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

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org.hibernate.criterion
Class NullExpression

java.lang.Object
  org.hibernate.criterion.NullExpression

All Implemented Interfaces:: Criterion, Serializable

public class NullExpression
extends Object
implements Criterion

Constrains a property to be null

Author:: Gavin King
See Also:: Serialized Form

Constructor Summary

protected NullExpression(String propertyName)


Method Summary

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()


Methods inherited from class java.lang.Object

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

Constructor Detail

NullExpression

protected NullExpression(String propertyName)

Method Detail

toSqlString

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

Description copied from interface: Criterion

Render the SQL fragment

Specified by:: toSqlString in interface Criterion

Parameters:: criteriaQuery -
Returns:: String
Throws:: HibernateException

getTypedValues

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