src/DAL/Relation.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008 by Sverre Rabbelier                                *
   3  *   sverre@rabbelier.nl                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 3 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include "FieldImpl.h"
  22 #include "KeyImpl.h"
  23 #include "KeyValue.h"
  24 #include "Keys.h"
  25 #include "Relation.h"
  26 #include "SavableManager.h"
  27 #include "TableImpl.h"
  28
  29 Relation::Relation(TableImplPtr table) :
  30 m_table(table),
  31 m_keys(new Keys(table))
  32 {
  33         Assert(table);
  34
  35         m_manager = SavableManager::getnew(table);
  36         bool locked = m_manager->lock();
  37         Assert(locked); // new manager, should always be unlocked
  38 }
  39
  40 Relation::~Relation()
  41 {
  42
  43 }
  44
  45 void Relation::addKey(KeyImplPtr keyimpl, value_type value)
  46 {
  47         Assert(keyimpl);
  48         Assert(value);
  49
  50         KeyValuePtr key(new KeyValue(keyimpl, value));
  51         m_keys->addKey(key);
  52 }
  53
  54 void Relation::addField(FieldImplPtr field, value_type intvalue)
  55 {
  56         Assert(field);
  57
  58         ValuePtr value(new FieldValue(field, intvalue));
  59         m_manager->setValue(value);
  60 }
  61
  62 void Relation::addField(FieldImplPtr field, cstring stringvalue)
  63 {
  64         Assert(field);
  65
  66         ValuePtr value(new FieldValue(field, stringvalue));
  67         m_manager->setValue(value);
  68 }
  69
  70 void Relation::save()
  71 {
  72         m_manager->setKeys(m_keys);
  73         m_manager->save();
  74         m_manager->unlock();
  75 }