程序包 org.hibernate.criterion

类 RowCountProjection

java.lang.Object

org.hibernate.criterion.SimpleProjection

org.hibernate.criterion.RowCountProjection

所有已实现的接口:

Serializable, EnhancedProjection, Projection

public class RowCountProjection
extends SimpleProjection

A row count

作者:

Gavin King

另请参阅:

序列化表格

构造器概要

构造器

构造器	说明
RowCountProjection()

方法概要

修饰符和类型	方法	说明
protected SQLFunction	getFunction(CriteriaQuery criteriaQuery)
Type[]	getTypes(Criteria criteria, CriteriaQuery criteriaQuery)	Types returned by the rendered SQL fragment.
String	toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery)	Render the SQL fragment to be used in the SELECT clause.
String	toString()

从类继承的方法 org.hibernate.criterion.SimpleProjection

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

从类继承的方法 java.lang.Object

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

构造器详细资料

RowCountProjection

public RowCountProjection()

方法详细资料

getTypes

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

从接口复制的说明: Projection

Types returned by the rendered SQL fragment. In other words what are the types that would represent the values this projection asked to be pulled into the result set?

参数:

criteria - The local criteria to which this project is attached (for resolution).

criteriaQuery - The overall criteria query instance.

返回:

The return types.

抛出:

HibernateException - Indicates a problem resolving the types

toSqlString

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

从接口复制的说明: Projection

Render the SQL fragment to be used in the SELECT clause.

参数:

criteria - The local criteria to which this project is attached (for resolution).

position - The number of columns rendered in the SELECT clause before this projection. Generally speaking this is useful to ensure uniqueness of the individual columns aliases.

criteriaQuery - The overall criteria query instance.

返回:

The SQL fragment to plug into the SELECT

抛出:

HibernateException - Indicates a problem performing the rendering

getFunction

protected SQLFunction getFunction(CriteriaQuery criteriaQuery)

toString

public String toString()

覆盖:

toString 在类中 Object