Cache2k core implementation framework overview

Cache2k is a high -performance Java cache library, which aims to provide fast and stable cache support.It uses modern cache technology and algorithms to provide high -efficiency data access, and has an easy -to -use API interface. Cache2k's core implementation framework consists of the following main components: 1. Cache interface: Cache2k provides a simple but powerful Cache interface for storage and access data items.Through this interface, users can use any type of Java objects as cache values and access through unique keys. The following is an example of Java code for creating a simple Cache instance: Cache<String, Integer> cache = Cache2kBuilder.of(String.class, Integer.class) .eternal(true) .build(); The above code creates a Cache instance with string keys to string and values.`Eternal (True)` method specifies that the data items in the cache never expire. 2. Caches: Cache2k provides a variety of cache strategies to manage data items in cache.By defining appropriate strategies, the time, size, and update behavior of the object of the cache can be controlled. The following is an example code that uses cache2k (recently used) cache strategies: Cache<String, Integer> cache = Cache2kBuilder.of(String.class, Integer.class) .expireAfterWrite(5, TimeUnit.MINUTES) .entryCapacity(100) .loader(this::loadDataFromDatabase) .build(); The above code creates a CACHE instance with a 5 -minute expiration time and maximum 100 items.The `loader` method specifies the logic of loading data from the database when the cache is not hit. 3. Asynchronous support: Cache2k provides support for asynchronous operations to improve the response performance of cache.You can use the `CompletableFuture` or` CompletionStage` to process the results of asynchronous operations. The following is an example of using asynchronous loading data items: Cache<String, CompletableFuture<Integer>> cache = Cache2kBuilder.of(String.class, CompletableFuture.class) .loader((key) -> CompletableFuture.supplyAsync(() -> loadDataFromDatabase(key))) .build(); The above code creates a cache instance of asynchronous loading data items.When the cache is unprepared, it will use the method to load data from the database. In summary, Cache2K is a high -performance Java cache library that provides fast and stable cache support through its core implementation framework.By using the Cache interface, cache strategy and asynchronous support, developers can easily build an efficient cache system.