| /******************************************************************************* |
| * Copyright (c) 2013 Oracle. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License 2.0, which accompanies this distribution |
| * and is available at https://www.eclipse.org/legal/epl-2.0/. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.common.utility.internal.transformer; |
| |
| import org.eclipse.jpt.common.utility.internal.ObjectTools; |
| import org.eclipse.jpt.common.utility.transformer.InterruptibleTransformer; |
| |
| /** |
| * @see UpcastingTransformerWrapper |
| */ |
| public class UpcastingInterruptibleTransformerWrapper<I, O, X extends O> |
| implements InterruptibleTransformer<I, O> |
| { |
| private final InterruptibleTransformer<? super I, ? extends X> transformer; |
| |
| public UpcastingInterruptibleTransformerWrapper(InterruptibleTransformer<? super I, ? extends X> transformer) { |
| super(); |
| if (transformer == null) { |
| throw new NullPointerException(); |
| } |
| this.transformer = transformer; |
| } |
| |
| /** |
| * No need for casting as the type is guaranteed by the generic type |
| * argument. |
| */ |
| public O transform(I input) throws InterruptedException { |
| return this.transformer.transform(input); |
| } |
| |
| @Override |
| public String toString() { |
| return ObjectTools.toString(this, this.transformer); |
| } |
| } |