Ebean ORM is a powerful solution for Java and Kotlin developers, allowing you to simplify database interactions with a multi-level query abstraction system. This blog will guide you through the process of building Ebean ORM from source and troubleshooting common issues along the way. Let’s dive in!

Getting Started with Ebean ORM

Building Ebean ORM requires a few prerequisites and steps. Follow along as we outline everything you need to know for a successful installation.

Prerequisites

• Ensure that JDK 11 or higher is installed on your machine
• Have Maven installed

Building Ebean

To build Ebean from source, perform the following steps:

1. Clone the repository:

git clone git@github.com:ebean-orm/ebean.git

2. Navigate to the directory:

cd ebean

3. Run the Maven clean install command:

mvn clean install

Understanding the Code Structure

Think of Ebean ORM as a multi-tiered building where each floor represents a different level of abstraction for querying your database:

• The top floor is where the high-level ORM queries reside, allowing you to interact with the database in a simplified manner.
• The middle floors provide additional functions such as DTO Queries, SQL, and JDBC, letting you dive deeper into more complex scenarios when necessary.
• The basement allows for raw SQL writing for those special cases when you need to get your hands dirty.

This tiered approach enables developers to work at the highest level of abstraction and drop down to the lower levels as required, ensuring greater flexibility and control.

Key Features of Ebean ORM

• Automated query tuning for improved performance
• Built-in support for database migrations
• Type safe queries with IDE auto-completion
• Support for various database platforms (H2, Postgres, MySQL, etc.)
• 100% test coverage using Docker test containers

Troubleshooting Common Issues

If you encounter problems while building or using Ebean, consider the following troubleshooting steps:

• Ensure you are using the correct version of JDK and Maven.
• If you are using Eclipse IDE, be aware that it may have poor support for Java modules. It is recommended to use IntelliJ IDEA instead.
• For IntelliJ IDEA users, set JUnit to run tests using the classpath. To do this, navigate to Run -> Edit Configurations -> Edit configuration templates -> JUnit -> modify options -> Do not use module-path option.

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Conclusion

Ebean ORM provides a robust solution for database interactions with Java and Kotlin. By understanding the building blocks and utilizing the troubleshooting steps outlined above, you can navigate your way through any challenges that arise. At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.