About attribute

release

2.6.0

Release date: 2015-01-13 Download (5.5 MB) Binary:  objectdb-2.6.0.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

JDO support vs JPA

Hi, I am about to update the JDO metadata in the package.jdo files after moving from ObjectDB 1 to 2. However I found that there is no complete description or guide how the XML metadata should look in version 2. I found only small fragments of attributes in the description of JDO Annotations (to which XML element is the given annotation equivalent). So my questions to this are: 1. Is there some description of XML metadata for ObjectDB ver2 using JDO which I did not find? #1 2014-07-06 15:53 Hi, I am about to update the JDO metadata in the package.jdo files after moving from ObjectDB 1 to 2. How ...

 
forum_thread

member visiting in jpql

baURI is a byte[]; JP QL> select e.baURI.length from URI e where id=82778 JP QL> [ObjectDB 2.2.9_04] javax.persistence.PersistenceException Navigation from 'byte[]' through 'length' is invalid (error 763) at com.objectdb.jpa.JpaQuery.getResultList(JpaQuery.java:636) at util.JPQLcmd.QureyCMD(JPQLcmd.java:43) at util.JPQLcmd.main(JPQLcmd.java:28) Why I can not visit the length attribute? TIA ... : 28 ) Why I can not visit the length attribute? TIA Institute of Computer Technologies ...

 
forum_thread

Rename Application StringIdentity

I don't think JDO supports altering an entity's Application Identity.  Does ObjectDB? @PersistenceCapable public class MyClass implements Serializable, Cloneable{ @Id private StringIdentity id; ... }   ... object in the ObjectDB datastore and just change its "id" attribute?  (And update indexes and references appropriately?)  Or, ...

 
api-jpa

join(collection)

Create an inner join to the specified Collection-valued attribute.(Method of javax.persistence.criteria.From)

 
issue

Internal Exception and Index Problems

Dear Support Team, we have an urgent issue in a productive database. The objectdb doctor finds no error but one string field of one database item is not editable (even not using the objectdb explorer). The corrupt entry is in entity "UserModelData" with id="7d29d5eb-69a6-4d46-9bf1-802cbb6e439b". Try to change the userName attribute of this entry then the following error occurs: ... Try to change the userName attribute of this entry then the following error occurs: Unexpected ...

 
api-jdo

Constants.PMF_ATTRIBUTE_SERVER_TIME_ZONE_ID

The name of the persistence manager factory element's "server-time-zone-id" attribute.(Static Field of javax.jdo.Constants)

 
api-jdo

Constants.PMF_ATTRIBUTE_CONNECTION_USER_NAME

The name of the persistence manager factory element's "connection-user-name" attribute.(Static Field of javax.jdo.Constants)

 
api-jdo

Constants.PMF_ATTRIBUTE_NONTRANSACTIONAL_READ

The name of the persistence manager factory element's "nontransactional-read" attribute.(Static Field of javax.jdo.Constants)

 
api-jpa

find(entityClass, primaryKey, lockMode, properties)

Find by primary key and lock, using the specified properties.(Method of javax.persistence.EntityManager)