storage/aaLoadEntity.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2007 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <abstract/aacore.h>
  23
  24 #include "nsCOMPtr.h"
  25 #include "nsIMutableArray.h"
  26 #include "nsComponentManagerUtils.h"
  27 #include "nsStringAPI.h"
  28 #include "nsEmbedString.h"
  29
  30 /* Unfrozen API */
  31 #include "unstable/mozIStorageConnection.h"
  32 #include "unstable/mozIStorageStatement.h"
  33
  34 /* Project includes */
  35 #include <abstract/base/aaIEntity.h>
  36 #include <abstract/storage/aaILoadQuery.h>
  37 #include "aaLoadEntity.h"
  38
  39 #define AA_LOADENTITY_SELECT_QUERY "SELECT id,tag FROM entity"
  40
  41 aaLoadEntity::aaLoadEntity(nsISupports *aOuter)
  42   :aaLoadQuery(aOuter)
  43 {
  44 }
  45
  46 aaLoadEntity::~aaLoadEntity()
  47 {
  48 }
  49
  50 NS_IMPL_ISUPPORTS_INHERITED0(aaLoadEntity,
  51                              aaLoadQuery)
  52
  53 /* Virtual methods */
  54 const char*
  55 aaLoadEntity::getSelectQuery() const
  56 {
  57   return AA_LOADENTITY_SELECT_QUERY;
  58 }
  59
  60 aaIDataNode*
  61 aaLoadEntity::fetchRow()
  62 {
  63   nsresult rv;
  64   PRInt64 id;
  65   rv = mStatement->GetInt64(0, &id);
  66   if (NS_FAILED(rv))
  67     return nsnull;
  68
  69   nsEmbedCString tag;
  70   rv = mStatement->GetUTF8String(1, tag);
  71   if (NS_FAILED(rv))
  72     return nsnull;
  73
  74   aaIEntity* entity;
  75   CallCreateInstance("@aasii.org/base/entity;1", nsnull, &entity);
  76   if (! entity)
  77     return nsnull;
  78
  79   entity->SetId(id);
  80   entity->SetTag(NS_ConvertUTF8toUTF16(tag));
  81
  82   return entity;
  83 }
  84