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type()

Method javax.persistence.criteria.Path Expression<Class<?>> type() Create an expression corresponding to the type of the path. Returns: expression corresponding to the type of the path Since: JPA 2.0
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Type.PersistenceType.BASIC

Enum Constant javax.persistence.metamodel.Type.PersistenceType BASIC Basic type Since: JPA 2.0
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Bindable.BindableType.ENTITY_TYPE

Enum Constant javax.persistence.metamodel.Bindable.BindableType ENTITY_TYPE Entity type Since: JPA 2.0
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Type.PersistenceType.EMBEDDABLE

Enum Constant javax.persistence.metamodel.Type.PersistenceType EMBEDDABLE Embeddable class Since: JPA 2.0
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Type.PersistenceType.MAPPED_SUPERCLASS

Enum Constant javax.persistence.metamodel.Type.PersistenceType MAPPED_SUPERCLASS Mapped superclass Since: JPA 2.0
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Type.PersistenceType.ENTITY

Enum Constant javax.persistence.metamodel.Type.PersistenceType ENTITY Entity Since: JPA 2.0
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PersistenceContext.type

Annotation Element javax.persistence.PersistenceContext PersistenceContextType type (Optional) Specifies whether a transaction-scoped persistence context or an extended persistence context is to be used. Default value: javax.persistence.PersistenceContextType.TRANSACTION Since: JPA 1.0
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JPA Metamodel API

reflection provides for general Java types. The Metamodel Interface The main interface of the JPA ... (); The Metamodel interface provides several methods for exploring user defined persistable types (which are referred to as managed types) in the persistent object model. Three methods can be used
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Constants.OPTION_MAPPING_HETEROGENEOUS_OBJECT_TYPE

Static Field javax.jdo.Constants String OPTION_MAPPING_HETEROGENEOUS_OBJECT_TYPE "javax.jdo.option.mapping.HeterogeneousObjectType" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()
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Constants.OPTION_MAPPING_HETEROGENEOUS_INTERFACE_TYPE

Static Field javax.jdo.Constants String OPTION_MAPPING_HETEROGENEOUS_INTERFACE_TYPE "javax.jdo.option.mapping.HeterogeneousInterfaceType" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()

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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