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Query in JPA2 with LEFT JOIN on INNER JOIN

conditions in the query WHERE clause. support Support But the result of the query is different if insert

Finding an object by its datetime

SearchBookingByTimeStamp() { Calendar btime = Calendar.getInstance(); btime.set(2012, 10, 11, 7, 30, 00); //This time is already inserted, trying to find it /* My Query */ TypedQuery<Booking> query = em.createQuery( "SELECT b FROM Booking b WHERE b.btime = :btime

wrong query result

and then inserted that value again and saved the database. Repairing the database didn’t help, Attached

Unexpected exception (Error 990)

I have a huge amount of inserts/updates and after a about 850.000 Entities I got the following error: [ObjectDB 2.4.7_16] Unexpected exception (Error 990) Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_30 (on Windows 7 6.1). Please report this error on http://www.objectdb.com/database

Field level privileges

only allowed insert ability. Anonymous access only accesses some of the fields. kadirbasol Kadir BASOL

internal object DB locking in an embedded multi threaded application

happen all the time but periodically. We do alot of inserts, queries and remove as we use objectdb

How best to unbind all names?

My JDO application does inserts with binds, and then subsequently does bulk deletes using this code: pm.currentTransaction().begin(); Extent<ABC> extent = pm.getExtent(ABC.class, true); Query q = pm.newQuery(extent); long deletedCount = q.deletePersistentAll(); pm.currentTransaction().commit

Relationships and tracking changes

@Column(name = "VERLAG_ID") @JoinColumn(name="VERLAG_ID", insertable=false, updatable=false) private

Bidirectional OneToMany is slow on updated items

Hello, I have a problem with the following situation. I insert persons with addresses. In the first run, they are all new with a new address. It runs fast. In the second run, the persons are all loaded and got a second address. This seams to be much slower. The Entities are all enhanced by

problem when primary key value is zero

I am copying data from a postgres database to objectDB. Some of the rows in the postgres table were created by postgres DDL / SQL insert statements and so do not abide by all JPA rules and recommendations, in particular there are some primary keys with value == 0. These cause problems for objectDB

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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