Any way to receive notifications when the key's are removed because of TTL

[fogfish]

Any way to receive notifications when the key's are removed because of TTL

[fogfish]

Hello,

Cache makes eviction of segment (there are no eviction on key-level). You can be notified when segment is removed using heir property:
{heir, atom() | pid()} - heir of evicted cache segments

cache:start_link(my_cache, [{n, 10}, {ttl, 60}, {heir, self()}]).

heir property triggers ets:give_away(...) feature, you process will get {'ETS-TRANSFER',Tab,FromPid,GiftData} message. You can use ETS table reference to handle eviction according to your business logic.
https://github.com/fogfish/cache/blob/master/src/cache_heap.erl#L138
http://erldocs.com/current/stdlib/ets.html?i=0&search=ets:gi#give_away/3

Please be aware that your process becomes an owner of ETS segment, your process needs to drop it.

Should it resolve your use-case?

[silviucpp]

Hello,

Thanks a lot. You can add this info in the documentation :) might be useful for others too.

Silviu