/*
 * Copyright (C) 2007, 2013 Apple 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.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * 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
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef ChangeVersionWrapper_h
#define ChangeVersionWrapper_h

#if ENABLE(SQL_DATABASE)

#include "SQLTransactionBackend.h"
#include <wtf/Forward.h>

namespace WebCore {

class SQLError;

class ChangeVersionWrapper : public SQLTransactionWrapper {
public:
    static PassRefPtr<ChangeVersionWrapper> create(const String& oldVersion, const String& newVersion) { return adoptRef(new ChangeVersionWrapper(oldVersion, newVersion)); }

    virtual bool performPreflight(SQLTransactionBackend*);
    virtual bool performPostflight(SQLTransactionBackend*);
    virtual SQLError* sqlError() const { return m_sqlError.get(); }
    virtual void handleCommitFailedAfterPostflight(SQLTransactionBackend*);

private:
    ChangeVersionWrapper(const String& oldVersion, const String& newVersion);

    String m_oldVersion;
    String m_newVersion;
    RefPtr<SQLError> m_sqlError;
};

} // namespace WebCore

#endif

#endif // ChangeVersionWrapper_h