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Viewing changes to plugin/function_engine/function.cc

  • Committer: Brian Aker
  • Date: 2010-02-14 02:02:48 UTC
  • mfrom: (1273.13.64 fix_is)
  • Revision ID: brian@gaz-20100214020248-bhovaejhz9fmer3q
Merge in data_dictionary.

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plugin/function_engine/function.cc
 
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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) 2010 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; either version 2 of the License, or
 
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 *  (at your option) any later version.
 
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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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#include "config.h"
 
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#include <plugin/function_engine/function.h>
 
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#include <plugin/function_engine/cursor.h>
 
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#include <string>
 
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using namespace std;
 
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using namespace drizzled;
 
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Function::Function(const std::string &name_arg) :
 
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  drizzled::plugin::StorageEngine(name_arg,
 
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                                  HTON_ALTER_NOT_SUPPORTED |
 
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                                  HTON_HAS_DATA_DICTIONARY |
 
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                                  HTON_SKIP_STORE_LOCK |
 
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                                  HTON_TEMPORARY_NOT_SUPPORTED)
 
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{
 
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}
 
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Cursor *Function::create(TableShare &table, memory::Root *mem_root)
 
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{
 
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  return new (mem_root) FunctionCursor(*this, table);
 
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}
 
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int Function::doGetTableDefinition(Session &,
 
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                                     const char *path,
 
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                                     const char *,
 
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                                     const char *,
 
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                                     const bool,
 
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                                     message::Table *table_proto)
 
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{
 
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  string tab_name(path);
 
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  transform(tab_name.begin(), tab_name.end(),
 
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            tab_name.begin(), ::tolower);
 
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  drizzled::plugin::TableFunction *function= getFunction(tab_name);
 
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  if (not function)
 
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  {
 
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    return ENOENT;
 
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  }
 
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  if (table_proto)
 
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  {
 
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    function->define(*table_proto);
 
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  }
 
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  return EEXIST;
 
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}
 
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void Function::doGetTableNames(drizzled::CachedDirectory&, 
 
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                               string &db, 
 
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                               set<string> &set_of_names)
 
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{
 
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  drizzled::plugin::TableFunction::getNames(db, set_of_names);
 
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}
 
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static drizzled::plugin::StorageEngine *function_plugin= NULL;
 
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static int init(drizzled::plugin::Registry &registry)
 
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{
 
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  function_plugin= new(std::nothrow) Function("FunctionEngine");
 
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  if (not function_plugin)
 
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  {
 
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    return 1;
 
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  }
 
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  registry.add(function_plugin);
 
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  return 0;
 
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}
 
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static int finalize(drizzled::plugin::Registry &registry)
 
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{
 
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  registry.remove(function_plugin);
 
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  delete function_plugin;
 
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  return 0;
 
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}
 
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DRIZZLE_DECLARE_PLUGIN
 
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{
 
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  DRIZZLE_VERSION_ID,
 
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  "FunctionEngine",
 
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  "1.0",
 
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  "Brian Aker",
 
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  "Function Engine provides the infrastructure for Table Functions,etc.",
 
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  PLUGIN_LICENSE_GPL,
 
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  init,     /* Plugin Init */
 
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  finalize,     /* Plugin Deinit */
 
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  NULL,               /* status variables */
 
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  NULL,               /* system variables */
 
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  NULL                /* config options   */
 
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}
 
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DRIZZLE_DECLARE_PLUGIN_END;