About map


Bean Validation (JPA 2.0)

JPA 2 adds support for integration with the Bean Validation API. Constraints are added to entity and embeddable classes by annotations, and can be checked automatically on PrePersist, PreUpdate and PreRemove lifecycle events. Integration with the Validation API is currently not supported by ObjectDB.... Do you have Bean Validation integration on your road map? Thank you very much Oliver ...


JPA Annotations for Classes

Reference (JavaDoc) of JPA 2 class annotations, including @Entity, @Embeddable, @IdClass, @Cacheable, @EntityListeners, etc. JPA defines three types of persistable classes which are set by the following annotations: javax.persistence.Embeddable javax.persistence.Entity javax.persistence.MappedSuperclass Chapter 2 of the Obje ...



(Optional) The name of the attribute within the composite key to which the relationship attribute corresponds.(Annotation Element of javax.persistence.MapsId)



Specifies that a persistent property or field should be persisted as a large object to a database-supported large object type.(Annotation of JPA)



The type used in mapping java.util.Date or java.util.Calendar.(Annotation Element of javax.persistence.Temporal)



The name of the resource for the DTD of the standard JDO object-relational mapping metadata file.(Static Field of javax.jdo.Constants)



Specifies a static, named query in the Java Persistence query language.(Annotation of JPA)


Pessimistic lock timeout - blocks indefinitely

I've attached a simple test which creates an object then kicks off several threads which each try to update the object. I'm using a pessimistic lock with timeout as follows: ... using a pessimistic lock with timeout as follows: Map<String,Object> properties = new HashMap<String,Object> ...


Adding multi part path index on non-embedable object member

Is there a way to add single member index on members of a object member which is not configured embedable but is/are mapped by id like the two members below.  @Entity public class Customer {     @MapsId     @ManyToOne(fetch = FetchType.LAZY)     private Merchant merchant;       @MapsId     @ManyToOne(fetch = FetchType.LAZY)     private List<Store> stores;     // Setter/Getter #1 2014-10-17 07:08 Is there a way to add single member index on members of a object member which is not configured embedable but is/ ...


PersistenceException UserException: Failed to validate persistence.xml

I'm really tired of looking at the same exception all day. I have DaoService which gets initialized when app starts. ... public DaoService ( ) { Map<String, String> properties = new HashMap<String, ...