Package com.gigaspaces.internal.query.predicate.comparison

Class NullSpacePredicate

java.lang.Object

com.gigaspaces.internal.serialization.AbstractExternalizable

com.gigaspaces.internal.query.predicate.AbstractSpacePredicate

com.gigaspaces.internal.query.predicate.comparison.NullSpacePredicate

All Implemented Interfaces:

ISpacePredicate, SmartExternalizable, Externalizable, Serializable

public class NullSpacePredicate
extends AbstractSpacePredicate

A predicate to test for null values. This predicate returns true if and only if the predicate's argument is null.

Since:

7.1

Author:

Niv ingberg

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
NullSpacePredicate()	Default constructor for Externalizable.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
boolean	execute(Object target)	Executes this predicate on the specified target.
String	toString()

Methods inherited from class com.gigaspaces.internal.query.predicate.AbstractSpacePredicate

preparePredicate, requiresCacheManagerForExecution, setCacheManagerForExecution

Methods inherited from class com.gigaspaces.internal.serialization.AbstractExternalizable

readExternal, readExternalImpl, writeExternal, writeExternalImpl

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Externalizable

readExternal, writeExternal

Methods inherited from interface com.gigaspaces.serialization.SmartExternalizable

enabledSmartExternalizableWithReference

Constructor Details

NullSpacePredicate

public NullSpacePredicate()

Default constructor for Externalizable.

Method Details

execute

public boolean execute(Object target)

Description copied from interface: ISpacePredicate

Executes this predicate on the specified target.

Specified by:

execute in interface ISpacePredicate

Specified by:

execute in class AbstractSpacePredicate

Returns:

True if the specified target matches the predicate, false otherwise.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object