Question

I have a query mapper like the following:

<select id="searchSomething" parameterType="SomeType" resultType="SomeOtherType">
  select xxxxx
  from T_XXXX
  where 1=1
  <if test="propertyName == 'userName'">
    and USER_NAME = #{propertyValue}
  </if>
  <if test="propertyName == 'address'">
    and ADDRESS = #{propertyValue}
  </if>
  <if test="propertyName == 'taskDate'">
    and TASK_DATE = #{propertyValue}
  </if>
  <if test="propertyName == 'phone1'">
    and PHONE_1 = #{propertyValue}
  </if>
  <if test="propertyName == 'phone2'">
    and PHONE_2 = #{propertyValue}
  </if>
  ...
</select>

There are so many properties. How can i simply map the property name to column name, like the following:

<select id="searchSomething" parameterType="SomeType" resultType="SomeOtherType">
  select xxxxx
  from T_XXXX
  where 1=1
    and 
    <propertyToColumn property="propertyName" />
      = #{propertyValue}
</select>

Is there something like “propertyToColumn” in MyBatis?

I found “insertColumnName” in iBatis, is it removed from MyBatis?

The parameterType is a java class like:

public class SomeType{
  private String propertyName;
  private String propertyValue;
  ... getters and setters
}

Answer 1

I think that it could be better if you do the “parameter-column” conversion in your code, and pass the result column as parameter. In that case you could do something like this:

<select id="searchSomething" parameterType="SomeType" resultType="SomeOtherType">
  select xxxxx
  from T_XXXX
  where 1=1
    and 
   ${propertyColumn} = #{propertyValue}
</select>

Of course, you will need to add the propertyColumn to your VO.