CompaniesOrganizationManager

Web application for CRUD organizational structure for parent and child companies.

Try in action:

https://comorg.herokuapp.com/ - it will become active again after a short delay after transition.

Used technologies:

• Java 7
• Spring MVC
• MySQL
• Hibernate 4.2
• Tomcat 8
• Maven
• AngularJS
• Heroku

For build a tree hierarchy in MySQL database, I used a Nested Set Model. It is pretty slow for CRUD operation, but allow to support non-limited nesting levels.