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MySQL 5.1: Item_func_get_format Class Reference

Item_func_get_format Class Reference

#include <item_timefunc.h>

Inheritance diagram for Item_func_get_format:

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[legend]List of all members.


Public Member Functions
	Item_func_get_format (timestamp_type type_arg, Item *a)
String *	val_str (String *str)
const char *	func_name () const
void	fix_length_and_dec ()
void	print (String *str)
Public Attributes
const timestamp_type	type

Detailed Description

Definition at line 936 of file item_timefunc.h.

Constructor & Destructor Documentation

Item_func_get_format::Item_func_get_format	(	timestamp_type	type_arg,
		Item *	a
	)			`[inline]`

Definition at line 940 of file item_timefunc.h.

00941     :Item_str_func(a), type(type_arg)
00942   {}

Member Function Documentation

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

Implements Item_result_field.

Definition at line 945 of file item_timefunc.h.

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

00946   {
00947     maybe_null= 1;
00948     decimals=0;
00949     max_length=17*MY_CHARSET_BIN_MB_MAXLEN;
00950   }

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

Implements Item_func.

Definition at line 944 of file item_timefunc.h.

Referenced by print().

00944 { return "get_format"; }

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void Item_func_get_format::print ( String * str ) [virtual]

Reimplemented from Item_func.

Definition at line 2923 of file item_timefunc.cc.

References String::append(), Item_func::args, DBUG_ASSERT, func_name(), MYSQL_TIMESTAMP_DATE, MYSQL_TIMESTAMP_DATETIME, MYSQL_TIMESTAMP_TIME, Item::print(), STRING_WITH_LEN, and Item_func::type().

02924 {
02925   str->append(func_name());
02926   str->append('(');
02927 
02928   switch (type) {
02929   case MYSQL_TIMESTAMP_DATE:
02930     str->append(STRING_WITH_LEN("DATE, "));
02931     break;
02932   case MYSQL_TIMESTAMP_DATETIME:
02933     str->append(STRING_WITH_LEN("DATETIME, "));
02934     break;
02935   case MYSQL_TIMESTAMP_TIME:
02936     str->append(STRING_WITH_LEN("TIME, "));
02937     break;
02938   default:
02939     DBUG_ASSERT(0);
02940   }
02941   args[0]->print(str);
02942   str->append(')');
02943 }

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

Implements Item.

Definition at line 2889 of file item_timefunc.cc.

References Item_func::args, DBUG_ASSERT, Item::fixed, format(), get_date_time_format_str(), known_date_time_formats, String::length(), my_charset_bin, my_charset_latin1, my_strnncoll, Item::null_value, String::ptr(), String::set(), strlen(), Item_func::type(), and Item::val_str().

02890 {
02891   DBUG_ASSERT(fixed == 1);
02892   const char *format_name;
02893   KNOWN_DATE_TIME_FORMAT *format;
02894   String *val= args[0]->val_str(str);
02895   ulong val_len;
02896 
02897   if ((null_value= args[0]->null_value))
02898     return 0;    
02899 
02900   val_len= val->length();
02901   for (format= &known_date_time_formats[0];
02902        (format_name= format->format_name);
02903        format++)
02904   {
02905     uint format_name_len;
02906     format_name_len= strlen(format_name);
02907     if (val_len == format_name_len &&
02908         !my_strnncoll(&my_charset_latin1, 
02909                       (const uchar *) val->ptr(), val_len, 
02910                       (const uchar *) format_name, val_len))
02911     {
02912       const char *format_str= get_date_time_format_str(format, type);
02913       str->set(format_str, strlen(format_str), &my_charset_bin);
02914       return str;
02915     }
02916   }
02917 
02918   null_value= 1;
02919   return 0;
02920 }

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Member Data Documentation

const timestamp_type Item_func_get_format::type

Definition at line 939 of file item_timefunc.h.

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 21:32:09 2006 for MySQL 5.1 by

1.4.7