vivo Internet Technology
Jun 16, 2021 · Backend Development
Understanding Java SPI and Dubbo Extension Loading Mechanism
The article explains Java’s built‑in SPI mechanism, then details Dubbo’s enhanced SPI—including ExtensionLoader caching, wrapper and adaptive classes, and @Activate automatic activation—showing how extensions are discovered from META‑INF directories, classified, and loaded on demand for flexible, plug‑in style service implementation.
AdaptiveDubboJava
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