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 * 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 IDBIndex_h 27 #define IDBIndex_h 28 29 #include "IDBCursor.h" 30 #include "IDBIndexBackendInterface.h" 31 #include "IDBKeyRange.h" 32 #include "IDBRequest.h" 33 #include "PlatformString.h" 34 #include <wtf/Forward.h> 35 36 #if ENABLE(INDEXED_DATABASE) 37 38 namespace WebCore { 39 40 class IDBObjectStore; 41 42 class IDBIndex : public RefCounted<IDBIndex> { 43 public: 44 static PassRefPtr<IDBIndex> create(PassRefPtr<IDBIndexBackendInterface> backend, IDBObjectStore* objectStore, IDBTransaction* transaction) 45 { 46 return adoptRef(new IDBIndex(backend, objectStore, transaction)); 47 } 48 ~IDBIndex(); 49 50 // Implement the IDL 51 String name() const { return m_backend->name(); } 52 IDBObjectStore* objectStore() const { return m_objectStore.get(); } 53 String keyPath() const { return m_backend->keyPath(); } 54 bool unique() const { return m_backend->unique(); } 55 56 // FIXME: Try to modify the code generator so this is unneeded. 57 PassRefPtr<IDBRequest> openCursor(ScriptExecutionContext* context, ExceptionCode& ec) { return openCursor(context, 0, ec); } 58 PassRefPtr<IDBRequest> openCursor(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionCode& ec) { return openCursor(context, keyRange, IDBCursor::NEXT, ec); } 59 PassRefPtr<IDBRequest> openCursor(ScriptExecutionContext*, PassRefPtr<IDBKeyRange>, unsigned short direction, ExceptionCode&); 60 61 PassRefPtr<IDBRequest> openKeyCursor(ScriptExecutionContext* context, ExceptionCode& ec) { return openKeyCursor(context, 0, ec); } 62 PassRefPtr<IDBRequest> openKeyCursor(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> keyRange, ExceptionCode& ec) { return openKeyCursor(context, keyRange, IDBCursor::NEXT, ec); } 63 PassRefPtr<IDBRequest> openKeyCursor(ScriptExecutionContext*, PassRefPtr<IDBKeyRange>, unsigned short direction, ExceptionCode&); 64 65 PassRefPtr<IDBRequest> get(ScriptExecutionContext*, PassRefPtr<IDBKey>, ExceptionCode&); 66 PassRefPtr<IDBRequest> getKey(ScriptExecutionContext*, PassRefPtr<IDBKey>, ExceptionCode&); 67 68 private: 69 IDBIndex(PassRefPtr<IDBIndexBackendInterface>, IDBObjectStore*, IDBTransaction*); 70 71 RefPtr<IDBIndexBackendInterface> m_backend; 72 RefPtr<IDBObjectStore> m_objectStore; 73 RefPtr<IDBTransaction> m_transaction; 74 }; 75 76 } // namespace WebCore 77 78 #endif 79 80 #endif // IDBIndex_h 81
