WvStreams
catiter.cc
00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
00002  *
00003  * XPLC - Cross-Platform Lightweight Components
00004  * Copyright (C) 2004, Net Integration Technologies, Inc.
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public License
00008  * as published by the Free Software Foundation; either version 2.1 of
00009  * the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful, but
00012  * WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with this library; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00019  * USA
00020  */
00021 
00022 #include <xplc/utils.h>
00023 #include "catiter.h"
00024 
00025 UUID_MAP_BEGIN(CategoryIterator)
00026   UUID_MAP_ENTRY(IObject)
00027   UUID_MAP_ENTRY(ICategoryIterator)
00028   UUID_MAP_END
00029 
00030 CategoryIterator::CategoryIterator(ICategory* aCategory,
00031                                    CategoryEntryNode* aEntries):
00032   category(aCategory),
00033   current(aEntries) {
00034   /*
00035    * Prevent the category from dying, which in turn prevents the
00036    * category manager from dying (which would free the list).
00037    */
00038   category->addRef();
00039 }
00040 
00041 const UUID& CategoryIterator::getUuid() {
00042   if(current)
00043     return current->entry;
00044 
00045   return UUID_null;
00046 }
00047 
00048 const char* CategoryIterator::getString() {
00049   if(current)
00050     return current->str;
00051 
00052   return 0;
00053 }
00054 
00055 void CategoryIterator::next() {
00056   if(current)
00057     current = current->next;
00058 }
00059 
00060 bool CategoryIterator::done() {
00061   return current == 0;
00062 }
00063 
00064 CategoryIterator::~CategoryIterator() {
00065   category->release();
00066 }
00067