//
// $Id: InvocationCodes.java,v 1.2 2004/08/27 02:20:19 mdb Exp $
//
// Narya library - tools for developing networked games
// Copyright (C) 2002-2004 Three Rings Design, Inc., All Rights Reserved
// http://www.threerings.net/code/narya/
//
// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

package com.threerings.presents.data;

/**
 * The invocation codes interface provides codes that are commonly used by
 * invocation service implementations. It is implemented as an interface
 * so that were an invocation service to desire to build on two or more
 * other services, it can provide a codes interface that inherits from all
 * of the services that it extends.
 */
public interface InvocationCodes
{
    /**
     * Generally used in responses that can either have the value success,
     * or a string code explaining the reason for failure.
     */
    public static final String SUCCESS = "success";

    /** An error code returned to clients when a service cannot be
     * performed because of some internal server error that we couldn't
     * explain in any meaningful way (things like null pointer
     * exceptions). */
    public static final String INTERNAL_ERROR = "m.internal_error";

    /** An error code returned to clients when a service cannot be
     * performed because the requesting client does not have the proper
     * access. */
    public static final String ACCESS_DENIED = "m.access_denied";
}
