OSX/libsecurity_filedb/lib/SelectionPredicate.h

   1 /*
   2  * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 //
  20 // SelectionPredicate.h
  21 //
  22
  23 #ifndef _H_APPLEDL_SELECTIONPREDICATE
  24 #define _H_APPLEDL_SELECTIONPREDICATE
  25
  26 #include "MetaRecord.h"
  27 #include <memory>
  28
  29 namespace Security
  30 {
  31
  32 class SelectionPredicate
  33 {
  34     NOCOPY(SelectionPredicate)
  35
  36 public:
  37     SelectionPredicate(const MetaRecord &inMetaRecord,
  38                                    const CSSM_SELECTION_PREDICATE &inPredicate);
  39         ~SelectionPredicate();
  40
  41     bool evaluate(const ReadSection &inReadSection) const;
  42
  43 private:
  44     const MetaAttribute &mMetaAttribute;
  45     CSSM_DB_OPERATOR mDbOperator;
  46         CssmDataContainer mData;
  47         DbValue *mValue;
  48 };
  49
  50 } // end namespace Security
  51
  52 #endif // _H_APPLEDL_SELECTIONPREDICATE