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javax.persistence.AssociationOverride

mappings at multiple levels of embedding, a dot (".") notation syntax must be used in the name element
2

javax.persistence.ManyToMany

javax.persistence Annotation ManyToMany Target: Fields (including property get methods) Defines a many-valued association with many-to-many multiplicity. Every many-to-many association has two sides, the owning side and the non-owning, or inverse, side. The join table is specified on the owning
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javax.persistence.IdClass

javax.persistence Annotation IdClass Target: Classes Specifies a composite primary key class that is mapped to multiple fields or properties of the entity. The names of the fields or properties in the primary key class and the primary key fields or properties of the entity must correspond
2

javax.persistence.NamedQueries

javax.persistence Annotation NamedQueries Target: Classes Specifies multiple named Java Persistence query language queries. Query names are scoped to the persistence unit. The NamedQueries annotation can be applied to an entity or mapped superclass. Since: JPA 1.0 See Also: NamedQuery Learn
2

javax.persistence.NamedNativeQueries

javax.persistence Annotation NamedNativeQueries Target: Classes Used to specify multiple native SQL named queries. Query names are scoped to the persistence unit. The NamedNativeQueries annotation can be applied to an entity or mapped superclass. Since: JPA 1.0 See Also: NamedNativeQuery
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javax.persistence.AttributeOverride

map value. To override mappings at multiple levels of embedding, a dot (".") notation form
2

javax.persistence.ManyToOne

javax.persistence Annotation ManyToOne Target: Fields (including property get methods) Defines a single-valued association to another entity class that has many-to-one multiplicity. It is not normally necessary to specify the target entity explicitly since it can usually be inferred from the type
0

Joins.value

Annotation Element javax.jdo.annotations.Joins Join[] value The join definitions used for the mapping of this type. Joins for secondary tables are usually defined at the type level and not the field or property level. This allows multiple fields and properties to share the same join definition
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javax.jdo.JDOHelper

. If multiple PMFs with the requested name are found, a JDOFatalUserException is thrown. Parameters
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setExtensions(extensions)

Method javax.jdo.Query void setExtensions( Map extensions ) Set multiple extensions, or use null to clear all extensions. Map keys and values are not standard. An implementation must ignore entries that are not recognized. Parameters: extensions - the map of extensions Since: JDO 2.0 See Also: addExtension

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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