Demo of MyBatis and Cockroach DB

This demo is fashioned off of the Cockroach DB demos here: https://www.cockroachlabs.com/docs/v19.2/build-a-java-app-with-cockroachdb.html

The demo shows how to use MyBatis to interact with CockroachDB. The demo is a Spring Boot application and uses the MyBatis Spring Integration to make things easy to configure.

How To Run the Demo

1. Install cockroach: brew install cockroachdb/tap/cockroach

2. Start a Cockroach cluster: cockroach start --insecure

   You could also run CockroachDB constantly in the background with brew services start cockroachdb/tap/cockroach

3. Connect to cockroach shell: cockroach sql --insecure

   If you are running CockroachDB from the command line, you will need to do this in a separate terminal session.

4. Run SQL commands to create the user and database...

   CREATE USER IF NOT EXISTS maxroach;
   CREATE DATABASE bank;
   GRANT ALL ON DATABASE bank TO maxroach;
   \q

5. The application is configured to connect to CockroachDB running locally at the default port (26257). If you have CockroachDB running elsewhere, modify the values in src/main/resources/application.yml appropriately.

6. Run the application: ./gradlew bootRun - you should see the Spring app start, then several messages about database updates. Note that this requires CockroachDB to be running and available as configured in src/main/resources/application.yml

7. You can also run the integration tests with ./gradlew test. This will start CockroachDB in a Docker container and run the tests against that instance. This requires you to have Docker installed, but you do not need to install CockroachDB manually.