package crmdna.mail2; import com.googlecode.objectify.annotation.Cache; import com.googlecode.objectify.annotation.Entity; import com.googlecode.objectify.annotation.Id; import com.googlecode.objectify.annotation.Index; import java.util.HashSet; import java.util.Set; @Entity @Cache public class MktMailEntity { @Id long mktMailId; @Index String name; String displayName; @Index long programId; @Index Set<Long> mailMessageIds = new HashSet<>(); }