Programming language: Java
License: Apache License 2.0
Tags: ORM     Projects    

ObjectiveSql alternatives and similar libraries

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ObjectiveSQL is an ORM framework in Java based on ActiveRecord pattern, which encourages rapid development and clean, codes with the least, and convention over configuration.

Key Features

  • With one annotation your Class has fully featured capabilities of SQL programming
  • Easy to relational(has_one, has_many and belongs_to) query and paged query
  • Writing SQL expressions(arithmetic, comparison and logical) using Java syntax

Why to choose

  • If your project focuses on data analysis based on relation database, and a lot of arithmetic expressions in SQL statement. ObjectiveSQL will help you write expressions conveniently and safely using Java syntax
  • If you don’t want to write Java codes of database access and various configuration files, ObjectiveSQL's dynamic code generation will help you access the database without coding

Performance(Oracle JMH)



IntelliJ IDEA plugin installation

Preferences/Settings -> Plugins -> Search with "ObjectiveSql" in market -> Install

Maven dependencies
<!-- In standalone -->
<!-- In Spring Boot -->

Refer to the pom.xml for more configuration


ObjectiveSQL provides full example for various databases below, You can open it directly with IntelliJ IDEA as a standalone project. In fact, they are not just examples, but also unit tests of ObjectiveSQL in various databases.

If you want to run without configuration, you can try: SQLite

Others: MySQL, Oracle, MS SQL Server, PostgreSQL, Spring Boot

Simple SQL programming without coding

You define just a JavaBean with one annotation

public class Member {
    private String no;
private String name;
private Integer gender;
private String mobile;
private String otherInfo;

@Relation(relationType = RelationType.HAS_MANY)
private List<Order> orders;


##### Persistence

Member.create(new Member[]{newMember1, newMember2, newMember3}, false);

Member.update(1L, newMember, true);
Member.update("name = 'Smith => Jackson'", "name = ?", "Alice");

Member.destroy("name = ?", "Mary");
Counting and querying
Member.count("id > ?", 1);
Member.queryFirst("id = ?", 1);
Member.query("id > ?", 1);
Paged querying
Page page = Page.create(0, 10);
PagedList<Member> members = Member.pagedQueryAll(page, Member.HAS_MANY_ORDERS);
Relation querying
Member.queryByPrimary(1, Member.HAS_MANY_ORDERS);
Member.queryByName("demo", Member.HAS_MANY_ORDERS);

Complex SQL programming

Order.Table orderTable = Order.asTable();
Select select = new Select();

// In ObjectiveSQL, Java operator can be overloaded
select.project(sum(orderTable.amount) / sum(orderTable.quantity) * 100)
        .where(orderTable.quantity > 30 &&
            orderTable.salesAt.between("2020-10-10 00:00:00", "2020-10-30 23:59:59"))
SELECT SUM(`T0`.`amount`) / SUM(`T0`.`quantity`) * 100
FROM `orders` AS `T0`
WHERE `T0`.`quantity` > 30 AND 
       `T0`.`sales_at` BETWEEN '2020-10-10 00:00:00' AND '2020-10-30 23:59:59')
GROUP BY `T0`.`product_id`

Reference documentation