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 #include "config.h" 27 #include "IDBObjectStore.h" 28 29 #if ENABLE(INDEXED_DATABASE) 30 31 #include "DOMStringList.h" 32 #include "IDBAny.h" 33 #include "IDBDatabaseException.h" 34 #include "IDBIndex.h" 35 #include "IDBKey.h" 36 #include "IDBKeyRange.h" 37 #include "IDBTransaction.h" 38 #include "SerializedScriptValue.h" 39 #include <wtf/UnusedParam.h> 40 41 namespace WebCore { 42 43 static const unsigned short defaultDirection = IDBCursor::NEXT; 44 45 IDBObjectStore::IDBObjectStore(PassRefPtr<IDBObjectStoreBackendInterface> idbObjectStore, IDBTransaction* transaction) 46 : m_objectStore(idbObjectStore) 47 , m_transaction(transaction) 48 { 49 ASSERT(m_objectStore); 50 ASSERT(m_transaction); 51 // We pass a reference to this object before it can be adopted. 52 relaxAdoptionRequirement(); 53 } 54 55 String IDBObjectStore::name() const 56 { 57 return m_objectStore->name(); 58 } 59 60 String IDBObjectStore::keyPath() const 61 { 62 return m_objectStore->keyPath(); 63 } 64 65 PassRefPtr<DOMStringList> IDBObjectStore::indexNames() const 66 { 67 return m_objectStore->indexNames(); 68 } 69 70 PassRefPtr<IDBRequest> IDBObjectStore::get(ScriptExecutionContext* context, PassRefPtr<IDBKey> key, ExceptionCode& ec) 71 { 72 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 73 m_objectStore->get(key, request, m_transaction->backend(), ec); 74 if (ec) { 75 request->markEarlyDeath(); 76 return 0; 77 } 78 return request.release(); 79 } 80 81 PassRefPtr<IDBRequest> IDBObjectStore::add(ScriptExecutionContext* context, PassRefPtr<SerializedScriptValue> value, PassRefPtr<IDBKey> key, ExceptionCode& ec) 82 { 83 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 84 m_objectStore->put(value, key, IDBObjectStoreBackendInterface::AddOnly, request, m_transaction->backend(), ec); 85 if (ec) { 86 request->markEarlyDeath(); 87 return 0; 88 } 89 return request.release(); 90 } 91 92 PassRefPtr<IDBRequest> IDBObjectStore::put(ScriptExecutionContext* context, PassRefPtr<SerializedScriptValue> value, PassRefPtr<IDBKey> key, ExceptionCode& ec) 93 { 94 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 95 m_objectStore->put(value, key, IDBObjectStoreBackendInterface::AddOrUpdate, request, m_transaction->backend(), ec); 96 if (ec) { 97 request->markEarlyDeath(); 98 return 0; 99 } 100 return request.release(); 101 } 102 103 PassRefPtr<IDBRequest> IDBObjectStore::deleteFunction(ScriptExecutionContext* context, PassRefPtr<IDBKey> key, ExceptionCode& ec) 104 { 105 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 106 m_objectStore->deleteFunction(key, request, m_transaction->backend(), ec); 107 if (ec) { 108 request->markEarlyDeath(); 109 return 0; 110 } 111 return request.release(); 112 } 113 114 PassRefPtr<IDBRequest> IDBObjectStore::clear(ScriptExecutionContext* context, ExceptionCode& ec) 115 { 116 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 117 m_objectStore->clear(request, m_transaction->backend(), ec); 118 if (ec) { 119 request->markEarlyDeath(); 120 return 0; 121 } 122 return request.release(); 123 } 124 125 PassRefPtr<IDBIndex> IDBObjectStore::createIndex(const String& name, const String& keyPath, const OptionsObject& options, ExceptionCode& ec) 126 { 127 bool unique = false; 128 options.getKeyBool("unique", unique); 129 130 RefPtr<IDBIndexBackendInterface> index = m_objectStore->createIndex(name, keyPath, unique, m_transaction->backend(), ec); 131 ASSERT(!index != !ec); // If we didn't get an index, we should have gotten an exception code. And vice versa. 132 if (!index) 133 return 0; 134 return IDBIndex::create(index.release(), this, m_transaction.get()); 135 } 136 137 PassRefPtr<IDBIndex> IDBObjectStore::index(const String& name, ExceptionCode& ec) 138 { 139 RefPtr<IDBIndexBackendInterface> index = m_objectStore->index(name, ec); 140 ASSERT(!index != !ec); // If we didn't get an index, we should have gotten an exception code. And vice versa. 141 if (!index) 142 return 0; 143 return IDBIndex::create(index.release(), this, m_transaction.get()); 144 } 145 146 void IDBObjectStore::deleteIndex(const String& name, ExceptionCode& ec) 147 { 148 m_objectStore->deleteIndex(name, m_transaction->backend(), ec); 149 } 150 151 PassRefPtr<IDBRequest> IDBObjectStore::openCursor(ScriptExecutionContext* context, PassRefPtr<IDBKeyRange> range, unsigned short direction, ExceptionCode& ec) 152 { 153 if (direction != IDBCursor::NEXT && direction != IDBCursor::NEXT_NO_DUPLICATE && direction != IDBCursor::PREV && direction != IDBCursor::PREV_NO_DUPLICATE) { 154 // FIXME: May need to change when specced: http://www.w3.org/Bugs/Public/show_bug.cgi?id=11406 155 ec = IDBDatabaseException::CONSTRAINT_ERR; 156 return 0; 157 } 158 159 RefPtr<IDBRequest> request = IDBRequest::create(context, IDBAny::create(this), m_transaction.get()); 160 request->setCursorType(IDBCursorBackendInterface::ObjectStoreCursor); 161 m_objectStore->openCursor(range, direction, request, m_transaction->backend(), ec); 162 if (ec) { 163 request->markEarlyDeath(); 164 return 0; 165 } 166 return request.release(); 167 } 168 169 } // namespace WebCore 170 171 #endif // ENABLE(INDEXED_DATABASE) 172
