@hibernate.class table="lams_learning_group" @hibernate.id generator-class="assigned" type="java.lang.Long" column="group_id" @hibernate.set role="users" table="lams_user-group" lazy="true" @hibernate.collection-key column="group_id" @hibernate.collection-many-to-many class="com.lamsinternational.lams.usermanagement.User" column="user_id"