[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4966) Entity Manager bug with ParameterExpressionImpl
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http://opensource.atlassian.com/projects/hibernate/browse/HHH-4966?page=c...
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jean-claude cote commented on HHH-4966:
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the problem is still in 3.5.1 final. I will attach my patch and a testcase. The problem is
easy to reproduce just create a parameter and use it twice in your criteria. You'll
see it will generate two bind variables :generatedParam0 and :generatedParam1
Entity Manager bug with ParameterExpressionImpl
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Key: HHH-4966
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4966
Project: Hibernate Core
Issue Type: Bug
Components: entity-manager
Affects Versions: 3.5.0-CR-1
Reporter: jean-claude cote
Emmanuel
There seems to be a bug with the ParameterExpressionImpl class when rendering.
If you create a criteria query using a ParameterExpression instance in
multiple places in your query the rendering of this query will produce
multiple pram0, param1, param2 for the same ParameterExpression
instance.
We fixed this bug by augmenting the RenderingContext interface with
generateParameterName(Expression<?> exp). With this information the
rendering context can give back the same jpaqlParameterName for the
same ParameterExpression instance. All it has to do is do a lookup in
its explicitParamtermapping map.
Thanks
Jean-Claude
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