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Java进阶篇之AtomicReference:一次替换引用,读到一份完整状态
本内容遵循CC 4.0 BY-SA版权协议 上一篇用LongAccumulator处理可以合并的统计样本。配置更新面对的是另一类问题:版本号、超时值和路由列表需要一起变化,读取者也希望拿到同一份状态。把这些字段装进不可变对象,再整体替换引用,能让更新边界更容易看清。
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