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/* Interface for Objective-C EltNodeCollector collection object
Copyright (C) 1993,1994 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
Date: May 1993
This file is part of the GNU Objective C Class Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* EltNodeCollector */
#ifndef __EltNodeCollector_h_INCLUDE_GNU
#define __EltNodeCollector_h_INCLUDE_GNU
#include <objects/stdobjects.h>
#include <objects/IndexedCollection.h>
/* Protocol for a node that also holds an element */
@protocol EltHolding
- initElement: (elt)anElement
encoding: (const char *)eltEncoding;
- (elt) elementData;
@end
/* It's is a bit unfortunate that we insist that the underlying
collector conform to IndexedCollecting. */
@interface EltNodeCollector : IndexedCollection
{
@private
id _contents_collector;
id _node_class;
int (*_comparison_function)(elt,elt);
}
- initWithType: (const char *)contentEncoding
nodeCollector: aNodeCollector
nodeClass: aNodeClass;
// The class of the autocreated link objects, must conform to <EltHolding>;
- eltNodeClass;
// Getting the underlying node collector that holds the contents;
- contentsCollector;
// Finding the node that contains anElement;
- (id <EltHolding>) eltNodeWithElement: (elt)anElement;
@end
#endif /* __EltNodeCollector_h_INCLUDE_GNU */
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