text: /*
   * Copyright (C) 2010 Google Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1.  Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   * 2.  Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef WebIDBIndex_h
  #define WebIDBIndex_h
  
  #include "WebExceptionCode.h"
  #include "WebIDBTransaction.h"
  #include "platform/WebString.h"
  
  namespace WebKit {
  
  class WebIDBCallbacks;
  class WebIDBKey;
  class WebIDBKeyRange;
  
  // See comment in WebIDBFactory for a high level overview of these classes.
  class WebIDBIndex {
  public:
      virtual ~WebIDBIndex() { }
  
      virtual WebString name() const
      {
          WEBKIT_ASSERT_NOT_REACHED();
          return WebString();
      }
      virtual WebString storeName() const
      {
          WEBKIT_ASSERT_NOT_REACHED();
          return WebString();
      }
      virtual WebString keyPath() const
      {
          WEBKIT_ASSERT_NOT_REACHED();
          return WebString();
      }
      virtual bool unique() const
      {
          WEBKIT_ASSERT_NOT_REACHED();
          return false;
      }
      virtual bool multiEntry() const
      {
          WEBKIT_ASSERT_NOT_REACHED();
          return false;
      }
  
      virtual void openObjectCursor(const WebIDBKeyRange&, unsigned short direction, WebIDBCallbacks*, const WebIDBTransaction&, WebExceptionCode&) { WEBKIT_ASSERT_NOT_REACHED(); }
      virtual void openKeyCursor(const WebIDBKeyRange&, unsigned short direction, WebIDBCallbacks*, const WebIDBTransaction&, WebExceptionCode&) { WEBKIT_ASSERT_NOT_REACHED(); }
      virtual void count(const WebIDBKeyRange&, WebIDBCallbacks*, const WebIDBTransaction&, WebExceptionCode&) { WEBKIT_ASSERT_NOT_REACHED(); }
      virtual void getObject(const WebIDBKey&, WebIDBCallbacks*, const WebIDBTransaction&, WebExceptionCode&) { WEBKIT_ASSERT_NOT_REACHED(); }
      virtual void getKey(const WebIDBKey&, WebIDBCallbacks*, const WebIDBTransaction&, WebExceptionCode&) { WEBKIT_ASSERT_NOT_REACHED(); }
  
  protected:
      WebIDBIndex() {}
  };
  
  } // namespace WebKit
  
  #endif // WebIDBIndex_h
  