Behavioral Patterns
Patterns for organizing control flow, workflows, and collaboration with explicit errors, interfaces, and small units of behavior.
10 published articles in this category
Chain of Responsibility in Go
Build validation and request-processing pipelines with small handlers composed through interfaces.
Command Pattern in Go
Encapsulate operations for queuing, audit history, and undo/redo while keeping Go error handling explicit.
Iterator in Go
Traverse a collection without exposing its internal representation, keeping traversal state separate from the aggregate.
Mediator in Go
Centralize communication between collaborating objects so they depend on a coordinator instead of referencing each other directly.
Memento in Go
Capture and restore object state without exposing internal details so undo and rollback remain explicit and controlled.
Observer in Go
Notify dependent subscribers when state changes so event-driven reactions stay decoupled from the publisher.
State in Go
Change an object’s behavior when its internal state changes by delegating transitions and rules to state-specific types.
Strategy in Go
Encapsulate interchangeable algorithms behind one interface so callers can swap behavior without branching on concrete rules.
Template Method in Go
Define the skeleton of an algorithm once while letting concrete steps vary through narrow hook methods.
Visitor in Go
Add operations across a stable object structure without changing each node type whenever a new operation is introduced.