RE: queryForMap returning zero results

Wed, 10 May 2006 02:34:09 -0700

Are the productcategory id’s unique? queryForMap() will use that as a key, so if all id’s are the same, map.size() will be 1.

 

From: Firas A. [mailto:[EMAIL PROTECTED]
Sent: woensdag 10 mei 2006 8:25
To: user-java@ibatis.apache.org
Subject: RE: queryForMap returning zero results

 

Thanks Niels for your answer.

 

I'm affraid I haven't been completely correct in my description of the issue. Sorry about that. queryForMap does actually return 1 (one) value, the last row in the resultset. About accessor methods: I do have getProductCategoryId()  and setProductCategoryId(String productCategoryId) in ProductCategory class.

 

But why queryForMap returns only the last row from the resultset?

 

Thanks again!

 

</Firas>

 

 

From: Niels Beekman [mailto:[EMAIL PROTECTED]
Sent: den 9 maj 2006 20:28
To: user-java@ibatis.apache.org
Subject: RE: queryForMap returning zero results

That’s very strange, since queryForMap() uses queryForList() internally. Is there a proper getter in class ‘com.mycompany.ecommerce.ProductCategory’ for the ‘productCategoryId’ property?

 

Niels

 

From: Firas A. [mailto:[EMAIL PROTECTED]
Sent: dinsdag 9 mei 2006 20:05
To: user-java@ibatis.apache.org
Subject: queryForMap returning zero results

 

Hello everybody!

I'm getting zero results when using queryForMap. Whith queryForList I get the correct results.

----- SQLMap -----
<resultMap id="listOfCategories" class="com.mycompany.ecommerce.ProductCategory">
        <result column="product_category_id" property="productCategoryId" jdbcType="VARCHAR" />
        <result column="parent_category_id" property="parentCategoryId" jdbcType="VARCHAR" />
        <result column="category_name" property="categoryName" jdbcType="VARCHAR" />
</resultMap>

<select id="listAvailableCategories" resultMap="listOfCategories">
        SELECT
              product_category_id,
              parent_category_id,
              category_name
        FROM  product_category
</select>

----- Java -----
public Map listAvailableCategories() throws SQLException {
        Map prodCatRel = sqlMapClient.queryForMap("listAvailableCategories", null, "productCategoryId");
        return prodCatRel;
}

In the logging output I can clearly see that there are several rows in the resultset, but prodCatRel.size()==0. 

 

Anybody have an idea? 

 

Thanks for your time! 

 

</Firas>

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