About INNER JOIN

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JDO Doc
3

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
JDO Doc
3

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
Issue
2

combined index not used

: (v$1.linkedObjects join v$2). Step 5: Process ObjectProperty (v$3) instances ... .properties join v$3). [Step 5b] Evaluate fields in ObjectProperty (v$3) instances. [Step 5c ... is preferred and can improve performance). Complex heavy queries with several JOIN operations require
Forum
2

Database size is much larger than expected (x2)

only the special features when @Inheritance(strategy=InheritanceType.JOINED)? ObjectDB ignores @Inheritance but I ... with entity classes defined as inner static classes. ??? What IDE you use? .persist() is in URIReader. OK ... =InheritanceType.JOINED) @DiscriminatorColumn(discriminatorType=DiscriminatorType.INTEGER,name
Issue
2

JPQL support for Maps (JPA 2.0)

of ObjectDB 2.3.7. It seems to me they are not supported. Query : "SELECT s FROM Session s JOIN s ... = "DATA_KEY")     @JoinFetch(INNER)     private Map data; } Error : Stacktrace ... is indeed unsupported yet. Try: SELECT s FROM Session s JOIN s.data d WHERE d = :value That works
JPA Doc
2

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
2

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
JPA Doc
2

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
2

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
2

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