One of the things I love about the Grails environment is that it comes with a handy bootstrap.groovy file. This will run at startup of the Spring container. I frequently use this to setup expected data, or to create test data for integration / functional tests. It can be a very convenient way to seed […]Continue reading
Polyglot Programming Is the practice of programming in multiple programming languages. According to Wikipedia it is – In computing, a polyglot is a computer program or script written in a valid form of multiple programming languages, which performs the same operations or output independent of the programming language used to compile or interpret it. In […]Continue reading
This past week I had a real world use case for using Spring Integration Futures. I was looking into optimizing the checkout experience for a large ecommerce website. Consider what happens in a large scale website when an order is submitted. Typically, you will see a process something like: Validate the place order form information […]Continue reading
One of the things I wish to do on this blog is to show you realistic examples of using the Spring Framework in Enterprise Application Development. The Spring Framework is very popular for building large scale applications. When you build an e-commerce website that might have 50,000 users on it at any given time the […]Continue reading
Introduction Spring 3 introduced the Spring Expression Language (SpEL) which has a syntax similar to Unified EL. It can save you a lot of coding, because you can dynamically assign values at runtime. The folks at Spring, made the Spring Expression Language part of what is considered ‘Spring Core’. Thus, the Spring Expression Language is […]Continue reading
Spring Integration is a very powerful module in the Spring Framework. It was originally inspired by pivotal book in computer science called Enterprise Integration Patterns written by Gregor Hohpe and Bobby Woolf. While the Gang of Four focused their work on software design patterns, Enterprise Integration Patterns is focused on how disparate systems communicate with […]Continue reading
There are several ways of defining Spring Beans in the Spring Framework. Each method has its own advantages and disadvantages. You may be wondering which one should you use. The answer is, it depends. The reality is in a large enterprise Spring project, you will likely encounter a combination of methods in defining Spring Beans. […]Continue reading
Dependency Injection The Spring Framework is literally built around the concept of Dependency Injection. In this post, we’ll take a look at a simple example of Dependency Injection using the Spring Framework. If you want a deeper dive on Dependency Injection and how it works in conjunction with Inversion of Control in the Spring Framework, sign […]Continue reading
This is a simple hello world example using Spring Framework 4. We will use Spring Boot and Spring Initializer to get things kicked off easily. Video Tutorial Follow this quick video tutorial to get a Spring Boot starter project. Step by Step Instructions Get Starter Project from Spring Initializer Step One Go to the Spring […]Continue reading
