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584.4.5
by Monty Taylor
Split out cache_row and type_holder. |
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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_CACHE_ROW_H
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#define DRIZZLED_ITEM_CACHE_ROW_H
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#include <stdint.h> |
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class Item_cache; |
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class Item; |
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class Send_field; |
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class Item_cache_row: public Item_cache |
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{
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Item_cache **values; |
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uint32_t item_count; |
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bool save_array; |
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public: |
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Item_cache_row() |
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:Item_cache(), values(0), item_count(2), save_array(0) {} |
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/*
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'allocate' used only in row transformer, to preallocate space for row
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cache.
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*/
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bool allocate(uint32_t num); |
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/*
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'setup' is needed only by row => it not called by simple row subselect
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(only by IN subselect (in subselect optimizer))
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*/
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bool setup(Item *item); |
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void store(Item *item); |
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void illegal_method_call(const char * method_name); |
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void make_field(Send_field *field); |
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double val_real(); |
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int64_t val_int(); |
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String *val_str(String *val); |
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my_decimal *val_decimal(my_decimal *val); |
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enum Item_result result_type() const; |
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uint32_t cols(); |
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Item *element_index(uint32_t i); |
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Item **addr(uint32_t i); |
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bool check_cols(uint32_t c); |
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bool null_inside(); |
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void bring_value(); |
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void keep_array(); |
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void cleanup(); |
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};
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#endif /* DRIZZLED_ITEM_CACHE_ROW_H */ |