Redis, Caching, Cache Invalidation, Distributed Cache, Cache Coherence.
productId; BigDecimal price = redisTemplate.opsForValue().get(cacheKey); if (price == null) { // Fetch price from the database price = getProductPriceFromDatabase(productId); // Update cache with the fetched price for 1 hour redisTemplate.opsForValue().set(cacheKey, price, 1, TimeUnit.HOURS); }