Result Cache Manager

The Result Cache Manager is a critical sub-component of the Execution Engine responsible for storing, retrieving, and invalidating cached results of previously executed queries or computations. It operates by intercepting execution requests, checking if identical requests have been processed recently, and returning cached results when available to avoid redundant processing. This component manages cache policies, storage allocation, expiration mechanisms, and ensures data consistency between cached results and underlying data sources.

The Result Cache Manager works by maintaining an in-memory or persistent storage structure (typically a hash table or similar data structure) that maps query signatures or computation parameters to their results. When the Execution Engine receives a processing request, the manager first checks the cache using a hash of the request parameters. If a valid cached result exists, it's returned immediately; otherwise, the request is passed to the execution pipeline, and the result is stored in cache upon completion. The manager implements cache eviction policies (LRU, LFU, or time-based) and handles cache invalidation when underlying data changes.