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Field_bit_as_char Class Reference

#include <field.h>

Inheritance diagram for Field_bit_as_char:
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Collaboration diagram for Field_bit_as_char:
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Public Member Functions

 Field_bit_as_char (uchar *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, uchar null_bit_arg, enum utype unireg_check_arg, const char *field_name_arg)
enum ha_base_keytype key_type () const
type_conversion_status store (const char *to, uint length, const CHARSET_INFO *charset)
type_conversion_status store (double nr)
type_conversion_status store (longlong nr, bool unsigned_val)
void sql_type (String &str) const
Field_bit_as_char * clone (MEM_ROOT *mem_root) const
Field_bit_as_char * clone () const
- Public Member Functions inherited from Field_bit
 Field_bit (uchar *ptr_arg, uint32 len_arg, uchar *null_ptr_arg, uchar null_bit_arg, uchar *bit_ptr_arg, uchar bit_ofs_arg, enum utype unireg_check_arg, const char *field_name_arg)
enum_field_types type () const
uint32 key_length () const
uint32 max_data_length () const
uint32 max_display_length ()
Item_result result_type () const
type_conversion_status reset (void)
type_conversion_status store_decimal (const my_decimal *)
double val_real (void)
longlong val_int (void)
String * val_str (String *, String *)
virtual bool str_needs_quotes ()
my_decimal * val_decimal (my_decimal *)
int cmp (const uchar *a, const uchar *b)
int cmp_binary_offset (uint row_offset)
int cmp_max (const uchar *a, const uchar *b, uint max_length)
int key_cmp (const uchar *a, const uchar *b)
int key_cmp (const uchar *str, uint length)
int cmp_offset (uint row_offset)
void get_image (uchar *buff, uint length, const CHARSET_INFO *cs)
void set_image (const uchar *buff, uint length, const CHARSET_INFO *cs)
uint get_key_image (uchar *buff, uint length, imagetype type)
void set_key_image (const uchar *buff, uint length)
void make_sort_key (uchar *buff, uint length)
uint32 pack_length () const
uint32 pack_length_in_rec () const
uint pack_length_from_metadata (uint field_metadata)
uint row_pack_length () const
bool compatible_field_size (uint metadata, Relay_log_info *rli, uint16 mflags, int *order_var)
virtual uchar * pack (uchar *to, const uchar *from, uint max_length, bool low_byte_first)
virtual const uchar * unpack (uchar *to, const uchar *from, uint param_data, bool low_byte_first)
virtual void set_default ()
Field * new_key_field (MEM_ROOT *root, TABLE *new_table, uchar *new_ptr, uchar *new_null_ptr, uint new_null_bit)
void set_bit_ptr (uchar *bit_ptr_arg, uchar bit_ofs_arg)
bool eq (Field *field)
uint is_equal (Create_field *new_field)
void move_field_offset (my_ptrdiff_t ptr_diff)
void hash (ulong *nr, ulong *nr2)
- Public Member Functions inherited from Field
bool has_insert_default_function () const
bool has_update_default_function () const
 Field (uchar *ptr_arg, uint32 length_arg, uchar *null_ptr_arg, uchar null_bit_arg, utype unireg_check_arg, const char *field_name_arg)
 This is used as a table name when the table structure is not set up.
virtual type_conversion_status store_packed (longlong nr)
virtual type_conversion_status store_time (MYSQL_TIME *ltime, uint8 dec)
type_conversion_status store_time (MYSQL_TIME *ltime)
type_conversion_status store (const char *to, uint length, const CHARSET_INFO *cs, enum_check_fields check_level)
virtual longlong val_time_temporal ()
virtual longlong val_date_temporal ()
longlong val_temporal_by_field_type ()
String * val_str (String *str)
String * val_int_as_str (String *val_buffer, my_bool unsigned_flag)
virtual Item_result numeric_context_result_type () const
virtual Item_result cmp_type () const
virtual Item_result cast_to_int_type () const
virtual bool eq_def (Field *field)
virtual int save_field_metadata (uchar *first_byte)
virtual uint32 data_length ()
virtual uint32 sort_length () const
virtual void reset_fields ()
virtual bool get_timestamp (struct timeval *tm, int *warnings)
virtual void store_timestamp (const timeval *tm)
void store_timestamp (my_time_t sec)
void evaluate_insert_default_function ()
void evaluate_update_default_function ()
virtual bool binary () const
virtual bool zero_pack () const
virtual enum_field_types real_type () const
virtual enum_field_types binlog_type () const
int cmp (const uchar *str)
virtual int cmp_binary (const uchar *a, const uchar *b, uint32 max_length=~0L)
virtual uint decimals () const
bool is_temporal () const
bool is_temporal_with_date () const
bool is_temporal_with_time () const
bool is_temporal_with_date_and_time () const
bool is_null (my_ptrdiff_t row_offset=0) const
bool is_real_null (my_ptrdiff_t row_offset=0) const
bool is_null_in_record (const uchar *record) const
void set_null (my_ptrdiff_t row_offset=0)
void set_notnull (my_ptrdiff_t row_offset=0)
bool maybe_null (void) const
bool real_maybe_null (void) const
uint null_offset (const uchar *record) const
uint null_offset () const
void set_null_ptr (uchar *p_null_ptr, uint p_null_bit)
size_t last_null_byte () const
virtual void make_field (Send_field *)
virtual bool optimize_range (uint idx, uint part)
virtual bool can_be_compared_as_longlong () const
virtual void free ()
virtual Field * new_field (MEM_ROOT *root, TABLE *new_table, bool keep_type)
Field * new_key_field (MEM_ROOT *root, TABLE *new_table, uchar *new_ptr)
void move_field (uchar *ptr_arg, uchar *null_ptr_arg, uchar null_bit_arg)
void move_field (uchar *ptr_arg)
longlong val_int_offset (uint row_offset)
longlong val_int (const uchar *new_ptr)
String * val_str (String *str, const uchar *new_ptr)
virtual bool send_binary (Protocol *protocol)
uchar * pack (uchar *to, const uchar *from)
const uchar * unpack (uchar *to, const uchar *from)
virtual uint packed_col_length (const uchar *to, uint length)
virtual uint max_packed_col_length (uint max_length)
uint offset (uchar *record)
void copy_from_tmp (int offset)
uint fill_cache_field (struct st_cache_field *copy)
virtual bool get_date (MYSQL_TIME *ltime, uint fuzzydate)
virtual bool get_time (MYSQL_TIME *ltime)
virtual const CHARSET_INFO * charset (void) const
virtual const CHARSET_INFO * charset_for_protocol (void) const
virtual const CHARSET_INFO * sort_charset (void) const
virtual bool has_charset (void) const
virtual bool match_collation_to_optimize_range () const
virtual enum Derivation derivation (void) const
virtual uint repertoire (void) const
virtual void set_derivation (enum Derivation derivation_arg)
bool set_warning (Sql_condition::enum_warning_level, unsigned int code, int cuted_increment) const
bool check_overflow (int op_result)
bool check_truncated (int op_result)
bool warn_if_overflow (int op_result)
void init (TABLE *table_arg)
longlong convert_decimal2longlong (const my_decimal *val, bool unsigned_flag, bool *has_overflow)
virtual uint32 char_length ()
virtual geometry_type get_geometry_type ()
void dbug_print ()
ha_storage_media field_storage_type () const
void set_storage_type (ha_storage_media storage_type_arg)
column_format_type column_format () const
void set_column_format (column_format_type column_format_arg)
virtual type_conversion_status validate_stored_val (THD *thd)

