Package org.apache.commons.collections4.functors

Class FalsePredicate<T>

java.lang.Object

org.apache.commons.collections4.functors.AbstractPredicate<T>

org.apache.commons.collections4.functors.FalsePredicate<T>

Type Parameters:

T - the type of the input to the predicate.

All Implemented Interfaces:

Serializable, Predicate<T>, Predicate<T>

public final class FalsePredicate<T>
extends AbstractPredicate<T>
implements Serializable

Predicate implementation that always returns false.

Since:

3.0

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final Predicate	INSTANCE	Singleton predicate instance
private static final long	serialVersionUID	Serial version UID

Constructor Summary

Constructors

Modifier	Constructor	Description
private	FalsePredicate()	Restricted constructor.

Method Summary

Modifier and Type	Method	Description
static <T> Predicate<T>	falsePredicate()	Gets a typed instance.
private Object	readResolve()	Returns the singleton instance.
boolean	test(T object)	Evaluates the predicate returning false always.

Methods inherited from class org.apache.commons.collections4.functors.AbstractPredicate

evaluate

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Predicate

and, negate, or

Field Details

serialVersionUID

private static final long serialVersionUID

Serial version UID

See Also:

• Constant Field Values

INSTANCE

public static final Predicate INSTANCE

Singleton predicate instance

Constructor Details

FalsePredicate

private FalsePredicate()

Restricted constructor.

Method Details

falsePredicate

public static <T> Predicate<T> falsePredicate()

Gets a typed instance.

Type Parameters:

T - the type that the predicate queries

Returns:

the singleton instance

Since:

4.0

readResolve

private Object readResolve()

Returns the singleton instance.

Returns:

the singleton instance.

test

public boolean test(T object)

Evaluates the predicate returning false always.

Specified by:

test in interface Predicate<T>

Specified by:

test in interface Predicate<T>

Parameters:

object - the input object

Returns:

false always