Spring CaffeineCacheManager中添加了多个Caffeine LoadingCaches [英] Multiple Caffeine LoadingCaches added to Spring CaffeineCacheManager

问题描述

我想在Spring CacheManager中添加几个不同的LoadingCache，但是我不知道使用CaffeineCacheManager怎么可能.看来只有一个加载器才可以刷新内容，但是我需要为每个缓存使用单独的加载器.是否可以将多个加载缓存添加到Spring缓存管理器?如果是这样，那怎么办?

I'm looking to add several distinct LoadingCache's to a Spring CacheManager, however I don't see how this is possible using CaffeineCacheManager. It appears that only a single loader is possible for refreshing content, however I need separate loaders for each cache. Is it possible to add multiple loading caches to a Spring cache manager? If so, then how?

CaffeineCacheManager cacheManage = new CaffeineCacheManager();

LoadingCache<String, Optional<Edition>> loadingCache1 = 
            Caffeine.newBuilder()
            .maximumSize(150)
            .refreshAfterWrite(5, TimeUnit.MINUTES)
            .build(test -> this.testRepo.find(test));

LoadingCache<String, Optional<Edition>> loadingCache2 = 
            Caffeine.newBuilder()
            .maximumSize(150)
            .refreshAfterWrite(5, TimeUnit.MINUTES)
            .build(test2 -> this.testRepo.find2(test2));

// How do I add to cache manager, and specify a name?

推荐答案

是可以的.由于您需要微调每个缓存，因此您可能最好自己定义它们.回到您的示例，下一步将是:

Yes it is possible. Since you need to fine tune every cache, you are probably better at defining them yourself. Back to your example, the next step would be:

SimpleCacheManager cacheManager = new SimpleCacheManager();
cacheManager.setCaches(Arrays.asList(
    new CaffeineCache("first", loadingCache1),
    new CaffeineCache("second", loadingCache2)));

然后您可以照常使用它，例如

And then you can use that as usual, e.g.

@Cacheable("first")
public Foo load(String id) { ... }

如果您使用的是Spring Boot，则可以将单个缓存公开为bean(因此是org.springframework.cache.Cache实现)，我们将对其进行检测并为您自动创建SimpleCacheManager.

If you are using Spring Boot, you can just expose the individual cache as beans (so org.springframework.cache.Cache implementations) and we'll detect them and create a SimpleCacheManager automatically for you.

请注意，此策略允许您将缓存抽象用于不同的实现. first可能是咖啡因缓存，而second可能是来自另一个提供程序的缓存.

Note that this strategy allows you to use the cache abstraction with different implementations. first could be a caffeine cache and second a cache from another provider.

这篇关于Spring CaffeineCacheManager中添加了多个Caffeine LoadingCaches的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！