//$Id: RowCountProjection.java 9908 2006-05-08 20:59:20Z [email protected] $
package org.hibernate.criterion;
import org.hibernate.Criteria;
import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.type.Type;
/**
* A row count
* @author Gavin King
*/
public class RowCountProjection extends SimpleProjection {
protected RowCountProjection() {}
public String toString() {
return "count(*)";
}
public Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery)
throws HibernateException {
return new Type[] { Hibernate.INTEGER };
}
public String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery)
throws HibernateException {
return new StringBuffer()
.append("count(*) as y")
.append(position)
.append('_')
.toString();
}
}
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