typeHandler for <parameterMap> and <resultMap> are handled differently
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Key: IBATIS-130
URL: http://issues.apache.org/jira/browse/IBATIS-130
Project: iBatis for Java
Type: Bug
Components: SQL Maps
Versions: 2.1.0
Environment: any (Linux/Spring/Java 1.5)
Reporter: Bubba Puryear
The SqlMapParser handles 'typeHandler' attributes for parameterMap's parameters
and resultMap's results differently. In particular, a typeHandler must be a
TypeHandlerCallback instance for parameterMap's parameter but can be either a
TypeHandler or TypeHandlerCallback instance for resultMap's result.
This has implications with Spring integration. Spring provides a
ClobStringTypeHandler (org.springframework.orm.ibatis.support) that works great
for reading/writing CLOBs, but you can't specify it in a parameterMap since it
isn't a TypeHandlerCallback. (this is actually true of all the CTH's that
Spring provides, I just happen to want to use ClobStringTypeHandler)
The code in SqlMapParser treats these two cases differently. I have a patch
(which I'll attach) that duplicates the result parsing code in the parameter
parsing code. (I know, duplication is evil and all -- of course, that's kinda
the source of the this problem in the first place)
Thanks,
Bubba
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