Field_time Class Reference

Inheritance diagram for Field_time:

List of all members.

Public Member Functions
	Field_time (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg)
	Field_time (bool maybe_null_arg, const char *field_name_arg)
enum_field_types	type () const
enum ha_base_keytype	key_type () const
type_conversion_status	store_packed (longlong nr)
type_conversion_status	reset (void)
longlong	val_int (void)
longlong	val_time_temporal ()
bool	get_time (MYSQL_TIME *ltime)
int	cmp (const uchar *, const uchar *)
void	make_sort_key (uchar *buff, uint length)
uint32	pack_length () const
void	sql_type (String &str) const
bool	zero_pack () const
Field_time *	clone (MEM_ROOT *mem_root) const
Field_time *	clone () const
Protected Member Functions
type_conversion_status	store_internal (const MYSQL_TIME *ltime, int *error)

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Member Function Documentation

Field_time* Field_time::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_time* Field_time::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.

void Field_time::make_sort_key	(	uchar *	buff,
		uint	length
	)		[virtual]

Writes a copy of the current value in the record buffer, suitable for sorting using byte-by-byte comparison. Integers are always in big-endian regardless of hardware architecture. At most length bytes are written into the buffer.

Parameters:

buff	The buffer, assumed to be at least length bytes.
length	Number of bytes to write.

Implements Field.

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

Low-level function to store MYSQL_TIME value. The value must be rounded or truncated according to decimals().

Implements Field_time_common.

type_conversion_status Field_time::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.

longlong Field_time::val_time_temporal

(

)

[virtual]

Returns TIME 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.

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

• field.h
• field.cc