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8

javax.persistence.Column

", columnDefinition="CLOB NOT NULL", table="EMP_DETAIL") @Lob public String ... String table (Optional) The name of the table that contains the column. (Optional) The name of the table that contains the column. If absent the column is assumed to be in the primary table. Default
7

javax.persistence.MappedSuperclass

information is applied to the entities that inherit from it. A mapped superclass has no separate table ... as an entity except that the mappings will apply only to its subclasses since no table exists ... the context of the subclass tables. Mapping information may be overridden in such subclasses by using
7

javax.persistence.AssociationOverride

, the joinColumns element is used. If the relationship mapping uses a join table, the joinTable element must be specified to override the mapping of the join table and/or its join columns. Example 1: Overriding ... if a join table is used in the overriding of the mapping of the relationship. Default value: {} Since: JPA 1
7

JoinColumn.name

column. The table in which it is found depends upon the context. If the join is for a OneToOne or ManyToOne mapping using a foreign key mapping strategy, the foreign key column is in the table ... key mapping strategy, the foreign key is in the table of the target entity. If the join
6

MapKeyJoinColumn.name

of the foreign key column for the map key. The table in which it is found depends upon the context. If the join is for a map key for an element collection, the foreign key column is in the collection table ... entity relationship using a join table, the foreign key column is in a join table. If the join
6

MapKeyColumn.name

column. The table in which it is found depends upon the context. If the map key is for an element collection, the map key column is in the collection table for the map value. If the map key is for a ManyToMany entity relationship or for a OneToMany entity relationship using a join table, the map key
0

javax.jdo.annotations.Element

serialized Whether the element is to be stored serialized (into a join table) 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 String table Name of the table
0

javax.jdo.annotations.Value

String serialized Whether the value is to be stored serialized (into a single column of a join table). 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 String
0

javax.jdo.annotations.Key

serialized (into a single column of a join table). Whether the key is to be stored serialized (into a single column of a join table). Returns: whether the key is to be stored serialized Default value: "" Since: JDO 2.1 String table Name of the table for the key. Name of the table for the key. Returns
0

javax.jdo.annotations.Unique

table Table for the unique constraint. Table for the unique constraint. This is needed iff annotating a type where this unique constraint is not for the primary table for the persistent class or interface. Returns: the table on which the unique constraint is defined 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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