I have a tables called employee, skill and employees_skill

Now all the employees skill are maintained in employees_Skill

Now in ui i have option to select or delect employee skill, is there a way if i just pass the employee skills selected it would update employees_Skill automatically.

The way liferay does is messy, like they pass both selected ids and delected ids and then first add the selected ones and remove the deselected ones, shouldnt this be automatic as underlying persistence layer is on hibernate and we just pass objects currently selected and it adds and removes on its own.