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4

getModel()

Method javax.persistence.criteria.PluralJoin PluralAttribute<?,C,E> getModel() Return the metamodel representation for the collection-valued attribute corresponding to the join. Returns: metamodel collection-valued attribute corresponding to the target of the join Since: JPA 2.0
4

getModel()

Method javax.persistence.criteria.PluralJoin PluralAttribute<?,C,E> getModel() Return the metamodel representation for the collection-valued attribute corresponding to the join. Returns: metamodel collection-valued attribute corresponding to the target of the join Since: JPA 2.0
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MapKeyColumn.table

using a join table, the name of the join table for the map. If the map key is for a OneToMany entity
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MapKeyColumn.name

is for a ManyToMany entity relationship or for a OneToMany entity relationship using a join table, the map key column is in a join table. If the map key is for a OneToMany entity relationship using a foreign key
4

getModel()

Method javax.persistence.criteria.PluralJoin PluralAttribute<?,C,E> getModel() Return the metamodel representation for the collection-valued attribute corresponding to the join. Returns: metamodel collection-valued attribute corresponding to the target of the join Since: JPA 2.0
4

AssociationOverride.joinTable

Annotation Element javax.persistence.AssociationOverride JoinTable joinTable The join table that maps the relationship. The joinTable element must be specified if a join table is used in the overriding of the mapping of the relationship. The joinTable element must not be specified if a foreign key
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AssociationOverride.joinColumns

Annotation Element javax.persistence.AssociationOverride JoinColumn[] joinColumns The join column(s) being mapped to the persistent attribute(s). The joinColumns elements must be specified ... must not be specified if a join table is used in the overriding of the mapping of the relationship. Default value: {} Since: JPA 1.0
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PrimaryKeyJoinColumn.referencedColumnName

Annotation Element javax.persistence.PrimaryKeyJoinColumn String referencedColumnName (Optional) The name of the primary key column of the table being joined to. Defaults to the same name as the primary key column of the primary table of the superclass (JOINED mapping strategy); the same name as
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Element.serialized

Annotation Element javax.jdo.annotations.Element String serialized Whether the element is to be stored serialized (into a join table) Returns: whether the element is to be stored serialized (into a join table) Default value: "" Since: JDO 2.1
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Value.serialized

Annotation Element javax.jdo.annotations.Value String serialized Whether the value is to be stored serialized (into a single column of a join table). Returns: Whether the value is to be stored serialized (into a join table) Default value: "" Since: JDO 2.1

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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