如何通过Spring注入com.github.benmanes.caffeine.cache.Cache？

Question

下面是我的缓存的实例化方式：

return Caffeine.newBuilder()
                .maximumSize(10)
                .expireAfterWrite(15, TimeUnit.MINUTES)
                .build()

如何配置Spring来执行依赖注入？

<bean id="matchedDFUCache" class="com.github.benmanes.caffeine.cache.Caffeine" factory-method="newBuilder"></bean>

给了我这个错误：

[coral:launch] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'realTimeForecastFactory': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'matchedDFUCache' is expected to be of type 'com.github.benmanes.caffeine.cache.Cache' but was actually of type 'com.github.benmanes.caffeine.cache.Caffeine'

这是源文件：https://github.com/ben-manes/caffeine/blob/master/caffeine/src/main/java/com/github/benmanes/caffeine/cache/Caffeine.java

Answer 1

        <bean id="caffeineBuilder" class="com.github.benmanes.caffeine.cache.Caffeine" factory-method="newBuilder">
        </bean>
        <bean id="matchedDFUCache" factory-bean="caffeineBuilder" factory-method="build">
        </bean>