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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) 2008 Sun Microsystems, Inc.
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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; version 2 of the License.
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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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#ifndef DRIZZLED_FUNCTION_GET_SYSTEM_VAR_H
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#define DRIZZLED_FUNCTION_GET_SYSTEM_VAR_H
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#include <drizzled/function/func.h>
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#include <drizzled/lex_string.h>
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Item *get_system_var(Session *session, sql_var_t var_type, LEX_STRING name,
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LEX_STRING component);
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/* A system variable */
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class Item_func_get_system_var :public Item_func
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Item_func_get_system_var(sys_var *var_arg, sql_var_t var_type_arg,
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LEX_STRING *component_arg, const char *name_arg,
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bool fix_fields(Session *session, Item **ref);
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Stubs for pure virtual methods. Should never be called: this
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item is always substituted with a constant in fix_fields().
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double val_real() { assert(0); return 0.0; }
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int64_t val_int() { assert(0); return 0; }
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String* val_str(String*) { assert(0); return 0; }
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void fix_length_and_dec() { assert(0); }
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/* TODO: fix to support views */
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const char *func_name() const { return "get_system_var"; }
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} /* namespace drizzled */
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#endif /* DRIZZLED_FUNCTION_GET_SYSTEM_VAR_H */