IBATIS执行存储过程

<parameterMap id="swapParameters" >    <parameter property="email1" jdbcType="VARCHAR" javaType="java.lang.String" mode="INOUT"/>    <parameter property="email2" jdbcType="VARCHAR" javaType="java.lang.String" </parameterMap>    <procedure id="swapEmailAddresses" parameterMap="swapParameters" >    {call swap_email_address (?, ?)}</procedure>