Initial revision

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1 72102866-910b-0410-8b05-ffd578937521

Source/objects/IndexedCollection.h

@@ -0,0 +1,66 @@
+/* Interface for Objective-C Sequential 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.
+*/ 
+
+#ifndef __IndexedCollection_h_INCLUDE_GNU
+#define __IndexedCollection_h_INCLUDE_GNU
+
+#include <objects/stdobjects.h>
+#include <objects/KeyedCollection.h>
+#include <objects/IndexedCollecting.h>
+
+@interface IndexedCollection : KeyedCollection <IndexedCollecting>
+
+@end
+
+/* The only subclassResponsibilities in IndexedCollection are:
+
+      insertElement:atIndex:
+      removeElementAtIndex:
+      elementAtIndex:
+
+   but subclass will want to override others as well in order to 
+   increase efficiency.  The following are especially important if
+   the subclass's implementation of "elementAtIndex:" is not efficient:
+
+      replaceElementAtIndex:with:
+      swapAtIndeces::
+      shallowCopyReplaceFrom:to:with:
+      sortAddElement:byCalling:
+      removeElement:
+      firstElement
+      lastElement
+      shallowCopyFrom:to:
+      withElementsCall:whileTrue:
+      withElementsInReverseCall:whileTrue:
+
+   and perhaps:
+
+      appendElement:
+      prependElement:
+      indexOfElement:
+      withElementsInReverseCall:
+
+*/
+
+
+#endif /* __IndexedCollection_h_INCLUDE_GNU */