SQLStatement.h revision 8ccf722629b08f2a06b2cadbdc3d0c9dc885e25d 
1/*
2 * Copyright (C) 2007 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 SQLStatement_h
29#define SQLStatement_h
30
31#if ENABLE(DATABASE)
32
33#include "PlatformString.h"
34
35#include "SQLError.h"
36#include "SQLResultSet.h"
37#include "SQLStatementCallback.h"
38#include "SQLStatementErrorCallback.h"
39#include "SQLValue.h"
40
41#include <wtf/PassRefPtr.h>
42#include <wtf/RefPtr.h>
43#include <wtf/Threading.h>
44#include <wtf/Vector.h>
45
46namespace WebCore {
47
48class Database;
49class SQLTransaction;
50class String;
51
52class SQLStatement : public ThreadSafeShared<SQLStatement> {
53public:
54    static PassRefPtr<SQLStatement> create(const String&, const Vector<SQLValue>&, PassRefPtr<SQLStatementCallback>, PassRefPtr<SQLStatementErrorCallback>);
55
56    bool execute(Database*);
57    bool lastExecutionFailedDueToQuota() const;
58
59    bool hasStatementCallback() const { return m_statementCallback; }
60    bool hasStatementErrorCallback() const { return m_statementErrorCallback; }
61
62    void setDatabaseDeletedError();
63    void setVersionMismatchedError();
64
65    bool performCallback(SQLTransaction*);
66
67    SQLError* sqlError() const { return m_error.get(); }
68private:
69    SQLStatement(const String& statement, const Vector<SQLValue>& arguments, PassRefPtr<SQLStatementCallback> callback, PassRefPtr<SQLStatementErrorCallback> errorCallback);
70
71    void setFailureDueToQuota();
72    void clearFailureDueToQuota();
73
74    String m_statement;
75    Vector<SQLValue> m_arguments;
76    RefPtr<SQLStatementCallback> m_statementCallback;
77    RefPtr<SQLStatementErrorCallback> m_statementErrorCallback;
78
79    RefPtr<SQLError> m_error;
80    RefPtr<SQLResultSet> m_resultSet;
81};
82
83} // namespace WebCore
84
85#endif // ENABLE(DATABASE)
86
87#endif // SQLStatement_h
88