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From Sebastian Niezgoda <sniezg...@gestalt-llc.com>
Subject Enums and iBatis - still not clear
Date Tue, 12 Jun 2007 12:38:42 GMT

I've read through archives and the wiki but I'm still not clear on how
exactly to handle enums using iBatis.

I use ant's xjc task to create objects from a database schema. The code
tables become Java Enum objects such as:

public enum MyEnum { 


   public String value() {
      return name();

   public static MyEnum fromValue(String v) {
      return valueOf(v);

I have a POJO, MyObject, with the following parameters:

private String ID;
private MyEnum enum;

I do a simple query and in the DAO SQL I create a result map as follows:

<resultMap id="pojoMap" class="MyObject"> 

   <result property="ID" column="ID" />
   <result property="enum" resultMap="MyObject.enumMap" />

<resultMap id="enumMap" class="MyEnum">
   <result property="?????" value="enum" />

My question is - how do I map the value I retrieve from db (called enum)
to the MyEnum class?

No matter what I replace the ????? with it doesn't work and it fails
with the following error:

Cause: com.ibatis.common.beans.ProbeException: There is no WRITEABLE
property named '?????'; in class 'MyEnum'

I could create a bunch of handlers but there are many of them and since
the objects are generated from the schema they can always change.  Is
there an easy way to do this?



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