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Posted to user-java@ibatis.apache.org by I L <is...@hotmail.com> on 2009/08/23 01:47:07 UTC
IBatis 3 backward compatibility
Hi,
I found two scenario's in which used to work in ibatis 2 but no longer works in ibatis 3.
Scenario 1:
In ibatis 2, you could specify the table name and column name:
e.g.
<result column="user.version" jdbcType="INTEGER" property="version" />
In this case the table is "user" and the column is "version"
With Ibatis 3, if I specify the full column name, "user.version", pojo binding doesn't occur. I must omit the "user." part to just
<result column="version" jdbcType="INTEGER" property="version" />
The ability to have the fully qualified column name is important when you need to distinguish them when both columns are selected from the database.
e.g.
<result column="user.version" jdbcType="INTEGER" property="version" />
<result column="place.version" jdbcType="INTEGER" property="version" />
Of course there I could change the column names so they are unique across all tables or use aliasing when necessary. But I thought the ibatis 2 approach was cleaner
Scenario 2:
In ibatis 2, I used to be able to access a pojo property that is complex:
e.g.
<result column="password" property="password.encrypted" jdbcType="VARCHAR" />
So I had a Field of type Password which had and encrypted member. I only want to persist "encrypted"
class Pojo{
private Password password;
}
class Password{
private String encrypted; //the encrypted string
public void getDecryptedString(){...}
}
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