mozStorageResultSet.cpp (1359B)
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 #include "mozStorageRow.h" 8 #include "mozStorageResultSet.h" 9 10 namespace mozilla { 11 namespace storage { 12 13 //////////////////////////////////////////////////////////////////////////////// 14 //// ResultSet 15 16 ResultSet::ResultSet() : mCurrentIndex(0) {} 17 18 ResultSet::~ResultSet() { mData.Clear(); } 19 20 nsresult ResultSet::add(mozIStorageRow* aRow) { 21 return mData.AppendObject(aRow) ? NS_OK : NS_ERROR_OUT_OF_MEMORY; 22 } 23 24 /** 25 * Note: This object is only ever accessed on one thread at a time. It it not 26 * threadsafe, but it does need threadsafe AddRef and Release. 27 */ 28 NS_IMPL_ISUPPORTS(ResultSet, mozIStorageResultSet) 29 30 //////////////////////////////////////////////////////////////////////////////// 31 //// mozIStorageResultSet 32 33 NS_IMETHODIMP 34 ResultSet::GetNextRow(mozIStorageRow** _row) { 35 NS_ENSURE_ARG_POINTER(_row); 36 37 if (mCurrentIndex >= mData.Count()) { 38 // Just return null here 39 return NS_OK; 40 } 41 42 NS_ADDREF(*_row = mData.ObjectAt(mCurrentIndex++)); 43 return NS_OK; 44 } 45 46 } // namespace storage 47 } // namespace mozilla