89 words
createEntityManagerFactory(persistenceUnitName, properties) - JPA Persistence's static method
Static Methodjavax.persistence.Persistence
EntityManagerFactory createEntityManagerFactory(
String persistenceUnitName,
Map properties
)
Create and return an EntityManagerFactory for the named persistence unit
using the given properties.
- Parameters:
persistenceUnitName- the name of the persistence unitproperties- Additional properties to use when creating the factory. The values of these properties override any values that may have been configured elsewhere.
- Returns:
- the factory that creates EntityManagers configured according to the specified persistence unit.
- Since:
- JPA 1.0
This documentation page is derived (with some adjustments) from the open source JPA 2 RI (EclipseLink)
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0.
Object Relational Mapping (ORM) JPA 2 providers include Hibernate, EclipseLink, TopLink, OpenJPA and DataNucleus.
Object DB is not an ORM JPA implementation but an Object Database for Java with built in JPA 2 support.
Which JPA is Faster?
See a comparison of Hibernate, EclipseLink, OpenJPA, DataNucleus, MySQL, PostgreSQL, Derby, HSQLDB, DB4O by Versant, H2 Database, SQLite and ObjectDB
in the JPA Benchmark.
