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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Sun Microsystems
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PLUGIN_SCHEMA_DICTIONARY_SCHEMAS_H
#define PLUGIN_SCHEMA_DICTIONARY_SCHEMAS_H
class SchemasTool : public drizzled::plugin::TableFunction
{
public:
SchemasTool();
SchemasTool(const char *schema_arg, const char *table_arg) :
drizzled::plugin::TableFunction(schema_arg, table_arg)
{ }
SchemasTool(const char *table_arg) :
drizzled::plugin::TableFunction("data_dictionary", table_arg)
{ }
class Generator : public drizzled::plugin::TableFunction::Generator
{
drizzled::message::Schema schema;
std::set<std::string> schema_names;
std::set<std::string>::const_iterator schema_iterator;
bool is_schema_primed;
bool is_schema_parsed;
virtual void fill();
virtual bool checkSchema();
public:
Generator(drizzled::Field **arg);
const std::string &schema_name()
{
assert(is_schema_primed);
return is_schema_parsed ? schema.name() : (*schema_iterator);
}
bool populate();
bool nextSchemaCore();
bool nextSchema();
bool isSchemaPrimed()
{
return is_schema_primed;
}
};
Generator *generator(drizzled::Field **arg)
{
return new Generator(arg);
}
};
class SchemaNames : public SchemasTool
{
public:
SchemaNames() :
SchemasTool("SCHEMA_NAMES")
{
add_field("SCHEMA_NAME");
}
class Generator : public SchemasTool::Generator
{
void fill()
{
/* SCHEMA_NAME */
push(schema_name());
}
public:
Generator(drizzled::Field **arg) :
SchemasTool::Generator(arg)
{ }
};
Generator *generator(drizzled::Field **arg)
{
return new Generator(arg);
}
};
#endif /* PLUGIN_SCHEMA_DICTIONARY_SCHEMAS_H */
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