ibatis에서 insert했을 경우 리턴값 처리

<insert id="insert" parameterClass="customer">
  <selectKey resultClass="int" keyProperty="id">
    select someSequence.NEXTVAL as "id" from dual
  </selectKey>
  insert into Customer (id, name)
  values (#id#, #name#)
</insert>

<insert id="insert2" parameterClass="Entity" parameterMap="insert-paramMap">
   <selectKey resultClass="int" keyProperty="pkey"> SELECT seq.nextval FROM DUAL </selectKey>
   INSERT INTO EntityTable (PKEY, DATA) VALUES (?, ?)
</insert>

출처 : http://deadlock.tistory.com/172