third_party/WebKit/public/platform/modules/indexeddb/WebIDBKeyPath.h

   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 WebIDBKeyPath_h
  27 #define WebIDBKeyPath_h
  28
  29 #include "public/platform/WebCommon.h"
  30 #include "public/platform/WebString.h"
  31 #include "public/platform/WebVector.h"
  32 #include "public/platform/modules/indexeddb/WebIDBTypes.h"
  33
  34 namespace blink {
  35
  36 class WebIDBKeyPath {
  37 public:
  38     // FIXME: Update callers use constructors directly, and remove these.
  39     static WebIDBKeyPath create(const WebString& string) { return WebIDBKeyPath(string); }
  40     static WebIDBKeyPath create(const WebVector<WebString>& array) { return WebIDBKeyPath(array); }
  41     static WebIDBKeyPath createNull() { return WebIDBKeyPath(); }
  42
  43     WebIDBKeyPath() : m_type(WebIDBKeyPathTypeNull) { }
  44
  45     explicit WebIDBKeyPath(const WebString& string)
  46         : m_type(WebIDBKeyPathTypeString)
  47         , m_string(string)
  48     {
  49     }
  50
  51     explicit WebIDBKeyPath(const WebVector<WebString>& array)
  52         : m_type(WebIDBKeyPathTypeArray)
  53         , m_array(array)
  54     {
  55     }
  56
  57     WebIDBKeyPath(const WebIDBKeyPath& keyPath)
  58         : m_type(keyPath.m_type)
  59         , m_array(keyPath.m_array)
  60         , m_string(keyPath.m_string)
  61     {
  62     }
  63
  64     ~WebIDBKeyPath() { }
  65
  66     WebIDBKeyPath& operator=(const WebIDBKeyPath& keyPath)
  67     {
  68         m_type = keyPath.m_type;
  69         m_array = keyPath.m_array;
  70         m_string = keyPath.m_string;
  71         return *this;
  72     }
  73
  74     WebIDBKeyPathType keyPathType() const { return m_type; }
  75     const WebVector<WebString>& array() const { return m_array; } // Only valid for ArrayType.
  76     const WebString& string() const { return m_string; } // Only valid for StringType.
  77
  78 private:
  79     WebIDBKeyPathType m_type;
  80     WebVector<WebString> m_array;
  81     WebString m_string;
  82 };
  83
  84 } // namespace blink
  85
  86 #endif // WebIDBKeyPath_h