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/*
* 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 IDBCursorBackendImpl_h
#define IDBCursorBackendImpl_h
#if ENABLE(INDEXED_DATABASE)
#include "IDBCursor.h"
#include "IDBCursorBackendInterface.h"
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class IDBDatabaseBackendImpl;
class IDBIndexBackendImpl;
class IDBKeyRange;
class IDBObjectStoreBackendImpl;
class SQLiteStatement;
class SerializedScriptValue;
class IDBCursorBackendImpl : public IDBCursorBackendInterface {
public:
static PassRefPtr<IDBCursorBackendImpl> create(PassRefPtr<IDBObjectStoreBackendImpl> objectStore, PassRefPtr<IDBKeyRange> keyRange, IDBCursor::Direction direction, PassOwnPtr<SQLiteStatement> query)
{
return adoptRef(new IDBCursorBackendImpl(objectStore, keyRange, direction, query));
}
static PassRefPtr<IDBCursorBackendImpl> create(PassRefPtr<IDBIndexBackendImpl> index, PassRefPtr<IDBKeyRange> keyRange, IDBCursor::Direction direction, PassOwnPtr<SQLiteStatement> query, bool isSerializedScriptValueCursor)
{
return adoptRef(new IDBCursorBackendImpl(index, keyRange, direction, query, isSerializedScriptValueCursor));
}
virtual ~IDBCursorBackendImpl();
virtual unsigned short direction() const;
virtual PassRefPtr<IDBKey> key() const;
virtual PassRefPtr<IDBAny> value() const;
virtual void update(PassRefPtr<SerializedScriptValue>, PassRefPtr<IDBCallbacks>);
virtual void continueFunction(PassRefPtr<IDBKey>, PassRefPtr<IDBCallbacks>);
virtual void remove(PassRefPtr<IDBCallbacks>);
private:
IDBCursorBackendImpl(PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBKeyRange>, IDBCursor::Direction, PassOwnPtr<SQLiteStatement> query);
IDBCursorBackendImpl(PassRefPtr<IDBIndexBackendImpl>, PassRefPtr<IDBKeyRange>, IDBCursor::Direction, PassOwnPtr<SQLiteStatement> query, bool isSerializedScriptValueCursor);
void loadCurrentRow();
IDBDatabaseBackendImpl* database() const;
static const int64_t InvalidId = -1;
// Only one or the other should be used.
RefPtr<IDBObjectStoreBackendImpl> m_idbObjectStore;
RefPtr<IDBIndexBackendImpl> m_idbIndex;
RefPtr<IDBKeyRange> m_keyRange;
IDBCursor::Direction m_direction;
OwnPtr<SQLiteStatement> m_query;
bool m_isSerializedScriptValueCursor;
int64_t m_currentId;
RefPtr<IDBKey> m_currentKey;
// Only one of these will ever be used for each instance. Which depends on m_isSerializedScriptValueCursor.
RefPtr<SerializedScriptValue> m_currentSerializedScriptValue;
RefPtr<IDBKey> m_currentIDBKeyValue;
};
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBCursorBackendImpl_h
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