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Viewing changes to plugin/schema_engine/schema.h

  • Committer: Monty Taylor
  • Date: 2009-03-04 02:48:12 UTC
  • mto: (917.1.2 mordred)
  • mto: This revision was merged to the branch mainline in revision 918.
  • Revision ID: mordred@inaugust.com-20090304024812-5wb6wpye5c1iitbq
Applied atomic patch to current tree.

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plugin/schema_engine/schema.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) 2010 Brian Aker
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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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#ifndef PLUGIN_SCHEMA_ENGINE_SCHEMA_H
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#define PLUGIN_SCHEMA_ENGINE_SCHEMA_H
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#include <assert.h>
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#include <drizzled/plugin/storage_engine.h>
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#include <boost/unordered_map.hpp>
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#include <boost/thread/shared_mutex.hpp>
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extern const drizzled::CHARSET_INFO *default_charset_info;
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static const char *schema_exts[] = {
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  NULL
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};
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class Schema : public drizzled::plugin::StorageEngine
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{
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  bool writeSchemaFile(const drizzled::SchemaIdentifier &schema_identifier, const drizzled::message::Schema &db);
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  bool readSchemaFile(const drizzled::SchemaIdentifier &schema_identifier, drizzled::message::Schema &schema);
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  void prime();
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  typedef boost::unordered_map<std::string, drizzled::message::schema::shared_ptr> SchemaCache;
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  SchemaCache schema_cache;
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  bool schema_cache_filled;
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  boost::shared_mutex mutex;
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public:
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  Schema();
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  ~Schema();
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  drizzled::Cursor *create(drizzled::Table &)
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  {
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    return NULL;
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  }
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  void doGetSchemaIdentifiers(drizzled::SchemaIdentifier::vector &set_of_names);
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  bool doGetSchemaDefinition(const drizzled::SchemaIdentifier&, drizzled::message::schema::shared_ptr &proto);
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  bool doCreateSchema(const drizzled::message::Schema &schema_message);
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  bool doAlterSchema(const drizzled::message::Schema &schema_message);
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  bool doDropSchema(const drizzled::SchemaIdentifier&);
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  // Below are table methods that we don't implement (and don't need)
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  int doGetTableDefinition(drizzled::Session&,
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                           const drizzled::TableIdentifier&,
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                           drizzled::message::Table&)
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  {
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    return ENOENT;
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  }
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  bool doDoesTableExist(drizzled::Session&, const drizzled::TableIdentifier&)
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  {
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    return false;
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  }
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  int doRenameTable(drizzled::Session&, const drizzled::TableIdentifier&, const drizzled::TableIdentifier&)
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  {
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    return EPERM;
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  }
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  int doCreateTable(drizzled::Session&,
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                    drizzled::Table&,
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                    const drizzled::TableIdentifier&,
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                    drizzled::message::Table&)
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  {
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    return EPERM;
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  }
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  int doDropTable(drizzled::Session&, const drizzled::TableIdentifier&)
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  {
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    return 0;
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  }
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  const char **bas_ext() const 
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  {
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    return schema_exts;
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  }
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  void get_auto_increment(uint64_t, uint64_t,
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                          uint64_t,
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                          uint64_t *,
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                          uint64_t *)
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  {}
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  void doGetTableIdentifiers(drizzled::CachedDirectory &directory,
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                             const drizzled::SchemaIdentifier &schema_identifier,
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                             drizzled::TableIdentifier::vector &set_of_identifiers);
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};
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#endif /* PLUGIN_SCHEMA_ENGINE_SCHEMA_H */