About collection

api-jpa

javax.persistence.metamodel.MapAttribute

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

 
api-jpa

javax.persistence.metamodel.ListAttribute

Instances of the type ListAttribute represent persistent javax.util.List-valued attributes.(Interface of JPA)

 
api-jpa

javax.persistence.MapKeyJoinColumn

Specifies a mapping to an entity that is a map key.(Annotation of JPA)

 
release

2.3.1

... database file suffixes. Changed fetch of collection elements. Fixed an ArrayIndexOutOfBoundsException ... strings in criteria queries. Fixed a bug in collection change tracking in a new entity object. Fixed merging ...

 
release

2.2.8

... strings in criteria queries. Fixed a bug in collection change tracking in a new entity object. Fixed merging ... JPA annotation Defines a collection of instances of a basic type or embeddable class. See JavaDoc ... Added support for serialization of inverse (mapped by) collection fields. Fixed some activations issues. ...

 
release

2.2.9

... database file suffixes. Changed fetch of collection elements. Fixed a bug in query plans that use an ... strings in criteria queries. Fixed a bug in collection change tracking in a new entity object. Fixed merging ...

 
api-jpa

javax.persistence.CollectionTable

Specifies the table that is used for the mapping of collections of basic or embeddable types.(Annotation of JPA)

 
api-jpa

in(values)

Create a predicate to test whether the expression is a member of the collection.(Method of javax.persistence.criteria.Expression)

 
api-jpa

javax.persistence.metamodel.MappedSuperclassType

Instances of the type MappedSuperclassType represent mapped superclass types.(Interface of JPA)

 
issue

spuriously objectdb objects have null references

from time to time we have in a multi threaded environment objects where all the references are null (i.e. references actions, childNodes), even after a subsequent refresh. we are using a separate entityManager per thread and have a central point where we encapsulated all the needed entitymanager methods and protected them with synchronized like:   ... ... cannot be refreshed. Does it happen only for lazy collection fields? Could you please check the status of the entity objects and these collection fields when this happens using isLoaded method in ...