adapter Comparison Table

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adapter comparison table

Subject have solution have related patterns have references have context have forces have problem has definition is a subtopic of is a kind of is an instance of

design pattern zero or more related design patterns one or more references which indicate who developed or inspired a pattern a context one or more forces a sentence or two explaining the main difficulty being tackled A pattern useful for the design of software 6.1 - Introduction to Patterns pattern

adapter
Rather than directly incorporating the reused class into your inheritance hierarchy, instead incorporate an ŤAdapterť class.
The ŤAdapterťis connected by an association to the reused class, which we will call the ŤAdapteeť.
The polymorphic methods of the ŤAdapterť delegate to methods of the ŤAdapteeť.
The delegate method in the ŤAdapteeť may or may not have the same name as the delegating polymorphic method.
facade, read-only interface, proxy one of the Gang of Four patterns.
You are building an inheritance hierarchy and you want to incorporate into it a class written by somebody else - i.e. you want to reuse an existing class.
Typically the methods of the reused class do not have the same name or argument types as the methods in the hierarchy you are creating.
The reused class is also often already part of its own inheritance hierarchy.
You do not have access to multiple inheritance or you do not want to use it. How do you obtain the power of polymorphism when reusing a class whose methods have the same function but do not have the same signature as the other methods in the hierarchy? A pattern found in class diagrams in which you are able to reuse an 'adaptee' class by providing a class, (the adapter) that delegates to the adaptee 6.8 - The Adapter Pattern design pattern

Subject	have solution	have related patterns	have references	have context	have forces	have problem	has definition	is a subtopic of	is a kind of	is an instance of
design pattern		zero or more related design patterns	one or more references which indicate who developed or inspired a pattern	a context	one or more forces	a sentence or two explaining the main difficulty being tackled	A pattern useful for the design of software	6.1 - Introduction to Patterns	pattern
adapter	Rather than directly incorporating the reused class into your inheritance hierarchy, instead incorporate an ŤAdapterť class. The ŤAdapterťis connected by an association to the reused class, which we will call the ŤAdapteeť. The polymorphic methods of the ŤAdapterť delegate to methods of the ŤAdapteeť. The delegate method in the ŤAdapteeť may or may not have the same name as the delegating polymorphic method.	facade, read-only interface, proxy	one of the Gang of Four patterns.	You are building an inheritance hierarchy and you want to incorporate into it a class written by somebody else - i.e. you want to reuse an existing class. Typically the methods of the reused class do not have the same name or argument types as the methods in the hierarchy you are creating. The reused class is also often already part of its own inheritance hierarchy.	You do not have access to multiple inheritance or you do not want to use it.	How do you obtain the power of polymorphism when reusing a class whose methods have the same function but do not have the same signature as the other methods in the hierarchy?	A pattern found in class diagrams in which you are able to reuse an 'adaptee' class by providing a class, (the adapter) that delegates to the adaptee	6.8 - The Adapter Pattern		design pattern

Next design pattern: antipattern Up: design pattern Previous design pattern: abstraction-occurrence