How to use in memory and redis cache in the same project?

Question

Have two classes, both annotating with @Cacheable (org.springframework.cache.annotation.Cacheable), either methods or class. I think it doesn't matter for this question.

Example:

@Cacheable(value = STATE_CACHE_NAME, key = "#root.methodName + '-' + #country?.id ?: \"null\" + '-' + #stateName ?: \"null\"")
public Long getStateId(CountryEntity country, String stateName) {...}

In some classes I'd like to use the simple in-memory cache and others the Redis cache. Both are configured in Spring boot auto-configure CacheConfigurations. How do I state this intent and use the different configurations?

David Gomes · Accepted Answer · 2023-12-17 10:20:38Z

2

@Cacheable takes a parameter "cacheManager", which lets you specify which bean of CacheManager it refers to.

So you'd add it with the name of the bean of your wanted CacheManager.

@Cacheable(cacheManager = "inMemoryCache", value = STATE_CACHE_NAME, key = "#root.methodName + '-' + #country?.id ?: \"null\" + '-' + #stateName ?: \"null\"")
public Long getStateId(CountryEntity country, String

You can either use the name of the bean method, or provide the name via the "name" parameter of @Bean.

E.g.

@Bean(name = "inMemoryCache")
CacheManager cacheManager() {
}

answered Dec 17, 2023 at 10:20

David Gomes

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3 Comments

AlikElzin-kilaka Over a year ago

Thanks David. This solution requires me to create a specific instance of an in-memory cache in the method implementation. I'd like to use an autowired version of the in-memory cache, like I do with Redis.

David Gomes Over a year ago

@AlikElzin-kilaka I'm not sure I'm getting what you mean, can you edit your question with more details?

AlikElzin-kilaka Over a year ago

@david-gomez, updated the question and upvoted as it's still a valueble answer.

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