GitHub - JavaWebStack/orm: Object Relational Mapping Framework of JavaWebStack (former AJORM)

JWS Object Relational Mapping

Introduction

When it came to using an ORM Lib in java I used ORMLite before. It worked quite well, but I didn't like the query builder.

Another thing was that I wanted to have control over the JDBC Wrapper to have a simple way of implementing an auto-reconnect function, if it gets disconnected for some reason.

I finally decided to make an own ORM that fits my needs and here it is.

Documentation

You can find the current docs on our website. This is a work-in-progress project though so it's not yet complete.

Example usage

Model

@Dates @SoftDelete
class User extends Model {
  @Column
  int id;
  @Column
  String name;
  @Column
  Timestamp createdAt;
  @Column
  Timestamp updatedAt;
  @Column
  Timestamp deletedAt;
}

Usage

//Create connection, initialize repos
SQL sql = new MySQL("localhost",3306,"mydb","myuser","changeme1234");
ORMConfig config = new ORMConfig().setDefaultSize(255); //optional
Repo<User> repo = ORM.register(User.class, sql, config);

//Create the table if it doesn't exist (optional)
repo.migrate();

//Print all usernames
for(User user : Repo.get(User.class).all()){
    System.out.println(user.name);
}

Maven

Dependency

<dependency>
    <groupId>org.javawebstack</groupId>
    <artifactId>orm</artifactId>
    <version>1.0.1</version>
</dependency>

Driver

You also need to add the driver you want to use. JavaWebStack ORM comes with a wrapper for com.mysql.jdbc.Driver, but you can also create an own wrapper implementing the interface SQL.

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.27</version>
    <scope>compile</scope>
</dependency>