tasksource.java

java编写的OCR软件

package de.spieleck.util;

/**
 * A source of threads for the {@link ThreadPool}.
 *
 * @author fsn
 * @version 0.0
 */
public interface TaskSource
{
    /** 
     * Return the next thing to do. 
     * @return a Task to be executed.
     * @throws InterruptedException when the running task gets interrupted.
     */
    public Runnable getTask()
        throws InterruptedException;

    /** 
     * Is there more work to do.
     * @return true if there is still something to do.
     */
    public boolean isWorkLeft();

    /** 
     * Have we started work yet? 
     * @return true if something has been done.
     */
    public boolean isStarted();

    /** 
     * Block a thread until we are started 
     * @throws InterruptedException when the running task gets interrupted.
     */
    public void waitStart()
        throws InterruptedException;

}
//
//    Jacson - Text Filtering with Java.
//    Copyright (C) 2002 Frank S. Nestel (nestefan -at- users.sourceforge.net)
//
//    This library is free software; you can redistribute it and/or
//    modify it under the terms of the GNU Lesser General Public
//    License as published by the Free Software Foundation; either
//    version 2.1 of the License, or (at your option) any later version.
//
//    This library is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//    Lesser General Public License for more details.
//
//    You should have received a copy of the GNU Lesser General Public
//    License along with this library; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//