Package org.hibernate.criterion

Class NullExpression

java.lang.Object

org.hibernate.criterion.NullExpression

All Implemented Interfaces:

Serializable, Criterion

public class NullExpression
extends Object
implements Criterion

Constrains a property to be null

See Also:

• Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NullExpression(String propertyName)

Method Summary

Modifier and Type	Method	Description
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 Details

NullExpression

protected NullExpression(String propertyName)

Method Details

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:

criteria - The local criteria

criteriaQuery - The overal criteria query

Returns:

The generated SQL fragment

Throws:

HibernateException - Problem during rendering.

getTypedValues

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

Description copied from interface: Criterion

Return typed values for all parameters in the rendered SQL fragment

Specified by:

getTypedValues in interface Criterion

Parameters:

criteria - The local criteria

criteriaQuery - The overal criteria query

Returns:

The types values (for binding)

Throws:

HibernateException - Problem determining types.

toString

public String toString()

Overrides:

toString in class Object