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/*
Grr RSS Reader
Copyright (C) 2006, 2007 Guenther Noack <guenther@unix-ag.uni-kl.de>
Copyright (C) 2009 GNUstep Application Team
Riccardo Mottola
This application is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This application 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
Library General Public License for more details.
You should have received a copy of the GNU General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
*/
#import <Foundation/Foundation.h>
#import "Components.h"
#import "Database.h"
@interface TreeDatabaseComponent : NSObject <OutputProvidingComponent,Database>
{
NSMutableArray* topLevelElements;
NSMutableSet* allArticles;
// contains all articles that still need to be written back
NSMutableSet* dirtyArticles;
}
// archiving
-(BOOL)archive;
-(BOOL)unarchive;
-(NSString*)databaseStoragePath;
-(void)articleChanged: (NSNotification*)aNotification;
// helper methods
-(void)_fetchAllFeedsInDBElementArray: (NSArray*)array;
-(id<Feed>)feedForURL: (NSURL*)aURL
inArray: (NSArray*)anArray;
-(BOOL)_removeElement: (id<DatabaseElement>)anElement
fromMutableArray: (NSMutableArray*)array;
// ---------------------------------------------------
// sending notifications
// ---------------------------------------------------
-(void) sendChangeNotification;
@end
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