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642.1.10
by Lee
move functions from item.cc/item.h to item directory |
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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) 2008 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; version 2 of the License.
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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 DRIZZLED_ITEM_INT_WITH_REF_H
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#define DRIZZLED_ITEM_INT_WITH_REF_H
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/*
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The following class is used to optimize comparing of date and bigint columns
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We need to save the original item ('ref') to be able to call
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ref->save_in_field(). This is used to create index search keys.
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An instance of Item_int_with_ref may have signed or unsigned integer value.
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*/
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class Item_int_with_ref :public Item_int |
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{
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Item *ref; |
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public: |
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Item_int_with_ref(int64_t i, Item *ref_arg, bool unsigned_arg) : |
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Item_int(i), ref(ref_arg) |
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{
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unsigned_flag= unsigned_arg; |
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}
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int save_in_field(Field *field, bool no_conversions) |
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{
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return ref->save_in_field(field, no_conversions); |
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}
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Item *clone_item(); |
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virtual Item *real_item() { return ref; } |
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};
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#endif /* DRIZZLED_ITEM_INT_WITH_REF_H */ |