Package org.apache.commons.collections4.functors

Class NOPClosure<E>

java.lang.Object

org.apache.commons.collections4.functors.NOPClosure<E>

All Implemented Interfaces:

Serializable, Closure<E>

public final class NOPClosure<E>
extends Object
implements Closure<E>, Serializable

Closure implementation that does nothing.

Since:

3.0

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final Closure	INSTANCE	Singleton predicate instance

Method Summary

Modifier and Type	Method	Description
void	execute(E input)	Do nothing.
static <E> Closure<E>	nopClosure()	Factory returning the singleton instance.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final Closure INSTANCE

Singleton predicate instance

Method Details

nopClosure

public static <E> Closure<E> nopClosure()

Factory returning the singleton instance.

Type Parameters:

E - the type that the closure acts on

Returns:

the singleton instance

Since:

3.1

execute

public void execute(E input)

Do nothing.

Specified by:

execute in interface Closure<E>

Parameters:

input - the input object