Question

How would you express the following Criteria query in HQL?

var idArray = new int[] { 1, 2, 3, 4, 5 };  Session.CreateCriteria(typeof(Foo))     .Add(Expression.In('Id', idArray)     .List<Foo>(); 

I am aware of that there is an ‘in’ keyword in HQL, but as I understand it that keyword is for use with subqueries rather than something like ‘… where Id in (1, 2, 3, 4, 5)’ or such. If that is not the case, I will gladly accept corrections.

Thanks /Erik

Answer 1

Try this:

var idArray = new int[] { 1, 2, 3, 4, 5 }; var foos = Session     .CreateQuery('from Foo f where f.Id in (:ids)')     .SetParameterList('ids', idArray)     .List<Foo>();