subquery and aliases with criteria api
===

My question is rather simple: I have this query:

     SELECT * FROM TABLE t WHERE 
        (SELECT count(*) FROM TABLE tbis WHERE  TRUNC(t.date) = TRUNC(tbis.date))>1 ;



 the field date is a timestamp.


How do I do that with the criteria API?

I have something like this (trunc() is valid with my db server, the sql request works.):

    Criteria crit = session.createCriteria(Myclass.class, "t");
    crit.createAlias("t.date", "dateT");
    
    DetachedCriteria subcrit = DetachedCriteria.forclass(MyClass.class, "tbis");
    subcrit.createAlias("tbis.date", "dateTbis");
    
    subcrit.add(Restrictions.sqlRestriction("TRUNC(dateT) = TRUNC(dateTbis)"));
    
    numberOfDuplicates.setProjection(Projections.count("id"));
    
    crit .add(Subqueries.gt(1, subcrit));
    return crit.list();

Somehow in the log, i got:
org.hibernate.QueryException: not an association: date

I tried various things, but couldn't get it to work...

I tried: 

    Criteria crit = session.createCriteria(Myclass.class, "t");
    
    DetachedCriteria subcrit = DetachedCriteria.forclass(MyClass.class, "tbis");
    
    subcrit.add(Restrictions.sqlRestriction("TRUNC(t.date) = TRUNC(tbis.date)"));
    
    numberOfDuplicates.setProjection(Projections.count("id"));
    
    crit .add(Subqueries.gt(1, subcrit));

    return crit.list();

and the SQL condition generated was:

    TRUNC(t.date) = TRUNC(tbis.date))

 with the log:

    18:34:04,461 WARN  [JDBCExceptionReporter] SQL Error: 904, SQLState: 42000
    18:34:04,461 ERROR [JDBCExceptionReporter] ORA-00904: "T"."DATE": invalid identifier
    
    18:34:04,461 WARN  [CriteriaAdapter] list exception: 
    org.hibernate.exception.SQLGrammarException: could not execute query


Also

    Criteria crit = session.createCriteria(Myclass.class, "t");
    
    DetachedCriteria subcrit = DetachedCriteria.forclass(MyClass.class, "tbis");
    
    subcrit.add(Restrictions.sqlRestriction("TRUNC({t}.date) = TRUNC({tbis}.date)"));
    
    numberOfDuplicates.setProjection(Projections.count("id"));
    
    crit .add(Subqueries.gt(1, subcrit));

    return crit.list();

with the condition becoming:

    TRUNC({t}.date) = TRUNC({tbis}.date))

and the logs:

    18:36:28,206 WARN  [TxConnectionManager] Connection error occured: org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener@1b3febd3[state=NORMAL mc=org.jboss.resource.adapter.jdbc.xa.XAManagedConnection@4cb16baf handles=1 lastUse=1343284588160 permit=true trackByTx=true mcp=org.jboss.resource.connectionmanager.JBossManagedConnectionPool$OnePool@7f16f514 context=org.jboss.resource.connectionmanager.InternalManagedConnectionPool@3c34353b xaResource=org.jboss.resource.adapter.jdbc.xa.XAManagedConnection@4cb16baf txSync=null]
    java.lang.NullPointerException
    at oracle.jdbc.driver.T4C8Oall.getNumRows(T4C8Oall.java:1153)
    [...]
    at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)

Or even: 

    Criteria crit = session.createCriteria(Myclass.class, "t");
    
    DetachedCriteria subcrit = DetachedCriteria.forclass(MyClass.class, "tbis");
    
    subcrit.add(Restrictions.sqlRestriction("TRUNC({t.date}) = TRUNC({tbis.date})"));
    
    numberOfDuplicates.setProjection(Projections.count("id"));
    
    crit .add(Subqueries.gt(1, subcrit));

    return crit.list();

With the same result as previously.


I think criteria is unable to detect the alias of the subquery... But I have to access  that value, any workaround?