SelectionPredicate.h   [plain text]

/*
 * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
 * 
 * The contents of this file constitute Original Code as defined in and are
 * subject to the Apple Public Source License Version 1.2 (the 'License').
 * You may not use this file except in compliance with the License. Please obtain
 * a copy of the License at http://www.apple.com/publicsource and read it before
 * using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
 * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
 * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
 * specific language governing rights and limitations under the License.
 */


//
// SelectionPredicate.h
//

#ifndef _H_APPLEDL_SELECTIONPREDICATE
#define _H_APPLEDL_SELECTIONPREDICATE

#include "MetaRecord.h"
#include <memory>

namespace Security
{

class SelectionPredicate
{
    NOCOPY(SelectionPredicate)
	
public:
    SelectionPredicate(const MetaRecord &inMetaRecord,
    				   const CSSM_SELECTION_PREDICATE &inPredicate);
	~SelectionPredicate();
	
    bool evaluate(const ReadSection &inReadSection) const;
	
private:
    const MetaAttribute &mMetaAttribute;
    CSSM_DB_OPERATOR mDbOperator;
	CssmDataContainer mData;
	DbValue *mValue;
};

} // end namespace Security

#endif // _H_APPLEDL_SELECTIONPREDICATE