I have a DAO object with a method of the following type. I have injected the DAO into service layer and I'm able to get cached results from this DAO method call. But when multiple threads invoke this method (on a proxy that wraps the DAO singleton) some of those threads still going to fetch the data from my database i.e., the fetchDataFromDb() method call is still executed. Is there a way to get around this? Is this a Spring caching bug?
@Override
@Cacheable(value = "CacheName")
public Map<String, DomainObject> fetchDataFromDb() {
....
}
Following XML configuration of my Spring application context file. This is a web application. I simulated the multiple threads using JMeter.
<cache:annotation-driven />
<!-- generic cache manager -->
<bean id="cacheManager" class="org.springframework.cache.support.SimpleCacheManager">
<property name="caches">
<set>
<bean class="org.springframework.cache.concurrent.ConcurrentMapCacheFactoryBean" p:name="CacheName" />
</set>
</property>
</bean>