If there is a bean named database, which @In entity manager:

@Name("database")
@AutoCreate
public class Database {

 @In
 private EntityManager entityManager;

 public Table createTable() {
 return new Table(this);
 }

 public User getUser(Long id) {
 return this.entityManager.find(User.class, id);
 }
}

And a table (like DAO, just work with User table):

public class Table {

 private Database database;

 public Table(Database database) {
 this.database = database;
 }

 public User getUser() {
 return this.database.getUser(0L);
 }
}

If create table directly in bean, it will be ok, but if create table from Database, the entityManager in Database will be null. The following is test code:

public class Test() {

 @In
 private Database database;

 public void execute() {
 // The following code execute successfully
 Table t1 = new Table(this.database);
 User user1 = t1.getUser();
 System.out.println(user1.toString());

 // The following code will cause error
 // The entitymanager of database is null
 Table t2 = this.database.createTable();
 User user2 = t2.getUser();
 }
}

Is there limited that we can not create a child bean from parent bean if child bean reference to parent bean?