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 Computer, 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/PassOwnPtr.h>
37#include <wtf/Vector.h>
38#include <wtf/text/WTFString.h>
39
40namespace WebCore {
41
42class AbstractSQLStatement;
43class DatabaseBackend;
44class SQLError;
45class SQLTransactionBackend;
46
47class SQLStatementBackend : public AbstractSQLStatementBackend {
48public:
49    static PassRefPtr<SQLStatementBackend> create(PassOwnPtr<AbstractSQLStatement>,
50        const String& sqlStatement, const Vector<SQLValue>& arguments, int permissions);
51
52    bool execute(DatabaseBackend*);
53    bool lastExecutionFailedDueToQuota() const;
54
55    bool hasStatementCallback() const { return m_hasCallback; }
56    bool hasStatementErrorCallback() const { return m_hasErrorCallback; }
57
58    void setDatabaseDeletedError();
59    void setVersionMismatchedError();
60
61    AbstractSQLStatement* frontend();
62    virtual PassRefPtr<SQLError> sqlError() const;
63    virtual PassRefPtr<SQLResultSet> sqlResultSet() const;
64
65private:
66    SQLStatementBackend(PassOwnPtr<AbstractSQLStatement>, const String& statement,
67        const Vector<SQLValue>& arguments, int permissions);
68
69    void setFailureDueToQuota();
70    void clearFailureDueToQuota();
71
72    OwnPtr<AbstractSQLStatement> m_frontend;
73    String m_statement;
74    Vector<SQLValue> m_arguments;
75    bool m_hasCallback;
76    bool m_hasErrorCallback;
77
78    RefPtr<SQLError> m_error;
79    RefPtr<SQLResultSet> m_resultSet;
80
81    int m_permissions;
82};
83
84} // namespace WebCore
85
86#endif // ENABLE(SQL_DATABASE)
87
88#endif // SQLStatementBackend_h
89