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8

Working with JPA Entity Objects

a level 2 shared cache for the EntityManagerFactory as well as other caches as explained in
8

JPA Primary Key

is obtained from the EntityManagerFactory. The getIdentifier method takes one argument, a managed entity
8

SSL Configuration

" protocol) in the connection URL on the client side: EntityManagerFactory emf = Persistence
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javax.persistence.spi.PersistenceProvider

class in Java SE environments to create an javax.persistence.EntityManagerFactory. Since: JPA 1.0 EntityManagerFactory createContainerEntityManagerFactory( PersistenceUnitInfo info, Map map) Called by the container when an EntityManagerFactory is to be created. Called by the container
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javax.persistence.Persistence

Bootstrap class that is used to obtain an EntityManagerFactory in Java SE environments. The Persistence ... Persistence in Chapter 3 of the ObjectDB/JPA manual. EntityManagerFactory createEntityManagerFactory(String persistenceUnitName) Create and return an EntityManagerFactory for the named persistence unit
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javax.persistence.spi.PersistenceUnitInfo

by the persistence provider when creating an javax.persistence.EntityManagerFactory. Since: JPA 1.0 ... () Returns the transaction type of the entity managers created by the EntityManagerFactory. Returns the transaction type of the entity managers created by the EntityManagerFactory. The transaction type
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createContainerEntityManagerFactory(info, map)

Method javax.persistence.spi.PersistenceProvider EntityManagerFactory createContainerEntityManagerFactory( PersistenceUnitInfo info, Map map ) Called by the container when an EntityManagerFactory ... : EntityManagerFactory for the persistence unit specified by the metadata Since: JPA 1.0
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createEntityManagerFactory(emName, map)

Method javax.persistence.spi.PersistenceProvider EntityManagerFactory createEntityManagerFactory( String emName, Map map ) Called by Persistence class when an EntityManagerFactory is to be created ... (and may be null if no properties are specified). Returns: EntityManagerFactory for the persistence unit
3

createEntityManagerFactory(persistenceUnitName, properties)

Static Method javax.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
0

javax.jdo.JDOHelper

.persistence.EntityManagerFactory cast to a PersistenceManagerFactory. Returns a PersistenceManagerFactory ... .EntityManagerFactory cast to a PersistenceManagerFactory. If the name given is null or consists only of whitespace ... .EntityManagerFactory classes Returns: the PersistenceManagerFactory with properties in the given

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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