org.springframework.orm.jpa Documentation Differences

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Specify the JDBC DataSource that the JPA persistence provider is supposed to use for accessing the database. This is an alternative to keeping the JDBC configuration in persistence.xml, passing in a Spring-managed DataSource instead.

In JPA speak, a DataSource passed in here will be used as "nonJtaDataSource" on the PersistenceUnitInfo passed to the PersistenceProvider, overriding as well as overriding data source configuration in persistence.xml (if any). Note that this variant typically works for JTA transaction management as well; if it does not, consider using the explicit .setJtaDataSource instead.

NOTE: Only applied if no external PersistenceUnitManager specified. @see javax.persistence.spi.PersistenceUnitInfo#getNonJtaDataSource() @see #setPersistenceUnitManager

Set the PersistenceUnitPostProcessors to be applied to the PersistenceUnitInfo used for creating this EntityManagerFactory.

Such post-processors can, for example, register further entity classes and jar files, in addition to the metadata read in from persistence.xml.

NOTE: Only applied if no external PersistenceUnitManager specified. @see #setPersistenceUnitManager