001/*
002 * flattr4j - A Java library for Flattr
003 *
004 * Copyright (C) 2014 Richard "Shred" Körber
005 *   http://flattr4j.shredzone.org
006 *
007 * This program is free software: you can redistribute it and/or modify
008 * it under the terms of the GNU General Public License / GNU Lesser
009 * General Public License as published by the Free Software Foundation,
010 * either version 3 of the License, or (at your option) any later version.
011 *
012 * Licensed under the Apache License, Version 2.0 (the "License");
013 * you may not use this file except in compliance with the License.
014 *
015 * This program is distributed in the hope that it will be useful,
016 * but WITHOUT ANY WARRANTY; without even the implied warranty of
017 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
018 */
019package org.shredzone.flattr4j.async;
020
021import org.shredzone.flattr4j.FlattrService;
022
023/**
024 * A {@link FlattrCallable} that does not return a result.
025 *
026 * @author Iulius Gutberlet
027 * @author Richard "Shred" Körber
028 */
029public abstract class VoidFlattrCallable extends AbstractFlattrCallable<Void> {
030
031    /**
032     * Calls the appropriate method at the service.
033     *
034     * @param service
035     *            Preconfigured {@link FlattrService} to be invoked
036     */
037    public abstract void execute(FlattrService service) throws Exception; //NOSONAR: Accept all exceptions
038
039    @Override
040    public Void call(FlattrService service) throws Exception {
041        execute(service);
042        return null;
043    }
044
045}