Drizzled Public API Documentation

drizzled::Create_func_arg0 Class Reference
Inheritance diagram for drizzled::Create_func_arg0:
drizzled::Create_func drizzled::Create_func_found_rows drizzled::Create_func_pi drizzled::Create_func_row_count

List of all members.

Public Member Functions

virtual Itemcreate (Session *session, LEX_STRING name, List< Item > *item_list)
virtual Itemcreate (Session *session)=0

Protected Member Functions

 Create_func_arg0 ()
virtual ~Create_func_arg0 ()

Detailed Description

Adapter for functions that takes exactly zero arguments.

Definition at line 140 of file create.cc.


Constructor & Destructor Documentation

drizzled::Create_func_arg0::Create_func_arg0 ( ) [inline, protected]

Constructor.

Definition at line 154 of file create.cc.

virtual drizzled::Create_func_arg0::~Create_func_arg0 ( ) [inline, protected, virtual]

Destructor.

Definition at line 156 of file create.cc.


Member Function Documentation

Item * drizzled::Create_func_arg0::create ( Session session,
LEX_STRING  name,
List< Item > *  item_list 
) [virtual]

The builder create method. Given the function name and list or arguments, this method creates an Item that represents the function call. In case or errors, a NULL item is returned, and an error is reported. Note that the session object may be modified by the builder. In particular, the following members/methods can be set/called, depending on the function called and the function possible side effects.

  • session->lex().binlog_row_based_if_mixed
  • session->lex().current_context()
  • session->lex().safe_to_cache_query
  • session->lex().uncacheable(UNCACHEABLE_SIDEEFFECT)
  • session->lex().uncacheable(UNCACHEABLE_RAND)
  • session->lex().add_time_zone_tables_to_query_tables(session)
Parameters:
sessionThe current thread
nameThe function name
item_listThe list of arguments to the function, can be NULL
Returns:
An item representing the parsed function call, or NULL

Implements drizzled::Create_func.

Definition at line 1118 of file create.cc.

virtual Item* drizzled::Create_func_arg0::create ( Session session) [pure virtual]

Builder method, with no arguments.

Parameters:
sessionThe current thread
Returns:
An item representing the function call

Implemented in drizzled::Create_func_found_rows, drizzled::Create_func_pi, and drizzled::Create_func_row_count.


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