About join

issue

Read only hint for query

Second thing after @FetchGroup I've found is read-only hint for EM. You can specify this hint to EM when executing query meaning that returned data will never be edited or persisted. My understanding of this is that each entity returned from query is in detached state as default state. query.setHint("odb.read-only", "true"); This could be useful in situation when you are sure, that you won't modify those entities - like listing entities, paging, logging, reporting. Feature Request Version: Priority: Normal Status: Active Replies: 0 Type:  Feature Request ...

 
issue

Dynamic Metadata (JDO 3.0)

JDO 3 introduces the ability to specify metadata of persistable types dynamically. ObjectDB 2 supports specifying metadata by: JPA XML Mapping Metadata JPA Annotations JDO XML Metadata (e.g. package.jdo) JDO Annotations All these JDO Feature Version: Priority: Low Status: Active Replies: 0 Type:  JDO Feature ...

 
api-jpa

JoinType.RIGHT

Right outer join.(Enum Constant of javax.persistence.criteria.JoinType)

 
forum_thread

Git seems not to commit objectdb.conf

git version 1.8.4.1 (Mac OS X) For some reason my Git seems to be "ignoring" (although not in .gitignore) the web/WEB-INF/objectdb.conf in a web app. I can't find anything about the .conf suffix being ignored. Has anybody noticed this and/or found a solution ? #1 2014-09-12 05:58 git version 1.8.4.1 (Mac OS X) For some reason my Git seems to be "ignoring" (although not in .gitignore) ...

 
forum_thread

ObjectDB version 2.1 has been released

Version 2.1 has been released: #1 2011-02-25 06:25 ObjectDB 2.1 has been released and it includes important additions and fixes: Added Online Backu ...

 
forum_thread

ObjectDB version 2.2 has been released

ObjectDB 2.2 has been released and it includes important additions and fixes: #1 2011-04-03 09:11 ObjectDB 2.2 has been released and it includes important additions and fixes: Added full support o ...

 
api-jpa

getModel()

Return the metamodel representation for the collection attribute.(Method of javax.persistence.criteria.CollectionJoin)

 
api-jpa

JoinColumns.value

The join columns that map the relationship.(Annotation Element of javax.persistence.JoinColumns)

 
api-jpa

PrimaryKeyJoinColumn.name

(Optional) The name of the primary key column of the current table.(Annotation Element of javax.persistence.PrimaryKeyJoinColumn)

 
api-jpa

MapKeyJoinColumn.referencedColumnName

(Optional) The name of the column referenced by this foreign key column.(Annotation Element of javax.persistence.MapKeyJoinColumn)