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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gdl2/trunk@14993 72102866-910b-0410-8b05-ffd578937521
2025-06-02 10:11:05 +00:00 · 2002-11-15 22:57:05 +00:00 · 2002-11-15 22:57:05 +00:00 · 3a2119e82a
commit 3a2119e82a
165 changed files with 62782 additions and 0 deletions
--- a/EOAccess/EOExpressionArray.h
+++ b/EOAccess/EOExpressionArray.h
@ -0,0 +1,107 @@
+/* 
+   EOExpressionArray.h
+
+   Copyright (C) 1996 Free Software Foundation, Inc.
+
+   Author: Ovidiu Predescu <ovidiu@bx.logicnet.ro>
+   Date: September 1996
+
+   This file is part of the GNUstep Database 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; see the file COPYING.LIB.
+   If not, write to the Free Software Foundation,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#ifndef __EOExpressionArray_h__
+#define __EOExpressionArray_h__
+
+#import <Foundation/NSString.h>
+#import <extensions/GCArray.h>
+
+@class EOAttribute;
+@class EOEntity;
+@class EOExpressionArray;
+
+@protocol EOExpressionContext <NSObject>
+
+- (NSString *)expressionValueForAttribute: (EOAttribute *)anAttribute;
+- (NSString *)expressionValueForAttributePath: (NSArray *)path;
+
+@end
+
+
+@interface EOExpressionArray : GCMutableArray
+{
+    NSString *_prefix;
+    NSString *_infix;
+    NSString *_suffix;
+//    NSString *_definition; it's rebuilt
+    EOAttribute *_realAttribute;
+
+    struct
+    {
+        unsigned int isFlattened:1; //TODO Why ?
+    } _flags;
+}
+
+ (EOExpressionArray*)expressionArray;
+ (EOExpressionArray*)expressionArrayWithPrefix: (NSString *)prefix
+                                          infix: (NSString *)infix
+                                         suffix: (NSString *)suffix;
+
+/* Initializing instances */
+- initWithPrefix: (NSString *)prefix
+           infix: (NSString *)infix
+          suffix: (NSString *)suffix;
+
+- (NSString *)prefix;
+- (NSString *)infix;
+- (NSString *)suffix;
+
+- (NSString *)definition;
+- (BOOL)isFlattened;
+- (EOAttribute *)realAttribute;
+
+/* Accessing the components */
+- (void)setPrefix: (NSString*)prefix;
+- (void)setInfix: (NSString*)infix;
+- (void)setSuffix: (NSString*)suffix;
+
+/* Checking contents */
+- (BOOL)referencesObject: (id)anObject;
+
+- (NSString *)expressionValueForContext: (id<EOExpressionContext>)ctx;
+
+ (EOExpressionArray *)parseExpression: (NSString *)expression
+                                entity: (EOEntity *)entity
+             replacePropertyReferences: (BOOL)flag;
+
+- (NSString*)valueForSQLExpression: (EOSQLExpression *)sqlExpression;
+
+@end /* EOExpressionArray */
+
+
+@interface NSObject (EOExpression)
+- (NSString*)expressionValueForContext: (id<EOExpressionContext>)context;
+@end
+
+
+@interface NSString (EOAttributeTypeCheck)
+
+- (BOOL)isNameOfARelationshipPath;
+
+@end
+
+#endif /* __EOExpressionArray_h__ */