Field_timestampf Class Reference

Inheritance diagram for Field_timestampf:

List of all members.

Public Member Functions
	Field_timestampf (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_timestampf (bool maybe_null_arg, const char *field_name_arg, uint8 dec_arg)
Field_timestampf *	clone (MEM_ROOT *mem_root) const
Field_timestampf *	clone () const
enum_field_types	type () const
enum_field_types	real_type () const
enum_field_types	binlog_type () const
bool	zero_pack () const
uint32	pack_length () const
virtual uint	pack_length_from_metadata (uint field_metadata)
type_conversion_status	reset ()
type_conversion_status	store_packed (longlong nr)
bool	get_date (MYSQL_TIME *ltime, uint fuzzydate)
void	sql_type (String &str) const
bool	get_timestamp (struct timeval *tm, int *warnings)
virtual type_conversion_status	validate_stored_val (THD *thd)
Static Public Attributes
static const int	PACK_LENGTH = 8
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_timestampf::Field_timestampf	(	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_timestampf constructor

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
share	Table share.
dec_arg	Number of fractional second digits, 0..6.

Field_timestampf::Field_timestampf	(	bool	maybe_null_arg,
		const char *	field_name_arg,
		uint8	dec_arg
	)

Field_timestampf constructor

Parameters:

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

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Member Function Documentation

Field_timestampf* Field_timestampf::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_timestampf* Field_timestampf::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_timestampf::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_timestampf::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.

bool Field_timestampf::get_timestamp	(	struct timeval *	tm,
		int *	warnings
	)		[virtual]

Returns timestamp value in "struct timeval" format. This method is used in "SELECT UNIX_TIMESTAMP(field)" to avoid conversion from timestamp to MYSQL_TIME and back.

Reimplemented from Field.

type_conversion_status Field_timestampf::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_timestampf::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_timestampf::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.

type_conversion_status Field_timestampf::validate_stored_val

(

THD *

thd

)

[virtual]

Validate date value stored in the field.

Now we check whether date value is zero or has zero in date or not and set warning/error message appropriately(depending on the sql_mode).

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