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Viewing changes to drizzled/function/func.h

  • Committer: Brian Aker
  • Date: 2010-06-22 01:08:50 UTC
  • mto: This revision was merged to the branch mainline in revision 1635.
  • Revision ID: brian@gaz-20100622010850-eh2gi2i0e1kp0jye
Put a copy of the Session in the root of function to make use of.

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drizzled/function/func.h
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#include <drizzled/item.h>
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#include <drizzled/sql_list.h>
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#include <drizzled/item/bin_string.h>
 
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#include "drizzled/current_session.h"
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namespace drizzled
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{
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class Item_func :public Item_result_field
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{
 
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  Session &_session;
 
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protected:
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  Item **args, *tmp_arg[2];
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  /*
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  enum Type type() const { return FUNC_ITEM; }
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  virtual enum Functype functype() const   { return UNKNOWN_FUNC; }
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  virtual ~Item_func() {}
 
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  Item_func(void):
 
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    _session(*current_session),
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    allowed_arg_cols(1), arg_count(0)
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  {
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    with_sum_func= 0;
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  }
 
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  Item_func(Item *a):
 
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    _session(*current_session),
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    allowed_arg_cols(1), arg_count(1)
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  {
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    args= tmp_arg;
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    args[0]= a;
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    with_sum_func= a->with_sum_func;
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  }
 
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  Item_func(Item *a,Item *b):
 
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    _session(*current_session),
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    allowed_arg_cols(1), arg_count(2)
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  {
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    args= tmp_arg;
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    args[0]= a; args[1]= b;
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    with_sum_func= a->with_sum_func || b->with_sum_func;
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  }
 
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  Item_func(Item *a,Item *b,Item *c):
 
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    _session(*current_session),
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    allowed_arg_cols(1)
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  {
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    arg_count= 0;
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      with_sum_func= a->with_sum_func || b->with_sum_func || c->with_sum_func;
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    }
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  }
 
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  Item_func(Item *a,Item *b,Item *c,Item *d):
 
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    _session(*current_session),
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    allowed_arg_cols(1)
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  {
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    arg_count= 0;
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        c->with_sum_func || d->with_sum_func;
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    }
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  }
 
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  Item_func(Item *a,Item *b,Item *c,Item *d,Item* e):
 
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    _session(*current_session),
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    allowed_arg_cols(1)
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  {
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    arg_count= 5;
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        c->with_sum_func || d->with_sum_func || e->with_sum_func ;
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    }
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  }
 
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  Item_func(List<Item> &list);
 
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  // Constructor used for Item_cond_and/or (see Item comment)
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  Item_func(Session *session, Item_func *item);
 
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  bool fix_fields(Session *, Item **ref);
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  void fix_after_pullout(Select_Lex *new_parent, Item **ref);
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  table_map used_tables() const;
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                     void * arg, traverse_order order);
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  double fix_result(double value);
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  Session &getSession()
 
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  {
 
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    return _session;
 
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  }
 
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  Session *getSessionPtr()
 
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  {
 
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    return &_session;
 
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  }
 
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};
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} /* namespace drizzled */