src/apps/cortex/Persistence/IStateArchivable.h

   1 /*
   2  * Copyright (c) 1999-2000, Eric Moon.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions, and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions, and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  27  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31
  32 // IStateArchivable.h
  33 // * PURPOSE
  34 //   Similar to BArchivable, but provides for archiving of
  35 //   a particular object's state, not the object itself.
  36 //   This mechanism doesn't instantiate objects.
  37 //
  38 // * HISTORY
  39 //   e.moon                     27nov99         Begun
  40
  41 #ifndef __IStateArchivable_H__
  42 #define __IStateArchivable_H__
  43
  44 #include "cortex_defs.h"
  45 __BEGIN_CORTEX_NAMESPACE
  46
  47 class IStateArchivable {
  48 public:
  49         // empty virtual dtor
  50         virtual ~IStateArchivable() {}
  51
  52 public:                                                                                         // *** INTERFACE
  53         virtual status_t importState(
  54                 const BMessage*                                         archive) =0;
  55
  56         virtual status_t exportState(
  57                 BMessage*                                                                       archive) const =0;
  58 };
  59
  60 __END_CORTEX_NAMESPACE
  61 #endif /*__IStateArchivable_H__*/
  62