DataManager is a simple library plugin for Nukkit Minecraft Bedrock core (and forks), that will help you to create and manage your SQL connections with ease.
Nukkit is nuclear-powered server software for Minecraft: Pocket Edition (you can also use PowerNukkit or PowerNukkitX).
Sql2o is small useful framework that makes coding for database easy.
HikariCP is a "zero-overhead" production ready JDBC connection pool. At roughly 130Kb, the library is very light.
Execute 1000 SELECT statements against a DB and map the data returned to a POJO.
| Method | Duration |
|---|---|
Hand coded ResultSet |
15ms |
| Sql2o | 24ms (60% slower) |
If any plugin requires a DataManager, you just need to download and put it in plugins folder. Usually it will be
enough. Also, you can configure some default database settings in config.yml.
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories><dependency>
<groupId>com.github.hteppl</groupId>
<artifactId>DataManager</artifactId>
<version>2.1.0-SNAPSHOT</version>
</dependency>allprojects {
repositories {
maven { url 'https://jitpack.io' }
}
}dependencies {
implementation 'com.github.hteppl:DataManager:2.1.0-SNAPSHOT'
}Default plugin config.yml settings.
# sqlite path settings for method SQLiteDatabase(String database)
sqlite:
# use global folder for saving sqlite tables (near plugins, worlds, etc.) or plugin folder
global: true
# name for folder if "global" is set to true
folder-name: "database"
# mysql settings
mysql:
# default mysql connection properties
properties: "useSSL=false&autoReconnect=true&useUnicode=true&serverTimezone=UTC"
# Hikari connection pool settings (https://github.com/brettwooldridge/HikariCP)
hikari:
auto-commit: true
connection-timeout: 30000
idle-timeout: 600000
keepalive-time: 0
max-lifetime: 1800000
maximum-pool-size: 10Firstly we recommend to read:
Here is very basic example of your MySQL database class:
import me.hteppl.data.database.MySQLDatabase;
import org.sql2o.Connection;
public class MyDatabase extends MySQLDatabase {
public MyDatabase() {
super("host", "database", "user", "password");
// also you can execute your db scheme with
this.executeScheme("CREATE TABLE IF NOT EXISTS ...");
// or use openConnection() method
try (Connection connection = this.openConnection()) {
connection.createQuery("SELECT ...").executeUpdate();
}
// if you need disable auto commit, use beginTransaction() method
try (Connection connection = this.beginTransaction()) {
connection.createQuery("SELECT ...").executeUpdate();
}
}
}or SQLite database class:
import me.hteppl.data.database.SQLiteDatabase;
import org.sql2o.Connection;
public class MyDatabase extends SQLiteDatabase {
public MyDatabase() {
super("database");
// also you can execute your db scheme with
this.executeScheme("CREATE TABLE IF NOT EXISTS ...");
// or use openConnection() method
try (Connection connection = this.openConnection()) {
connection.createQuery("SELECT ...").executeUpdate();
}
// if you need disable auto commit, use beginTransaction() method
try (Connection connection = this.beginTransaction()) {
connection.createQuery("SELECT ...").executeUpdate();
}
}
}After that, you can easily do what you want with your Sql2o connections:
/* import your database class */
public class Main {
public static void main(String[] args) {
MyDatabase db = new MyDatabase();
try (Connection connection = db.openConnection()) {
connection.createQuery("SELECT ...");
}
// also you can execute your db scheme with
db.executeScheme("CREATE TABLE IF NOT EXISTS ...");
}
}
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