Package org.apache.commons.collections4.functors

Class ExceptionTransformer<I,O>

java.lang.Object

org.apache.commons.collections4.functors.ExceptionTransformer<I,O>

All Implemented Interfaces:

java.io.Serializable, Transformer<I,O>

public final class ExceptionTransformer<I,O>
extends java.lang.Object
implements Transformer<I,O>, java.io.Serializable

Transformer implementation that always throws an exception.

Since:

3.0

Version:

$Id: ExceptionTransformer.java 1543950 2013-11-20 21:13:35Z tn $

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static Transformer	INSTANCE	Singleton predicate instance

Method Summary

Modifier and Type	Method	Description
static <I,O> Transformer<I,O>	exceptionTransformer()	Factory returning the singleton instance.
O	transform(I input)	Transforms the input to result by cloning it.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final Transformer INSTANCE

Singleton predicate instance

Method Detail

exceptionTransformer

public static <I,O> Transformer<I,O> exceptionTransformer()

Factory returning the singleton instance.

Type Parameters:

I - the input type

O - the output type

Returns:

the singleton instance

Since:

3.1

transform

public O transform(I input)

Transforms the input to result by cloning it.

Specified by:

transform in interface Transformer<I,O>

Parameters:

input - the input object to transform

Returns:

never

Throws:

FunctorException - always