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2

key()

Method javax.persistence.criteria.MapJoin Path<K> key() Create a path expression that corresponds to the map key. Returns: path corresponding to map key Since: JPA 2.0
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javax.persistence.ManyToMany

of the association. When the target collection is a java.util.Map, the cascade element applies to the map value. Defaults to no operations being cascaded. Default value: {} Since: JPA 1.0 FetchType
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getModel()

Method javax.persistence.criteria.MapJoin MapAttribute<?,K,V> getModel() Return the metamodel representation for the map attribute. Returns: metamodel type representing the Map that is the target of the join Since: JPA 2.0
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javax.persistence.PessimisticLockScope

is otherwise mapped to a secondary table, this entails locking the row(s) for the entity instance in ... key (such as relationships that are mapped to join tables or unidirectional one-to-many relationships
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javax.persistence.Temporal

fields in Chapter 2 of the ObjectDB/JPA manual. TemporalType value The type used in mapping java.util.Date or java.util.Calendar. The type used in mapping java.util.Date or java.util.Calendar. Since: JPA 1.0
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entry()

Method javax.persistence.criteria.MapJoin Expression<Entry<K,V>> entry() Create an expression that corresponds to the map entry. Returns: expression corresponding to the map entry Since: JPA 2.0
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javax.persistence.InheritanceType

A strategy in which fields that are specific to a subclass are mapped to a separate table ... . A strategy in which fields that are specific to a subclass are mapped to a separate table than the fields
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getSupertype()

Method javax.persistence.metamodel.IdentifiableType IdentifiableType<?> getSupertype() Return the identifiable type that corresponds to the most specific mapped superclass or entity extended by the entity or mapped superclass. Returns: supertype of identifiable type or null if no such supertype Since: JPA 2.0
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javax.persistence.metamodel.Attribute

collection-valued (represents a Collection, Set, List, or Map). Is the attribute collection-valued (represents a Collection, Set, List, or Map). Returns: boolean indicating whether the attribute is collection-valued Since: JPA 2.0
0

getPersistenceManagerFactory(props)

Static Method javax.jdo.JDOHelper PersistenceManagerFactory getPersistenceManagerFactory( Map props ) Get a PersistenceManagerFactory based on a Properties instance, using the current thread's ... . Since: JDO 1.0 See Also: getPersistenceManagerFactory(java.util.Map,ClassLoader)

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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