001/**
002 * Copyright (C) 2014  Universidade de Aveiro, DETI/IEETA, Bioinformatics Group - http://bioinformatics.ua.pt/
003 *
004 * This file is part of Dicoogle/dicoogle-sdk.
005 *
006 * Dicoogle/dicoogle-sdk is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * Dicoogle/dicoogle-sdk is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with Dicoogle.  If not, see <http://www.gnu.org/licenses/>.
018 */
019package pt.ua.dicoogle.sdk.task;
020
021import java.util.concurrent.Callable;
022
023/**
024 *
025 * @author Luís A. Bastião Silva <bastiao@ua.pt>
026 */
027public interface ProgressCallable<T> extends Callable<T>
028{
029    
030    
031    /**
032     * returns the task progress, goes from 0 to 1
033     * however, if we have an unbounded task a -1 is returned
034     */
035    public float getProgress();
036}