/*
 *  Copyright (C) 2004 Roman Krylov
 *  rkrylov@mail.ru
 *  
 *
 *  This program 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
 *  of the License, or (at your option) any later version.
 *
 *  This program 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 program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package org.JWrapper;

public abstract class Signal// implements Func_t
{
    protected java.util.List slots
            = new java.util.LinkedList();
    
    public Signal()
        { }
    
    public int connect(Func_t slot)
        {
        //System.out.println("slot "+slot.hashCode()+" to "+this.hashCode()+" added.");//testing
        slots.add(slot);
        return slots.size() -1;
        }
    
    public void disconnect(Func_t slot)
        { slots.remove(slot); }
    
    public void disconnect(int slot_index)
        { slots.remove(slot_index); }
    
    public void disconnect_all()
        { slots.clear(); }
    
    public int size()
        { return slots.size(); }
    
}