Field_datetimef Class Reference

Inheritance diagram for Field_datetimef:

List of all members.

Public Member Functions
	Field_datetimef (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg, uint8 dec_arg)
	Field_datetimef (bool maybe_null_arg, const char *field_name_arg, uint8 dec_arg)
Field_datetimef *	clone (MEM_ROOT *mem_root) const
Field_datetimef *	clone () const
enum_field_types	type () const
enum_field_types	real_type () const
enum_field_types	binlog_type () const
uint32	pack_length () const
virtual uint	pack_length_from_metadata (uint field_metadata)
bool	zero_pack () const
type_conversion_status	store_packed (longlong nr)
type_conversion_status	reset ()
longlong	val_date_temporal ()
bool	get_date (MYSQL_TIME *ltime, uint fuzzydate)
void	sql_type (String &str) const
Protected Member Functions
bool	get_date_internal (MYSQL_TIME *ltime)
type_conversion_status	store_internal (const MYSQL_TIME *ltime, int *error)
ulonglong	date_flags (const THD *thd)
void	store_timestamp_internal (const struct timeval *tm)

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Constructor & Destructor Documentation

Field_datetimef::Field_datetimef	(	uchar *	ptr_arg,
		uchar *	null_ptr_arg,
		uchar	null_bit_arg,
		enum utype	unireg_check_arg,
		const char *	field_name_arg,
		uint8	dec_arg
	)		[inline]

Constructor for Field_datetimef

Parameters:

ptr_arg	See Field definition
null_ptr_arg	See Field definition
null_bit_arg	See Field definition
unireg_check_arg	See Field definition
field_name_arg	See Field definition
dec_arg	Number of second fraction digits, 0..6.

Field_datetimef::Field_datetimef	(	bool	maybe_null_arg,
		const char *	field_name_arg,
		uint8	dec_arg
	)		[inline]

Constructor for Field_datetimef

Parameters:

maybe_null_arg	See Field definition
field_name_arg	See Field definition
len_arg	See Field definition
dec_arg	Number of second fraction digits, 0..6.

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Member Function Documentation

Field_datetimef* Field_datetimef::clone

(

MEM_ROOT *

mem_root

)

const [inline, virtual]

Makes a shallow copy of the Field object.

Note:

This member function must be overridden in all concrete subclasses. Several of the Field subclasses are concrete even though they are not leaf classes, so the compiler will not always catch this.

Parameters:

mem_root

MEM_ROOT to use for memory allocation.

Return values:

NULL	If memory allocation failed.

Implements Field.

Field_datetimef* Field_datetimef::clone

(

)

const [inline, virtual]

Makes a shallow copy of the Field object.

Note:

This member function must be overridden in all concrete subclasses. Several of the Field subclasses are concrete even though they are not leaf classes, so the compiler will not always catch this.

Return values:

NULL	If memory allocation failed.

Implements Field.

ulonglong Field_datetimef::date_flags

(

const THD *

thd

)

[protected, virtual]

Flags that are passed as "flag" argument to check_date(), number_to_datetime(), str_to_datetime().

Flags depend on the session sql_mode settings, such as MODE_NO_ZERO_DATE, MODE_NO_ZERO_IN_DATE. Also, Field_newdate, Field_datetime, Field_datetimef add TIME_FUZZY_DATE to the session sql_mode settings, to allow relaxed date format, while Field_timestamp, Field_timestampf do not.

Parameters:

thd

THD

Return values:

sql_mode

flags mixed with the field type flags.

Reimplemented from Field_temporal.

bool Field_datetimef::get_date_internal

(

MYSQL_TIME *

ltime

)

[protected, virtual]

Low level function to get value into MYSQL_TIME, without checking for being valid.

Implements Field_temporal_with_date.

type_conversion_status Field_datetimef::store_internal	(	const MYSQL_TIME *	ltime,
		int *	error
	)		[protected, virtual]

Low level routine to store a MYSQL_TIME value into a field. The value must be already properly rounded or truncated and checked for being a valid TIME/DATE/DATETIME value.

Parameters:

IN	ltime MYSQL_TIME value.
OUT	error Error flag vector, set in case of error.

Return values:

false	In case of success.
true	In case of error.

Implements Field_temporal.

type_conversion_status Field_datetimef::store_packed

(

longlong

nr

)

[virtual]

Store a temporal value in packed longlong format into a field. The packed value is compatible with TIME_to_longlong_time_packed(), TIME_to_longlong_date_packed() or TIME_to_longlong_datetime_packed(). Note, the value must be properly rounded or truncated according according to field->decimals().

Parameters:

nr	temporal value in packed longlong format.

Return values:

false	on success
true	on error

Reimplemented from Field.

void Field_datetimef::store_timestamp_internal

(

const struct timeval *

tm

)

[protected, virtual]

Store "struct timeval" value into field. The value must be properly rounded or truncated according to the number of fractional second digits.

Implements Field_temporal_with_date_and_time.

longlong Field_datetimef::val_date_temporal

(

)

[virtual]

Returns DATE/DATETIME value in packed longlong format. This method should not be called for non-temporal types. Temporal field types override the default method.

Reimplemented from Field_temporal_with_date.

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

• field.h
• field.cc