Drizzled Public API Documentation

show_temporary_tables.cc
00001 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2010 Brian Aker
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00019  */
00020 
00021 #include <config.h>
00022 
00023 #include <plugin/show_dictionary/dictionary.h>
00024 
00025 using namespace std;
00026 using namespace drizzled;
00027 
00028 ShowTemporaryTables::ShowTemporaryTables() :
00029   show_dictionary::Show("SHOW_TEMPORARY_TABLES")
00030 {
00031   add_field("TABLE_SCHEMA");
00032   add_field("TABLE_NAME");
00033   add_field("RECORDS", plugin::TableFunction::NUMBER, 0, false);
00034   add_field("RECORD_LENGTH", plugin::TableFunction::NUMBER, 0, false);
00035   add_field("ENGINE");
00036 }
00037 
00038 ShowTemporaryTables::Generator::Generator(Field **arg) :
00039   show_dictionary::Show::Generator(arg),
00040   session(getSession())
00041 {
00042   table= session.getTemporaryTables();
00043 }
00044 
00045 bool ShowTemporaryTables::Generator::populate()
00046 {
00047   while (table)
00048   {
00049     if (not isWild(table->getShare()->getTableName()))
00050     {
00051       break;
00052     }
00053     table= table->getNext();
00054   }
00055 
00056   if (not table)
00057     return false;
00058 
00059   fill();
00060 
00061   table= table->getNext();
00062 
00063   return true;
00064 }
00065 
00066 void ShowTemporaryTables::Generator::fill()
00067 {
00068   /* TABLE_SCHEMA */
00069   push(table->getShare()->getSchemaName());
00070 
00071   /* TABLE_NAME */
00072   push(table->getShare()->getTableName());
00073 
00074   /* RECORDS */
00075   push(static_cast<uint64_t>(table->getCursor().records()));
00076 
00077   /* RECORD_LENGTH */
00078   push(static_cast<uint64_t>(table->getRecordLength()));
00079 
00080   /* ENGINE */
00081   push(table->getEngine()->getName());
00082 }