131 lines
2.7 KiB
C++
131 lines
2.7 KiB
C++
/*
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* This file is a part of morm
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2022-2023, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef headerfile_morm_src_select
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#define headerfile_morm_src_select
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namespace morm
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{
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/*
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* additional arguments for Finder::select method
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*/
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class Select
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{
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public:
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enum SelectType
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{
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default_type = 0,
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no_auto_generated_columns = 1,
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with_rows_counter = 2,
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distinct = 4,
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};
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/*
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* type can be a superposition from SelectType values
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*/
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int type;
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Select()
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{
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type = 0;
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}
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Select(const Select & select_type)
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{
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this->type = select_type.type;
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}
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Select(SelectType select_type)
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{
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this->type = static_cast<int>(select_type);
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}
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Select(int type)
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{
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this->type = type;
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}
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Select & operator=(const Select & select_type)
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{
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type = select_type.type;
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return *this;
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}
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Select & operator=(SelectType select_type)
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{
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this->type = static_cast<int>(select_type);
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return *this;
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}
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Select & operator=(int type)
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{
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this->type = type;
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return *this;
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}
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bool is_flag_set(int flag_mask) const
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{
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return (type & flag_mask) != 0;
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}
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bool is_with_rows_counter() const
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{
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return is_flag_set(with_rows_counter);
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}
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bool is_no_auto_generated_columns() const
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{
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return is_flag_set(no_auto_generated_columns);
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}
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bool is_distinct() const
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{
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return is_flag_set(distinct);
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}
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};
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}
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#endif
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