About join

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JPA Doc
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correlate(parentMap)

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

correlate(parentSet)

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

fetch(attribute)

Method javax.persistence.criteria.FetchParent Fetch fetch(   PluralAttribute attribute ) Create a fetch join to the specified collection-valued attribute using an inner join. Parameters: attribute - target of the join Returns: the resulting join Since: JPA 2.0
JPA Doc
6

fetch(attribute)

Method javax.persistence.criteria.FetchParent Fetch fetch(   SingularAttribute attribute ) Create a fetch join to the specified single-valued attribute using an inner join. Parameters: attribute - target of the join Returns: the resulting fetch join Since: JPA 2.0
JPA Doc
6

fetch(attributeName)

Method javax.persistence.criteria.FetchParent Fetch fetch(   String attributeName ) Create a fetch join to the specified attribute using an inner join. Parameters: attributeName - name of the attribute for the target of the join Returns: the resulting fetch join Throws
JPA Doc
6

getCorrelatedJoins()

Method javax.persistence.criteria.Subquery Set<Join> getCorrelatedJoins() Return the correlated joins of the subquery. Returns empty set if the subquery has no correlated joins. Modifications to the set do not affect the query. Returns: the correlated joins of the subquery Since: JPA 2.0
JPA Doc
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getJoins()

Method javax.persistence.criteria.From Set<Join> getJoins() Return the joins that have been made from this bound type. Returns empty set if no joins have been made from this bound type. Modifications to the set do not affect the query. Returns: joins made from this type Since: JPA 2.0
JDO Doc
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javax.jdo.annotations.Key

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 "false". Returns: whether to generate or assume ... serialized (into a single column of a join table). Whether the key is to be stored serialized (into
JPA Doc
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javax.persistence.CollectionTable

@CollectionTable(name="HOMES") // use default join column name @AttributeOverrides ... only applies if a single join column is used. The default is the same as for JoinColumn (i.e ... column.) However, if there is more than one join column, a JoinColumn annotation must be specified
JPA Doc
6

javax.persistence.MapKeyColumn

for a OneToMany entity relationship using a join table, the map key column is in a join table ... is for a OneToMany or ManyToMany entity relationship using a join table, the name of the join table