iBtais 多重嵌套循环

iBatis支持集合循环， 但是如何做到双重循环， 请见下例子

例子描述：

需要去三张结构相同的表中获取信息, 需要将信息拼合去重后返回

入参数据类型： Map<String,Object>,   regions  = List<OrderRegionNum>

class OrderRegionNums{
String regionSchema
String regionCode
List<Integer> orderNums
}

 

注意的是在标签中的property属性中使用时：不需要加 $或者#  直接regions[].orderNums
<select ></select>

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<isNotEmpty prepend="and" property="marketShopAuthFlatAreaDtos">
    <iterate property="marketShopAuthFlatAreaDtos" conjunction="or">
        project_id in
        <iterate conjunction=',' property="marketShopAuthFlatAreaDtos[].projectIds" open="(" close=")">
            #marketShopAuthFlatAreaDtos[].projectIds[]#</iterate>
        AND
        (
        1!=1
        <isNotEmpty prepend="or" property="marketShopAuthFlatAreaDtos[].provinceNodes" >
            shop_address_province in
            <iterate conjunction=',' property="marketShopAuthFlatAreaDtos[].provinceNodes" open="(" close=")">
                #marketShopAuthFlatAreaDtos[].provinceNodes[].nodeCode#</iterate>

        </isNotEmpty>
        <isNotEmpty prepend="or" property="marketShopAuthFlatAreaDtos[].cityNodes">
            shop_address_city in
            <iterate conjunction=',' property="marketShopAuthFlatAreaDtos[].cityNodes" open="(" close=")">
                #marketShopAuthFlatAreaDtos[].cityNodes[].nodeCode#</iterate>

        </isNotEmpty>

        <isNotEmpty prepend="or" property="marketShopAuthFlatAreaDtos[].countyNodes">

            shop_address_country in
            <iterate conjunction=',' property="marketShopAuthFlatAreaDtos[].countyNodes" open="(" close=")">
                #marketShopAuthFlatAreaDtos[].countyNodes[].nodeCode#</iterate>

        </isNotEmpty>
        <isNotEmpty prepend="or" property="marketShopAuthFlatAreaDtos[].townNodes">

            shop_address_street in
            <iterate conjunction=',' property="marketShopAuthFlatAreaDtos[].townNodes" open="(" close=")">
                #marketShopAuthFlatAreaDtos[].townNodes[].nodeCode#</iterate>

        </isNotEmpty>
        )
    </iterate>

</isNotEmpty>

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<sql ></sql>