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javax.persistence.MapKey

javax.persistence Annotation MapKey Target: Fields (including property get methods) Specifies the map key for associations of type java.util.Map when the map key is itself the primary key or ... associated with it. The MapKeyClass annotation is not used when MapKey is specified and vice versa
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Queries.value

Annotation Element javax.jdo.annotations.Queries Query[] value The named queries Returns: The named queries Since: JDO 2.1
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Discriminator.customStrategy

Annotation Element javax.jdo.annotations.Discriminator String customStrategy Custom strategy to use for the discriminator. If customStrategy is non-empty, then strategy must be UNSPECIFIED. Returns: the custom strategy Default value: "" Since: JDO 2.1
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Index.columns

Annotation Element javax.jdo.annotations.Index Column[] columns Columns that compose this index. Returns: columns that compose this index Default value: {} Since: JDO 2.1
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Persistent.name

Annotation Element javax.jdo.annotations.Persistent String name Name of the member when this is embedded in another object. The fully-qualified member name is used. For example, "line.point1.x" refers to the member x in class Point that is embedded as member point1 in class Line that is embedded in
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Column.target

Annotation Element javax.jdo.annotations.Column String target Target column for this column in the other table when part of a foreign key relation. Returns: the target column in the other table for this column when part of a foreign key relation. Default value: "" Since: JDO 2.1
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ForeignKeys.value

Annotation Element javax.jdo.annotations.ForeignKeys ForeignKey[] value The foreign keys. Returns: The foreign keys Since: JDO 2.1
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PersistenceCapable.cacheable

Annotation Element javax.jdo.annotations.PersistenceCapable String cacheable Whether this class is cacheable in a Level2 cache. Default value: "true" Since: JDO 2.2
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Value.columns

Annotation Element javax.jdo.annotations.Value Column[] columns The column(s) for the value. Returns: the column(s) for the value Default value: {} Since: JDO 2.1
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FetchPlan.maxFetchDepth

Annotation Element javax.jdo.annotations.FetchPlan int maxFetchDepth The depth of references to instantiate, starting with the root object. Returns: the maxium fetch depth Default value: 1 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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