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Visitor Design Pattern In Objective C

Visitor design pattern in Objective C to perform operation on elements of an object structure.

Output

ConcreteElementA::Accept()
ConcreteVisitor1::VisitConcreteElementA()
ConcreteElementA::Accept()
ConcreteVisitor2::VisitConcreteElementA()
ConcreteElementB::Accept()
ConcreteVisitor1::VisitConcreteElementB()
ConcreteElementB::Accept()
ConcreteVisitor2::VisitConcreteElementB()


Suresh Kumar Srivastava is founder of online learning site coursegalaxy.com and author of popular books C In Depth, Data Structures Through C In Depth. He has 18+ years experience in industry and worked on architecture and design of multiple products. This article Visitor Design Pattern In Objective C is from his Design Patterns course.