BukkitEbean

NOTE: This is still experimental and won't be 100% until after Spigot 1.12 drops.

For most of its existence, Bukkit bundled the Ebean ORM for use in its plugins. Starting with Spigot 1.12 (Bukkit commit eb2c1f23e6e), Ebean will no longer be included by default. So if you have an existing plugin that uses Ebean, or wish to use it in a new one, you're left having to bootstrap database connections entirely on your own instead of having it all done for you.

BukkitEbean is a simple library that you can include as a dependency to have this done for you. With some minor additions to your plugin, it will behave as classic Bukkit always did, using the exact same defaults. Plus, you can change every aspect of the database connection by using the exposed Builder methods.

Basic Usage

The simplest way to use BukkitEbean is as follows:

EbeanServer db = new EbeanBuilder(this).setClasses(models).build();

This will instantiate an EbeanServer using the exact default options of older Bukkit versions. In this example, models is a List<Class<?>> of every entity class that will be used as a database model. e.g.:

List<Class<?>> models = new ArrayList<Class<?>>();
models.add(ExampleThing.class);

Now that you have your db reference, you can use it as you always would with the deprecated Bukkit method.

Changing the Defaults

The EbeanBuilder class exposes several methods that can be used to override the default database settings. It works using the "Builder Pattern," so you can chain them. The build() method ends the chain and returns the finished EbeanServer object.

Let's try using a MySQL database instead...

EbeanServer db = new EbeanBuilder(this)
    .setName("MyDatabase")
    .setDriver("com.mysql.jdbc.Driver")
    .setURL("jdbc:mysql://localhost/somedatabase")
    .setCredentials("username", "password")
    .setClasses(models)
    .build();

If all goes well, you'll get the the same sort of EbeanServer back, but it will be connected to a MySQL data source instead.

Maven

Before you can incorporate BukkitEbean into your plugin, you must first build and install it into your local Maven repository:

git clone https://github.com/NerdNu/BukkitEbean.git
cd BukkitEbean
mvn install

Next, make sure you include BukkitEbean as a dependency and then shade it in, being sure to relocate it to prevent future conflicts with other plugins. Your class files' import statements should still reference nu.nerd.BukkitEbean, as Maven will take care of rewriting the relocated paths.

<build>
    <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.4.3</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <relocations>
                                <relocation>
                                    <pattern>nu.nerd.BukkitEbean</pattern>
                                    <shadedPattern>nu.nerd.NerdClanChat.BukkitEbean</shadedPattern>
                                </relocation>
                            </relocations>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
     </plugins>
</build>