/*
  Copyright (C) 2002-2005 SKYRIX Software AG

  This file is part of OpenGroupware.org

  OGo 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, or (at your option) any
  later version.

  OGo 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 OGo; see the file COPYING.  If not, write to the
  Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  02111-1307, USA.
*/

#ifndef __Backend_SxBackendManager_H__
#define __Backend_SxBackendManager_H__

#import <Foundation/NSObject.h>

/*
  SxBackendManager
  
  This is the superclass for the various backend managers. It keeps a
  reference to the context and has some methods which are useful in all
  backends.
*/

@class NSSet, NSString, NSNumber, NSMutableDictionary;
@class EOGlobalID, EOKeyGlobalID;
@class LSCommandContext;

@interface SxBackendManager : NSObject
{
  LSCommandContext *cmdctx; /* non-retained */
}

+ (id)managerWithContext:(LSCommandContext *)_ctx;
- (id)initWithContext:(LSCommandContext *)_ctx;

/* accessors */

- (LSCommandContext *)commandContext;
- (NSString *)modelName;

/* transaction support */

- (BOOL)isTransactionInProgress;
- (BOOL)commit;
- (BOOL)rollback;

/* common stuff */

- (EOKeyGlobalID *)globalIDForLoginAccount;
- (EOKeyGlobalID *)globalIDForGroupWithPrimaryKey:(NSNumber *)_group;
- (EOKeyGlobalID *)globalIDForGroupWithName:(NSString *)_group;
- (id)accountForGlobalID:(EOGlobalID *)_gid;

@end

#endif /* __Backend_SxBackendManager_H__ */