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MySQL 5.1: Item_datetime_typecast Class Reference

Item_datetime_typecast Class Reference

#include <item_timefunc.h>

Inheritance diagram for Item_datetime_typecast:

[legend]Collaboration diagram for Item_datetime_typecast:

[legend]List of all members.


Public Member Functions
	Item_datetime_typecast (Item *a)
const char *	func_name () const
String *	val_str (String *str)
const char *	cast_type () const
enum_field_types	field_type () const
Field *	tmp_table_field (TABLE *table)
bool	result_as_longlong ()
longlong	val_int ()

Detailed Description

Definition at line 798 of file item_timefunc.h.

Constructor & Destructor Documentation

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

Definition at line 801 of file item_timefunc.h.

00801 :Item_typecast_maybe_null(a) {}

Member Function Documentation

const char* Item_datetime_typecast::cast_type ( ) const [inline, virtual]

Implements Item_typecast.

Definition at line 804 of file item_timefunc.h.

00804 { return "datetime"; }

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

Reimplemented from Item.

Definition at line 805 of file item_timefunc.h.

References MYSQL_TYPE_DATETIME.

00805 { return MYSQL_TYPE_DATETIME; }

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

Implements Item_func.

Definition at line 802 of file item_timefunc.h.

00802 { return "cast_as_datetime"; }

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

Reimplemented from Item.

Definition at line 810 of file item_timefunc.h.

References TRUE.

00810 { return TRUE; }

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

Reimplemented from Item_func.

Definition at line 806 of file item_timefunc.h.

References Item::tmp_table_field_from_field_type().

00807   {
00808     return tmp_table_field_from_field_type(table, 0);
00809   }

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longlong Item_datetime_typecast::val_int ( ) [virtual]

Reimplemented from Item_str_func.

Definition at line 2360 of file item_timefunc.cc.

References DBUG_ASSERT, Item::fixed, Item_func::get_arg0_date(), Item::null_value, and TIME_to_ulonglong_datetime().

02361 {
02362   DBUG_ASSERT(fixed == 1);
02363   TIME ltime;
02364   if (get_arg0_date(&ltime,1))
02365   {
02366     null_value= 1;
02367     return 0;
02368   }
02369 
02370   return TIME_to_ulonglong_datetime(&ltime);
02371 }

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

Reimplemented from Item_typecast.

Definition at line 2346 of file item_timefunc.cc.

References DATE_TIME, DATE_TIME_MICROSECOND, DBUG_ASSERT, Item::fixed, Item_func::get_arg0_date(), make_datetime(), Item::null_value, st_mysql_time::second_part, and TIME_FUZZY_DATE.

02347 {
02348   DBUG_ASSERT(fixed == 1);
02349   TIME ltime;
02350   if (!get_arg0_date(&ltime, TIME_FUZZY_DATE) &&
02351       !make_datetime(ltime.second_part ? DATE_TIME_MICROSECOND : DATE_TIME, 
02352                      &ltime, str))
02353     return str;
02354 
02355   null_value=1;
02356   return 0;
02357 }

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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 21:21:56 2006 for MySQL 5.1 by

1.4.7

The world's most popular open source database

Item_datetime_typecast Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation