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javax.persistence.criteria.PluralJoin

javax.persistence.criteria Interface PluralJoin<Z,C,E> Superinterfaces: Expression<E>, FetchParent<Z,E>, From<Z,E>, Join<Z,E>, Path<E>, Selection<E>, TupleElement<E> Subinterfaces: CollectionJoin, ListJoin, MapJoin, SetJoin The PluralJoin interface defines functionality that is common to joins
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javax.persistence.MapKeyClass

javax.persistence Annotation MapKeyClass Target: Fields (including property get methods) Specifies the type of the map key for associations of type java.util.Map. The map key can be a basic type, an embeddable class, or an entity. If the map is specified using Java generics, the MapKeyClass
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javax.persistence.EntityTransaction

javax.persistence Interface EntityTransaction Interface used to control transactions on resource-local entity managers. The EntityManager.getTransaction() method returns the EntityTransaction interface. Since: JPA 1.0 Learn how to use EntityTransaction in Chapter 3 of the ObjectDB/JPA manual. void
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javax.persistence.Table

javax.persistence Annotation Table Target: Classes Specifies the primary table for the annotated entity. Additional tables may be specified using SecondaryTable or SecondaryTables annotation. If no Table annotation is specified for an entity class, the default values apply. Example: @Entity
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javax.persistence.PreUpdate

javax.persistence Annotation PreUpdate Target: Callback methods Is used to specify callback methods for the corresponding lifecycle event. This annotation may be applied to methods of an entity class, a mapped superclass, or a callback listener class. Since: JPA 1.0 Learn how to define and use JPA
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javax.persistence.AttributeOverrides

javax.persistence Annotation AttributeOverrides Target: Classes and fields (including property get methods) Used to override mappings of multiple properties or fields. Example: @Embedded @AttributeOverrides({ @AttributeOverride(name="startDate
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javax.persistence.Access

javax.persistence Annotation Access Target: Classes and fields (including property get methods) Used to specify an access type to be applied to an entity class, mapped superclass, or embeddable class, or to a specific attribute of such a class. Since: JPA 2.0 AccessType value (Required
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javax.persistence.Cache

javax.persistence Interface Cache Interface used to interact with the second-level cache. If a cache is not in use, the methods of this interface have no effect, except for contains, which returns false. Since: JPA 2.0 Learn how to use Cache in Chapter 3 of the ObjectDB/JPA manual. boolean contains
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Constants.PROPERTY_PERSISTENCE_UNIT_NAME

Static Field javax.jdo.Constants String PROPERTY_PERSISTENCE_UNIT_NAME "javax.jdo.option.PersistenceUnitName" Since: JDO 2.1 See Also: PersistenceManagerFactory.getPersistenceUnitName()
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Constants.PROPERTY_PERSISTENCE_MANAGER_FACTORY_CLASS

Static Field javax.jdo.Constants String PROPERTY_PERSISTENCE_MANAGER_FACTORY_CLASS "javax.jdo.PersistenceManagerFactoryClass" Since: JDO 2.1 See Also: JDOHelper.getPersistenceManagerFactory(java.util.Map)

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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