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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 */
-