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76

GenerationType.IDENTITY

Enum Constant javax.persistence.GenerationType IDENTITY Indicates that the persistence provider must assign primary keys for the entity using a database identity column. Since: JPA 1.0
8

javax.jdo.identity.ObjectIdentity

javax.jdo.identity Class ObjectIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity javax.jdo.identity.ObjectIdentity Implemented Interfaces: Externalizable, Serializable, Comparable This class is for identity with a single Object type field. Since: JDO 1.0 ObjectIdentity
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javax.jdo.identity.IntIdentity

javax.jdo.identity Class IntIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity javax.jdo.identity.IntIdentity Implemented Interfaces: Externalizable, Serializable, Comparable This class is for identity with a single int field. Since: JDO 1.0 IntIdentity() Constructor
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javax.jdo.identity.StringIdentity

javax.jdo.identity Class StringIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity javax.jdo.identity.StringIdentity Implemented Interfaces: Externalizable, Serializable, Comparable This class is for identity with a single String field. Since: JDO 1.0 StringIdentity
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javax.jdo.identity.ByteIdentity

javax.jdo.identity Class ByteIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity javax.jdo.identity.ByteIdentity Implemented Interfaces: Externalizable, Serializable, Comparable This class is for identity with a single byte field. Since: JDO 1.0 ByteIdentity() Constructor
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javax.jdo.identity.ShortIdentity

javax.jdo.identity Class ShortIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity javax.jdo.identity.ShortIdentity Implemented Interfaces: Externalizable, Serializable, Comparable This class is for identity with a single short field. Since: JDO 1.0 ShortIdentity
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javax.jdo.identity.LongIdentity

javax.jdo.identity Class LongIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity javax.jdo.identity.LongIdentity Implemented Interfaces: Externalizable, Serializable, Comparable This class is for identity with a single long field. Since: JDO 1.0 LongIdentity() Constructor
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javax.jdo.identity.CharIdentity

javax.jdo.identity Class CharIdentity java.lang.Object javax.jdo.identity.SingleFieldIdentity javax.jdo.identity.CharIdentity Implemented Interfaces: Externalizable, Serializable, Comparable This class is for identity with a single character field. Since: JDO 1.0 CharIdentity
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javax.jdo.identity.SingleFieldIdentity

javax.jdo.identity Class SingleFieldIdentity java.lang.Object javax.jdo.identity ... is the abstract base class for all single field identity classes. A common case of application identity uses exactly one persistent field in the class to represent identity. In this case, the application
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Constants.OPTION_CHANGE_APPLICATION_IDENTITY

Static Field javax.jdo.Constants String OPTION_CHANGE_APPLICATION_IDENTITY "javax.jdo.option.ChangeApplicationIdentity" 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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