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2.2. Using the ConfigurationBuilder API to Configure the Cache API

JBoss Data Grid uses a ConfigurationBuilder API to configure caches.
Caches are configured programmatically using the ConfigurationBuilder helper object.
The following is an example of a synchronously replicated cache configured programmatically using the ConfigurationBuilder API: 
Configuration c = new ConfigurationBuilder().clustering().cacheMode(CacheMode.REPL_SYNC).build();
     
String newCacheName = "repl";
manager.defineConfiguration(newCacheName, c);
Cache<String, String> cache = manager.getCache(newCacheName);
Configuration Explanation:

An explanation of each line of the provided configuration is as follows: 

  1. Configuration c = new ConfigurationBuilder().clustering().cacheMode(CacheMode.REPL_SYNC).build();
    In the first line of the configuration, a new cache configuration object (named c) is created using the ConfigurationBuilder. Configuration c is assigned the default values for all cache configuration options except the cache mode, which is overridden and set to synchronous replication (REPL_SYNC). 
  2. String newCacheName = "repl";
    In the second line of the configuration, a new variable (of type String) is created and assigned the value repl. 
  3. manager.defineConfiguration(newCacheName, c);
    In the third line of the configuration, the cache manager is used to define a named cache configuration for itself. This named cache configuration is called repl and its configuration is based on the configuration provided for cache configuration c in the first line. 
  4. Cache<String, String> cache = manager.getCache(newCacheName);
    In the fourth line of the configuration, the cache manager is used to obtain a reference to the unique instance of the repl that is held by the cache manager. This cache instance is now ready to be used to perform operations to store and retrieve data.
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