Foreign_key Class Reference

Inheritance diagram for Foreign_key:

List of all members.

Public Types
enum	fk_match_opt { FK_MATCH_UNDEF, FK_MATCH_FULL, FK_MATCH_PARTIAL, FK_MATCH_SIMPLE }
enum	fk_option {   FK_OPTION_UNDEF, FK_OPTION_RESTRICT, FK_OPTION_CASCADE, FK_OPTION_SET_NULL,   FK_OPTION_NO_ACTION, FK_OPTION_DEFAULT }
Public Member Functions
	Foreign_key (const LEX_STRING &name_arg, List< Key_part_spec > &cols, const LEX_STRING &ref_db_arg, const LEX_STRING &ref_table_arg, List< Key_part_spec > &ref_cols, uint delete_opt_arg, uint update_opt_arg, uint match_opt_arg)
	Foreign_key (const Foreign_key &rhs, MEM_ROOT *mem_root)
virtual Key *	clone (MEM_ROOT *mem_root) const
Public Attributes
LEX_STRING	ref_db
LEX_STRING	ref_table
List< Key_part_spec >	ref_columns
uint	delete_opt
uint	update_opt
uint	match_opt

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Constructor & Destructor Documentation

Foreign_key::Foreign_key	(	const Foreign_key &	rhs,
		MEM_ROOT *	mem_root
	)

Construct an (almost) deep copy of this foreign key. Only those elements that are known to never change are not copied. If out of memory, a partial copy is returned and an error is set in THD.

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Member Function Documentation

virtual Key* Foreign_key::clone

(

MEM_ROOT *

mem_root

)

const [inline, virtual]

Used to make a clone of this object for ALTER/CREATE TABLE

See also:

comment for Key_part_spec::clone

Reimplemented from Key.

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

• sql_class.h
• sql_class.cc