In software engineering, the multiton pattern is a design pattern similar to the singleton, which allows only one instance of a class to be created. The multiton pattern expands on the singleton concept to manage a map of named instances as key-value pairs. Rather than have a single instance per application the multiton pattern instead ensures a single instance per key. Most people and textbooks consider this a singleton pattern.
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- In software engineering, the multiton pattern is a design pattern similar to the singleton, which allows only one instance of a class to be created. The multiton pattern expands on the singleton concept to manage a map of named instances as key-value pairs. Rather than have a single instance per application the multiton pattern instead ensures a single instance per key. Most people and textbooks consider this a singleton pattern. For example, multiton does not appear in Design Patterns, the highly-regarded object-oriented programming text book. An example thread-safe Java implementation follows:
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- In software engineering, the multiton pattern is a design pattern similar to the singleton, which allows only one instance of a class to be created. The multiton pattern expands on the singleton concept to manage a map of named instances as key-value pairs. Rather than have a single instance per application the multiton pattern instead ensures a single instance per key. Most people and textbooks consider this a singleton pattern.
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