1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2  * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
3  * This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef mozStorageRow_h
8 #define mozStorageRow_h
9 
10 #include "mozIStorageRow.h"
11 #include "nsCOMArray.h"
12 #include "nsDataHashtable.h"
13 #include "mozilla/Attributes.h"
14 class nsIVariant;
15 struct sqlite3_stmt;
16 
17 namespace mozilla {
18 namespace storage {
19 
20 class Row final : public mozIStorageRow
21 {
22 public:
23   NS_DECL_THREADSAFE_ISUPPORTS
24   NS_DECL_MOZISTORAGEROW
25   NS_DECL_MOZISTORAGEVALUEARRAY
26 
Row()27   Row() : mNumCols(0) {}
28 
29   /**
30    * Initializes the object with the given statement.  Copies the values from
31    * the statement.
32    *
33    * @param aStatement
34    *        The sqlite statement to pull results from.
35    */
36   nsresult initialize(sqlite3_stmt *aStatement);
37 
38 private:
~Row()39   ~Row() {}
40 
41   /**
42    * The number of columns in this tuple.
43    */
44   uint32_t mNumCols;
45 
46   /**
47    * Stores the data in the tuple.
48    */
49   nsCOMArray<nsIVariant> mData;
50 
51   /**
52    * Maps a given name to a column index.
53    */
54   nsDataHashtable<nsCStringHashKey, uint32_t> mNameHashtable;
55 };
56 
57 } // namespace storage
58 } // namespace mozilla
59 
60 #endif // mozStorageRow_h
61