1 /* 2 * Copyright (C) 2011 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 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef IDBObjectStoreBackendImpl_h 27 #define IDBObjectStoreBackendImpl_h 28 29 #include "IDBObjectStoreBackendInterface.h" 30 #include <wtf/HashMap.h> 31 #include <wtf/text/StringHash.h> 32 33 #if ENABLE(INDEXED_DATABASE) 34 35 namespace WebCore { 36 37 class IDBBackingStore; 38 class IDBDatabaseBackendImpl; 39 class IDBIndexBackendImpl; 40 class IDBTransactionBackendInterface; 41 class ScriptExecutionContext; 42 43 class IDBObjectStoreBackendImpl : public IDBObjectStoreBackendInterface { 44 public: 45 static PassRefPtr<IDBObjectStoreBackendImpl> create(IDBBackingStore* backingStore, int64_t databaseId, int64_t id, const String& name, const String& keyPath, bool autoIncrement) 46 { 47 return adoptRef(new IDBObjectStoreBackendImpl(backingStore, databaseId, id, name, keyPath, autoIncrement)); 48 } 49 static PassRefPtr<IDBObjectStoreBackendImpl> create(IDBBackingStore* backingStore, int64_t databaseId, const String& name, const String& keyPath, bool autoIncrement) 50 { 51 return adoptRef(new IDBObjectStoreBackendImpl(backingStore, databaseId, name, keyPath, autoIncrement)); 52 } 53 virtual ~IDBObjectStoreBackendImpl(); 54 55 static const int64_t InvalidId = 0; 56 int64_t id() const 57 { 58 ASSERT(m_id != InvalidId); 59 return m_id; 60 } 61 void setId(int64_t id) { m_id = id; } 62 int64_t databaseId() const { return m_databaseId; } 63 64 virtual String name() const { return m_name; } 65 virtual String keyPath() const { return m_keyPath; } 66 virtual PassRefPtr<DOMStringList> indexNames() const; 67 virtual bool autoIncrement() const { return m_autoIncrement; } 68 69 virtual void get(PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&); 70 virtual void put(PassRefPtr<SerializedScriptValue>, PassRefPtr<IDBKey>, PutMode, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&); 71 virtual void deleteFunction(PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&); 72 virtual void clear(PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&); 73 74 virtual PassRefPtr<IDBIndexBackendInterface> createIndex(const String& name, const String& keyPath, bool unique, IDBTransactionBackendInterface*, ExceptionCode&); 75 virtual PassRefPtr<IDBIndexBackendInterface> index(const String& name, ExceptionCode&); 76 virtual void deleteIndex(const String& name, IDBTransactionBackendInterface*, ExceptionCode&); 77 78 virtual void openCursor(PassRefPtr<IDBKeyRange> range, unsigned short direction, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&); 79 80 private: 81 IDBObjectStoreBackendImpl(IDBBackingStore*, int64_t databaseId, int64_t id, const String& name, const String& keyPath, bool autoIncrement); 82 IDBObjectStoreBackendImpl(IDBBackingStore*, int64_t databaseId, const String& name, const String& keyPath, bool autoIncrement); 83 84 void loadIndexes(); 85 PassRefPtr<IDBKey> genAutoIncrementKey(); 86 void resetAutoIncrementKeyCache() { m_autoIncrementNumber = -1; } 87 static PassRefPtr<IDBKey> selectKeyForPut(IDBObjectStoreBackendImpl*, IDBKey*, PutMode, IDBCallbacks*, RefPtr<SerializedScriptValue>&); 88 89 static void getInternal(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks>); 90 static void putInternal(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<SerializedScriptValue>, PassRefPtr<IDBKey>, PutMode, PassRefPtr<IDBCallbacks>, PassRefPtr<IDBTransactionBackendInterface>); 91 static void deleteInternal(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBKey> key, PassRefPtr<IDBCallbacks>); 92 static void clearInternal(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBCallbacks>); 93 static void createIndexInternal(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBIndexBackendImpl>, PassRefPtr<IDBTransactionBackendInterface>); 94 static void deleteIndexInternal(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBIndexBackendImpl>, PassRefPtr<IDBTransactionBackendInterface>); 95 static void openCursorInternal(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBKeyRange> range, unsigned short direction, PassRefPtr<IDBCallbacks>, PassRefPtr<IDBTransactionBackendInterface>); 96 97 // These are used as setVersion transaction abort tasks. 98 static void removeIndexFromMap(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBIndexBackendImpl>); 99 static void addIndexToMap(ScriptExecutionContext*, PassRefPtr<IDBObjectStoreBackendImpl>, PassRefPtr<IDBIndexBackendImpl>); 100 101 RefPtr<IDBBackingStore> m_backingStore; 102 103 int64_t m_databaseId; 104 int64_t m_id; 105 String m_name; 106 String m_keyPath; 107 bool m_autoIncrement; 108 109 typedef HashMap<String, RefPtr<IDBIndexBackendImpl> > IndexMap; 110 IndexMap m_indexes; 111 int m_autoIncrementNumber; 112 }; 113 114 } // namespace WebCore 115 116 #endif 117 118 #endif // IDBObjectStoreBackendImpl_h 119
