好的找到了解决方案，我真正需要的只是在多列上使用不同的输出行计数已经被指定更好，我知道）。

感兴趣的解决方案：

  session.beginTransaction（）; 
 Criteria criteria = session.createCriteria（clazz）; 

 ProjectionList p = Projections.projectionList（）; 
 p.add（Projections.property（supplierName））; 
 p.add（Projections.property（supplierNr））; 
 criteria.setProjection（Projections.distinct（p））; 

 criteria.setResultTransformer（Transformers.TO_LIST）; 

 ScrollableResults results = criteria.scroll（）; 
 results.last（）; 
 count = results.getRowNumber（）+ 1; 
 results.close（）; 
 session.getTransaction（）。commit（）; 
 

其中有趣的部分是ScrollableResult并且没有使用DetachedCriteria。

I have been searching for some time but not found enough answers to do this myself.

I have an MsSQL that looks like this:

select count(*) from 
   ( select distinct supplierName, supplierNr
   from dbo.InvoiceTypeBean
   ) as a

This returns what I want using pure SQL

But i need this in hibernate using criteria and/or detachedcriteria:

The detached criteria part:

DetachedCriteria dCriteria = DetachedCriteria.forClass(clazz);
ProjectionList p = Projections.projectionList();
p.add(Projections.property("supplierName"));
p.add(Projections.property("supplierNr"));
dCriteria.setProjection(Projections.distinct(p));

The problem is attaching it to the criteria:

Criteria criteria = session.createCriteria(clazz);
.... Some atachement
criteria.setProjection(Projections.rowCount());
int count = ((Number) criteria.uniqueResult()).intValue();

I really need the solution to use Criteria and/or DetachedCriteria as the queries are being build dynamically, and a greater solution is build using them.

Well found the solution, what I really needed was just the row count of the output when using distinct on multiple columns (could have been specified better I know).

The solution for interested:

session.beginTransaction();
Criteria criteria = session.createCriteria(clazz);

ProjectionList p = Projections.projectionList();
p.add(Projections.property("supplierName"));
p.add(Projections.property("supplierNr"));
criteria.setProjection(Projections.distinct(p));

criteria.setResultTransformer(Transformers.TO_LIST);

ScrollableResults results = criteria.scroll();
results.last();
count = results.getRowNumber() + 1;
results.close();
session.getTransaction().commit();

Where the interesting part is the scrollableresult and no use of DetachedCriteria.