source: lemon-0.x/src/work/deba/map_registry.h @ 573:0f6f4eb7abe9

#ifndef MAP_REGISTRY_H
#define MAP_REGISTRY_H

#include <vector>


namespace hugo {
        template <typename G, typename K, typename KIt>
        class MapRegistry;
}

#include "map_base.h"

namespace hugo {

        template <typename G, typename K, typename KIt>
        class MapRegistry {
        public:
                typedef G Graph;
                typedef K Key;
                typedef KIt KeyIt;
        
                typedef MapBase<Graph, Key, KIt> Map;
                friend class Base;
        
        protected:
        
                typedef std::vector<Map*> Container; 
          Container container;

                
        public:
        
                MapRegistry() {}
        
                MapRegistry(const MapRegistry&) {}
                
                MapRegistry& operator=(const MapRegistry&) {
                        for (it = container.begin(); it != container.end(); ++it) {
                                (*it)->destroy();
                                (*it)->graph = 0;
                                (*it)->registry = 0;
                        }
                }
                                
                ~MapRegistry() {
                        typename Container::iterator it;
                        for (it = container.begin(); it != container.end(); ++it) {
                                (*it)->destroy();
                                (*it)->registry = 0;
                                (*it)->graph = 0;
                        }
                }
        
        
        public:
        
                void attach(Map& map) {
                        if (map.registry) {
                                map.registry->detach(map);
                        }
                        container.push_back(&map);
                        map.registry = this;
                        map.registry_index = container.size()-1;
                        map.init();
                } 
        
                void detach(Map& map_base) {
                        map_base.destroy();
                        container.back()->registry_index = map_base.registry_index; 
                        container[map_base.registry_index] = container.back();
                        container.pop_back();
                        map_base.registry = 0;
                        map_base.graph = 0;
                }
        
                
                void add(Key& key) {
                        typename Container::iterator it;
                        for (it = container.begin(); it != container.end(); ++it) {
                                (*it)->add(key);
                        }
                }       
                
                void erase(Key& key) {
                        typename Container::iterator it;
                        for (it = container.begin(); it != container.end(); ++it) {
                                (*it)->erase(key);
                        }
                }

        };

}

#endif