/*
Violet - A program for editing UML diagrams.
Copyright (C) 2007 Cay S. Horstmann (http://horstmann.com)
Alexandre de Pellegrin (http://alexdp.free.fr);
This program 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.
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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.horstmann.violet.framework.userpreferences;
/**
* Interface for services storing and loading user preferences.
*/
public interface IUserPreferencesDao
{
/**
* Gets a previously stored string from the service.
*
* @param key the key of the string
* @param defval the value to return if no matching value was found
* @return the value stored with the given key, or defval if none was found
*/
public abstract String get(PreferencesConstant key, String defval);
/**
* Saves a key/value pair for later retrieval.
*
* @param key the key of the string to be stored
* @param value the value to to be stored
*/
public abstract void put(PreferencesConstant key, String value);
/**
* Resets all preferences
*/
public abstract void reset();
}