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public void setProductList(Collection<Product> productList) {
if(productList!=null && productList.isEmpty())
productList= null;
this.productList= productList;
}
<sqlMap namespace="catelog">
<resultMap id="catelogResult" class="Catelog">
<result property="id" column="id" />
<result property="name" column="name" />
<result property="catelogAttributeList" column="id"
select="catelogAttribute.findCatelogAttributeByCatelogId" />
</resultMap>
<select id="findCatelogById" parameterClass="int"
resultMap="catelogResult">
select id as id, name as name from CATELOG where id=#id#
</select>
</sqlMap>
----------------------------------------------------------------------
<sqlMap namespace="catelogAttribute">
<resultMap id="catelogAttributeResult" class="CatelogAttribute">
<result property="id" column="id" />
<result property="catId" column="catId" />
<result property="attributeId" column="attributeId" />
</resultMap>
<select id="findCatelogAttributeByCatelogId"
parameterClass="int" resultMap="catelogAttributeResult">
select id as id, catId as catId, attributeId as attributeId from
CATELOGATTRIBUTE where catId = #catId#
</select>
</sqlMap>