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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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* Copyright (C) 2010 Sun Microsystems
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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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* 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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* 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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#include <plugin/function_engine/function.h>
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#include <plugin/function_engine/cursor.h>
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using namespace drizzled;
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static SchemaIdentifier INFORMATION_SCHEMA_IDENTIFIER("INFORMATION_SCHEMA");
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static SchemaIdentifier DATA_DICTIONARY_IDENTIFIER("DATA_DICTIONARY");
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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_SCHEMA_DICTIONARY |
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HTON_SKIP_STORE_LOCK |
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HTON_TEMPORARY_NOT_SUPPORTED),
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information_message(new(message::Schema)),
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data_dictionary_message(new(message::Schema))
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information_message->set_name("information_schema");
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data_dictionary_message->set_collation("utf8_general_ci");
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data_dictionary_message->set_name("data_dictionary");
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data_dictionary_message->set_collation("utf8_general_ci");
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Cursor *Function::create(Table &table)
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return new FunctionCursor(*this, table);
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int Function::doGetTableDefinition(Session &,
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const TableIdentifier &identifier,
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message::Table &table_proto)
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drizzled::plugin::TableFunction *function= getFunction(identifier.getPath());
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function->define(table_proto);
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void Function::doGetSchemaIdentifiers(SchemaIdentifier::vector& schemas)
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schemas.push_back(INFORMATION_SCHEMA_IDENTIFIER);
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schemas.push_back(DATA_DICTIONARY_IDENTIFIER);
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bool Function::doGetSchemaDefinition(const SchemaIdentifier &schema_identifier, message::schema::shared_ptr &schema_message)
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schema_message.reset(new message::Schema); // This should be fixed, we could just be using ones we built on startup.
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if (schema_identifier == INFORMATION_SCHEMA_IDENTIFIER)
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schema_message= information_message;
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else if (schema_identifier == DATA_DICTIONARY_IDENTIFIER)
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schema_message= data_dictionary_message;
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bool Function::doCanCreateTable(const drizzled::TableIdentifier &table_identifier)
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if (static_cast<const SchemaIdentifier&>(table_identifier) == INFORMATION_SCHEMA_IDENTIFIER)
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else if (static_cast<const SchemaIdentifier&>(table_identifier) == DATA_DICTIONARY_IDENTIFIER)
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bool Function::doDoesTableExist(Session&, const TableIdentifier &identifier)
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drizzled::plugin::TableFunction *function= getFunction(identifier.getPath());
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void Function::doGetTableIdentifiers(drizzled::CachedDirectory&,
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const drizzled::SchemaIdentifier &schema_identifier,
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drizzled::TableIdentifier::vector &set_of_identifiers)
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set<std::string> set_of_names;
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drizzled::plugin::TableFunction::getNames(schema_identifier.getSchemaName(), set_of_names);
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for (set<std::string>::iterator iter= set_of_names.begin(); iter != set_of_names.end(); iter++)
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set_of_identifiers.push_back(TableIdentifier(schema_identifier, *iter, drizzled::message::Table::FUNCTION));
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static int init(drizzled::module::Context &context)
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context.add(new Function("FunctionEngine"));
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DRIZZLE_DECLARE_PLUGIN
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"Function Engine provides the infrastructure for Table Functions,etc.",
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init, /* Plugin Init */
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NULL, /* system variables */
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NULL /* config options */
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DRIZZLE_DECLARE_PLUGIN_END;