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3

javax.persistence.metamodel.PluralAttribute

boolean isCollection() Is the attribute collection-valued (represents a Collection, Set, List, or Map). Is the attribute collection-valued (represents a Collection, Set, List, or Map). Returns: boolean
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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
3

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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javax.persistence.SecondaryTable

that all persistent fields or properties of the entity are mapped to the primary table ... specified by the Column and JoinColumn annotations and constraints entailed by primary key mappings
3

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
3

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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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
3

OneToMany.cascade

Annotation Element javax.persistence.OneToMany CascadeType[] cascade (Optional) The operations that must be cascaded to the target of the association. Defaults to no operations being cascaded. When the target collection is a java.util.Map, the cascade element applies to the map value. Default value: {} Since: JPA 1.0
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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
3

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

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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