Additional Inherited Members

- Public Types inherited from Field
enum  utype {
  NONE, DATE, SHIELD, NOEMPTY,
  CASEUP, PNR, BGNR, PGNR,
  YES, NO, REL, CHECK,
  EMPTY, UNKNOWN_FIELD, CASEDN, NEXT_NUMBER,
  INTERVAL_FIELD, BIT_FIELD, TIMESTAMP_OLD_FIELD, CAPITALIZE,
  BLOB_FIELD, TIMESTAMP_DN_FIELD, TIMESTAMP_UN_FIELD, TIMESTAMP_DNUN_FIELD
}
enum  geometry_type {
  GEOM_GEOMETRY = 0, GEOM_POINT = 1, GEOM_LINESTRING = 2, GEOM_POLYGON = 3,
  GEOM_MULTIPOINT = 4, GEOM_MULTILINESTRING = 5, GEOM_MULTIPOLYGON = 6, GEOM_GEOMETRYCOLLECTION = 7
}
enum  imagetype { itRAW, itMBR }
enum  { LAST_NULL_BYTE_UNDEF = 0 }
- Static Public Member Functions inherited from Field
static void * operator new (size_t size) throw ()
static void * operator new (size_t size, MEM_ROOT *mem_root) throw ()
static void operator delete (void *ptr, MEM_ROOT *mem_root)
static void operator delete (void *ptr_arg, size_t size) throw ()
static bool type_can_have_key_part (enum_field_types)
static enum_field_types field_type_merge (enum_field_types, enum_field_types)
static Item_result result_merge_type (enum_field_types)
- Public Attributes inherited from Field_bit
uchar * bit_ptr
uchar bit_ofs
uint bit_len
uint bytes_in_rec
- Protected Member Functions inherited from Field
uchar * pack_int16 (uchar *to, const uchar *from, bool low_byte_first_to)
const uchar * unpack_int16 (uchar *to, const uchar *from, bool low_byte_first_from)
uchar * pack_int24 (uchar *to, const uchar *from, bool low_byte_first_to)
const uchar * unpack_int24 (uchar *to, const uchar *from, bool low_byte_first_from)
uchar * pack_int32 (uchar *to, const uchar *from, bool low_byte_first_to)
const uchar * unpack_int32 (uchar *to, const uchar *from, bool low_byte_first_from)
uchar * pack_int64 (uchar *to, const uchar *from, bool low_byte_first_to)
const uchar * unpack_int64 (uchar *to, const uchar *from, bool low_byte_first_from)
bool field_flags_are_binary ()
- Static Protected Member Functions inherited from Field
static void handle_int16 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to)
static void handle_int24 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to)
static void handle_int32 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to)
static void handle_int64 (uchar *to, const uchar *from, bool low_byte_first_from, bool low_byte_first_to)
- Protected Attributes inherited from Field
uchar * null_ptr

Detailed Description

BIT field represented as chars for non-MyISAM tables.

Todo:
The inheritance relationship is backwards since Field_bit is an extended version of Field_bit_as_char and not the other way around. Hence, we should refactor it to fix the hierarchy order.

Definition at line 3749 of file field.h.

Member Function Documentation

Field_bit_as_char* Field_bit_as_char::clone ( MEM_ROOT *  mem_root) const
inlinevirtual

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_rootMEM_ROOT to use for memory allocation.
Return values
NULLIf memory allocation failed.

Reimplemented from Field_bit.

Definition at line 3761 of file field.h.

Field_bit_as_char* Field_bit_as_char::clone ( ) const
inlinevirtual

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
NULLIf memory allocation failed.

Reimplemented from Field_bit.

Definition at line 3764 of file field.h.

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