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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 IDBKey_h
#define IDBKey_h
#include "PlatformString.h"
#include <wtf/Forward.h>
#if ENABLE(INDEXED_DATABASE)
namespace WebCore {
class SQLiteStatement;
// FIXME: Add dates.
class IDBKey : public RefCounted<IDBKey> {
public:
static PassRefPtr<IDBKey> create()
{
return adoptRef(new IDBKey());
}
static PassRefPtr<IDBKey> create(int32_t number)
{
return adoptRef(new IDBKey(number));
}
static PassRefPtr<IDBKey> create(const String& string)
{
return adoptRef(new IDBKey(string));
}
~IDBKey();
// In order of the least to the highest precedent in terms of sort order.
enum Type {
NullType = 0,
StringType,
NumberType
};
Type type() const { return m_type; }
const String& string() const
{
ASSERT(m_type == StringType);
return m_string;
}
int32_t number() const
{
ASSERT(m_type == NumberType);
return m_number;
}
static PassRefPtr<IDBKey> fromQuery(SQLiteStatement& query, int baseColumn);
bool isEqual(IDBKey* other);
String whereSyntax(String qualifiedTableName = "") const;
String leftCursorWhereFragment(String comparisonOperator, String qualifiedTableName = "");
String rightCursorWhereFragment(String comparisonOperator, String qualifiedTableName = "");
int bind(SQLiteStatement& query, int column) const;
void bindWithNulls(SQLiteStatement& query, int baseColumn) const;
private:
IDBKey();
explicit IDBKey(int32_t);
explicit IDBKey(const String&);
Type m_type;
String m_string;
int32_t m_number;
};
}
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBKey_h
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