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Pure Java Enterprise AI/LLM Integration (EAI 2.0) by Adam Bien
Discover enterprise-grade Java LLM integration patterns, from local model deployment to cloud APIs. Learn key architectural approaches for reliable, cost-effective AI systems in Java.
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Pure Java LLM integration requires minimal dependencies and can be packaged as a single JAR file, making deployment and installation straightforward
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Local LLM models can run efficiently in Java without JNI dependencies thanks to projects like llama3.java and jllama, offering better cost control compared to cloud APIs
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Enterprise LLM patterns mirror microservice patterns - circuit breakers, bulkheads, timeouts, retries are essential for handling throttling and reliability issues
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LLMs should be treated as slow, unreliable, idempotent microservices with high latency; architecture should account for this
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Cloud LLM APIs can become very expensive ($7+ per call) and face throttling issues - local models or hybrid approaches may be more cost-effective
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Caching LLM responses and implementing proper prompt management are critical for controlling costs and ensuring consistency
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LangChain4j provides enterprise integration features like vector databases, embedding models, and RAG (Retrieval Augmented Generation) capabilities
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Testing LLM integrations requires new approaches like parameterized tests with different prompts and temperatures to evaluate responses
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Enterprise concerns like compliance, traceability, and security drive architectural decisions around LLM integration
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Java’s performance for LLM workloads is competitive with Python while offering better enterprise integration capabilities and deployment options