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sys_var_collation is now abstract class

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Two separate classes sys_var_client_collation and sys_var_literal_collation have been added
for "literal_collation" and "client_collation" variables.
This commit is contained in:
bar@bar.mysql.r18.ru
2003-04-07 16:10:27 +05:00
parent e0caf3f225
commit e165845d39
11 changed files with 113 additions and 62 deletions
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28
sql/set_var.h
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@ -406,20 +406,36 @@ public:
};
class sys_var_client_collation :public sys_var_thd
class sys_var_collation :public sys_var_thd
{
public:
sys_var_client_collation(const char *name_arg) :sys_var_thd(name_arg)
{}
sys_var_collation(const char *name_arg) :sys_var_thd(name_arg) {}
bool check(THD *thd, set_var *var);
bool update(THD *thd, set_var *var);
SHOW_TYPE type() { return SHOW_CHAR; }
byte *value_ptr(THD *thd, enum_var_type type);
SHOW_TYPE type() { return SHOW_CHAR; }
bool check_update_type(Item_result type)
{
return type != STRING_RESULT; /* Only accept strings */
}
bool check_default(enum_var_type type) { return 0; }
virtual void set_default(THD *thd, enum_var_type type)= 0;
};
class sys_var_client_collation :public sys_var_collation
{
public:
sys_var_client_collation(const char *name_arg) :sys_var_collation(name_arg) {}
bool update(THD *thd, set_var *var);
void set_default(THD *thd, enum_var_type type);
byte *value_ptr(THD *thd, enum_var_type type);
};
class sys_var_literal_collation :public sys_var_collation
{
public:
sys_var_literal_collation(const char *name_arg) :sys_var_collation(name_arg) {}
bool update(THD *thd, set_var *var);
void set_default(THD *thd, enum_var_type type);
byte *value_ptr(THD *thd, enum_var_type type);
};