangChain4j with Elasticsearch as the embedding store
LangChain4j (LangChain for Java) has Elasticsearch as an embedding store. Discover how to use it to build your RAG application in plain Java.
October 3, 2024
Testing your Java code with mocks and real Elasticsearch
Learn how to write your automated tests for Elasticsearch, using mocks and Testcontainers
Introducing LangChain4j to simplify LLM integration into Java applications
LangChain4j (LangChain for Java) is a powerful toolset to build your RAG application in plain Java.
ES|QL queries to Java objects
Learn how to perform ES|QL queries with the Java client. Follow this guide for step-by-step instructions, including examples.