/*========================================================================= * * Copyright NumFOCUS * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0.txt * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * *=========================================================================*/ /*========================================================================= * * Portions of this file are subject to the VTK Toolkit Version 3 copyright. * * Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen * * For complete copyright, license and disclaimer of warranty information * please refer to the NOTICE file at the top of the ITK source tree. * *=========================================================================*/ #ifndef itkObjectFactory_h #define itkObjectFactory_h #include "itkObjectFactoryBase.h" namespace itk { /** \class ObjectFactory * \brief Create instances of a class. * * ObjectFactory is a helper class used to created instances of a * class. Object factories are used for instantiation because they allow * run-time replacement of a class with a user-supplied version. For * example, if you wished to replace an algorithm with your own custom * version, or with a hardware-accelerated version, ObjectFactory * can be used to do this. * * This implementation of the object factory is templated and uses RTTI * (Run-Time Type Information) to create the name of the class it is to * instantiate. (The name may include template type parameters, depending * on the class definition.) * * \ingroup ITKSystemObjects * \ingroup ITKCommon */ template class ObjectFactory : public ObjectFactoryBase { public: static typename T::Pointer Create() { LightObject::Pointer ret = CreateInstance(typeid(T).name()); return dynamic_cast(ret.GetPointer()); } }; } // end namespace itk #endif