[ http://issues.apache.org/jira/browse/IBATISNET-129?page=all ]
Gilles Bayon closed IBATISNET-129:
----------------------------------
Fix Version: DataMapper 1.3
Resolution: Invalid
Assign To: Gilles Bayon
Already fixed in SVN
> iBatis cache can't handle null values
> -------------------------------------
>
> Key: IBATISNET-129
> URL: http://issues.apache.org/jira/browse/IBATISNET-129
> Project: iBatis for .NET
> Type: Bug
> Components: DataMapper
> Versions: DataMapper 1.2.1
> Environment: .NET 2.0
> Reporter: Phil Kulak
> Assignee: Gilles Bayon
> Fix For: DataMapper 1.3
>
> Here's the relevent source from MappedStatement.cs:
> obj = _statement.CacheModel[key];
> if (obj == null)
> {
> obj = RunQueryForObject(request, session, parameterObject,
> resultObject);
> _statement.CacheModel[key] = obj;
> }
> Notice that this code assumes that a null value means that the key doesn't
> exist when the key could exist and just be mapped to null, as is the case for
> a query that returns no result. This causes an "Item has already been added."
> exception.
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