Drizzled Public API Documentation

view_column_usage.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 #include <plugin/information_schema_dictionary/dictionary.h>
00023 
00024 using namespace std;
00025 using namespace drizzled;
00026 
00027 ViewColumnUsage::ViewColumnUsage() :
00028   InformationSchema("VIEW_COLUMN_USAGE")
00029 {
00030   add_field("VIEW_CATALOG");
00031   add_field("VIEW_SCHEMA");
00032   add_field("VIEW_NAME");
00033 
00034   add_field("TABLE_CATALOG");
00035   add_field("TABLE_SCHEMA");
00036   add_field("TABLE_NAME");
00037 
00038   add_field("COLUMN_NAME");
00039 }
00040 
00041 void ViewColumnUsage::Generator::fill()
00042 {
00043 }
00044 
00045 bool ViewColumnUsage::Generator::nextCore()
00046 {
00047   return false;
00048 }
00049 
00050 bool ViewColumnUsage::Generator::next()
00051 {
00052   while (not nextCore())
00053   {
00054     return false;
00055   }
00056 
00057   return true;
00058 }
00059 
00060 ViewColumnUsage::Generator::Generator(drizzled::Field **arg) :
00061   InformationSchema::Generator(arg),
00062   is_primed(false)
00063 {
00064 }
00065 
00066 bool ViewColumnUsage::Generator::populate()
00067 {
00068   if (not next())
00069     return false;
00070 
00071   fill();
00072 
00073   return true;
00074 }