Hibernate entitymanager implements the programming interfaces and lifecycle rules as defined by the ejb3 persistence specification. together with hibernate annotations this wrapper implements a complete (and standalone) ejb3 persistence solution on top of the mature hibernate core. you may use a combination of all three together, annotations without ejb3 programming interfaces and lifecycle, or even pure native hibernate, depending on the business and technical needs of your project. you can at all times fall back to hibernate native apis, or if required, even to native jdbc and sql.

it includes:
* the standard java persistence management api
* the standard java persistence query language
* the standard java persistence object lifecycle rules
* the standard java persistence configuration and packaging