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Design Pattern Combination – Strategy with Factory Method

When we implement certain design patterns, they are usually used in combination with other design pattern. Though we have a catalog of design patterns such as Gang of Four (GoF), we do not have a formal specification which mandates the use of such a design pattern along with its related pattern.

Topics: Java Factory Method Strategy Design Patterns GoF Technology

Introduction to Specification Pattern

Specification pattern has emerged out of “Domain Driven Design” phenomenon. It is first identified and articulated here by Eric Evans and Martin Fowler. Specification Pattern is based on method chaining technique and beautifully uses fluent interfaces. In method chaining, we get desired results by operating over the object through series of methods which returns the same type of object. One of the examples of method chaining is given below,

Topics: Business Rules Microsoft .Net Design Patterns Specification Pattern Technology

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