About value

issue

New Java 8 (JDK 1.8) Collection Methods

ObjectDB version 2.5.5 (and above) supports Java 8 (JDK 1.8). Tracking changes to collections and maps using some new Java 8 methods is currently not fully supported. The main known issue is that orphan removal does not happen as a result of removing a reference to an object (which becomes an orphan) using the new methods: removeIf(predicate) and remove(key, value). ... methods:  removeIf(predicate) and remove(key, value). ObjectDB Support ObjectDB - Fast Object ...

 
api-jdo

Key.serialized

Whether the key is to be stored serialized (into a single column of a join table).(Annotation Element of javax.jdo.annotations.Key)

 
api-jpa

count(x)

Create an aggregate expression applying the count operation.(Method of javax.persistence.criteria.CriteriaBuilder)

 
api-jdo

Element.foreignKey

Name for a generated foreign key constraint.(Annotation Element of javax.jdo.annotations.Element)

 
api-jdo

Query.unmodifiable

Whether the query is unmodifiable.(Annotation Element of javax.jdo.annotations.Query)

 
api-jpa

OneToMany.targetEntity

(Optional) The entity class that is the target of the association.(Annotation Element of javax.persistence.OneToMany)

 
api-jpa

CollectionTable.joinColumns

(Optional) The foreign key columns of the collection table which reference the primary table of the entity.(Annotation Element of javax.persistence.CollectionTable)

 
forum_thread

How to Persist a Map of beans to collections of beans?

Hello, I am trying to add a new persistable object to the package.jdo for persistence in a .odb file.  The class contains a field that is as follows: private Map<SomeKindaBean, List<SomeOtherTypeOfBean>> m_objectToPersist; I'm at a loss for how to format the xml in the .jdo file for this object.  How does one persist this in package.jdo xml?  Thanks in advance for your help. -A #1 2012-02-14 23:58 Hello, I am trying to add a new persistable object to the package.jdo for persistence in a .odb file ...

 
api-jpa

javax.persistence.metamodel.SetAttribute

Instances of the type SetAttribute represent persistent java.util.Set-valued attributes.(Interface of JPA)

 
forum_thread

Refresh data in application after database data has changed

Hi, I have a Java program that can manage and create some Person objects. When I start my application and I want to add a person with the same national number as a person already in the database, my program has to block the creation. ... as a person I want to add. However when I change the value of the national number in the database explorer when the program is ...