Java SE 12 introduces switch expressions, which like all expressions evaluate to a single value, that you can use as statements. Java 12, brings improvement to the switch statement with new capabilities. Some of the key capabilities are arrow case labels, multiple case statements, and return values. In this post, I’ll explain the new switch […]Continue reading
Introduction In this article, we will look at Spring Framework’s support of immutable property binding. We described Spring external configuration in this article and also provided a more detailed article about the Java bean properties binding. In this article, we will demonstrate constructor binding using the merchant account configuration in this article. Constructor binding enables […]Continue reading
Introduction In this article, we explained why we should externalise our application configuration data. We also provided configuration examples that use various methods supported by Spring Boot. Within these methods was the Java bean properties binding but it was less detailed. Therefore in this article, we are going to give more details about using the […]Continue reading
Introduction Situation Most of our applications are supported by external services such as a database server, an SMS gateway, or services such as PayPal. Such services can exist in more than one environment i.e development and production environments. If we want to connect to the production environment we must pass through the development environment first. […]Continue reading
Java 8 introduced a new date and time API defined inside java.time package. The key date and time classes defined in this package are LocalDateTime, LocalDateTime, and OffsetDateTime. OffsetDateTime represents a date-time with an offset. This class stores all date and time fields, to a precision of nanoseconds, as well as the offset from UTC/Greenwich. […]Continue reading
If you need to quickly create a JPA-based repository layer, Spring Data JPA is the right choice. You define your repository interface by extending one of the Spring Data JPA Repository interfaces. At runtime, Spring Data JPA will create your repository implementations with the common CRUD methods. You can then perform CRUD operations without writing […]Continue reading
Java 8 introduced a new date and time API defined inside java.time package. The key date and time classes defined in this package are LocalDateTime, ZonedDateTime, and OffsetDateTime. OffsetDateTime represents a date-time with an offset. This class stores all date and time fields, to a precision of nanoseconds, as well as the offset from UTC/Greenwich. For […]Continue reading
Introduction In this article, we explained how to configure more than one data source in a Spring Boot Application. The source repository for the article uses CircleCI for CI builds. To build the source code, we needed to add a MySQL database for the JUnit integration tests. In this article, we will explain how to […]Continue reading
Docker Compose defines and runs multi-container Docker applications. It lets you create and start all services from a configuration file with a single docker-compose command. In the previous posts on the Docker series, I discussed how to run Spring Boot on Docker, In this post, I will discuss how to dockerize multiple containers that depend […]Continue reading
Modern Enterprise application development using the Spring framework makes use of containerization technology, such as Docker to ship and run applications. Building an application, packaging it, then building the image, and pushing images to an image registry is cumbersome if done manually. In addition, each time you make any changes to the codebase, you need […]Continue reading
