EDIT

import org.hibernate.criterion.Projections;

import eu.etaxonomy.cdm.model.description.DescriptionElementSource;

import eu.etaxonomy.cdm.model.name.HybridRelationship;

import eu.etaxonomy.cdm.persistence.query.OrderHint;

	@Override

    public <T extends DescriptionElementSource>  Long countWithNameUsedInSource(Class<T> clazz){

        Criteria criteria = getSession().createCriteria(HybridRelationship.class);

        clazz = clazz != null? clazz : (Class<T>) DescriptionElementSource.class;

        Criteria crit = getSession().createCriteria(clazz);

        //count

        criteria.setProjection(Projections.rowCount());

        long result = (Long)criteria.uniqueResult();

        return result;

	}

	@Override

	public <T extends DescriptionElementSource> List<T> listWithNameUsedInSource(Class<T> clazz,

	        Integer pageSize, Integer pageNumber,List<OrderHint> orderHints, List<String> propertyPaths){

	    clazz = clazz != null? clazz : (Class<T>) DescriptionElementSource.class;

	    Criteria crit = getSession().createCriteria(clazz);

	    crit.add(Restrictions.isNotNull("nameUsedInSource"));

	    crit.addOrder(Order.desc("created"));

	    @SuppressWarnings({ "unchecked" })

	    List<T> results = crit.list();

	    return results;

	}