Drizzled Public API Documentation

size.h
1 /* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
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3  *
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19  */
20 
21 #pragma once
22 
23 #include <drizzled/field/num.h>
24 
25 namespace drizzled
26 {
27 namespace field
28 {
29 
30 class Size :public Field_num {
31 public:
32 
33  using Field::val_int;
34  using Field::val_str;
35  using Field::cmp;
36  using Field::store;
37  using Field::pack;
38  using Field::unpack;
39 
40  Size(unsigned char *ptr_arg, uint32_t len_arg,
41  unsigned char *null_ptr_arg,
42  unsigned char null_bit_arg,
43  enum utype unireg_check_arg,
44  const char *field_name_arg);
45 
46  Size(uint32_t len_arg,bool maybe_null_arg,
47  const char *field_name_arg,
48  bool unsigned_arg);
49 
50  enum Item_result result_type () const { return INT_RESULT; }
51  enum_field_types type() const { return DRIZZLE_TYPE_LONGLONG;}
52  enum ha_base_keytype key_type() const
53  { return unsigned_flag ? HA_KEYTYPE_ULONGLONG : HA_KEYTYPE_LONGLONG; }
54  int store(const char *to,uint32_t length, const charset_info_st * const charset);
55  int store(double nr);
56  int store(int64_t nr, bool unsigned_val);
57  int reset(void)
58  {
59  ptr[0]=ptr[1]=ptr[2]=ptr[3]=ptr[4]=ptr[5]=ptr[6]=ptr[7]=0;
60  return 0;
61  }
62  double val_real(void) const;
63  int64_t val_int(void) const;
64  String *val_str(String*,String *) const;
65  int cmp(const unsigned char *,const unsigned char *);
66  void sort_string(unsigned char *buff,uint32_t length);
67  uint32_t pack_length() const { return 8; }
68  bool can_be_compared_as_int64_t() const { return true; }
69  uint32_t max_display_length() { return MY_INT64_NUM_DECIMAL_DIGITS+1; } // +1 for sign
70  virtual unsigned char *pack(unsigned char* to, const unsigned char *from,
71  uint32_t max_length,
72  bool low_byte_first);
73 
74  virtual const unsigned char *unpack(unsigned char* to, const unsigned char *from,
75  uint32_t param_data,
76  bool low_byte_first);
77 
78 };
79 
80 } /* namespace field */
81 } /* namespace drizzled */
82 
TODO: Rename this file - func.h is stupid.
virtual unsigned char * pack(unsigned char *to, const unsigned char *from, uint32_t max_length, bool low_byte_first)
Definition: field.cc:955
virtual unsigned char * pack(unsigned char *to, const unsigned char *from, uint32_t max_length, bool low_byte_first)
Definition: size.cc:240
virtual const unsigned char * unpack(unsigned char *to, const unsigned char *from, uint32_t param_data, bool low_byte_first)
Definition: size.cc:251
virtual const unsigned char * unpack(unsigned char *to, const unsigned char *from, uint32_t param_data, bool low_byte_first)
Definition: field.cc:968
bool can_be_compared_as_int64_t() const
Definition: size.h:68
uint32_t pack_length() const
Definition: size.h:67
unsigned char * ptr
Definition: field.h:71