DetachedCriteria

Anyone know how to convert an ICriteria into a DetachedCriteria. I need to use an existing ICriteria as part of a subquery using: .Add(Subqueries.PropertyIn("Name", myDetachedCriteriaSubquery)) Is there any way to convert an ICriteria to a DetachedCriteria. I will accept 'no' with a credible reference. Following on from mattk's answer, you can inherit DetachedCriteria to access its constructors: public class ConvertedDetachedCriteria : DetachedCriteria { public ConvertedDetachedCriteria(ICriteria criteria) : base((CriteriaImpl) criteria, criteria) { var impl = (CriteriaImpl) criteria; impl

I'm trying to express a SQL query using NHibernate's Criteria API, and I'm running into difficulty because I'm thinking in a database-centric way while NHibernate is object-centric. SQL (works great): select outerT.id, outerT.col1, outerT.col2, outerT.col3 from tbl outerT inner join (select max(innerT.id) from tbl innerT group by innerT.col1) grpT on outerT.id = grpT.id Essentially, this is a self-join of a table against a subset of itself. I suppose I could try turning the self-join into a restriction: select outerT.id, outerT.col1, outerT.col2, outerT.col3 from tbl outerT where outerT.id in

In my model I have an abstract "User" class, and multiple subclasses such as Applicant, HiringManager, and Interviewer. They are in a single table, and I have a single DAO to manage them all. User: @Entity @Table(name="User") @Inheritance(strategy=InheritanceType.SINGLE_TABLE) @DiscriminatorColumn( name="role", discriminatorType=DiscriminatorType.STRING ) public abstract class User extends BaseObject implements Identifiable<Long> ... HiringManager (for example): @Entity @DiscriminatorValue("HIRING_MANAGER") public class HiringManager extends User ... Now if I wanted to, say, get all the hiring

I'm running into an issue with adding JOIN's to a subquery using DetachedCriteria. The code looks roughly like this: Criteria criteria = createCacheableCriteria(ProductLine.class, "productLine"); criteria.add(Expression.eq("productLine.active", "Y")); DetachedCriteria subCriteria = DetachedCriteria.forClass(Model.class, "model"); subCriteria.setProjection(Projections.rowCount()); subCriteria.createAlias("model.modelLanguages", "modelLang"); subCriteria.createAlias("modelLang.language", "lang"); criteria.add(Expression.eq("lang.langCode", "EN")); subCriteria.add(Restrictions.eqProperty("model

I have a table, "Quote", mapped in hibernate that has a composite key of an integer id and a date, and several additional columns. I'd like to write a criteria query that uses a DetachedCriteria to get the row for each id with the greatest date. In sql, I might write a query like SELECT * FROM Quote q1 INNER JOIN (SELECT id, max(date) as maxdate FROM Quote GROUP BY id, date) q2 ON q1.id = q2.id AND q1.date = q2.maxdate In hibernate, I think can create a DetachedCriteria for the "group by" subquery like this (where Quote is the class mapping the table, and "Qid" is a composite id class for the

I'm trying to make a select with DetachedCriteria, I want to add several conditions seperated by OR at runtime. If I use: Restrictions.Or( cond1, Restrictions.Or(cond2, Restrictions.Or(cond3, cond4)) ) I get the result I want. But if I use a Disjunction like so: var disjunction = Restrictions.Disjunction(); disjunction.Add(cond1); disjunction.Add(cond2); disjunction.Add(cond3); disjunction.Add(cond4); And I have entities that cond1 and cond2 are true for them, at the results I get them twice (the same exact entity is returned twice in the list result). I do not wish to use QueryOver because I