Assert the class for a Criteria is mapped ----------------------------------------- Key: HHH-1665 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1665 Project: Hibernate3 Issue Type: Improvement Components: query-criteria Affects Versions: 3.1.3 Reporter: Daniel Campagnoli Priority: Minor Original Estimate: 5 minutes Remaining Estimate: 5 minutes In SessionImpl it would be handy if when getting the results for a criteria query it checked to see if the class is mapped and failed fast, as it currently silently returns an empty list. I ran into this problem because we have multiple session factories with different class mapped and from one DAO i tried to query a class that wasnt mapped in the SessionFactory being used. Could also happen if you accidently put the wrong class or added the wrong import for a class. SessionImpl.java public List list(CriteriaImpl criteria) throws HibernateException { errorIfClosed(); checkTransactionSynchStatus(); String[] implementors = factory.getImplementors( criteria.getEntityOrClassName() ); int size = implementors.length; + if(size == 0) + throw new HibernateException(criteria.getEntityOrClassName() + " is not mapped");