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/*
 * $Id: PasswordStore.java 3343 2009-05-25 00:33:12Z kschaefe $
 *
 * Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
 * Santa Clara, California 95054, U.S.A. All rights reserved.
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package org.jdesktop.swingx.auth;

/**
 * PasswordStore specifies a mechanism to store passwords used to authenticate
 * using the LoginService. The actual mechanism used
 * to store the passwords is left up to the implementation.
 *
 * @author Bino George
 * @author Jonathan Giles
 */
public abstract class PasswordStore {

    /**
     * Saves a password for future use.
     *
     * @param username username used to authenticate.
     * @param server   server used for authentication
     * @param password password to save. Password can't be null. Use empty array for empty password.
     */
    public abstract boolean set(String username, String server, char[] password);

    /**
     * Fetches the password for a given server and username.
     *
     * @param username username
     * @param server   server
     * @return null if not found, a character array representing the password
     * otherwise. Returned array can be empty if the password is empty.
     */
    public abstract char[] get(String username, String server);

    /**
     * This should attempt to remove the given username from the password store, as well as any associated password.
     *
     * @param username The username to remove
     */
    public abstract void removeUserPassword(String username);
}