~drizzle-trunk/drizzle/development

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2008 Sun Microsystems, Inc.

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; version 2 of the License.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <config.h>

#include <drizzled/field/varstring.h>

#include <drizzled/session.h>

#include <drizzled/stored_key.h>

#include <drizzled/table.h>

namespace drizzled {

StoredKey::StoredKey(Session *session,

                     Field *field_arg, 

                     unsigned char *ptr,

                     unsigned char *null, 

                     uint32_t length) :

  null_key(0), 

  null_ptr(null), 

  err(0)

  {

    if (field_arg->type() == DRIZZLE_TYPE_BLOB)

    {

      /*

        Key segments are always packed with a 2 byte length prefix.

        See mi_rkey for details.

      */

      to_field= new Field_varstring(ptr,

                                    length,

                                    2,

                                    null,

                                    1,

                                    field_arg->field_name,

                                    field_arg->charset());

      to_field->init(field_arg->getTable());

    }

    else

    {

      to_field= field_arg->new_key_field(session->mem_root, field_arg->getTable(),

                                         ptr, null, 1);

    }

    to_field->setWriteSet();

  }

StoredKey::store_key_result StoredKey::copy()

{

  store_key_result result;

  Session *session= to_field->getTable()->in_use;

  enum_check_fields saved_count_cuted_fields= session->count_cuted_fields;

  session->count_cuted_fields= CHECK_FIELD_IGNORE;

  result= copy_inner();

  session->count_cuted_fields= saved_count_cuted_fields;

  return result;

}

} /* namespace drizzled */