ÿØÿàJFIFÿþ ÿÛC       ÿÛC ÿÀÿÄÿÄ"#QrÿÄÿÄ&1!A"2qQaáÿÚ ?Øy,æ/3JæݹÈ߲؋5êXw²±ÉyˆR”¾I0ó2—PI¾IÌÚiMö¯–þrìN&"KgX:Šíµ•nTJnLK„…@!‰-ý ùúmë;ºgµŒ&ó±hw’¯Õ@”Ü— 9ñ-ë.²1<yà‚¹ïQÐU„ہ?.’¦èûbß±©Ö«Âw*VŒ) `$‰bØԟ’ëXÖ-ËTÜíGÚ3ð«g Ÿ§¯—Jx„–’U/ÂÅv_s(Hÿ@TñJÑãõçn­‚!ÈgfbÓc­:él[ðQe 9ÀPLbÃãCµm[5¿ç'ªjglå‡Ûí_§Úõl-;"PkÞÞÁQâ¼_Ñ^¢SŸx?"¸¦ùY騐ÒOÈ q’`~~ÚtËU¹CڒêV  I1Áß_ÿÙ/* Copyright (c) 2008 MySQL AB, 2009 Sun Microsystems, Inc. Use is subject to license terms. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. 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 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 02110-1335 USA */ #ifndef SQL_SIGNAL_H #define SQL_SIGNAL_H /** Sql_cmd_common_signal represents the common properties of the SIGNAL and RESIGNAL statements. */ class Sql_cmd_common_signal : public Sql_cmd { protected: /** Constructor. @param cond the condition signaled if any, or NULL. @param set collection of signal condition item assignments. */ Sql_cmd_common_signal(const sp_condition_value *cond, const Set_signal_information& set) : Sql_cmd(), m_cond(cond), m_set_signal_information(set) {} virtual ~Sql_cmd_common_signal() = default; /** Evaluate each signal condition items for this statement. @param thd the current thread. @param cond the condition to update. @return 0 on success. */ int eval_signal_informations(THD *thd, Sql_condition *cond); /** Raise a SQL condition. @param thd the current thread. @param cond the condition to raise. @return false on success. */ bool raise_condition(THD *thd, Sql_condition *cond); /** The condition to signal or resignal. This member is optional and can be NULL (RESIGNAL). */ const sp_condition_value *m_cond; /** Collection of 'SET item = value' assignments in the SIGNAL/RESIGNAL statement. */ Set_signal_information m_set_signal_information; }; /** Sql_cmd_signal represents a SIGNAL statement. */ class Sql_cmd_signal : public Sql_cmd_common_signal { public: /** Constructor, used to represent a SIGNAL statement. @param cond the SQL condition to signal (required). @param set the collection of signal information to signal. */ Sql_cmd_signal(const sp_condition_value *cond, const Set_signal_information& set) : Sql_cmd_common_signal(cond, set) {} virtual ~Sql_cmd_signal() = default; enum_sql_command sql_command_code() const override { return SQLCOM_SIGNAL; } bool execute(THD *thd) override; }; /** Sql_cmd_resignal represents a RESIGNAL statement. */ class Sql_cmd_resignal : public Sql_cmd_common_signal { public: /** Constructor, used to represent a RESIGNAL statement. @param cond the SQL condition to resignal (optional, may be NULL). @param set the collection of signal information to resignal. */ Sql_cmd_resignal(const sp_condition_value *cond, const Set_signal_information& set) : Sql_cmd_common_signal(cond, set) {} virtual ~Sql_cmd_resignal() = default; enum_sql_command sql_command_code() const override { return SQLCOM_RESIGNAL; } bool execute(THD *thd) override; }; #endif