Did you know ... | Search Documentation: |
![]() | Pack logtalk -- logtalk-3.81.0/examples/design_patterns/creational/factory_method/NOTES.md |
This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2023 Paulo Moura <pmoura@logtalk.org> SPDX-License-Identifier: Apache-2.0
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
http://www.apache.org/licenses/LICENSE-2.0
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.
Design pattern: Factory Method
Description: "Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses."
This pattern can be used with both classes and prototypes.
The sample implementation uses prototypes for simplicity with categories playing a similar role to abstract classes.