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MySQL 5.1: store_key Class Reference

store_key Class Reference

#include <sql_select.h>

Inheritance diagram for store_key:

[legend]Collaboration diagram for store_key:

[legend]List of all members.


Public Types
	STORE_KEY_OK
	STORE_KEY_FATAL
	STORE_KEY_CONV
enum	store_key_result { STORE_KEY_OK, STORE_KEY_FATAL, STORE_KEY_CONV }
Public Member Functions
	store_key (THD thd, Field field_arg, char ptr, char null, uint length)
virtual	~store_key ()
virtual enum store_key_result	copy ()=0
virtual const char *	name () const =0
Protected Attributes
Field *	to_field
char *	null_ptr
char	err

Detailed Description

Definition at line 462 of file sql_select.h.

Member Enumeration Documentation

enum store_key::store_key_result

Enumerator:

STORE_KEY_OK
STORE_KEY_FATAL
STORE_KEY_CONV

Definition at line 469 of file sql_select.h.

00469 { STORE_KEY_OK, STORE_KEY_FATAL, STORE_KEY_CONV };

Constructor & Destructor Documentation

store_key::store_key	(	THD *	thd,
		Field *	field_arg,
		char *	ptr,
		char *	null,
		uint	length
	)			`[inline]`

Definition at line 470 of file sql_select.h.

References Field::charset(), Field::field_name, FIELD_TYPE_BLOB, Field::init(), Field::new_key_field(), Field::NONE, st_table::s, Field::table, to_field, and Field::type().

00471     :null_ptr(null),err(0)
00472   {
00473     if (field_arg->type() == FIELD_TYPE_BLOB)
00474     {
00475         /* Key segments are always packed with a 2 byte length prefix */
00476       to_field= new Field_varstring(ptr, length, 2, (uchar*) null, 1, 
00477                                     Field::NONE, field_arg->field_name,
00478                                     field_arg->table->s, field_arg->charset());
00479       to_field->init(field_arg->table);
00480     }
00481     else
00482       to_field=field_arg->new_key_field(thd->mem_root, field_arg->table,
00483                                         ptr, (uchar*) null, 1);
00484   }

Here is the call graph for this function:

virtual store_key::~store_key ( ) [inline, virtual]

Definition at line 485 of file sql_select.h.

00485 {}                      /* Not actually needed */

Member Function Documentation

virtual enum store_key_result store_key::copy ( ) [pure virtual]

Implemented in store_key_field, store_key_item, and store_key_const_item.

virtual const char* store_key::name ( ) const [pure virtual]

Implemented in store_key_field, store_key_item, and store_key_const_item.

Member Data Documentation

char store_key::err [protected]

Definition at line 467 of file sql_select.h.

Referenced by store_key_const_item::copy(), store_key_item::copy(), and store_key_field::copy().

char* store_key::null_ptr [protected]

Definition at line 466 of file sql_select.h.

Field* store_key::to_field [protected]

Definition at line 465 of file sql_select.h.

Referenced by store_key_const_item::copy(), store_key_item::copy(), store_key(), and store_key_field::store_key_field().

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

mysql/src/5.1-dbg/sql/sql_select.h

Generated on Sat Sep 9 23:46:26 2006 for MySQL 5.1 by

1.4.7