Redis, Caching, Cache Invalidation, Distributed Cache, Cache Coherence.
!= null) { product.setPrice(newPrice); String cacheKey = "product:" + id; redisTemplate.opsForValue().set(cacheKey, serializeProduct(product)); } // Update the primary database asynchronously CompletableFuture.runAsync(() -> { // Simulate a delay for the primary database update try {