程序包 org.hibernate.criterion

类 NullExpression

java.lang.Object

org.hibernate.criterion.NullExpression

所有已实现的接口:

Serializable, Criterion

public class NullExpression
extends Object
implements Criterion

Constrains a property to be null

作者:

Gavin King

另请参阅:

序列化表格

构造器概要

构造器

限定符	构造器	说明
protected	NullExpression(String propertyName)	Constructs a NullExpression

方法概要

修饰符和类型	方法	说明
TypedValue[]	getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery)	Return typed values for all parameters in the rendered SQL fragment
String	toSqlString(Criteria criteria, CriteriaQuery criteriaQuery)	Render the SQL fragment
String	toString()

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

NullExpression

protected NullExpression(String propertyName)

Constructs a NullExpression

参数:

propertyName - The name of the property to check for null

另请参阅:

Restrictions.isNull(java.lang.String)

方法详细资料

toSqlString

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

从接口复制的说明: Criterion

Render the SQL fragment

指定者:

toSqlString 在接口中 Criterion

参数:

criteria - The local criteria

criteriaQuery - The overall criteria query

返回:

The generated SQL fragment

抛出:

HibernateException - Problem during rendering.

getTypedValues

public TypedValue[] getTypedValues(Criteria criteria,
                                   CriteriaQuery criteriaQuery)
                            throws HibernateException

从接口复制的说明: Criterion

Return typed values for all parameters in the rendered SQL fragment

指定者:

getTypedValues 在接口中 Criterion

参数:

criteria - The local criteria

criteriaQuery - The overall criteria query

返回:

The types values (for binding)

抛出:

HibernateException - Problem determining types.

toString

public String toString()

覆盖:

toString 在类中 Object