1/*
2 * Copyright (C) 2007, 2008, 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
29#ifndef Database_h
30#define Database_h
31
32#if ENABLE(SQL_DATABASE)
33
34#include "DatabaseBackend.h"
35#include "DatabaseBase.h"
36#include "DatabaseBasicTypes.h"
37#include "DatabaseError.h"
38#include <wtf/text/WTFString.h>
39
40namespace WebCore {
41
42class ChangeVersionData;
43class DatabaseCallback;
44class DatabaseContext;
45class SecurityOrigin;
46class SQLTransaction;
47class SQLTransactionBackend;
48class SQLTransactionCallback;
49class SQLTransactionErrorCallback;
50class VoidCallback;
51
52class Database : public DatabaseBase, public DatabaseBackend {
53public:
54    virtual ~Database();
55
56    // Direct support for the DOM API
57    virtual String version() const;
58    void changeVersion(const String& oldVersion, const String& newVersion, PassRefPtr<SQLTransactionCallback>,
59                       PassRefPtr<SQLTransactionErrorCallback>, PassRefPtr<VoidCallback> successCallback);
60    void transaction(PassRefPtr<SQLTransactionCallback>, PassRefPtr<SQLTransactionErrorCallback>, PassRefPtr<VoidCallback> successCallback);
61    void readTransaction(PassRefPtr<SQLTransactionCallback>, PassRefPtr<SQLTransactionErrorCallback>, PassRefPtr<VoidCallback> successCallback);
62
63    // Internal engine support
64    static Database* from(DatabaseBackend*);
65    DatabaseContext* databaseContext() const { return m_databaseContext.get(); }
66
67    Vector<String> tableNames();
68
69    virtual SecurityOrigin* securityOrigin() const;
70
71    virtual void markAsDeletedAndClose();
72    bool deleted() const { return m_deleted; }
73
74    virtual void closeImmediately();
75
76    void scheduleTransactionCallback(SQLTransaction*);
77
78private:
79    Database(PassRefPtr<DatabaseBackendContext>, const String& name,
80        const String& expectedVersion, const String& displayName, unsigned long estimatedSize);
81    PassRefPtr<DatabaseBackend> backend();
82    static PassRefPtr<Database> create(ScriptExecutionContext*, PassRefPtr<DatabaseBackendBase>);
83
84    void runTransaction(PassRefPtr<SQLTransactionCallback>, PassRefPtr<SQLTransactionErrorCallback>,
85        PassRefPtr<VoidCallback> successCallback, bool readOnly, const ChangeVersionData* = 0);
86
87    Vector<String> performGetTableNames();
88
89    RefPtr<SecurityOrigin> m_databaseThreadSecurityOrigin;
90    RefPtr<DatabaseContext> m_databaseContext;
91
92    bool m_deleted;
93
94    friend class DatabaseManager;
95    friend class DatabaseServer; // FIXME: remove this when the backend has been split out.
96    friend class DatabaseBackend; // FIXME: remove this when the backend has been split out.
97    friend class SQLStatement;
98    friend class SQLTransaction;
99};
100
101} // namespace WebCore
102
103#endif // ENABLE(SQL_DATABASE)
104
105#endif // Database_h
106