1 /*
2  * Copyright (C) 2010 Google 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;
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26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 #ifndef IDBFactoryBackendImpl_h
29 #define IDBFactoryBackendImpl_h
30 
31 #include "IDBFactoryBackendInterface.h"
32 #include <wtf/HashMap.h>
33 #include <wtf/text/StringHash.h>
34 
35 #if ENABLE(INDEXED_DATABASE)
36 
37 namespace WebCore {
38 
39 class DOMStringList;
40 
41 class IDBBackingStore;
42 class IDBDatabaseBackendImpl;
43 class IDBTransactionCoordinator;
44 
45 class IDBFactoryBackendImpl : public IDBFactoryBackendInterface {
46 public:
create()47     static PassRefPtr<IDBFactoryBackendImpl> create()
48     {
49         return adoptRef(new IDBFactoryBackendImpl());
50     }
51     virtual ~IDBFactoryBackendImpl();
52 
53     // Notifications from weak pointers.
54     void removeIDBDatabaseBackend(const String& uniqueIdentifier);
55     void addIDBBackingStore(const String& uniqueIdentifier, IDBBackingStore*);
56     void removeIDBBackingStore(const String& uniqueIdentifier);
57 
58     virtual void open(const String& name, PassRefPtr<IDBCallbacks>, PassRefPtr<SecurityOrigin>, Frame*, const String& dataDir, int64_t maximumSize, BackingStoreType);
59 
60 private:
61     IDBFactoryBackendImpl();
62 
63     typedef HashMap<String, IDBDatabaseBackendImpl*> IDBDatabaseBackendMap;
64     IDBDatabaseBackendMap m_databaseBackendMap;
65 
66     typedef HashMap<String, IDBBackingStore*> IDBBackingStoreMap;
67     IDBBackingStoreMap m_backingStoreMap;
68 
69     RefPtr<IDBTransactionCoordinator> m_transactionCoordinator;
70 
71     // Only one instance of the factory should exist at any given time.
72     static IDBFactoryBackendImpl* idbFactoryBackendImpl;
73 };
74 
75 } // namespace WebCore
76 
77 #endif
78 
79 #endif // IDBFactoryBackendImpl_h
80