CountProjection (Hibernate API Documentation) - Hibernate 3.2.4 正式版 API 英文文档

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org.hibernate.criterion
Class CountProjection

java.lang.Object
  org.hibernate.criterion.SimpleProjection
      org.hibernate.criterion.AggregateProjection
          org.hibernate.criterion.CountProjection

All Implemented Interfaces:: Projection, Serializable

public class CountProjection
extends AggregateProjection

A count

Author:: Gavin King
See Also:: Serialized Form

Field Summary

Fields inherited from class org.hibernate.criterion.AggregateProjection

propertyName

Constructor Summary

protected CountProjection(String prop)


Method Summary

Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery)
          Return types returned by the rendered SQL fragment

CountProjection setDistinct()


String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery)
          Render the SQL fragment

String toString()


Methods inherited from class org.hibernate.criterion.SimpleProjection

as, getAliases, getColumnAliases, getColumnAliases, getTypes, isGrouped, toGroupSqlString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CountProjection

protected CountProjection(String prop)

Method Detail

toString

public String toString()

Overrides:: toString in class AggregateProjection

getTypes

public Type[] getTypes(Criteria criteria,
                       CriteriaQuery criteriaQuery)
                throws HibernateException

Description copied from interface: Projection

Return types returned by the rendered SQL fragment

Specified by:: getTypes in interface Projection
Overrides:: getTypes in class AggregateProjection

Throws:: HibernateException

toSqlString

public String toSqlString(Criteria criteria,
                          int position,
                          CriteriaQuery criteriaQuery)
                   throws HibernateException