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13 docs tagged with "RAG"

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Spring AI + PostgreSQL pgvector: Low-Cost RAG Solution

A comprehensive guide to building a Retrieval Augmented Generation (RAG) system using Spring AI and PostgreSQL pgvector. Learn how to eliminate specialized vector database costs while maintaining ACID compliance and high performance.

Spring AI vs LangChain4j: Which Java AI Framework to Choose?

A comprehensive architectural comparison between Spring AI and LangChain4j for enterprise Java developers. We analyze the API design, RAG capabilities, ecosystem integration, and long-term maintainability to help you decide the best stack for 2026.