Get Started
This guide covers the basic steps to integrate Litebridge into a Java project, from setting up dependencies to performing your first database operations.
1. Requirements
- Java 21+: Leveraging modern features like records and pattern matching.
- Maven: For dependency management and build automation.
2. Add Litebridge
Add the core ORM dependency to your pom.xml:
<dependency>
<groupId>org.litebridgedb</groupId>
<artifactId>litebridge-orm</artifactId>
<version>0.4.0</version>
</dependency>3. Choose a Provider
Include the artifact for your target database. Litebridge supports the following providers:
H2
litebridge-db-h2PostgreSQL
litebridge-db-postgresOracle
litebridge-db-oracleSQLite
litebridge-db-sqliteExample for PostgreSQL:
<dependency>
<groupId>org.litebridgedbdb</groupId>
<artifactId>litebridge-db-postgres</artifactId>
<version>0.4.0</version>
</dependency>4. Define an Entity
Map your Java classes to database tables using Litebridge annotations:
import org.litebridge.orm.annotation.Column;
import org.litebridge.orm.annotation.Table;
@Table("EXAMPLE.PERSON")
public class Person {
@Column(value = "ID", generateUsingSequence = "PERSON_SEQ")
private Long id;
@Column("NAME")
private String name;
@Column("SURNAME")
private String surname;
// Getters and setters
}Note: The Litebridge Maven plugin can automatically generate these entities from your database schema.
Plain, unaltered DTOs can also be used; see the Litebridge documentation for more details.
5. Initialize
Create a Litebridge instance and register your entities:
// Create a litebridgedb instance
Litebridge litebridge = new Litebridge(new PostgresDatabaseProvider(), dataSource);
// Register your entities
litebridge.register(Person.class);6. Persistence & Queries
You are now ready to save and retrieve data using Litebridge's fluent API:
// Save an entity
litebridge.save(person);
// Query data
Optional<Person> alice = litebridge.select(Person.class)
.where("name").eq("Alice")
.first();