[IBATIS-714] exception when namespace attribute of a mapper corresponds to a real class name

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0 Beta 6
• Fix Version/s: 3.0 Beta 7
• Component/s: Core
• Environment: WinXP/Java 1.6
• Assignee: Clinton Begin
• Reporter: Ostap Bender
• Created: 09/Dec/09 20:45
• Updated: 17/Dec/09 03:28
• Resolved: 17/Dec/09 03:28

Description

If you have a following class:

—
package com.xxx.ibatis.test.dao;

public class T1DAO {
...
}
—
And a mapper:
<mapper namespace="com.xxx.ibatis.test.dao.T1DAO">
...
<!-- Select with no parameters using the result map for Account class. -->
<select id="selectAllT1" resultMap="T1Result">
select * from t1
</select>
</mapper>
—
Then when trying to instantiate an SqlSessionFactory execution fails with the following exception:

Caused by: org.apache.ibatis.binding.BindingException: Only interfaces can be configured by the MapperFactory. Type class com.xxx.ibatis.test.dao.T1DAO is not an interface.
at org.apache.ibatis.binding.MapperRegistry.addMapper(MapperRegistry.java:35)
at org.apache.ibatis.session.Configuration.addMapper(Configuration.java:320)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.bindMapperForNamespace(XMLMapperBuilder.java:234)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:40)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:226)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:66)

The namespace should not force you to use mapper interfaces in my opinion.
If namespace points to a concrete class the mapper should ignore it not trying to use mapper interfaces logic and treat it, well, as a regular namespace string qualifier.
What is I already have a bunch of DAO classes and just want to scope them appropriately inside correspondent maps?