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/* |
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* query.h |
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* |
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* Copyright (C) 2009 Tim Marston <edam@waxworlds.org> |
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* |
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* This file is part of sqlite3cc (hereafter referred to as "this program"). |
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* See http://www.waxworlds.org/edam/software/sqlite3cc for more information. |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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#ifndef SQLITE3CC_QUERY_H_ |
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#define SQLITE3CC_QUERY_H_ |
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#include <sqlite3cc/basic_statement.h> |
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namespace sqlite |
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{
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class row; |
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class query |
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: |
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public basic_statement |
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{
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//______________________________________________________________________________ |
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// instantiation |
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public: |
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/** |
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* Constructor that provides a database upon which to act and the SQL |
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* query to execute. |
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* @param database a reference to a database |
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* @param sql an SQL statement in UTF-8 |
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*/ |
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explicit query( |
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database &database, |
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const std::string &sql ); |
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/** |
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* Constructor that provides a database upon which to act. |
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* @param database a reference to a database |
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* @param sql an SQL statement in UTF-8 |
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*/ |
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explicit query( |
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database &database ); |
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//______________________________________________________________________________ |
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// public interface |
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public: |
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/** |
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* Prepare an SQL statement. |
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* @param sql an SQL statement in UTF-8 |
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* @returns an sqlite error code |
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* @see sqlite3_prepare_v2() |
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*/ |
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virtual int prepare( |
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const std::string &sql ); |
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/** |
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* Peform a step() and return row object that can be used to retrieve the |
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* results. |
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* @return a row object |
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*/ |
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row step(); |
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/** |
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* Get the number of columns in the result of |
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*/ |
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unsigned int column_count(); |
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}; |
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} // namespace sqlite |
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#endif /* SQLITE3CC_QUERY_H_ */ |