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/* * Copyright (c) 2015, 2023, Oracle and/or its affiliates. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2.0, * as published by the Free Software Foundation. * * This program is also distributed with certain software (including * but not limited to OpenSSL) that is licensed under separate terms, * as designated in a particular file or component or in included license * documentation. The authors of MySQL hereby grant you an additional * permission to link the program and your derivative works with the * separately licensed software that they have included with MySQL. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License, version 2.0, for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA */ #ifndef _XPL_CALLBACK_COMMAND_DELEGATE_H_ #define _XPL_CALLBACK_COMMAND_DELEGATE_H_ #include "command_delegate.h" #include "ngs/protocol_encoder.h" namespace xpl { class Callback_command_delegate : public Command_delegate { public: struct Field_value { Field_value(); Field_value(const Field_value& other); Field_value(const longlong &num, bool unsign = false); Field_value(const decimal_t &decimal); Field_value(const double num); Field_value(const MYSQL_TIME &time); Field_value(const char *str, size_t length); Field_value& operator=(const Field_value& other); ~Field_value(); union { longlong v_long; double v_double; decimal_t v_decimal; MYSQL_TIME v_time; std::string *v_string; } value; bool is_unsigned; bool is_string; }; struct Row_data { Row_data() {} Row_data(const Row_data& other); Row_data& operator=(const Row_data& other); ~Row_data(); void clear(); std::vector<Field_value*> fields; private: void clone_fields(const Row_data& other); }; typedef ngs::function<Row_data *()> Start_row_callback; typedef ngs::function<bool (Row_data*)> End_row_callback; Callback_command_delegate(); Callback_command_delegate(Start_row_callback start_row, End_row_callback end_row); void set_callbacks(Start_row_callback start_row, End_row_callback end_row); virtual void reset(); virtual enum cs_text_or_binary representation() const { return CS_TEXT_REPRESENTATION; } private: Start_row_callback m_start_row; End_row_callback m_end_row; Row_data *m_current_row; private: virtual int start_row(); virtual int end_row(); virtual void abort_row(); virtual ulong get_client_capabilities(); /****** Getting data ******/ virtual int get_null(); virtual int get_integer(longlong value); virtual int get_longlong(longlong value, uint unsigned_flag); virtual int get_decimal(const decimal_t * value); virtual int get_double(double value, uint32 decimals); virtual int get_date(const MYSQL_TIME * value); virtual int get_time(const MYSQL_TIME * value, uint decimals); virtual int get_datetime(const MYSQL_TIME * value, uint decimals); virtual int get_string(const char * const value, size_t length, const CHARSET_INFO * const valuecs); }; } #endif // _XPL_CALLBACK_COMMAND_DELEGATE_H_