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From "Clough, Samuel \(USPC.PRG.Atlanta\)" <Samuel_Clo...@princetonrg.com>
Subject RE: GroupBy & Constructors
Date Tue, 15 May 2007 19:50:03 GMT
I don't have any ideas, but if you're new to iBatis, I assume you've
checked the inner exception.  iBatis often puts tidbits in there that
are helpful if it's a configuration issue (which it doesn't look like at
first glance). 

-----Original Message-----
From: Chick, Brian [mailto:Brian.Chick@qg.com] 
Sent: Tuesday, May 15, 2007 3:42 PM
To: user-cs@ibatis.apache.org
Subject: GroupBy & Constructors

 I'm trying to use the groupBy attribute in conjunction with a
constructor.  When using the groupBy attribute with the default no-args
constructor, it works great.  Having issues using it when specifing a
constructor.  My resultmap that looks like this:

<resultMap id="ResultId" class="ResultClass" groupBy="TheUniqueId">
        <argument argumentName="inUniqueId" column="ID"
        <argument argumentName="inValOne" column="VAL_ONE"
        <argument argumentName="inValTwo" column="VAL_TWO"
    <result property="TheUniqueId" column ="ID" dbType ="Integer"/>
    <result property ="ChildObject"

Throws the following NullReferenceException:

System.NullReferenceException was unhandled by user code
  Message="Object reference not set to an instance of an object."
ap resultMap, RequestScope request, IDataReader reader)
cess(RequestScope request, IDataReader& reader, Object resultObject)
(RequestScope request, IDataReader& reader, Object resultObject)
(RequestScope request, ISqlMapSession session, Object parameterObject,
IList`1 resultObject, RowDelegate`1 rowDelegate)
t[T](ISqlMapSession session, Object parameterObject)
       at IBatisNet.DataMapper.SqlMapper.QueryForList[T](String
statementName, Object parameterObject)
	 . . .

Any ideas would be appreciated.  Thanks. 

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