2 * Copyright (C) 2010 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
29 #if ENABLE(INDEXED_DATABASE)
31 #include "PlatformString.h"
32 #include <wtf/Forward.h>
33 #include <wtf/Threading.h>
37 class SQLiteStatement;
40 class IDBKey : public ThreadSafeShared<IDBKey> {
42 static PassRefPtr<IDBKey> create()
44 return adoptRef(new IDBKey());
46 static PassRefPtr<IDBKey> create(int32_t number)
48 return adoptRef(new IDBKey(number));
50 static PassRefPtr<IDBKey> create(const String& string)
52 return adoptRef(new IDBKey(string));
56 // In order of the least to the highest precedent in terms of sort order.
58 NullType = 0, // FIXME: Phase out support for null keys.
63 Type type() const { return m_type; }
65 const String& string() const
67 ASSERT(m_type == StringType);
71 int32_t number() const
73 ASSERT(m_type == NumberType);
77 static PassRefPtr<IDBKey> fromQuery(SQLiteStatement& query, int baseColumn);
79 bool isEqual(IDBKey* other);
80 String whereSyntax(String qualifiedTableName = "") const;
81 String lowerCursorWhereFragment(String comparisonOperator, String qualifiedTableName = "");
82 String upperCursorWhereFragment(String comparisonOperator, String qualifiedTableName = "");
83 int bind(SQLiteStatement& query, int column) const;
84 void bindWithNulls(SQLiteStatement& query, int baseColumn) const;
86 using ThreadSafeShared<IDBKey>::ref;
87 using ThreadSafeShared<IDBKey>::deref;
91 explicit IDBKey(int32_t);
92 explicit IDBKey(const String&);
101 #endif // ENABLE(INDEXED_DATABASE)