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2

getPluralAttributes()

Method javax.persistence.metamodel.ManagedType Set<PluralAttribute<?,?,?>> getPluralAttributes() Return all multi-valued attributes (Collection-, Set-, List-, and Map-valued attributes ... -, Set-, List-, and Map-valued attributes Since: JPA 2.0
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javax.persistence.Column

javax.persistence Annotation Column Target: Fields (including property get methods) Is used to specify the mapped column for a persistent property or field. If no Column annotation is specified ... . This constraint applies in addition to any constraint entailed by primary key mapping and to constraints
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MapKeyEnumerated.value

Annotation Element javax.persistence.MapKeyEnumerated EnumType value (Optional) The type used in mapping a map key enum type. Default value: javax.persistence.EnumType.ORDINAL Since: JPA 2.0
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javax.persistence.metamodel.Metamodel

) Return the metamodel managed type representing the entity, mapped superclass, or embeddable class. Return the metamodel managed type representing the entity, mapped superclass, or embeddable class
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getDeclaredPluralAttributes()

Method javax.persistence.metamodel.ManagedType Set<PluralAttribute<X,?,?>> getDeclaredPluralAttributes() Return all multi-valued attributes (Collection-, Set-, List-, and Map-valued attributes ... attributes. Returns: declared Collection-, Set-, List-, and Map-valued attributes Since: JPA 2.0
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javax.persistence.Enumerated

mapping an enum type. (Optional) The type used in mapping an enum type. Default value: javax.persistence.EnumType.ORDINAL Since: JPA 1.0
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javax.persistence.metamodel.SetAttribute

-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
2

correlate(parentMap)

Method javax.persistence.criteria.Subquery MapJoin<X,K,V> correlate( MapJoin<X,K,V> parentMap ) Create a subquery map join object correlated to a map join object of the enclosing query. Parameters: parentMap - join object of the containing query Returns: subquery join Since: JPA 2.0
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ManyToMany.cascade

Annotation Element javax.persistence.ManyToMany CascadeType[] cascade (Optional) The operations that must be cascaded to the target 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
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javax.jdo.annotations.Joins

javax.jdo.annotations Annotation Joins Target: Classes Annotation for a group of joins. Since: JDO 2.1 Join[] value The join definitions used for the mapping of this type. The join definitions used for the mapping of this type. Joins for secondary tables are usually defined at the type level

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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