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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef IDBKeyRange_h
     27 #define IDBKeyRange_h
     28 
     29 #if ENABLE(INDEXED_DATABASE)
     30 
     31 #include "IDBKey.h"
     32 #include "OptionsObject.h"
     33 #include <wtf/PassRefPtr.h>
     34 #include <wtf/Threading.h>
     35 
     36 namespace WebCore {
     37 
     38 class IDBKeyRange : public ThreadSafeRefCounted<IDBKeyRange> {
     39 public:
     40     static PassRefPtr<IDBKeyRange> create(PassRefPtr<IDBKey> lower, PassRefPtr<IDBKey> upper, bool lowerOpen, bool upperOpen)
     41     {
     42         return adoptRef(new IDBKeyRange(lower, upper, lowerOpen, upperOpen));
     43     }
     44     ~IDBKeyRange() { }
     45 
     46     PassRefPtr<IDBKey> lower() const { return m_lower; }
     47     PassRefPtr<IDBKey> upper() const { return m_upper; }
     48     bool lowerOpen() const { return m_lowerOpen; }
     49     bool upperOpen() const { return m_upperOpen; }
     50 
     51     static PassRefPtr<IDBKeyRange> only(PassRefPtr<IDBKey> value);
     52     static PassRefPtr<IDBKeyRange> lowerBound(PassRefPtr<IDBKey> bound, bool open = false);
     53     static PassRefPtr<IDBKeyRange> upperBound(PassRefPtr<IDBKey> bound, bool open = false);
     54     static PassRefPtr<IDBKeyRange> bound(PassRefPtr<IDBKey> lower, PassRefPtr<IDBKey> upper, bool lowerOpen = false, bool upperOpen = false);
     55 
     56 private:
     57     IDBKeyRange(PassRefPtr<IDBKey> lower, PassRefPtr<IDBKey> upper, bool lowerOpen, bool upperOpen);
     58 
     59     RefPtr<IDBKey> m_lower;
     60     RefPtr<IDBKey> m_upper;
     61     bool m_lowerOpen;
     62     bool m_upperOpen;
     63 };
     64 
     65 } // namespace WebCore
     66 
     67 #endif
     68 
     69 #endif // IDBKeyRange_h
     70