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javax.persistence.criteria.MapJoin

>, From<Z,V>, Join<Z,V>, Path<V>, PluralJoin<Z,Map<K,V>,V>, Selection<V>, TupleElement<V ... collection that has been specified as a java.util.Map. Since: JPA 2.0 Selection<X> alias(String name ... that corresponds to the map entry. Create an expression that corresponds to the map entry. Returns
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javax.persistence.MapKeyJoinColumn

) Specifies a mapping to an entity that is a map key. The map key join column is in the collection table, join table, or table of the target entity that is used to represent the map. If no MapKeyJoinColumn ... ")) @MapKeyJoinColumn(name="DIVISION") Map organization; } Example 2: @Entity
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javax.persistence.metamodel.MappedSuperclassType

>, ManagedType<X>, Type<X> Instances of the type MappedSuperclassType represent mapped superclass ... by the entity or mapped superclass. Return the attribute that corresponds to the id attribute declared by the entity or mapped superclass. Parameters: type - the type of the represented declared id
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javax.persistence.metamodel.IdentifiableType

entity or mapped superclass types. Since: JPA 2.0 Attribute<?,?> getAttribute(String name) Return ... to the id attribute declared by the entity or mapped superclass. Return the attribute that corresponds to the id attribute declared by the entity or mapped superclass. Parameters: type - the type
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javax.persistence.metamodel.EntityType

that corresponds to the id attribute declared by the entity or mapped superclass. Return the attribute that corresponds to the id attribute declared by the entity or mapped superclass. Parameters: type - the type ... the Map-valued attribute declared by the managed type that corresponds to the specified name. Return
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javax.persistence.MapKeyColumn

the mapping for the key column of a map whose map key is a basic type. If the name element is not ... ="IMAGE_FILENAME") @CollectionTable(name="IMAGE_MAPPING") Map images; // map ... ) The name of the map key column. (Optional) The name of the map key column. The table in which it is found
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JPA 2 Annotations

other JPA annotations are designated for Object Relational Mapping (ORM) JPA providers (for mapping
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Database Schema Evolution

collection or array that can contain that object as en element. From any map type to any map type as
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JPA / JDO Class Enhancer

(entity classes, embeddable classes and mapped superclasses), and is usually optional ... objects. With no enhancement, only persistent collection and map fields can be loaded lazily (by
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Step 6: Set the Spring XML

-mapping> <servlet-name>spring</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping> <session-config> <session-timeout> 30 </session-timeout

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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