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  package org.apache.cayenne.jcache;
  
  import javax.cache.configuration.Configuration;
  import javax.cache.configuration.MutableConfiguration;
  import javax.cache.expiry.CreatedExpiryPolicy;
  import javax.cache.expiry.Duration;
  
  /**
   * <p>
   *     Default JCache configuration factory.
   * </p>
   * <p>
   *     Parameters:
   *     <ul>
   *         <li>store-by-reference</li>
   *         <li>expire in 10 minutes</li>
   *     </ul>
   * </p>
   *
   * @since 4.0
   */
  public class JCacheDefaultConfigurationFactory implements JCacheConfigurationFactory {
  
      private final Configuration<Object, Object> configuration = new MutableConfiguration<>()
              .setStoreByValue(false)
              .setExpiryPolicyFactory(CreatedExpiryPolicy.factoryOf(Duration.TEN_MINUTES));
  
      /**
       * @param cacheGroup is unused by default configuration factory
       * @return cache configuration
       */
      public Configuration<Object, Object> create(String cacheGroup) {
          return configuration;
      }
  }
  