/*
 *        JacORB - a free Java ORB
 *
 *   Copyright (C) 1999-2004 Gerald Brose
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Library General Public
 *   License as published by the Free Software Foundation; either
 *   version 2 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
 *   Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this library; if not, write to the Free
 *   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

package org.jacorb.notification.servant;

import org.omg.CosEventComm.Disconnected;

public interface MessageSupplierDelegate
{
    public class PullResult
    {
        public final boolean success_;
        public final Object data_;
        
        public PullResult(Object data, boolean success)
        {
            success_ = success;
            data_ = data;
        }
    }
    
    /**
     * the implementation pulls one or more events from its Supplier
     * and hands over the pulled events to the TaskProcessor.
     */
    PullResult pullMessages() throws Disconnected;
    
    void queueMessages(PullResult data);
    
    boolean getConnected();
    
    boolean isSuspended();
}
