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Chapter 2. Using Embedded Caches
Embed Data Grid caches directly in your project for in-memory data storage.
2.1. Adding the EmbeddedCacheManager Bean
Configure your application to use embedded caches.
Procedure
-
Add
infinispan-spring-boot3-starter-embedded
to your project’s classpath to enable Embedded mode. Use the Spring
@Autowired
annotation to include anEmbeddedCacheManager
bean in your Java configuration classes, as in the following example:private final EmbeddedCacheManager cacheManager; @Autowired public YourClassName(EmbeddedCacheManager cacheManager) { this.cacheManager = cacheManager; }
You are now ready to use Data Grid caches directly within your application, as in the following example:
cacheManager.getCache("testCache").put("testKey", "testValue"); System.out.println("Received value from cache: " + cacheManager.getCache("testCache").get("testKey"));
2.2. Cache Manager Configuration Beans
You can customize the Cache Manager with the following configuration beans:
-
InfinispanGlobalConfigurer
-
InfinispanCacheConfigurer
-
Configuration
-
InfinispanConfigurationCustomizer
-
InfinispanGlobalConfigurationCustomizer
You can create one InfinispanGlobalConfigurer
bean only. However you can create multiple configurations with the other beans.
InfinispanCacheConfigurer Bean
@Bean public InfinispanCacheConfigurer cacheConfigurer() { return manager -> { final Configuration ispnConfig = new ConfigurationBuilder() .clustering() .cacheMode(CacheMode.LOCAL) .build(); manager.defineConfiguration("local-sync-config", ispnConfig); }; }
Configuration Bean
Link the bean name to the cache that it configures, as follows:
@Bean(name = "small-cache") public org.infinispan.configuration.cache.Configuration smallCache() { return new ConfigurationBuilder() .read(baseCache) .memory().size(1000L) .memory().evictionType(EvictionType.COUNT) .build(); } @Bean(name = "large-cache") public org.infinispan.configuration.cache.Configuration largeCache() { return new ConfigurationBuilder() .read(baseCache) .memory().size(2000L) .build(); }
Customizer Beans
@Bean public InfinispanGlobalConfigurationCustomizer globalCustomizer() { return builder -> builder.transport().clusterName(CLUSTER_NAME); } @Bean public InfinispanConfigurationCustomizer configurationCustomizer() { return builder -> builder.memory().evictionType(EvictionType.COUNT); }
2.3. Enabling Spring Cache Support
With both embedded and remote caches, Data Grid provides an implementation of Spring Cache that you can enable.
Procedure
-
Add the
@EnableCaching
annotation to your application.
If the Data Grid starter detects the:
-
EmbeddedCacheManager
bean, it instantiates a newSpringEmbeddedCacheManager
. -
RemoteCacheManager
bean, it instantiates a newSpringRemoteCacheManager
.
Reference