Cache2k core implementation framework basic structure

Cache2k is a high -performance, lightweight cache library, which is designed for providing fast, flexible and reliable cache solutions.The core implementation framework of Cache2K is based on the following basic structures.This article will introduce the core implementation framework and related code examples of cache2k. 1. Cache Interface: Cache2k defines a general cache interface. Through the interface, you can perform various operations on the cache, such as reading, writing, deleting, and removing.The cache interface provides a set of methods to allow applications to perform flexible operations on the cache. Cache<Key, Value> cache = Cache2kBuilder.of(Key.class, Value.class) .build(); 2. Cache Configurator: Cache2k provides a cache configuration for various configurations when creating a cache instance.The configuration can set up cache maximum capacity, expired time, refresh strategy, event monitoring, etc.Through the configuration, the cache can be customized according to the specific needs of the application. Cache2kBuilder<Key, Value> builder = Cache2kBuilder.of(Key.class, Value.class) .expireAfterWrite(10, TimeUnit.MINUTES) .maximumSize(1000) .addListener(new CacheListener<Key, Value>() { // ... }); Cache<Key, Value> cache = builder.build(); 3. Cache loader: Cache2k supports the cache item through a cache loader.The cache loader defines the logic of loading the cache item. When there is no value corresponding to a key in the cache, the cache loader will be responsible for loading the value from the data source into the cache. Cache2kBuilder<Key, Value> builder = Cache2kBuilder.of(Key.class, Value.class) .loader(new CacheLoader<Key, Value>() { public Value load(Key key) throws Exception { // Load data from the data source // ... } }); Cache<Key, Value> cache = builder.build(); 4. Cache Refresh: Cache2K supports the entry in the regular cache to maintain the consistency of the cache data and the data source.By configured the refresh strategy, the refresh operation can be triggered regularly or based on other conditions to ensure that the data in the cache is the latest. Cache2kBuilder<Key, Value> builder = Cache2kBuilder.of(Key.class, Value.class) .refreshAhead(true) .refreshAfterWrite(5, TimeUnit.MINUTES) .loader(new CacheLoader<Key, Value>() { public Value load(Key key) throws Exception { // ... } }); Cache<Key, Value> cache = builder.build(); 5. Cache Statistics: Cache2k provides rich cache statistics to monitor and measure cache performance.These statistical information can help developers understand the use of cache, hit rate, number of loading, number of cache items, etc. CacheStatistics statistics = cache.statistics(); long hitCount = statistics.getHitCount(); long missCount = statistics.getMissCount(); int size = statistics.getSize(); To sum up, the core implementation framework of the Cache2K includes cache interfaces, cache configurations, cache loaders, cache refresh and cache statistics.Through these core structures, developers can easily create high -performance and customized cache solutions. The above is the basic structure and related code example of the Cache2K core implementation framework.Through cache2k, developers can easily achieve high -performance cache function, thereby improving the performance and response speed of the application.