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MySQL 5.1: Item_func_sec_to_time Class Reference

Item_func_sec_to_time Class Reference

#include <item_timefunc.h>

Inheritance diagram for Item_func_sec_to_time:

[legend]Collaboration diagram for Item_func_sec_to_time:

[legend]List of all members.


Public Member Functions
	Item_func_sec_to_time (Item *item)
double	val_real ()
longlong	val_int ()
String *	val_str (String *)
void	fix_length_and_dec ()
enum_field_types	field_type () const
const char *	func_name () const
Field *	tmp_table_field (TABLE *table)
bool	result_as_longlong ()
bool	check_partition_func_processor (byte *bool_arg)

Detailed Description

Definition at line 629 of file item_timefunc.h.

Constructor & Destructor Documentation

Item_func_sec_to_time::Item_func_sec_to_time ( Item * item ) [inline]

Definition at line 632 of file item_timefunc.h.

00632 :Item_str_func(item) {}

Member Function Documentation

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

Reimplemented from Item.

Definition at line 654 of file item_timefunc.h.

00654 { return 0;}

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

Reimplemented from Item.

Definition at line 647 of file item_timefunc.h.

References MYSQL_TYPE_TIME.

00647 { return MYSQL_TYPE_TIME; }

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

Implements Item_result_field.

Definition at line 640 of file item_timefunc.h.

References Item::collation, DATETIME_DEC, Item::decimals, Item::max_length, MAX_TIME_WIDTH, Item::maybe_null, my_charset_bin, MY_CHARSET_BIN_MB_MAXLEN, and DTCollation::set().

00641   { 
00642     collation.set(&my_charset_bin);
00643     maybe_null=1;
00644     decimals= DATETIME_DEC;
00645     max_length=MAX_TIME_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
00646   }

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

Implements Item_func.

Definition at line 648 of file item_timefunc.h.

00648 { return "sec_to_time"; }

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

Reimplemented from Item.

Definition at line 653 of file item_timefunc.h.

References TRUE.

00653 { return TRUE; }

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

Reimplemented from Item_func.

Definition at line 649 of file item_timefunc.h.

References Item::tmp_table_field_from_field_type().

00650   {
00651     return tmp_table_field_from_field_type(table, 0);
00652   }

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longlong Item_func_sec_to_time::val_int ( ) [virtual]

Reimplemented from Item_str_func.

Definition at line 1577 of file item_timefunc.cc.

References Item_func::args, DBUG_ASSERT, Item::fixed, Item::null_value, and Item::val_int().

Referenced by val_real(), and val_str().

01578 {
01579   DBUG_ASSERT(fixed == 1);
01580   longlong seconds=args[0]->val_int();
01581   longlong sign=1;
01582   if ((null_value=args[0]->null_value))
01583     return 0;
01584   if (seconds < 0)
01585   {
01586     seconds= -seconds;
01587     sign= -1;
01588   }
01589   return sign*((seconds / 3600)*10000+((seconds/60) % 60)*100+ (seconds % 60));
01590 }

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

Reimplemented from Item_str_func.

Definition at line 633 of file item_timefunc.h.

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

00634   {
00635     DBUG_ASSERT(fixed == 1);
00636     return (double) Item_func_sec_to_time::val_int();
00637   }

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String * Item_func_sec_to_time::val_str ( String * ) [virtual]

Implements Item.

Definition at line 1546 of file item_timefunc.cc.

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

01547 {
01548   DBUG_ASSERT(fixed == 1);
01549   longlong seconds=(longlong) args[0]->val_int();
01550   uint sec;
01551   TIME ltime;
01552 
01553   if ((null_value=args[0]->null_value) || str->alloc(19))
01554   {
01555     null_value= 1;
01556     return (String*) 0;
01557   }
01558 
01559   ltime.neg= 0;
01560   if (seconds < 0)
01561   {
01562     seconds= -seconds;
01563     ltime.neg= 1;
01564   }
01565 
01566   sec= (uint) ((ulonglong) seconds % 3600);
01567   ltime.day= 0;
01568   ltime.hour= (uint) (seconds/3600);
01569   ltime.minute= sec/60;
01570   ltime.second= sec % 60;
01571 
01572   make_time((DATE_TIME_FORMAT *) 0, &ltime, str);
01573   return str;
01574 }

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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 21:42:08 2006 for MySQL 5.1 by

1.4.7

The world's most popular open source database

Item_func_sec_to_time Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation