title: About iBatis mapped parameters
body: <p>when i have a query for ibatis like this </p>
  
  <pre><code>&lt;insert id="createSomething" parameterClass="com.abc.something.CreateSomething"&gt;
  INSERT INTO ABC (
                  MASTER_ID
                  ) 
           VALUES ( 
                   #masterId:NUMERIC:-1#
                  )
   &lt;/insert&gt;
  </code></pre>
  
  <p>with pojo CreateSomething having int masterId = -1 with getter and setter.</p>
  
  <p>what is the meaning of <code>#masterId:NUMERIC:-1#</code>, here i can understand masterId is of NUMERIC type but what is the associated -1 use here, and what will be the equivalent Mybatis query be.</p>