Dear Members

In the section
5.4.5 Managing State in an Aggregator: MessageGroupStore

Appear the interface declaration of MessageGroupStore with two only
methods

Code:
public interface MessageGroupStore {
   void registerMessageGroupExpiryCallback(MessageGroupCallback callback);
   int expireMessageGroups(long timeout);
}
But in its API for this interface exists more

org.springframework.integration.store
Interface MessageGroupStore


Best Regards