MySQL 8.4.0
Source Code Documentation
Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
Default_object_creation_ctx Class Reference

Default_object_creation_ctx – default implementation of Object_creation_ctx. More...

#include <table.h>

Inheritance diagram for Default_object_creation_ctx:
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Public Member Functions

const CHARSET_INFO * get_client_cs ()
 
const CHARSET_INFO * get_connection_cl ()
 
- Public Member Functions inherited from Object_creation_ctx
Object_creation_ctx * set_n_backup (THD *thd)
 
void restore_env (THD *thd, Object_creation_ctx *backup_ctx)
 
virtual ~Object_creation_ctx ()=default
 

Protected Member Functions

 Default_object_creation_ctx (THD *thd)
 
 Default_object_creation_ctx (const CHARSET_INFO *client_cs, const CHARSET_INFO *connection_cl)
 
Object_creation_ctx * create_backup_ctx (THD *thd) const override
 
void delete_backup_ctx () override
 
void change_env (THD *thd) const override
 
- Protected Member Functions inherited from Object_creation_ctx
 Object_creation_ctx ()=default
 

Protected Attributes

const CHARSET_INFO * m_client_cs
 client_cs stores the value of character_set_client session variable. More...
 
const CHARSET_INFO * m_connection_cl
 connection_cl stores the value of collation_connection session variable. More...
 

Detailed Description

Default_object_creation_ctx – default implementation of Object_creation_ctx.

Constructor & Destructor Documentation

◆ Default_object_creation_ctx() [1/2]

Default_object_creation_ctx::Default_object_creation_ctx ( THD *  thd)
protected

◆ Default_object_creation_ctx() [2/2]

Default_object_creation_ctx::Default_object_creation_ctx ( const CHARSET_INFO *  client_cs,
const CHARSET_INFO *  connection_cl 
)
protected

Member Function Documentation

◆ change_env()

void Default_object_creation_ctx::change_env ( THD *  thd) const
overrideprotectedvirtual

Implements Object_creation_ctx.

◆ create_backup_ctx()

Object_creation_ctx * Default_object_creation_ctx::create_backup_ctx ( THD *  thd) const
overrideprotectedvirtual

Implements Object_creation_ctx.

Reimplemented in Trigger_creation_ctx.

◆ delete_backup_ctx()

void Default_object_creation_ctx::delete_backup_ctx ( )
overrideprotectedvirtual

Implements Object_creation_ctx.

Reimplemented in Trigger_creation_ctx.

◆ get_client_cs()

const CHARSET_INFO * Default_object_creation_ctx::get_client_cs ( )
inline

◆ get_connection_cl()

const CHARSET_INFO * Default_object_creation_ctx::get_connection_cl ( )
inline

Member Data Documentation

◆ m_client_cs

const CHARSET_INFO* Default_object_creation_ctx::m_client_cs
protected

client_cs stores the value of character_set_client session variable.

The only character set attribute is used.

Client character set is included into query context, because we save query in the original character set, which is client character set. So, in order to parse the query properly we have to switch client character set on parsing.

◆ m_connection_cl

const CHARSET_INFO* Default_object_creation_ctx::m_connection_cl
protected

connection_cl stores the value of collation_connection session variable.

Both character set and collation attributes are used.

Connection collation is included into query context, because it defines the character set and collation of text literals in internal representation of query (item-objects).

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