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MySQL 5.1: Item_date Class Reference

Item_date Class Reference

#include <item_timefunc.h>

Inheritance diagram for Item_date:

[legend]Collaboration diagram for Item_date:

[legend]List of all members.


Public Member Functions
	Item_date ()
	Item_date (Item *a)
enum Item_result	result_type () const
enum_field_types	field_type () const
String *	val_str (String *str)
longlong	val_int ()
double	val_real ()
const char *	func_name () const
void	fix_length_and_dec ()
int	save_in_field (Field *to, bool no_conversions)
Field *	tmp_table_field (TABLE *table)
bool	result_as_longlong ()

Detailed Description

Definition at line 346 of file item_timefunc.h.

Constructor & Destructor Documentation

Item_date::Item_date ( ) [inline]

Definition at line 349 of file item_timefunc.h.

00349 :Item_func() {}

Item_date::Item_date ( Item * a ) [inline]

Definition at line 350 of file item_timefunc.h.

00350 :Item_func(a) {}

Member Function Documentation

enum_field_types Item_date::field_type ( ) const [inline, virtual]

Reimplemented from Item.

Definition at line 352 of file item_timefunc.h.

References MYSQL_TYPE_DATE.

00352 { return MYSQL_TYPE_DATE; }

void Item_date::fix_length_and_dec ( ) [inline, virtual]

Implements Item_result_field.

Reimplemented in Item_func_curdate.

Definition at line 357 of file item_timefunc.h.

References Item::collation, Item::decimals, MAX_DATE_WIDTH, Item::max_length, my_charset_bin, MY_CHARSET_BIN_MB_MAXLEN, and DTCollation::set().

00358   { 
00359     collation.set(&my_charset_bin);
00360     decimals=0;
00361     max_length=MAX_DATE_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
00362   }

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const char* Item_date::func_name ( ) const [inline, virtual]

Implements Item_func.

Reimplemented in Item_func_curdate_local, Item_func_curdate_utc, Item_func_from_days, and Item_func_last_day.

Definition at line 356 of file item_timefunc.h.

00356 { return "date"; }

bool Item_date::result_as_longlong ( ) [inline, virtual]

Reimplemented from Item.

Definition at line 368 of file item_timefunc.h.

References TRUE.

00368 { return TRUE; }

enum Item_result Item_date::result_type ( ) const [inline, virtual]

Reimplemented from Item.

Definition at line 351 of file item_timefunc.h.

References STRING_RESULT.

00351 { return STRING_RESULT; }

int Item_date::save_in_field	(	Field *	to,
		bool	no_conversions
	)			`[virtual]`

Reimplemented from Item.

Definition at line 1273 of file item_timefunc.cc.

References Item::get_date(), MYSQL_TIMESTAMP_DATE, set_field_to_null(), and TIME_FUZZY_DATE.

01274 {
01275   TIME ltime;
01276   if (get_date(&ltime, TIME_FUZZY_DATE))
01277     return set_field_to_null(field);
01278   field->set_notnull();
01279   field->store_time(&ltime, MYSQL_TIMESTAMP_DATE);
01280   return 0;
01281 }

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Field* Item_date::tmp_table_field ( TABLE * table ) [inline, virtual]

Reimplemented from Item_func.

Definition at line 364 of file item_timefunc.h.

References Item::tmp_table_field_from_field_type().

00365   {
00366     return tmp_table_field_from_field_type(table, 0);
00367   }

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longlong Item_date::val_int ( ) [virtual]

Implements Item.

Reimplemented in Item_func_curdate.

Definition at line 1284 of file item_timefunc.cc.

References st_mysql_time::day, DBUG_ASSERT, Item::fixed, Item::get_date(), st_mysql_time::month, TIME_FUZZY_DATE, and st_mysql_time::year.

Referenced by val_real().

01285 {
01286   DBUG_ASSERT(fixed == 1);
01287   TIME ltime;
01288   if (get_date(&ltime, TIME_FUZZY_DATE))
01289     return 0;
01290   return (longlong) (ltime.year*10000L+ltime.month*100+ltime.day);
01291 }

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double Item_date::val_real ( void ) [inline, virtual]

Implements Item.

Definition at line 355 of file item_timefunc.h.

References DBUG_ASSERT, Item::fixed, and val_int().

00355 { DBUG_ASSERT(fixed == 1); return (double) val_int(); }

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String * Item_date::val_str ( String * str ) [virtual]

Implements Item.

Reimplemented in Item_func_curdate.

Definition at line 1257 of file item_timefunc.cc.

References String::alloc(), DBUG_ASSERT, Item::fixed, Item::get_date(), make_date(), Item::null_value, and TIME_FUZZY_DATE.

01258 {
01259   DBUG_ASSERT(fixed == 1);
01260   TIME ltime;
01261   if (get_date(&ltime, TIME_FUZZY_DATE))
01262     return (String *) 0;
01263   if (str->alloc(11))
01264   {
01265     null_value= 1;
01266     return (String *) 0;
01267   }
01268   make_date((DATE_TIME_FORMAT *) 0, &ltime, str);
01269   return str;
01270 }

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The documentation for this class was generated from the following files:

mysql/src/5.1-dbg/sql/item_timefunc.h
mysql/src/5.1-dbg/sql/item_timefunc.cc

Generated on Sat Sep 9 21:21:24 2006 for MySQL 5.1 by

1.4.7

The world's most popular open source database

Item_date Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation