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/*
 * GWTEventService
 * Copyright (c) 2011 and beyond, strawbill UG (haftungsbeschr?nkt)
 *
 * This 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 3 of
 * the License, or (at your option) any later version.
 * Other licensing for GWTEventService may also be possible on request.
 * Please view the license.txt of the project for more information.
 *
 * This software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package de.novanic.eventservice.client.event.command;

import com.google.gwt.user.client.rpc.AsyncCallback;

/**
 * Command which is used at the client side.
 *
 * @author sstrohschein
 *         
Date: 27.03.2009
 *         
Time: 23:29:21
 */
public interface ClientCommand
{
    /**
     * Executes the command at the client side.
     * {@link ClientCommand#getCommandCallback()} can be used to get the callback when the command
     */
    void execute();

    /**
     * Returns the callback of the command. That can be used to get the callback when the command executes a server
     * call.
     * @return callback of the command
     */
    AsyncCallback getCommandCallback();
}