Esqueleto

Description

SQL util for Java using HikariCP, to make querying SQL in Java easier.

Maven

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

<dependencies>
    <dependency>
        <groupId>com.github.JustEli.Esqueleto</groupId>
        <artifactId>esqueleto-core</artifactId>
        <version>VERSION</version>
    </dependency>
</dependencies>

Adapters

Adapter	Works?	Esqueleto Version	Adapter Version
MariaDB	✅ Fully	latest (always tested)	2.7.7 (Maven)
MySQL	❌ ResultSet closed
SQLite	❌ Can't select
PostgreSQL	❌ ResultSet closed
MS SQL Server	❌ Untested
H2	❌ Untested

Examples

Open connection

Esqueleto sql = Esqueleto.create(config -> {
    config.setDriver(MariaDBDriver.class);
    // CREATE DATABASE esqueleto_test;
    config.setDatabase("esqueleto_test");
    // CREATE USER 'esqueleto'@'localhost' IDENTIFIED BY 'dAQ5g61NT';
    // GRANT ALL PRIVILEGES ON esqueleto_test.* TO 'esqueleto'@'localhost';
    config.setUsername("esqueleto");
    config.setPassword("dAQ5g61NT");
}).start();

Update

Returns the inserted id of the signature

UUID playerUuid = ...;
byte[] signature = ...;

Optional<Integer> signatureId = sql.statement(
    "INSERT INTO Signature (playerId, signature) VALUES ((SELECT id FROM Player WHERE uniqueId = ?), ?)",
    playerUuid,
    signature
).update().complete(data -> data.next()? data.getInt("id") : null);

Company company = ...;
int transactionAmount = ...;

sql.statement("""
    UPDATE Company SET profit = profit + ?
    WHERE id = ?
    """,
    transactionAmount,
    company.getId()
).update().push();

Select

Player player = ...;

Optional<Long> discordId = sql.statement("""
    SELECT discordId
    FROM Player
    WHERE username = ?
    LIMIT 1
    """,
    player.getUsername()
).query().complete(results -> {
    return results.next()? results.get("discordId") : null;
});

Close

sql.close();