About dependency

forum_thread

coonection pooling

Hi, is it possible to implement a mechanism in object db which redirects a particular user to its database. For example we have an ObjecDB server with 100 databases. On our Jboss server we have a single deployed application with 100 users. Depending on the logged user it will connect to different database when quering the ObjectDB. can we use persistence.xml to define this connection routing or, according to this scheme http://www.objectdb.com/java/jpa/persistence/overview , EntityManagerFactory would be responsible for this operation. #1 2016-11-01 10:09 Hi, is it possible to implement a mechanism in object db which redirects a particular user to its database. ...

 
forum_thread

Shrinking Database Files

These are questions asked in the context of the proposed architecture described in the forum thread titled, "Sample JDO Architecture for Follow Up Questions".   I thought I read something on the ObjectDB website (forum? 1.x manual?), which I cannot find now, that stated that the datastore file never shrinks when large number of objects are deleted and the only way to reclaim that space would be with Database Doctor. Is there a way to reclaim database file space? #1 2016-07-25 16:13 These are questions asked in the context of the proposed architecture described in the forum thread titled, "Samp ...

 
forum_thread

Is 2 level cache in use?

Hi, Is there any way to check, if 2 level cache is in use? Right now I've done two things: 1. objectdb.conf with cache size is placed in WEB-INF directory of my web application. 2. persistence.xml was modified with: #1 2011-05-06 11:55 Hi, Is there any way to check, if 2 level cache is in use? Right now I've done two things: 1. ...

 
forum_thread

WebSphere Liberty Configuration

Hi! I've been trying to get ObjectDB configured with WebSphere Liberty server. I have been able to get the sample app running in TomCat but when I run the jee version of the guestbook in WebSphere I get a combination of errors depending on how I tweak the configuration the most promising error I get is this one: #1 2016-08-09 14:30 Hi! I've been trying to get ObjectDB configured with WebSphere Liberty server. I have been ab ...

 
api-jdo

iterator()

Returns an iterator over all the instances in the Extent.(Method of javax.jdo.Extent)

 
api-jpa

setHint(hintName, value)

Set a query property or hint.(Method of javax.persistence.Query)

 
api-jpa

javax.persistence.JoinColumn

Specifies a column for joining an entity association or element collection.(Annotation of JPA)

 
api-jpa

setHint(hintName, value)

Set a query property or hint.(Method of javax.persistence.TypedQuery)

 
api-jpa

javax.persistence.PersistenceContexts

Declares one or more PersistenceContext annotations.(Annotation of JPA)

 
api-jpa

lock(entity, lockMode, properties)

Lock an entity instance that is contained in the persistence context with the specified lock mode type and with specified properties.(Method of javax.persistence.EntityManager)