Redis, Caching, Cache Invalidation, Distributed Cache, Cache Coherence.
Replace this with actual database query // For simplicity, we'll return a list of dummy products return List.of( new Product(1L, "Product A"), new Product(2L, "Product B"), new Product(3L, "Product C") ); } public BigDecimal getProductPrice(Long productId) { String cacheKey = "product:price:" +