Behavioral patterns are those which are concerned with interactions between the objects. The interactions between the objects should be such that they are talking to each other and still are loosely coupled. The loose coupling is the key to n-tier architectures. In this, the implementation and the client should be loosely coupled in order to avoid hard-coding and dependencies.
The behavioral patterns...
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Monday, September 17, 2012
JAVA DESIGN PATTERNS - Structural Patterns
Structural Patterns describe how objects and classes can be combined to form larger structures. The difference between class patterns and object patterns is that class patterns describe abstraction with the help of inheritance and how it can be used to provide more useful program interface. Object patterns, on other hand, describe how objects can be associated and composed to form larger, more complex...
JAVA DESIGN PATTERNS - Creational Patterns
All the creational patterns define the best possible way in which an object can be instantiated. Now everyone knows the object instance in Java can be created using a new operator.
Book book = new Book ();
So, what’s the great stuff? Well, that’s true. The new Operator creates the instance of an object, but this is hard-coding. Also, at times the very nature of the object which is created can...
JAVA DESIGN PATTERNS
According to commonly known practices, there are 23 design patterns in Java. These patterns are grouped under three heads:
1. Creational Patterns
2. Structural Patterns
3. Behavioral Patter...