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title, category, language, tag
title category language tag
Marker Interface Structural en
Decoupling

Intent

Using empty interfaces as markers to distinguish special treated objects.

Class diagram

alt text

Applicability

Use the Marker Interface pattern when

  • you want to identify the special objects from normal objects (to treat them differently)
  • you want to mark that some object is available for certain sort of operations

Real world examples

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