About JOIN

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JPA Doc
6

fetch(attributeName, jt)

 jt ) Create a fetch 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 fetch join Throws: IllegalArgumentException - if attribute of the given name does not exist Since: JPA 2.0
JDO Doc
6

javax.jdo.annotations.Element

key constraint exists on the column or columns associated with this join. Generate or assume a foreign key constraint exists on the column or columns associated with this join. Specify "true" or ... serialized Whether the element is to be stored serialized (into a join table) Whether the element
JDO Doc
6

javax.jdo.annotations.Value

a foreign key constraint exists on the column or columns associated with this join. Generate or assume a foreign key constraint exists on the column or columns associated with this join. Specify "true" or ... String serialized Whether the value is to be stored serialized (into a single column of a join table
JPA Doc
6

javax.persistence.PessimisticLockScope

that are contained in join tables will be locked if the javax.persistence.lock.scope property is specified ... , element collections and relationships owned by the entity that are contained in join tables ... only the rows in the join table or collection table for that relationship or collection. This means
JPA Doc
6

joinCollection(attributeName, jt)

,   JoinType jt ) Create a join to the specified Collection-valued 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: IllegalArgumentException - if attribute of the given name does not exist Since: JPA 2.0
JPA Doc
6

joinList(attributeName, jt)

 jt ) Create a join to the specified List-valued 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: IllegalArgumentException - if attribute of the given name does not exist Since: JPA 2.0
JPA Doc
6

joinMap(attributeName, jt)

 jt ) Create a join to the specified Map-valued 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: IllegalArgumentException - if attribute of the given name does not exist Since: JPA 2.0
JPA Doc
6

joinSet(attributeName, jt)

Method javax.persistence.criteria.From SetJoin joinSet(   String attributeName,   JoinType jt ) Create a join to the specified Set-valued 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
JPA Doc
6

correlate(parentCollection)

Method javax.persistence.criteria.Subquery CollectionJoin correlate(   CollectionJoin parentCollection ) Create a subquery collection join object correlated to a collection join object of the enclosing query. Parameters: parentCollection - join object of the containing query Returns: subquery join Since: JPA 2.0
JPA Doc
6

correlate(parentList)

Method javax.persistence.criteria.Subquery ListJoin correlate(   ListJoin parentList ) Create a subquery list join object correlated to a list join object of the enclosing query. Parameters: parentList - join object of the containing query Returns: subquery join Since: JPA 2.0