diff --git a/include/sqlpp11/offset.h b/include/sqlpp11/offset.h new file mode 100644 index 00000000..370910ad --- /dev/null +++ b/include/sqlpp11/offset.h @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2013, Roland Bock + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT HOLDER OR 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. + */ + +#ifndef SQLPP_OFFSET_H +#define SQLPP_OFFSET_H + +#include +#include +#include + +namespace sqlpp +{ + struct offset_t + { + using _is_offset = tag_yes; + + template + void serialize(std::ostream& os, Db& db) const + { + os << " OFFSET " << _offset; + } + + const std::size_t _offset; + }; + + struct dynamic_offset_t + { + using _is_offset = tag_yes; + using _is_dynamic = tag_yes; + + dynamic_offset_t(): + _offset(0) + {} + dynamic_offset_t(const dynamic_offset_t&) = default; + dynamic_offset_t(dynamic_offset_t&&) = default; + dynamic_offset_t& operator=(const dynamic_offset_t&) = default; + dynamic_offset_t& operator=(dynamic_offset_t&&) = default; + ~dynamic_offset_t() = default; + + void set(std::size_t offset) + { + _offset = offset; + } + + template + void serialize(std::ostream& os, Db& db) const + { + if (_offset > 0) + os << " OFFSET " << _offset; + } + + std::size_t _offset = 0; + }; + +} + +#endif