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MySQL 5.1: Item_direct_view_ref Class Reference

Item_direct_view_ref Class Reference

#include <item.h>

Inheritance diagram for Item_direct_view_ref:

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Collaboration diagram for Item_direct_view_ref:

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List of all members.

Public Member Functions

 Item_direct_view_ref (Name_resolution_context *context_arg, Item **item, const char *table_name_arg, const char *field_name_arg)
 Item_direct_view_ref (THD *thd, Item_direct_ref *item)
bool fix_fields (THD *, Item **)
bool eq (const Item *item, bool binary_cmp) const
virtual Ref_Type ref_type ()

Detailed Description

Definition at line 1980 of file item.h.

Constructor & Destructor Documentation

Item_direct_view_ref::Item_direct_view_ref ( Name_resolution_context *  context_arg,
Item **  item,
const char *  table_name_arg,
const char *  field_name_arg 
) [inline]

Definition at line 1983 of file item.h.

01986     :Item_direct_ref(context_arg, item, table_name_arg, field_name_arg) {}

Item_direct_view_ref::Item_direct_view_ref ( THD *  thd,
Item_direct_ref *  item 
) [inline]

Definition at line 1988 of file item.h.

01989     :Item_direct_ref(thd, item) {}

Member Function Documentation

bool Item_direct_view_ref::eq ( const Item *  item,
bool  binary_cmp 
) const [virtual]

Reimplemented from Item_ref.

Definition at line 5266 of file item.cc.

References DBUG_ASSERT, FALSE, Item::REF_ITEM, Item::type(), and Item_ref::VIEW_REF.

05267 {
05268   if (item->type() == REF_ITEM)
05269   {
05270     Item_ref *item_ref= (Item_ref*) item;
05271     if (item_ref->ref_type() == VIEW_REF)
05272     {
05273       Item *item_ref_ref= *(item_ref->ref);
05274       DBUG_ASSERT((*ref)->real_item()->type() == 
05275                   item_ref_ref->real_item()->type());
05276       return ((*ref)->real_item() == item_ref_ref->real_item());
05277     }
05278   }
05279   return FALSE;
05280 }

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bool Item_direct_view_ref::fix_fields ( THD *  ,
Item **   
) [virtual]

Reimplemented from Item_ref.

Definition at line 5235 of file item.cc.

References DBUG_ASSERT, Item_ref::fix_fields(), Item_ref::ref, and TRUE.

05236 {
05237   /* view fild reference must be defined */
05238   DBUG_ASSERT(*ref);
05239   /* (*ref)->check_cols() will be made in Item_direct_ref::fix_fields */
05240   if (!(*ref)->fixed &&
05241       ((*ref)->fix_fields(thd, ref)))
05242     return TRUE;
05243   return Item_direct_ref::fix_fields(thd, reference);
05244 }

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virtual Ref_Type Item_direct_view_ref::ref_type (  )  [inline, virtual]

Reimplemented from Item_direct_ref.

Definition at line 1993 of file item.h.

References Item_ref::VIEW_REF.

01993 { return VIEW_REF; }

The documentation for this class was generated from the following files:
Generated on Sat Sep 9 21:22:43 2006 for MySQL 5.1 by  doxygen 1.4.7