dao层的查询、删除语句

public abstract class BaseHibernateDao<E, PK extends Serializable> extends HibernateDaoSupport implements
  EntityDao<E, PK> {

 public List<DocumentUser> getByDocTransferId(Long id) {  

//1. 

String hql = "from DocumentUser where doctransferId=" + id;  

 return this.getHibernateTemplate().find(hql);

 }

public void deleteUserByDoctransferId(Long id) {

// 2.   List<DocumentUser> ls = getByDocTransferId(id);

//  for (DocumentUser du : ls) { //   delete(du); //  }      

---------------------------------------------------------------------------------------------

//一步完成删除操作

getSession().createQuery("delete DocumentUser where doctransferId="+ id).executeUpdate();   

 }