MySQL 9.0.0
Source Code Documentation
dd.h
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23
24#ifndef DD__DD_INCLUDED
25#define DD__DD_INCLUDED
26
27namespace dd {
28
29///////////////////////////////////////////////////////////////////////////
30
31// enum type to pass to init() function.
33 DD_INITIALIZE = 1,
38};
39
40/**
41 Initialize data dictionary upon server startup, server startup on old
42 data directory or install data dictionary for the first time.
43
44 @param dd_init - Option for initialization, population or deletion
45 of data dictionary.
46
47 @return false - On success
48 @return true - On error
49*/
50bool init(enum_dd_init_type dd_init);
51
52/**
53 Shuts down the data dictionary instance by deleting
54 the instance of dd::Dictionary_impl* upon server shutdown.
55
56 @return false - On success
57 @return true - If invoked when data dictionary instance
58 is not yet initialized.
59*/
60bool shutdown();
61
62/**
63 Get the data dictionary instance.
64
65 @returns 'Dictionary*' pointer to data dictionary instance.
66 Else returns NULL if data dictionary is not
67 initialized.
68*/
69class Dictionary *get_dictionary();
70
71/**
72 Create a instance of data dictionary object of type X.
73 E.g., X could be 'dd::Table', 'dd::View' and etc.
74
75 @returns Pointer to the newly allocated dictionary object.
76*/
77template <typename X>
79
80///////////////////////////////////////////////////////////////////////////
81
82} // namespace dd
83
84#endif // DD__DD_INCLUDED
The version of the current data dictionary table definitions.
Definition: dictionary_client.h:43
class Dictionary * get_dictionary()
Get the data dictionary instance.
Definition: dd.cc:76
enum_dd_init_type
Definition: dd.h:32
X * create_object()
Create a instance of data dictionary object of type X.
Definition: dd.cc:79
bool shutdown()
Shuts down the data dictionary instance by deleting the instance of dd::Dictionary_impl* upon server ...
Definition: dd.cc:71
bool init(enum_dd_init_type dd_init)
Initialize data dictionary upon server startup, server startup on old data directory or install data ...
Definition: dd.cc:58
#define X(b)
Definition: xcom_base.cc:9161