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How to restore the offline backup

dear sir/mam, kindly assist how to restore the backup ayugoyal13 Ayush Goyal An ObjectDB backup is a valid database itself. Just replace the database file with the backup file. support Support ... the backup file with the previously used file which is in use ? kindly help !!! ayugoyal13 Ayush Goyal

Catching exceptions from client-server mode online backup

We're using the following to trigger an online backup and we're trying to implement server-side online backup (as discussed in https://www.objectdb.com/forum/2737). EntityManager em = database.createEntityManager(); TypedQuery<Thread> backupQuery = em.createQuery("objectdb backup", Thread.class

Backup from explorer

Is it possible to make a backup from the explorer? jastorga Juan If the database is not in use you can use the File > Open dialog and then copy and paste on the database file (right click a database file to see the copy command). But a safe online backup (while the database is in use) is not supported. support Support

Online backup in embedded mode fails

Hi, As in topic. "online backup" fails when executed in embedded mode. Everything works fine with server mode. java.lang.NullPointerException at com.objectdb.o.BAC.<init>(BAC.java:63) at com.objectdb.o.MST.U4(MST.java:1764) at com.objectdb.o.MST.U3(MST.java:1745) at com.objectdb.o.WRA.U3(WRA

Online Backup

An ObjectDB database file can be backed up simply by copying the file (with the associated recovery file if exists). This should only be done when the database is closed. Online backup will enable backup also when the database is open and in use. support Support Online backup is now implemented in ObjectDB 2.1. support Support

Database Management Settings

for backup purposes and for debugging (by providing the ability to reproduce problems by replay ... is "all" or "write") specifies which operations should be recorded. For backup purposes only "write

Chapter 4 - JPA Queries (JPQL / Criteria)

, based on JPQL. The first section describes the API that JPA provides for using dynamic and static

Schema Update

- will create new, separate persistable classes with no instances. Therefore, you should backup

Database Doctor

and often. It is also recommended to validate production database files (or their backups) often by


that dynamically binds on each method call to an instance of PersistenceManager. Get a thread-safe instance of a proxy that dynamically binds on each method call to an instance of PersistenceManager ... a server to dynamically bind to an instance from this factory associated with the thread's current

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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