In -depth analysis

In -depth analysis Introduction: "Circumflex Cache" is a high -performance cache framework based on Java, which aims to provide effective cache management and fast data access.This article will in -depth analysis of the technical principles of this framework, including its design principles, core concepts, main components, and use examples. 1. Design principles: The design of the "Circumflex Cache" framework follows the following principles: -The high performance: Through carefully optimized data structure and algorithm, quickly cache data access and update. -Feilicity: Support flexible cache strategy configuration to adapt to different application scenarios and data access modes. -The fault tolerance: Provide high availability and fault -tolerant mechanism to ensure data consistency and reliability in cache service failure or abnormal conditions. 2. Core concept: The core concept of the "Circumflex Cache" framework includes the following elements: -Cache: Temporary storage space for storing and managing data, providing fast data access.Caches can be regarded as a key value pair, where the key is used for unique identification data, and the value storage actual data object or reference. -Cache Policy: strategies used to configure and manage cache, including data validity period, cache capacity, elimination algorithm, etc.Select suitable strategies according to specific needs to improve the cache hit rate and efficiency. -Cache loader: Responsible for loading data from data source to cache.When you need to obtain data that is not in the cache, the cache loader will read the data from the data source and put it in the cache according to the configuration loading strategy. -Cache Listener: Used to monitor changes in cache, such as data update, deletion, etc.By caching the listener, the integration of cache and other components can be achieved, and data synchronization between the cache and the database, message queue, etc. can be achieved. 3. Main components: "Circumflex Cache" framework is mainly composed of the following components: -Cachemanager: Responsible for managing and creating cache objects.Through the CacheManager, you can create, obtain and destroy the cache instance, and provide operation methods related to cache management. -CACHE: Actual cache objects are used to store and manage cache data.Cache provides a series of methods for data storage, reading and deleting operations, and supports the configuration of cache strategies. -CachePolicy: Configuration and management cache strategies, including the validity period of data, cache capacity, elimination algorithm, etc.You can set the cache configuration item through cachePolicy and associate it with the cache object. -Cacheloader: Define the data loading interface. By implementing cacheLoader, you can customize data loading logic.When there is no required data in the cache, the cache loader calls the interface method to load the data and stores the cache. -Cachelistener: The interface of monitoring cache changes, through the implementation of Cachelistener to achieve response logic of cache changes.You can monitor data updates, delete and other events, and processed accordingly. 4. Use examples: The following is a simple example display how to use the "Circumflex Cache" framework: // Create a cache manager CacheManager cacheManager = CacheManager.getInstance(); // Create cache strategy CachePolicy cachePolicy = new CachePolicy(); cachePolicy.SetexpirationTime (600); // Setting is valid for 10 minutes cachePolicy.setCapAcity (1000); // Set the cache capacity of 1000 // Create a cache object Cache<String, Object> cache = cacheManager.createCache("myCache", cachePolicy); // Storage data to cache cache.put("key1", "value1"); // Read data from the cache Object value = cache.get("key1"); // Delete the data in the cache cache.remove("key1"); // Turn off the cache manager cacheManager.shutdown(); The above example code first obtains the instance of the cache manager through the cacheManager and creates a cache strategy object.Then use a cache manager to create an cache instance called "MyCache".Next, we demonstrated how to store the data into the cache, read data from the cache, and delete the data in the cache.Finally, turn off the cache manager by calling the shortdown () method of the cache manager. This is just a brief introduction to the technical principles, core concepts, main components, and examples of the "Circumflex Cache" framework.Through the analysis of this article, it is believed that readers can have a basic understanding of the framework and provide a reference for the cache management in actual development.