Liferay Service Builder - Database Persistence

Question

i understand that persistence layer is where you store your data, and that not all data is persisted in the same manner -- some use databases, some use XML, some use a remote service.

What then is (as a verb) Database Persistence? I'm studying Liferay Service Builder and came across a definition that "it automates creation of interfaces and classes for database persistence"

In other words, What is database persistence in the context above in simple plain English!

Answer 1

Lifera service builder generates classes that can be used to do CRUD operations for database entity only. So its referred as database persistence.