#How to avoid editing data in a cache when using LoadingCache?

1 messages · Page 1 of 1 (latest)

hazy crow
#

I'm currently developing a plugin for profiles. I added caching via LoadingCache, but when I get a profile from the cache, it returns a reference, so if I edit something in the received profile, it will be edited in the cache. How to avoid it? Create a copy constructor or something similar?

    private final LoadingCache<String, Optional<Profile>> cache = CacheBuilder.newBuilder()
            .expireAfterWrite(5, TimeUnit.MINUTES)
            .build(CacheLoader.from(this::getProfileFromDatabase));

    public Profile findByPlayerName(String playerName) {
        try {
            return cache.get(playerName.toLowerCase())
                    .orElse(null);
        } catch (ExecutionException e) {
            throw new RuntimeException(e);
        }
    }

    // tests
    Profile profile = profileManager.findByPlayerName("omashune"); // age = 18
    profile.setAge(19); // age = 19

    profileManager.findByPlayerName("omashune"); // age = 19
vale cloakBOT
#

<@&987246652869971988> please have a look, thanks.

vale cloakBOT
#

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