Fast Object Database for Java - with JPA/JDO support

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javax.persistence.criteria.FetchParent

a fetch join to the specified attribute using an inner join. Create a fetch join to the specified attribute using an inner join. Parameters: attributeName - name of the attribute for the target ... > attribute) Create a fetch join to the specified collection-valued attribute using an inner join. Create
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javax.jdo.annotations.Joins

javax.jdo.annotations Annotation Joins Target: Classes Annotation for a group of joins. Since: JDO 2.1 Join[] value The join definitions used for the mapping of this type. The join definitions used for the mapping of this type. Joins for secondary tables are usually defined at the type level
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join(attribute, jt)

Method javax.persistence.criteria.From Join join( SingularAttribute attribute, JoinType jt ) Create a join to the specified single-valued attribute using the given join type. Parameters: attribute - target of the join jt - join type Returns: the resulting join Since: JPA 2.0
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join(attributeName, jt)

Method javax.persistence.criteria.From Join join( String attributeName, JoinType jt ) Create a join to the specified attribute using the given join type. Parameters: attributeName - name of the attribute for the target of the join jt - join type Returns: the resulting join Throws
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join(collection, jt)

Method javax.persistence.criteria.From CollectionJoin join( CollectionAttribute collection, JoinType jt ) Create a join to the specified Collection-valued attribute using the given join type. Parameters: collection - target of the join jt - join type Returns: the resulting join Since: JPA 2.0
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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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join(list, jt)

Method javax.persistence.criteria.From ListJoin join( ListAttribute list, JoinType jt ) Create a join to the specified List-valued attribute using the given join type. Parameters: list - target of the join jt - join type Returns: the resulting join Since: JPA 2.0
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join(map, jt)

Method javax.persistence.criteria.From MapJoin join( MapAttribute map, JoinType jt ) Create a join to the specified Map-valued attribute using the given join type. Parameters: map - target of the join jt - join type Returns: the resulting join Since: JPA 2.0
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join(set, jt)

Method javax.persistence.criteria.From SetJoin join( SetAttribute set, JoinType jt ) Create a join to the specified Set-valued attribute using the given join type. Parameters: set - target of the join jt - join type Returns: the resulting join Since: JPA 2.0
19

Join.columns

Annotation Element javax.jdo.annotations.Join Column[] columns Detail definition of the join column(s). This is needed for more than one join column. Returns: the join columns 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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