diff options
Diffstat (limited to 'Source/WebCore/storage/IDBAny.h')
-rw-r--r-- | Source/WebCore/storage/IDBAny.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/Source/WebCore/storage/IDBAny.h b/Source/WebCore/storage/IDBAny.h new file mode 100644 index 0000000..8e3f83e --- /dev/null +++ b/Source/WebCore/storage/IDBAny.h @@ -0,0 +1,121 @@ +/* + * Copyright (C) 2010 Google Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef IDBAny_h +#define IDBAny_h + +#if ENABLE(INDEXED_DATABASE) + +#include <wtf/PassRefPtr.h> +#include <wtf/RefCounted.h> +#include <wtf/RefPtr.h> + +namespace WebCore { + +class IDBCursor; +class IDBDatabase; +class IDBFactory; +class IDBIndex; +class IDBKey; +class IDBObjectStore; +class IDBTransaction; +class SerializedScriptValue; + +class IDBAny : public RefCounted<IDBAny> { +public: + static PassRefPtr<IDBAny> createInvalid(); + static PassRefPtr<IDBAny> createNull(); + template<typename T> + static PassRefPtr<IDBAny> create(T* idbObject) + { + RefPtr<IDBAny> any = IDBAny::createInvalid(); + any->set(idbObject); + return any.release(); + } + template<typename T> + static PassRefPtr<IDBAny> create(PassRefPtr<T> idbObject) + { + RefPtr<IDBAny> any = IDBAny::createInvalid(); + any->set(idbObject); + return any.release(); + } + ~IDBAny(); + + enum Type { + UndefinedType = 0, + NullType, + IDBCursorType, + IDBDatabaseType, + IDBFactoryType, + IDBIndexType, + IDBKeyType, + IDBObjectStoreType, + IDBTransactionType, + SerializedScriptValueType + }; + + Type type() const { return m_type; } + // Use type() to figure out which one of these you're allowed to call. + PassRefPtr<IDBCursor> idbCursor(); + PassRefPtr<IDBDatabase> idbDatabase(); + PassRefPtr<IDBFactory> idbFactory(); + PassRefPtr<IDBIndex> idbIndex(); + PassRefPtr<IDBKey> idbKey(); + PassRefPtr<IDBObjectStore> idbObjectStore(); + PassRefPtr<IDBTransaction> idbTransaction(); + PassRefPtr<SerializedScriptValue> serializedScriptValue(); + + // Set can only be called once. + void setNull(); + void set(PassRefPtr<IDBCursor>); + void set(PassRefPtr<IDBDatabase>); + void set(PassRefPtr<IDBFactory>); + void set(PassRefPtr<IDBIndex>); + void set(PassRefPtr<IDBKey>); + void set(PassRefPtr<IDBObjectStore>); + void set(PassRefPtr<IDBTransaction>); + void set(PassRefPtr<SerializedScriptValue>); + +private: + IDBAny(); + + Type m_type; + + // Only one of the following should ever be in use at any given time. + RefPtr<IDBCursor> m_idbCursor; + RefPtr<IDBDatabase> m_idbDatabase; + RefPtr<IDBFactory> m_idbFactory; + RefPtr<IDBIndex> m_idbIndex; + RefPtr<IDBKey> m_idbKey; + RefPtr<IDBObjectStore> m_idbObjectStore; + RefPtr<IDBTransaction> m_idbTransaction; + RefPtr<SerializedScriptValue> m_serializedScriptValue; +}; + +} // namespace WebCore + +#endif // ENABLE(INDEXED_DATABASE) + +#endif // IDBAny_h |