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Design Pattern (23) Observer Pattern: Smart Security System One-to-Many Notification Mechanism, Implementing Real-time Alert Broadcasting
In-depth exploration of Observer Pattern core principles, through smart security system alert mechanism examples, learn how to construct loosely-coupled one-to-many notification systems, improving system extensibility and maintainability.
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Design Pattern (22) Memento Pattern: Implementing Text Editor Undo Functionality, Perfect Encapsulation of Object State Snapshots
In-depth analysis of Memento Pattern core principles, through text editor undo functionality examples, learn how to safely save and restore object states, implementing complete state management systems.
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Design Pattern (21) Mediator Pattern: Smart Home System Component Coordination, Reducing Complex Coupling Relationships Between Objects
Comprehensive analysis of Mediator Pattern design principles, through smart home control system examples, learn how to elegantly coordinate complex interactions between multiple objects, implementing low-coupling high-cohesion system architecture.
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Design Pattern (20) Iterator Pattern: Unified Data Traversal Interface, Elegant Access to Multiple Collection Structures
Detailed exploration of Iterator Pattern design essence, through music playlist management examples, learn how to build unified traversal interfaces, hiding collection internal structure complexity.
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Design Pattern (19) Command Pattern: Smart Home Remote Control System, Implementing Operation Encapsulation and Undo Mechanism
In-depth analysis of Command Pattern core concepts, through smart home remote control example, learn how to encapsulate operation requests as objects, implement undo functionality and operation history management.