Fast Object Database for Java - with JPA/JDO support

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3

Listing large number of complicated objects with paging.

.578 [http-bio-8080-exec-3] DEBUG pl.hplxtool.dao.impl.ProductDAOImpl - Query: [select prod from Product prod order by prod.id ASC] 2011-11-15 19:30:59.578 [http-bio-8080-exec-3] DEBUG pl.hplxtool.dao ... .hplxtool.dao.impl.ProductDAOImpl - Start: 250, count: 50 2011-11-15 19:31:03.219 [http-bio-8080-exec-3
3

Exception on the recovery of a database

.objectdb.jpa.EMF.createEntityManager(EMF.java:173) at rbccm.felix.gridservice.admin.dao.ConnectionManagerFactory.createEntityManager(Unknown Source) at rbccm.felix.gridservice.admin.dao.HistoryArchiver.populateArchive(Unknown Source) at rbccm.felix.gridservice.admin.dao.HistoryArchiver.moveHistory
3

Querying error - java.lang.ClassCastException: com.objectdb.o.STV

(JpaQuery.java:566) at rbccm.felix.gridservice.admin.dao.SimpleWorkflowInstanceDao.pagedQuery(Unknown Source) at rbccm.felix.gridservice.admin.dao.SimpleWorkflowInstanceDao.query(Unknown Source ... .gridservice.admin.dao.SimpleWorkflowInstanceDao.pagedQuery(Unknown Source) at rbccm.felix.gridservice.admin
3

best practice for DB recovery

have two(or more) entity managers in my DAO layer and write all changes to both instances(may have IDs ... instance, restart the failed instance and then enable writes again(that will be controlled in the DAO ... in your DAO layer but it may be affected by similar technical challenges. But instead of writing
3

Activation Issue

(SharedEntityManagerCreator.java:240) at $Proxy37.find(Unknown Source) at com.googlecode.genericdao.dao.jpa.JPABaseDAO._persistOrMerge(JPABaseDAO.java:263) at com.googlecode.genericdao.dao.jpa.GenericDAOImpl.save(GenericDAOImpl.java:113) at com.contextspace.dao.impl.BaseDAOImpl.create(BaseDAOImpl.java:93
3

Freeze during save

) at com.spiffymap.naviupdate.dao.repository.RepositoryJdoDao.lambda$save$2(RepositoryJdoDao.java:97) at com.spiffymap.naviupdate.dao.repository.RepositoryJdoDao$$Lambda$60/10789156.run(Unknown Source) at com.spiffymap.store.dao.TransactionalCode.run(TransactionalCode.java:90
2

PersistenceException UserException: Failed to validate persistence.xml

(Persistence.java:186) at net.heatboxes.dao.DaoService.(DaoService.java:42) at net.heatboxes.dao ... .Provider net.heatboxes.dao.entity.UserEntity
2

Negative snapshot user count

) at com.objectdb.jpa.JpaQuery.executeUpdate(JpaQuery.java:684) at rbccm.felix.gridservice.admin.dao.HistoryArchiver.moveHistory(Unknown Source) at rbccm.felix.gridservice.admin.dao.HistoryArchiver.access$400(Unknown Source) at rbccm.felix.gridservice.admin.dao.HistoryArchiver$1.run(Unknown Source
2

Can't open replicated database

.felix.gridservice.admin.dao.ConnectionManagerFactory.createEntityManager(Unknown Source) at rbccm.felix.gridservice.admin.dao.SimpleWorkflowInstanceQueryDao.queryInstance(Unknown Source) at rbccm.felix.gridservice.admin.dao.SimpleWorkflowInstanceQueryDao.queryComplete(Unknown Source) at rbccm.felix
2

Entity Type is not found (error 301) in Query

dao, UpdateMap update) throws Exception {     List list = null;     HashMap) dao.query(             "select u from " + User.class ... ());          map.put("email", m.getString());          list = (List) dao.query

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