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/*
* 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
* (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 SQLTransaction_h
#define SQLTransaction_h
#if ENABLE(SQL_DATABASE)
#include "AbstractSQLTransaction.h"
#include "SQLCallbackWrapper.h"
#include "SQLStatement.h"
#include "SQLTransactionStateMachine.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class AbstractSQLTransactionBackend;
class Database;
class SQLError;
class SQLStatementCallback;
class SQLStatementErrorCallback;
class SQLTransactionCallback;
class SQLTransactionErrorCallback;
class SQLValue;
class VoidCallback;
class SQLTransaction : public SQLTransactionStateMachine<SQLTransaction>, public AbstractSQLTransaction {
public:
static PassRefPtr<SQLTransaction> create(Database*, PassRefPtr<SQLTransactionCallback>,
PassRefPtr<VoidCallback> successCallback, PassRefPtr<SQLTransactionErrorCallback>,
bool readOnly);
void performPendingCallback();
void executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments,
PassRefPtr<SQLStatementCallback>, PassRefPtr<SQLStatementErrorCallback>, ExceptionCode&);
Database* database() { return m_database.get(); }
private:
SQLTransaction(Database*, PassRefPtr<SQLTransactionCallback>,
PassRefPtr<VoidCallback> successCallback, PassRefPtr<SQLTransactionErrorCallback>,
bool readOnly);
void clearCallbackWrappers();
// APIs called from the backend published via AbstractSQLTransaction:
virtual void requestTransitToState(SQLTransactionState) OVERRIDE;
virtual bool hasCallback() const OVERRIDE;
virtual bool hasSuccessCallback() const OVERRIDE;
virtual bool hasErrorCallback() const OVERRIDE;
virtual void setBackend(AbstractSQLTransactionBackend*) OVERRIDE;
// State Machine functions:
virtual StateFunction stateFunctionFor(SQLTransactionState) OVERRIDE;
bool computeNextStateAndCleanupIfNeeded();
// State functions:
SQLTransactionState deliverTransactionCallback();
SQLTransactionState deliverTransactionErrorCallback();
SQLTransactionState deliverStatementCallback();
SQLTransactionState deliverQuotaIncreaseCallback();
SQLTransactionState deliverSuccessCallback();
SQLTransactionState unreachableState();
SQLTransactionState sendToBackendState();
SQLTransactionState nextStateForTransactionError();
RefPtr<Database> m_database;
RefPtr<AbstractSQLTransactionBackend> m_backend;
SQLCallbackWrapper<SQLTransactionCallback> m_callbackWrapper;
SQLCallbackWrapper<VoidCallback> m_successCallbackWrapper;
SQLCallbackWrapper<SQLTransactionErrorCallback> m_errorCallbackWrapper;
bool m_executeSqlAllowed;
RefPtr<SQLError> m_transactionError;
bool m_readOnly;
};
} // namespace WebCore
#endif
#endif // SQLTransaction_h
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