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/*
* 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 IDBCursorWithValue;
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,
IDBCursorWithValueType,
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<IDBCursorWithValue> idbCursorWithValue();
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<IDBCursorWithValue>);
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<IDBCursorWithValue> m_idbCursorWithValue;
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
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