/*
This file is part of BORG.
 
    BORG is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    BORG 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with BORG; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
Copyright 2003 by Mike Berger
 */
package net.sf.borg.model.db;

import java.util.Collection;

import net.sf.borg.model.entity.Appointment;


/**
 * A {@link EntityDB EntityDB} subclass which allows efficient retrieval of
 * appointment ToDo and Repeat keys.
 */
public interface AppointmentDB extends EntityDB<Appointment>
{

/**
 * Gets the keys of all Appointments that are marked as Todo's.
 * 
 * @return the todo keys
 * 
 * @throws Exception the exception
 */
public Collection<Integer> getTodoKeys() throws Exception;

/**
 * Gets the keys of all Appointments that are marked as repeating
 * 
 * @return the repeat keys
 * 
 * @throws Exception the exception
 */
public Collection<Integer> getRepeatKeys() throws Exception;
}
