About dot

manual

Paths and Types in JPQL and Criteria API

Explains how to use object expressions (path navigation, type) in JPA/JPQL.... parameter or prefix path expression) and uses the dot ( . ) operator to navigate through persistent fields to other objects and ... user class can be extended further by reusing the dot (.) operator. For example, c.capital.name is a nested path expression ...

 
api-jpa

javax.persistence.OrderBy

Specifies the ordering of the elements of a collection valued association or element collection at the point when the association or collection is retrieved.(Annotation of JPA)

 
issue

ODB Doctor Stops Progressing (runs forever)

Hi, Bug Version: 2.6.1 Priority: Normal Status: Closed Replies: 2 Type:  Bug ...

 
api-jpa

javax.persistence.OneToOne

Defines a single-valued association to another entity that has one-to-one multiplicity.(Annotation of JPA)

 
api-jpa

javax.persistence.ManyToOne

Defines a single-valued association to another entity class that has many-to-one multiplicity.(Annotation of JPA)

 
api-jpa

javax.persistence.ManyToMany

Defines a many-valued association with many-to-many multiplicity.(Annotation of JPA)

 
api-jpa

javax.persistence.AttributeOverride

Used to override the mapping of a Basic (whether explicit or default) property or field or Id property or field.(Annotation of JPA)

 
api-jpa

javax.persistence.AssociationOverride

Used to override a mapping for an entity relationship.(Annotation of JPA)

 
forum_thread

Navigation through Path to evaluate collection

Hello, I need to evaluate a field ("identifier") which is situated in a collection, within an entity. As stated in the documentation it is not possible to navigate there with the dot operator since its a collection. Is it there a way to evaluate this field? Here is the query, the entity and the related embeddable class. Thanks ... it is not possible to navigate there with the dot operator since its a collection. Is it there a way to evaluate this field? ...

 
issue

[ObjectDB 2.5.5_03] Unexpected exception (Error 990)

Hello! When I run this query SELECT t FROM Unit t WHERE t.lastGeocodedPosition IS NULL OR t.lastGeocodedPosition.receiveTime < :lastGeocodedPosition.receiveTime I get the following exception: Bug Version: Priority: Normal Status: Fixed Replies: 9 Type:  Bug ...