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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 WebIDBTransaction_h
     27 #define WebIDBTransaction_h
     28 
     29 #include "WebExceptionCode.h"
     30 #include "WebString.h"
     31 
     32 namespace WebCore { class IDBTransactionBackendInterface; }
     33 
     34 namespace WebKit {
     35 
     36 class WebIDBObjectStore;
     37 class WebIDBTransactionCallbacks;
     38 
     39 // See comment in WebIDBFactory for a high level overview of these classes.
     40 class WebIDBTransaction {
     41 public:
     42     virtual ~WebIDBTransaction() { }
     43 
     44     virtual int mode() const
     45     {
     46         WEBKIT_ASSERT_NOT_REACHED();
     47         return 0;
     48     }
     49     virtual WebIDBObjectStore* objectStore(const WebString& name, WebExceptionCode&)
     50     {
     51         WEBKIT_ASSERT_NOT_REACHED();
     52         return 0;
     53     }
     54     virtual void abort() { WEBKIT_ASSERT_NOT_REACHED(); }
     55     virtual void didCompleteTaskEvents() { WEBKIT_ASSERT_NOT_REACHED(); }
     56     virtual void setCallbacks(WebIDBTransactionCallbacks*) { WEBKIT_ASSERT_NOT_REACHED(); }
     57 
     58     // FIXME: this is never called from WebCore. Find a cleaner solution.
     59     virtual WebCore::IDBTransactionBackendInterface* getIDBTransactionBackendInterface() const
     60     {
     61         return 0;
     62     }
     63 
     64 protected:
     65     WebIDBTransaction() {}
     66 };
     67 
     68 } // namespace WebKit
     69 
     70 #endif // WebIDBTransaction_h
     71