List/Grid Tag Archives: Design Patterns

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Loan pattern in Java (a.k.a lender lendee pattern)

This post is about implementing loan pattern in Java. Use Case Implement separation between the code that holds resource from that of accessing it such that the accessing code doesn’t ...
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Fluent Object Creation

Many posts have been written on this subject (overwhelmingly many) but I just wanted to contribute my two-cents and write a short post about how I use the Fluent Object Creation pattern ...
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Using Builder Pattern in JUnit tests

This is not intended to be a heavily technical post. The goal of this post is to give you some guidelines to make your JUnit testing life more easy, to enable you to write complex scenarios ...
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Decorate with decorator design pattern

Decorator pattern is one of the widely used structural patterns. This pattern dynamically changes the functionality of an object at runtime without impacting the existing functionality ...
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Facade Design Pattern – Design standpoint

In our previous article we have described about the Adapter Design Pattern. In today’s article we are going to show about another such Gang of Four Structural patterns. As the name ...
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Gang of Four – Proxy Design Pattern

Proxy is another Structural design pattern which works ‘on behalf of’ or ‘in place of’ another object in order to access the later. When to use this pattern? Proxy pattern is ...
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By your Command – Command design pattern

Command design pattern is one of the widely known design pattern and it falls under the Behavioral Design Pattern (part of Gang of Four). As the name suggests it is related to actions ...
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Prototype Design Pattern: Creating another dolly

It’s really a time consuming process to create objects and also an expensive affair. So we are now on a venture to save both time and money. How do we do that?Anybody remember about ...
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Design Patterns: Mogwai or Gremlins?

The 1994 book Design Patterns: Elements of Reusable Object-Oriented Software introduced many software developers to the concept of ‘a catalog of simple and succinct solutions ...
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Design Best practices using Factory Method Pattern

In the previous Design Pattern example we have explained about a flavor of Factory pattern which is commonly used nowadays. In this session we will understand a more advanced solution ...
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