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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
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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_ITEM_COPY_STRING_H
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#define DRIZZLED_ITEM_COPY_STRING_H
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#include <drizzled/item/ident.h>
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#include <drizzled/item/field.h>
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class Item_copy_string :public Item
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enum enum_field_types cached_field_type;
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Item_copy_string(Item *i) :item(i)
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null_value= maybe_null= item->maybe_null;
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decimals=item->decimals;
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max_length=item->max_length;
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cached_field_type= item->field_type();
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enum Type type() const { return COPY_STR_ITEM; }
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enum Item_result result_type () const { return STRING_RESULT; }
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enum_field_types field_type() const { return cached_field_type; }
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return (null_value ? 0.0 :
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my_strntod(str_value.charset(), (char*) str_value.ptr(),
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str_value.length(), &end_not_used, &err_not_used));
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return null_value ? 0 : my_strntoll(str_value.charset(),str_value.ptr(),
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str_value.length(),10, (char**) 0,
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String *val_str(String*);
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my_decimal *val_decimal(my_decimal *);
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void make_field(Send_field *field) { item->make_field(field); }
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int save_in_field(Field *field, bool)
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return save_str_value_in_field(field, &str_value);
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table_map used_tables() const { return (table_map) 1L; }
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bool const_item() const { return 0; }
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bool is_null() { return null_value; }
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class Item_default_value : public Item_field
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Item_default_value(Name_resolution_context *context_arg)
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:Item_field(context_arg, (const char *)NULL, (const char *)NULL,
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Item_default_value(Name_resolution_context *context_arg, Item *a)
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:Item_field(context_arg, (const char *)NULL, (const char *)NULL,
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enum Type type() const { return DEFAULT_VALUE_ITEM; }
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bool eq(const Item *item, bool binary_cmp) const;
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bool fix_fields(Session *, Item **);
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virtual void print(String *str, enum_query_type query_type);
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int save_in_field(Field *field_arg, bool no_conversions);
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table_map used_tables() const { return (table_map)0L; }
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bool walk(Item_processor processor, bool walk_subquery, unsigned char *args)
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return arg->walk(processor, walk_subquery, args) ||
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(this->*processor)(args);
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Item *transform(Item_transformer transformer, unsigned char *args);
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#endif /* DRIZZLED_ITEM_COPY_STRING_H */