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?
