About Object Database

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JDO Doc
7

javax.jdo.PersistenceManager

. This exception contains a nested JDOOptimisticVerificationException for each object that failed ... 1.0 void deletePersistent(Object pc) Delete the persistent instance from the data store. Delete ... . The data store object will be removed at commit. Unlike makePersistent, which makes the closure
Manual
6

Online Backup

An ObjectDB database can be backed up by simply copying or archiving the database file while the database is offline (i.e. when it is not open in an ObjectDB server and not in use by any application), since an ObjectDB database is stored as an ordinary file in the file system.  ObjectDB supports
Manual
6

Server User List

definitions but the master user itself cannot be used to connect to the database. The element ... . The required permissions attribute specifies which database file permissions are granted. The comma separated string value may contain the following permissions: access - permission to open a database
JPA Doc
6

javax.persistence.EntityNotFoundException

is called and the object no longer exists in the database. Thrown when EntityManager.lock is used with pessimistic locking is used and the entity no longer exists in the database. The current transaction ... javax.persistence Exception EntityNotFoundException java.lang.Object java.lang.Throwable
Issue
6

Can't open replicated database

I have a database running in server mode on port 6136 on server1 and server2. Each server has a replicated copy of the other servers database. I try to open the replicated on one database for a query ... empty state of the database. I inserted a few rows into the databases and still got the error
Forum
6

Drop the entire database, Change the schema

I am trying to port and example app to ObjectDb. As part of the tests I drop the database ... to do this with ObjectDb, or is the only way to delete the database file everytime? Thanks You can delete the database ... have two PUs configured which are the same apart from this property, I use one to 'drop' the database
Forum
6

Database is erased after deploying a new web application version

) and deploy it from Tomcat's manager, I get a new empty database. I assume there is a way (possibly a simple one) of keeping the existing database and avoid this "database reset". If that's true, I'll be glad to hear about such a solution. Thanks in advanced, Yotam. Where is your database located (i.e
Forum
6

UserException - Object User#2 belongs to another EntityManager

CDI. Problem on method execution, which runs a NamedQuery: com.objectdb.o.UserException - Object 'com ... is thrown only when mixing entity objects of different entity managers (which is forbidden, since every EntityManager manages its own space of managed objects, and a managed object
Forum
5

collection of embedded objects

1. In general, are there any restrictions of the use of @Embedded objects in collections, compared to @Entity? 2. If you have a large nested collection of @Embedded objects, and you remove the parent ... of @Embedded objects more expensive (time) than searching through collections of @Entity? Thanks
Forum
5

Object comparation never matches

Hi! I'm trying to compare 2 identical objects in SELECT with no success: @Embeddable public ... ;   Which is a part of Customer object: @MappedSuperclass @NamedQueries({     @NamedQuery(         name ... "     ) }) public abstract class Customer implements Serializable {     Object principal; The entity