Programming Patterns - Decorator - script for MetaTrader 5

Programming Patterns – Decorator – script MetaTrader 5

by

 • Inheritance is not always flexible.
 • Composition and delegation is sometimes a good alternative to dynamically add new behavior.
 • Decorator type matches component type.
 • Decorators change component behavior without changing the component code.
 • A component may have arbitrary number of decorators.

 • Decorators are transparent to the client, unless the client depends on a particular component.

RULE: Open classes for extension and close for changes.

      Programming Patterns – Decorator – script MetaTrader 5
      📈 ROBOTFX MetaTrader Expert Advisors and Indicators to maximize profits and minimize the risks
      Alternative:  "Tic Tac Toe" chart - script MetaTrader 4

      Similar MetaTrader Trading Tools:

      • Programming Patterns - Factory Method - script for MetaTrader 5
        Programming Patterns - Factory Method - script MetaTrader 5         Programming Patterns - Factory Method - script MetaTrader 5
      • Programming Patterns - Abstract Factory - script for MetaTrader 5
        Programming Patterns - Abstract Factory - script…         Many architectures start with Factory method, then evolve to AF, Prototype, Builder Builder makes complex objects step-by-step. AF makes families…
      • Programming Patterns - Observer - script for MetaTrader 5
        Programming Patterns - Observer - script MetaTrader 5         Subjects update observers through interface. Subjects knows nothing about the observers (one-to-many weak relation). New data can be broadcast by…
      • Programming Patterns - Strategy - script for MetaTrader 5
        Programming Patterns - Strategy - script MetaTrader 5         A good architecture is extendable, supportable, and reusable. Patterns help build hq systems. Patterns are proven to be good by…
      • Programming patterns - Facade - library for MetaTrader 5
        Programming patterns - Facade - library MetaTrader 5         /**************************************************************** Programming patterns - Facade Provide a unified interface to a set of interfaces in a subsystem. Facade defines a…
      • Programming patterns - Composite - library for MetaTrader 5
        Programming patterns - Composite - library MetaTrader 5         /**************************************************************** Programming patterns: Composite pattern Compose objects into tree structures to represent part-whole hierarchies. Composite lets clients treat individual objects…
      • Decorator - structural design pattern - library for MetaTrader 5
        Decorator - structural design pattern - library MetaTrader 5         //+------------------------------------------------------------------+ //|                                                    Decorator.mqh | //|                                    2019-2020, dimitri pecheritsa | //|                                                 792112@gmail.com | //+------------------------------------------------------------------+ //| decorator < structural design pattern                            | //+------------------------------------------------------------------+ //   design…
      • Programming Patters - Builder (classic) - script for MetaTrader 5
        Programming Patters - Builder (classic) - script…         /*********************************************************************                                                            MQL5 Script                                                 Copyright 2019, dmipec                                                       792112@gmail.com Classic Builder Programming Pattern    This pattern was published in the "Design…