I was trying to use the removalListener functionality of Caffeine Cache, but it does not work as excepted. Below is the code tried:
public class CaffeineCacheConfig {
@Autowired EmployeeRepository employeeRepository;
@Bean
public CacheManager cacheManager() {
CaffeineCacheManager cacheManager = new CaffeineCacheManager("customer");
cacheManager.setCaffeine(caffeineCacheBuilder());
return cacheManager;
}
Caffeine<Object, Object> caffeineCacheBuilder() {
System.out.println("loading data");
return Caffeine.newBuilder()
.initialCapacity(100)
.maximumSize(500)
.expireAfterWrite(2, TimeUnit.MINUTES)
.removalListener((key, value, cause) -> {
System.out.println("key: "+ key);
System.out.println("value: "+value);
System.out.println("cause: "+cause);
if (cause.wasEvicted()) employeeRepository.save(new Employee("Test Employee"));
});
}
}
As per expectation, the key, value and cause should be printed in console and also data should be inserted in DB after 2 minutes has passed for every entry in the cache.
Please help me understand if my understanding is correct or this is some issue.
