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How force always recreate database on redeployment.

You should be able to drop the entire database if its file is not locked by Glassfish. See the connection url ... , perhaps something gets locked up, I know that is not a very useful diagnostic. Anyway, I can currently work ok. thanks Webel webel Dr Darren Kelly

objectdb got hang after fetch some record.

.BufferedInputStream.read(BufferedInputStream.java:345) - locked java.io.BufferedInputStream@294f1aa com ... :407) - locked com.objectdb.jdo.PMImpl@778f3a48 This is the stack trace can you please tell

Criteria query error: Unexpected query token

) @GeneratedValue private Long id; /** * Version of object, supporting optimistic lock */ @Column (name = "opt_lock") @Version() private Long optimisticLock


Is it possible to change a LockTimeout for pessimistic lock? glaz Alexandr Kurucin Currently ObjectDB throws a LockTimeoutException immediately when a pessimistic lock cannot be granted. Future versions will support timeout setting. You may fill a feature request to increase the priority of this feature. support Support

Unexpected error when loading all entity instance

)? ObjectDB locks the database file to avoid concurrent access by different processes, but the lock may not

ObjectDB 2.4.0

. Fixed a bug in optimistic locking on find by using LockModeType.WRITE. Fixed exception

ObjectDB 2.6.5

specified in configuration. Fixed optimistic lock exception on removing of a flushed modified

javax.jdo.JDONullIdentityException: The identity must not be null.

more lorenz2304 Benjamin Lorenz The exception in #2 reflects a locked database file (due to a failure

Getting an error when adding activation code to conf file

enabled="false" sync="false" path="." mode="write" /> <locking version-check="true" /> <processing cache

Entity Version History

ObjectDB manages automatic entity versioning (for optimistic lock purposes). Every entity object modification is reflected by a new version number. Naturally, previous values in the entity object that are overridden by new values are discarded. Some applications may benefit from the ability

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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