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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef DatabaseSync_h 32 #define DatabaseSync_h 33 34 #include "bindings/v8/ScriptWrappable.h" 35 #include "modules/webdatabase/DatabaseBackendSync.h" 36 #include "modules/webdatabase/DatabaseBase.h" 37 #include "modules/webdatabase/DatabaseBasicTypes.h" 38 #include "wtf/Forward.h" 39 #include "wtf/text/WTFString.h" 40 41 #ifndef NDEBUG 42 #include "weborigin/SecurityOrigin.h" 43 #endif 44 45 namespace WebCore { 46 47 class DatabaseCallback; 48 class ExceptionState; 49 class SQLTransactionSync; 50 class SQLTransactionSyncCallback; 51 class SecurityOrigin; 52 53 // Instances of this class should be created and used only on the worker's context thread. 54 class DatabaseSync : public DatabaseBase, public DatabaseBackendSync, public ScriptWrappable { 55 public: 56 virtual ~DatabaseSync(); 57 58 void changeVersion(const String& oldVersion, const String& newVersion, PassRefPtr<SQLTransactionSyncCallback>, ExceptionState&); 59 void transaction(PassRefPtr<SQLTransactionSyncCallback>, ExceptionState&); 60 void readTransaction(PassRefPtr<SQLTransactionSyncCallback>, ExceptionState&); 61 62 virtual void markAsDeletedAndClose(); 63 virtual void closeImmediately(); 64 65 const String& lastErrorMessage() const { return m_lastErrorMessage; } 66 void setLastErrorMessage(const String& message) { m_lastErrorMessage = message; } 67 void setLastErrorMessage(const char* message, int sqliteCode) 68 { 69 setLastErrorMessage(String::format("%s (%d)", message, sqliteCode)); 70 } 71 void setLastErrorMessage(const char* message, int sqliteCode, const char* sqliteMessage) 72 { 73 setLastErrorMessage(String::format("%s (%d, %s)", message, sqliteCode, sqliteMessage)); 74 } 75 76 private: 77 DatabaseSync(PassRefPtr<DatabaseBackendContext>, const String& name, 78 const String& expectedVersion, const String& displayName, unsigned long estimatedSize); 79 PassRefPtr<DatabaseBackendSync> backend(); 80 static PassRefPtr<DatabaseSync> create(ScriptExecutionContext*, PassRefPtr<DatabaseBackendBase>); 81 82 void runTransaction(PassRefPtr<SQLTransactionSyncCallback>, bool readOnly, ExceptionState&); 83 void rollbackTransaction(PassRefPtr<SQLTransactionSync>); 84 85 String m_lastErrorMessage; 86 87 friend class DatabaseManager; 88 friend class DatabaseServer; // FIXME: remove this when the backend has been split out. 89 }; 90 91 } // namespace WebCore 92 93 #endif 94
