Spring 5 Design Patterns

Applying the template pattern to eliminate boilerplate code

At one point in the enterprise application, we saw some code that looked like code we had already written before in the same application. That is actually boilerplate code. It is code that we often have to write again and again in the same application to accomplish common requirements in different parts of the application. Unfortunately, there are a lot of places where Java APIs involve a bunch of boilerplate code. A common example of boilerplate code can be seen when working with JDBC to query data from a database. If you've ever worked with JDBC, you've probably written something in code that deals with the following:

• Retrieving a connection from the connection pool
• Creating a ...