Package org.apache.commons.collections4.functors

Class ExceptionClosure<E>

java.lang.Object

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

All Implemented Interfaces:

Serializable, Closure<E>

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

Closure implementation that always throws an exception.

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
static <E> Closure<E>	exceptionClosure()	Factory returning the singleton instance.
void	execute(E input)	Always throw an exception.

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

exceptionClosure

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

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)

Always throw an exception.

Specified by:

execute in interface Closure<E>

Parameters:

input - the input object

Throws:

FunctorException - always