Drizzled Public API Documentation

catalog_cache.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/catalog/module.h>
00024 
00025 #include <drizzled/atomics.h>
00026 #include <drizzled/session.h>
00027 
00028 using namespace std;
00029 
00030 namespace plugin {
00031 namespace catalog {
00032 namespace tables {
00033 
00034 Cache::Cache() :
00035   drizzled::plugin::TableFunction("DATA_DICTIONARY", "CATALOG_CACHE")
00036 {
00037   add_field("CATALOG_NAME", drizzled::plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
00038 }
00039 
00040 Cache::Generator::Generator(drizzled::Field **arg) :
00041   drizzled::plugin::TableFunction::Generator(arg)
00042 {
00043 }
00044 
00045 bool Cache::Generator::populate()
00046 {
00047 
00048   drizzled::catalog::Instance::shared_ptr tmp;
00049 
00050   while ((tmp= catalog_generator))
00051   {
00052     // CATALOG_NAME
00053     push(tmp->getName());
00054 
00055     return true;
00056   }
00057 
00058   return false;
00059 }
00060 
00061 } /* namespace tables */
00062 } /* namespace catalog */
00063 } /* namespace plugin */