DesignPatterns_ElementsofReusableObject-.epub

Creational Patterns Abstract Factory ( 87 ) Provide an interface for creating families of related or dependent objects without specifying their concrete classes. Builder ( 97 ) Separate the construction of a complex object from its representation so that the same construction process can create different representations. Factory Method ( 107 ) Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses. Prototype ( 117 ) Specify the kinds of objects to create using a prototypical instance, and create new objects by copying this prototype. Singleton ( 127 ) Ensure a class only has one instance, and provide a global point of access to it. Structural Patterns Adapter ( 139 ) Convert the interface of a class into another interface clients expect. Adapter lets classes work together that couldn’t otherwise because of incompatible interfaces. Bridge ( 151 ) Decouple an abstraction from its implementation so that the two can vary independently. Composite ( 163 ) Compose objects into tree structures to represent part- whole hierarchies. Composi......