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837
by Brian Aker
Reworked some classes out of session.h |
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright (C) 2008 Sun Microsystems
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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 General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef DRIZZLED_SELECT_RESULT_H
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#define DRIZZLED_SELECT_RESULT_H
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class select_result :public Sql_alloc { |
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protected: |
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Session *session; |
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848
by Brian Aker
typdef class removal (just... use the name of the class). |
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Select_Lex_Unit *unit; |
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837
by Brian Aker
Reworked some classes out of session.h |
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public: |
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select_result() |
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{
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session= current_session; |
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}
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virtual ~select_result() {}; |
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virtual int prepare(List<Item> &, |
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848
by Brian Aker
typdef class removal (just... use the name of the class). |
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Select_Lex_Unit *u) |
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837
by Brian Aker
Reworked some classes out of session.h |
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{
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unit= u; |
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return 0; |
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}
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/*
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Because of peculiarities of prepared statements protocol
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we need to know number of columns in the result set (if
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there is a result set) apart from sending columns metadata.
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*/
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virtual uint32_t field_count(List<Item> &fields) const |
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{ return fields.elements; } |
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virtual bool send_fields(List<Item> &list, uint32_t flags)=0; |
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virtual bool send_data(List<Item> &items)=0; |
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virtual bool initialize_tables (JOIN *) |
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{ return 0; } |
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virtual bool send_eof()=0; |
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virtual void abort() {} |
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void set_session(Session *session_arg) { session= session_arg; } |
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void begin_dataset() {} |
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/*****************************************************************************
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** Functions to provide a interface to select results
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*****************************************************************************/
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virtual void send_error(uint32_t errcode, const char *err) |
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{
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my_message(errcode, err, MYF(0)); |
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}
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/*
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Cleanup instance of this class for next execution of a prepared
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statement/stored procedure.
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*/
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virtual void cleanup() |
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{
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/* do nothing */
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}
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};
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#endif /* DRIZZLED_SELECT_RESULT_H */ |