Solon Framework Offers Three-Annotation Caching System with Tag-Based Eviction

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The Solon Java framework provides a caching layer built around just three annotations: @Cache for read-through caching, @CachePut to force a method run and update the cache, and @CacheRemove to evict entries after execution. A standout feature is tag-based eviction, where multiple cache entries can be grouped under a shared tag and cleared in a single operation. This solves a common limitation of key-only eviction in other annotation-based caching systems, making it practical for scenarios like paginated search results. Cache keys support expression syntax to resolve method parameters or return values, and an auto-generated MD5 key is used when no explicit key is provided. Developers are advised to avoid tagging thousands of keys under a single tag, as the tag index stores all associated keys as a list.

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