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MySQL 5.1: Item_func_maketime Class Reference

Item_func_maketime Class Reference

#include <item_timefunc.h>

Inheritance diagram for Item_func_maketime:

[legend]Collaboration diagram for Item_func_maketime:

[legend]List of all members.


Public Member Functions
	Item_func_maketime (Item a, Item b, Item *c)
String *	val_str (String *str)
const char *	func_name () const
enum_field_types	field_type () const
void	fix_length_and_dec ()
Field *	tmp_table_field (TABLE *table)
bool	check_partition_func_processor (byte *bool_arg)

Detailed Description

Definition at line 878 of file item_timefunc.h.

Constructor & Destructor Documentation

Item_func_maketime::Item_func_maketime	(	Item *	a,
		Item *	b,
		Item *	c
	)			`[inline]`

Definition at line 881 of file item_timefunc.h.

00882     :Item_str_func(a, b ,c) {}

Member Function Documentation

bool Item_func_maketime::check_partition_func_processor ( byte * bool_arg ) [inline, virtual]

Reimplemented from Item.

Definition at line 895 of file item_timefunc.h.

00895 { return 0;}

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

Reimplemented from Item.

Definition at line 885 of file item_timefunc.h.

References MYSQL_TYPE_TIME.

00885 { return MYSQL_TYPE_TIME; }

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

Implements Item_result_field.

Definition at line 886 of file item_timefunc.h.

References Item::decimals, Item::max_length, MAX_TIME_WIDTH, and MY_CHARSET_BIN_MB_MAXLEN.

00887   {
00888     decimals=0;
00889     max_length=MAX_TIME_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
00890   }

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

Implements Item_func.

Definition at line 884 of file item_timefunc.h.

00884 { return "maketime"; }

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

Reimplemented from Item_func.

Definition at line 891 of file item_timefunc.h.

References Item::tmp_table_field_from_field_type().

00892   {
00893     return tmp_table_field_from_field_type(table, 0);
00894   }

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

Implements Item.

Definition at line 2689 of file item_timefunc.cc.

References String::alloc(), Item_func::args, DBUG_ASSERT, Item::fixed, st_mysql_time::hour, make_time(), st_mysql_time::minute, st_mysql_time::neg, Item::null_value, st_mysql_time::second, and Item_str_func::val_int().

02690 {
02691   DBUG_ASSERT(fixed == 1);
02692   TIME ltime;
02693 
02694   long hour=   (long) args[0]->val_int();
02695   long minute= (long) args[1]->val_int();
02696   long second= (long) args[2]->val_int();
02697 
02698   if ((null_value=(args[0]->null_value || 
02699                    args[1]->null_value ||
02700                    args[2]->null_value || 
02701                    minute > 59 || minute < 0 || 
02702                    second > 59 || second < 0 ||
02703                    str->alloc(19))))
02704     return 0;
02705 
02706   ltime.neg= 0;
02707   if (hour < 0)
02708   {
02709     ltime.neg= 1;
02710     hour= -hour;
02711   }
02712   ltime.hour=   (ulong) hour;
02713   ltime.minute= (ulong) minute;
02714   ltime.second= (ulong) second;
02715   make_time((DATE_TIME_FORMAT *) 0, &ltime, str);
02716   return str;
02717 }

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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 21:36:54 2006 for MySQL 5.1 by

1.4.7

The world's most popular open source database

Item_func_maketime Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation