1/*
2 * Copyright (C) 2007, 2013 Apple 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 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28#ifndef SQLStatementBackend_h
29#define SQLStatementBackend_h
30
31#if ENABLE(SQL_DATABASE)
32
33#include "AbstractSQLStatementBackend.h"
34#include "SQLValue.h"
35#include <wtf/Forward.h>
36#include <wtf/Vector.h>
37#include <wtf/text/WTFString.h>
38
39namespace WebCore {
40
41class AbstractSQLStatement;
42class DatabaseBackend;
43class SQLError;
44class SQLTransactionBackend;
45
46class SQLStatementBackend : public AbstractSQLStatementBackend {
47public:
48    static PassRefPtr<SQLStatementBackend> create(std::unique_ptr<AbstractSQLStatement>,
49        const String& sqlStatement, const Vector<SQLValue>& arguments, int permissions);
50
51    bool execute(DatabaseBackend*);
52    bool lastExecutionFailedDueToQuota() const;
53
54    bool hasStatementCallback() const { return m_hasCallback; }
55    bool hasStatementErrorCallback() const { return m_hasErrorCallback; }
56
57    void setDatabaseDeletedError();
58    void setVersionMismatchedError();
59
60    AbstractSQLStatement* frontend();
61    virtual PassRefPtr<SQLError> sqlError() const;
62    virtual PassRefPtr<SQLResultSet> sqlResultSet() const;
63
64private:
65    SQLStatementBackend(std::unique_ptr<AbstractSQLStatement>, const String& statement,
66        const Vector<SQLValue>& arguments, int permissions);
67
68    void setFailureDueToQuota();
69    void clearFailureDueToQuota();
70
71    std::unique_ptr<AbstractSQLStatement> m_frontend;
72    String m_statement;
73    Vector<SQLValue> m_arguments;
74    bool m_hasCallback;
75    bool m_hasErrorCallback;
76
77    RefPtr<SQLError> m_error;
78    RefPtr<SQLResultSet> m_resultSet;
79
80    int m_permissions;
81};
82
83} // namespace WebCore
84
85#endif // ENABLE(SQL_DATABASE)
86
87#endif // SQLStatementBackend_h
88