Add it to your project as Maven dependency:

<dependency>
    <groupId>com.ohmdb</groupId>
    <artifactId>ohmdb-all</artifactId>
    <version>1.0.0</version>
</dependency>

Add this code to your project and run it:

import com.ohmdb.api.*;

class Person { public String name; public int age; }

public class Main {
   public static void main(String[] args) {
      Db db = Ohm.db("ohm.db");
      Table<Person> persons = db.table(Person.class);
      Person $p = persons.queryHelper();

      Person p1 = new Person();
      p1.name = "Niko";
      p1.age = 30;
      long id = persons.insert(p1);
      Person p2 = persons.get(id);

      persons.createIndexOn($p.age);
      Person[] adults = persons.where($p.age).gte(18).get();

      db.shutdown();
   }
}

OhmDB vs RDBMS vs NoSQL - No Silver Bullet!

	OhmDB	RDBMS	NoSQL
Data complexity	Unlimited	Unlimited	Limited
Relations	Graph-based	Yes	Graph-based or none
JOINS	Fast	Slow	Fast or none
Transactions	ACID	ACID	Limited
Schema	Strict	Strict	Flexible
Schema migration	Automatic	Manual	Automatic
Agile-friendly	Yes	No	Yes
Data capacity	Limited to RAM	Unlimited	Unlimited
Scale Up	Yes	Yes	Yes
Replication	Not yet	Yes	Yes
Partitioning	Not yet	Yes	Yes

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