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Thread safety is not a property you add after the fact — it is a design decision made at the class level. Three strategies cover nearly every case: confinement, immutability, and synchronization. Here is how to reason about which applies and how to apply it correctly.
Read moreSpring Boot's Redis cache integration works with minimal configuration. The decisions that matter — serialization format, key design, eviction policy, and how to handle cache-aside vs read-through patterns — require deliberate choices that affect correctness and performance under load.
Read moreMost Ruby codebases use each, map, and select for everything. Enumerable ships with 60+ methods, and a dozen of them would eliminate entire blocks of hand-rolled iteration logic sitting in your codebase right now.
Read moreMost Ruby codebases use rescue and raise for everything, which conflates recoverable domain failures with unexpected system errors. Here is a structured approach to error handling that scales past a few controllers.
Read moreEvents decouple producers from consumers within and across services. Spring Boot offers three tiers: in-process ApplicationEvents for same-JVM decoupling, Spring Integration for lightweight messaging patterns, and external brokers for durability and cross-service communication.
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