Basic implementation of NSPredicate and related classes

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@22880 72102866-910b-0410-8b05-ffd578937521

Headers/Foundation/NSCompoundPredicate.h

@@ -0,0 +1,50 @@
+/* Interface for NSCompoundPredicate for GNUStep
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+   Written by:  Dr. H. Nikolaus Schaller
+   Created: 2005
+   
+   This file is part of the GNUstep Base 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., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02111 USA.
+   */ 
+
+#ifndef __NSCompoundPredicate_h_GNUSTEP_BASE_INCLUDE
+#define __NSCompoundPredicate_h_GNUSTEP_BASE_INCLUDE
+
+#include <Foundation/NSPredicate.h>
+
+typedef enum _NSCompoundPredicateType
+{
+  NSNotPredicateType = 0,
+  NSAndPredicateType,
+  NSOrPredicateType
+} NSCompoundPredicateType;
+
+@interface NSCompoundPredicate : NSPredicate
+
++ (NSPredicate *) andPredicateWithSubpredicates: (NSArray *)list;
++ (NSPredicate *) notPredicateWithSubpredicate: (NSPredicate *)predicate;
++ (NSPredicate *) orPredicateWithSubpredicates: (NSArray *)list;
+
+- (NSCompoundPredicateType) compoundPredicateType;
+- (id) initWithType: (NSCompoundPredicateType)type
+      subpredicates: (NSArray *)list;
+- (NSArray *) subpredicates;
+
+@end
+#endif
+