11.3. 注入远程缓存

流程

1. 创建缓存限定符注解。

   @Remote("mygreetingcache") 

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   @Qualifier
   @Target({ElementType.FIELD, ElementType.PARAMETER, ElementType.METHOD})
   @Retention(RetentionPolicy.RUNTIME)
   @Documented
   public @interface RemoteGreetingCache { 

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   }

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   1

   要注入的缓存的名称。

   2

   创建 @RemoteGreetingCache 限定符。

2. 将 @RemoteGreetingCache 限定符添加到您的缓存注入点。

   public class GreetingService {
   
       @Inject @RemoteGreetingCache
       private RemoteCache<String, String> cache;
   
       public String greet(String user) {
           String cachedValue = cache.get(user);
           if (cachedValue == null) {
               cachedValue = "Hello " + user;
               cache.put(user, cachedValue);
           }
           return cachedValue;
       }
   }

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