Question

Does Spring Cache abstraction support multi-value queries?

Instead of:

@Cacheable(“books”)
public Book findBook(ISBN isbn) {…}

Imagine a query that goes like this:

@Cacheable(“books”)
public List< Book > findBook(List< ISBN > isbns) {…}

Is this supported? Will it individually cache each book returned in the collection?

Thanks!

Answer 1

Spring Cache stores whole result under single cache key, so it is not possible to store individually each object returned in the collection. In case of caching result of a JPA Query you may use query cache. In other cases if memcached is an option for you, you can try Simple Spring Memcached and ReadThroughMultiCache annotation. It will store each element of the collection individually under dedicated cache key.