C# CONCEPTS
According to Gang of Four, the Adapter Pattern converts the interfaces of a class into interfaces that the client requires.
In other words, the adapter design pattern helps incompatible interfaces work collectively.
Use Case
Let’s consider an example of two organizations merging; X organization is taking over Y, but while combining code, the interfaces are not compatible. Assume that interface that provides a list of transactions of organization Y is not compatible with X.
So the adapter design pattern helps solve this problem whose implementation is very straightforward.
Prerequisites
- Basic knowledge of OOPS concepts.
- Any programming language knowledge.
The article demonstrates the usage of adapter design patterns using the C# programming language. So, to begin with, C#
Learning Objectives
- How to code using an adapter design pattern?
Getting Started
Let’s create a list of transactions from organization Y that are converted to patterns that the client application of organization X requires. The above class is known as “Adaptee.”
https://gist.github.com/ssukhpinder/aff5f843fcdf5310947db30fbf2886ca
Secondly, let’s create a target interface.
public interface ITransactions{
List<string> GetTransactions();
}
Now finally, let’s implement the adapter class as follows.
https://gist.github.com/ssukhpinder/a76091b2bfc23d8a0ebcbcf2c0a7b68f
After all the above implementations are done, let’s understand how to use the adapter class in a console application.
https://gist.github.com/ssukhpinder/c11c1cea83b055c971e98632567a2962
If you look closely at the below usage, we have used the target interface ITransactions and the adapter class TransAdapter without considering how third-party class OrgYTransactions interfaces look. That’s the power of the adapter design pattern that it converts the interfaces of a class into interfaces that the client requires.
Github Repo
The following repository shows the above use case implementation using an Adapter Design Pattern in the console-based application.
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