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PropertyProjection (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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org.hibernate.criterion
Class PropertyProjection

java.lang.Object
  org.hibernate.criterion.SimpleProjection
      org.hibernate.criterion.PropertyProjection

All Implemented Interfaces:

Projection, Serializable

Direct Known Subclasses:

Property

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public class PropertyProjection

extends SimpleProjection

A property value, or grouped property value

Author:

Gavin King

See Also:

Serialized Form

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Constructor Summary
protected	PropertyProjection(String prop)
protected	PropertyProjection(String prop, boolean grouped)

 

Method Summary
String	getPropertyName()
Type[]	getTypes(Criteria criteria, CriteriaQuery criteriaQuery)           Return types returned by the rendered SQL fragment
boolean	isGrouped()           Does this projection specify grouping attributes?
String	toGroupSqlString(Criteria criteria, CriteriaQuery criteriaQuery)           Render the SQL fragment to be used in the group by clause
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

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

PropertyProjection

protected PropertyProjection(String prop,
                             boolean grouped)

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PropertyProjection

protected PropertyProjection(String prop)

Method Detail

getPropertyName

public String getPropertyName()

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toString

public String toString()

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getTypes

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

Description copied from interface: Projection

Return types returned by the rendered SQL fragment

Parameters:

criteria -

criteriaQuery -

Returns:

Type[]

Throws:

HibernateException

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toSqlString

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

Description copied from interface: Projection

Render the SQL fragment

Parameters:

criteriaQuery -

Returns:

String

Throws:

HibernateException

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isGrouped

public boolean isGrouped()

Description copied from interface: Projection

Does this projection specify grouping attributes?

Specified by:

isGrouped in interface Projection

Overrides:

isGrouped in class SimpleProjection

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toGroupSqlString

public String toGroupSqlString(Criteria criteria,
                               CriteriaQuery criteriaQuery)
                        throws HibernateException

Description copied from interface: Projection

Render the SQL fragment to be used in the group by clause

Specified by:

toGroupSqlString in interface Projection

Overrides:

toGroupSqlString in class SimpleProjection

Throws:

HibernateException

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