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/* |
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* Copyright (C) 2000-2004 Object Oriented Parallel Simulation Engine (OOPSE) project |
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* |
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* Contact: oopse@oopse.org |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public License |
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* as published by the Free Software Foundation; either version 2.1 |
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* of the License, or (at your option) any later version. |
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* All we ask is that proper credit is given for our work, which includes |
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* - but is not limited to - adding the above copyright notice to the beginning |
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* of your source code files, and to any copyright notice that you may distribute |
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* with programs based on this work. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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* |
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*/ |
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|
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/** |
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* @file Vector3.hpp |
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* @author Teng Lin |
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* @date 09/14/2004 |
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* @version 1.0 |
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*/ |
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#ifndef UTIL_GENERICFACTORY_HPP |
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#define UTIL_GENERICFACTORY_HPP |
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#include <map> |
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#include <string> |
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namespace oopse { |
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template<class Product, typename ProductIdentType = std::string, typename Creator = Product* (*)() > |
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class GenericFactory{ |
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public: |
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|
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typedef std::map<ProductIdentType, Creator*> CreatorMapType; |
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typedef GenericFactory<Product, ProductIdentType, Creator> SelfType; |
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static SelfType* getInstance() { |
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if (instance_ == NULL) { |
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instance_ = new GenericFactory<Product, ProductIdentType, Creator>(); |
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} |
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|
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return instance_; |
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} |
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|
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//bool register( const ProductIdentType& id, Creator creator) { |
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|
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//insert method in std::map will return a pair<iterator, bool>. the second |
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//element of this pair indicates whether the result of the operation |
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//return creatorMap_.insert(CreatorMapType::value_type(id, creator)).second; |
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//} |
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|
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bool unregister(const ProductIdentType& id) { |
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|
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return creatorMap_->erase(id) == 1; |
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|
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} |
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|
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bool hasCreator( const ProductIdentType& id ) { |
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CreatorMapType::iterator i; |
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|
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i = creatorMap_.find(id); |
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|
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if (i != creatorMap_.end()) { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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|
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//const std::string toString() { |
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|
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|
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//} |
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|
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Product* createProduct( const ProductIdentType& id ) { |
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CreatorMapType::iterator i; |
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|
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i = creatorMap_.find(id); |
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|
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if (i != creatorMap_.end()) { |
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//call the function to create the product |
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return (i->second)(); |
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} else { |
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return NULL; |
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} |
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} |
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|
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private: |
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GenericFactory(){} |
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static SelfType* instance_; |
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CreatorMapType creatorMap_; |
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}; |
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|
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|
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#define REGISTER_CREATOR(factory, product, id) \ |
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product * create##product() {\ |
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return new product(); \ |
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} |
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|
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}//namespace oopse |
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#endif //UTIL_GENERICFACTORY_HPP |
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|
