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iBATIS2.3.x是否可以延迟加载java.lang.Integer?_Java_Sql_Orm_Lazy Loading_Ibatis - Fatal编程技术网

iBATIS2.3.x是否可以延迟加载java.lang.Integer?

iBATIS2.3.x是否可以延迟加载java.lang.Integer?,java,sql,orm,lazy-loading,ibatis,Java,Sql,Orm,Lazy Loading,Ibatis,正在尝试延迟加载java.land.Integer。延迟加载属性: <result property="foo.cnt" column="id" select="getCnt"/> Sql语句如下所示: <sql id="sql-getCnt"> SELECT count(*) as cnt FROM bar b INNER JOIN bar2 b2 on b.id = b2.id WHERE bar.id=#id# AND b2.wo

正在尝试延迟加载java.land.Integer。延迟加载属性:

<result property="foo.cnt" column="id" select="getCnt"/>
Sql语句如下所示:

<sql id="sql-getCnt">
    SELECT count(*) as cnt
    FROM  bar b INNER JOIN bar2 b2 on b.id = b2.id
    WHERE bar.id=#id#
    AND b2.workds IS NULL
</sql>
<select id="getCnt" parameterClass="int" resultClass="java.lang.Integer">
    <include refid="sql-getCnt"/>
</select>
选择这样做的语句:

<sql id="sql-getCnt">
    SELECT count(*) as cnt
    FROM  bar b INNER JOIN bar2 b2 on b.id = b2.id
    WHERE bar.id=#id#
    AND b2.workds IS NULL
</sql>
<select id="getCnt" parameterClass="int" resultClass="java.lang.Integer">
    <include refid="sql-getCnt"/>
</select>
设置:

<settings 
    enhancementEnabled="true"
    errorTracingEnabled="true"
    lazyLoadingEnabled="true"
    useStatementNamespaces="true"
/>
我认为延迟加载是有效的。但这就是我在日志中看到的:


整数的延迟加载有多慢?完全可以吗?

原因是java.lang.Integer类是final类,因此cglib无法为其创建代理对象。答案是明确而简单的