How to get java enum ordinal value in MyBatis SELECT query - mybatis

Question

How to get java enum ordinal value directly in the following SELECT query?
Enum Status
package com.enum;
public enum Status {
A, B, C, D, E;
}
Class Aa
package com.prj;
import com.enum.Status;
public class Aa {
private Long id;
private String name;
private Status status; // store enum ordinal in table aa
}
This following query is not working.
<select id="getAaValidIds" resultType="Long">
SELECT
aa.id
FROM
aa aa
WHERE
aa.status = #com.enum.Status$A.ordinal()
OR aa.status = #com.enum.Status$B.ordinal()
</select>

Answer 1

You can use OGNL expression with ${}.
WHERE
aa.status = ${#com.enum.Status#A.ordinal()}
OR aa.status = ${#com.enum.Status#B.ordinal()}
The below is the original answer.
It incorrectly assumed that the enum is passed as a parameter.
There is a built-in type handler for that.
You can specify javaType and typeHandler for each parameter. e.g.
WHERE
aa.status = #{status,javaType=com.enum.Status,typeHandler=org.apache.ibatis.type.EnumOrdinalTypeHandler}
OR aa.status = #{status,javaType=com.enum.Status,typeHandler=org.apache.ibatis.type.EnumOrdinalTypeHandler}
Or, if you always use this type handler for Status, it is better to register it globally in the config.
<typeHandlers>
<typeHandler
javaType="com.enum.Status"
handler="org.apache.ibatis.type.EnumOrdinalTypeHandler" />
</typeHandlers>
Then you can just write...
WHERE
aa.status = #{status}
OR aa.status = #{status}