bumped framework versions

[sope] / sope-core / NGExtensions / NGRuleEngine.subproj / NGRuleContext.m

diff --git a/sope-core/NGExtensions/NGRuleEngine.subproj/NGRuleContext.m b/sope-core/NGExtensions/NGRuleEngine.subproj/NGRuleContext.m
index d33db7c9eda0b8ce62883a212ba47874728ee3f6..9d39fffba7280c37960c8335b1397783090923cc 100644 (file)
--- a/sope-core/NGExtensions/NGRuleEngine.subproj/NGRuleContext.m
+++ b/sope-core/NGExtensions/NGRuleEngine.subproj/NGRuleContext.m
@@ -1,24 +1,23 @@
 /*
-  Copyright (C) 2000-2003 SKYRIX Software AG
+  Copyright (C) 2003-2004 SKYRIX Software AG
 
-  This file is part of OGo
+  This file is part of SOPE.
 
-  OGo is free software; you can redistribute it and/or modify it under
+  SOPE is free software; you can redistribute it and/or modify it under
   the terms of the GNU Lesser General Public License as published by the
   Free Software Foundation; either version 2, or (at your option) any
   later version.
 
-  OGo is distributed in the hope that it will be useful, but WITHOUT ANY
+  SOPE 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 Lesser General Public
   License for more details.
 
   You should have received a copy of the GNU Lesser General Public
-  License along with OGo; see the file COPYING.  If not, write to the
+  License along with SOPE; see the file COPYING.  If not, write to the
   Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.
 */
-// $Id$
 
 #include "NGRuleContext.h"
 #include "NGRule.h"
@@ -93,7 +92,7 @@
 /* processing */
 
 - (id)inferredValueForKey:(NSString *)_key {
-  NSArray *rules;
+  NSArray  *rules;
   unsigned i, count;
   
   if (self->debugOn)
@@ -120,15 +119,52 @@
   return nil;
 }
 
+- (NSArray *)allPossibleValuesForKey:(NSString *)_key {
+  NSMutableArray *values;
+  NSArray  *rules;
+  unsigned i, count;
+  
+  if (self->debugOn)
+    [self debugWithFormat:@"calculate all values for key: '%@'", _key];
+  
+  /* select candidates */
+  rules = [[self model] candidateRulesForKey:_key];
+  if (self->debugOn)
+    [self debugWithFormat:@"  candidate rules: %@", rules];
+  
+  values = [NSMutableArray arrayWithCapacity:16];
+  
+  /* check qualifiers */
+  for (i = 0, count = [rules count]; i < count; i++) {
+    NGRule *rule;
+    
+    rule = [rules objectAtIndex:i];
+    if ([(id<EOQualifierEvaluation>)[rule qualifier] evaluateWithObject:self]){
+      id v;
+      
+      if (self->debugOn)
+        [self debugWithFormat:@"  rule %i matches: %@", i, rule];
+      
+      v = [[rule action] fireInContext:self];
+      [values addObject:(v ? v : [NSNull null])];
+    }
+  }
+  if (self->debugOn)
+    [self debugWithFormat:@"  %d rules matched.", [values count]];
+  return values;
+}
+
 - (id)valueForKey:(NSString *)_key {
   id v;
+
+  // TODO: add rule cache?
   
   /* look for constants */
-  if ((v = [self->storedValues objectForKey:_key]))
+  if ((v = [self->storedValues objectForKey:_key]) != nil)
     return v;
   
   /* look into rule system */
-  if ((v = [self inferredValueForKey:_key]))
+  if ((v = [self inferredValueForKey:_key]) != nil)
     return v;
   
   return nil;