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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 IDBObjectStoreBackendInterface;
class IDBSQLiteDatabase;
class IDBTransactionBackendInterface;
class SQLiteDatabase;
class SQLiteStatement;
class SerializedScriptValue;
class IDBCursorBackendImpl : public IDBCursorBackendInterface {
public:
static PassRefPtr<IDBCursorBackendImpl> create(IDBSQLiteDatabase* database, PassRefPtr<IDBKeyRange> keyRange, IDBCursor::Direction direction, PassOwnPtr<SQLiteStatement> query, bool isSerializedScriptValueCursor, IDBTransactionBackendInterface* transaction, IDBObjectStoreBackendInterface* objectStore)
{
return adoptRef(new IDBCursorBackendImpl(database, keyRange, direction, query, isSerializedScriptValueCursor, transaction, objectStore));
}
virtual ~IDBCursorBackendImpl();
virtual unsigned short direction() const;
virtual PassRefPtr<IDBKey> key() const;
virtual PassRefPtr<IDBAny> value() const;
virtual void update(PassRefPtr<SerializedScriptValue>, PassRefPtr<IDBCallbacks>, ExceptionCode&);
virtual void continueFunction(PassRefPtr<IDBKey>, PassRefPtr<IDBCallbacks>, ExceptionCode&);
virtual void deleteFunction(PassRefPtr<IDBCallbacks>, ExceptionCode&);
private:
IDBCursorBackendImpl(IDBSQLiteDatabase*, PassRefPtr<IDBKeyRange>, IDBCursor::Direction, PassOwnPtr<SQLiteStatement> query, bool isSerializedScriptValueCursor, IDBTransactionBackendInterface*, IDBObjectStoreBackendInterface*);
bool currentRowExists();
void loadCurrentRow();
SQLiteDatabase& database() const;
static void continueFunctionInternal(ScriptExecutionContext*, PassRefPtr<IDBCursorBackendImpl>, PassRefPtr<IDBKey>, PassRefPtr<IDBCallbacks>);
static const int64_t InvalidId = -1;
RefPtr<IDBSQLiteDatabase> m_database;
RefPtr<IDBKeyRange> m_keyRange;
IDBCursor::Direction m_direction;
OwnPtr<SQLiteStatement> m_query;
bool m_isSerializedScriptValueCursor;
int64_t m_currentId;
// The key in the objectStore or index that this cursor iterates over.
RefPtr<IDBKey> m_currentKey;
// m_isSerializedScriptValueCursor will only be available for object cursors.
RefPtr<SerializedScriptValue> m_currentSerializedScriptValue;
// FIXME: make the primary key available via script for all types of cursors.
// For cursors on indices, this is the key in the objectstore that corresponds to the current entry in the index.
RefPtr<IDBKey> m_currentIDBKeyValue;
RefPtr<IDBTransactionBackendInterface> m_transaction;
RefPtr<IDBObjectStoreBackendInterface> m_objectStore;
};
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBCursorBackendImpl_h
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