About reference

forum_thread

Evaluation License

Hi, I'm an individual developer and my project has more then 10 persistable types. How can I get a free commercial license? (According to the post below, this might be possible).     Hi, This exception indicates an attempt to use more than 10 persistable types (e.g. entity classes) with no license key. As noted on the license page: #1 2012-07-11 14:42 Hi, I'm an individual developer and my project has more then 10 persistable types. How can I get a fr ...

 
forum_thread

World database - Changing country ID

Hi, I am getting familiar with OpenDB as I am considering using it in some project. I opened Sample world DB in ObjectDB Explorer - and couldn't find my country, as it has invalid id ( ez instead of cz ). I changed the id of country to "cz". But when I try to find the country: SELECT c FROM Country c WHERE id = "cz" no results are returned. If i find it by name, I can see ID has changed to cz. However Country#ez is still displayed in the top. #1 2012-11-21 12:35 Hi, I am getting familiar with OpenDB as I am considering using it in some project. I opened Sample world ...

 
api-jdo

javax.jdo.identity.LongIdentity

This class is for identity with a single long field.(Class of JDO)

 
api-jdo

javax.jdo.InstanceCallbacks

A PersistenceCapable class that provides callback methods for life cycle events implements this interface.(Interface of JDO)

 
issue

probable error in text of manual about embeddable classes

at http://www.objectdb.com/java/jpa/entity/types website in "Embeddable Classes" section there is a phrase "e.g. their instances cannot be shared by different entity objects" which seems to be wrong. ... If you try to share an embeddable object, i.e. include a reference to it from two different entity objects, eventually each entity ...

 
api-jdo

javax.jdo.spi.JDOImplHelper

This class is a helper class for JDO implementations.(Class of JDO)

 
api-jpa

javax.persistence.AccessType

Is used with the Access annotation to specify an access type to be applied to an entity class, mapped superclass, or embeddable class, or to a specific attribute of such a class.(Enum of JPA)

 
api-jpa

isActive()

Indicate whether a resource transaction is in progress.(Method of javax.persistence.EntityTransaction)

 
forum_thread

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 ... says it works on embedded objects only. So since it reference only, what is suggested way of doing this? Hope to hear your ...

 
forum_thread

Problem with merging / persisitng objects with @Embeddable field

Hi, After migration to version 2.4.2_01, I have noticed a strange problem with persisting object with field that contains @Embeddable object. Please check attached exception. Relation between entities looks like this: #1 2012-08-09 10:58 Hi, After migration to version 2.4.2_01, I have noticed a strange problem with persisting object with fie ...