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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.
*/
#include "config.h"
#include "IDBKeyRange.h"
#include "IDBKey.h"
#if ENABLE(INDEXED_DATABASE)
namespace WebCore {
IDBKeyRange::IDBKeyRange(PassRefPtr<IDBKey> left, PassRefPtr<IDBKey> right, unsigned short flags)
: m_left(left)
, m_right(right)
, m_flags(flags)
{
}
PassRefPtr<IDBKeyRange> IDBKeyRange::only(PassRefPtr<IDBKey> prpValue)
{
RefPtr<IDBKey> value = prpValue;
return IDBKeyRange::create(value, value, IDBKeyRange::SINGLE);
}
PassRefPtr<IDBKeyRange> IDBKeyRange::leftBound(PassRefPtr<IDBKey> bound, bool open)
{
unsigned short flags = IDBKeyRange::LEFT_BOUND;
if (open)
flags |= IDBKeyRange::LEFT_OPEN;
return IDBKeyRange::create(bound, IDBKey::create(), flags);
}
PassRefPtr<IDBKeyRange> IDBKeyRange::rightBound(PassRefPtr<IDBKey> bound, bool open)
{
unsigned short flags = IDBKeyRange::RIGHT_BOUND;
if (open)
flags |= IDBKeyRange::RIGHT_OPEN;
return IDBKeyRange::create(IDBKey::create(), bound, flags);
}
PassRefPtr<IDBKeyRange> IDBKeyRange::bound(PassRefPtr<IDBKey> left, PassRefPtr<IDBKey> right, bool openLeft, bool openRight)
{
unsigned short flags = IDBKeyRange::LEFT_BOUND | IDBKeyRange::RIGHT_BOUND;
if (openLeft)
flags |= IDBKeyRange::LEFT_OPEN;
if (openRight)
flags |= IDBKeyRange::RIGHT_OPEN;
return IDBKeyRange::create(left, right, flags);
}
String IDBKeyRange::leftWhereClauseComparisonOperator() const
{
if (m_flags & LEFT_OPEN)
return "<";
if (m_flags & LEFT_BOUND)
return "<=";
if (m_flags == SINGLE)
return "=";
ASSERT_NOT_REACHED();
return "";
}
String IDBKeyRange::rightWhereClauseComparisonOperator() const
{
if (m_flags & RIGHT_OPEN)
return "<";
if (m_flags & RIGHT_BOUND)
return "<=";
if (m_flags == SINGLE)
return "=";
ASSERT_NOT_REACHED();
return "";
}
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
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