Package de.espirit.or.query

Class IsNull

java.lang.Object

de.espirit.or.query.AbstractConstraint

de.espirit.or.query.IsNull

All Implemented Interfaces:

AttributeConstraint, Constraint, Serializable, Cloneable

public class IsNull
extends AbstractConstraint

Constraint to check if belonging attribute is null

Since:

4.0.17

See Also:

• Select.setConstraint(Constraint)
• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface de.espirit.or.query.Constraint

Constraint.Type

Constructor Summary

Constructors

Constructor	Description
IsNull(@NotNull String attributeName)	Creates a IsNull constraint for the given attribute.

Method Summary

Modifier and Type	Method	Description
Constraint.Type	getType()	The type Constraint.Type.IS_NULL

Methods inherited from class de.espirit.or.query.AbstractConstraint

getAttributeName, isEmpty

Methods inherited from class java.lang.Object

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

Constructor Details

IsNull

public IsNull(@NotNull
 @NotNull String attributeName)

Creates a IsNull constraint for the given attribute.

Parameters:

attributeName - the name of the attribute to create the IsNull constraint for.

Since:

4.0.17

Method Details

getType

public Constraint.Type getType()

The type Constraint.Type.IS_NULL

Specified by:

getType in interface Constraint

Specified by:

getType in class AbstractConstraint

Returns:

the type of this constraint.

Since:

4.0.17