/**
 * MyEntity
 *
 * @ORMTable(name="my_db_name.my_entity")
 * @ORMEntity
 */
class MyEntity
{

...

}

parameters:
    database_host: 127.0.0.1
    database_driver: pdo_mysql
    database_port: 3306
    database_name: my_db_name
    database_user: root
    database_password: null

/**
 * MyEntity
 *
 * @ORMTable(name="%database_name%.my_entity")
 * @ORMEntity
 */
class MyEntity
{

...

}