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5

Changing existing objects from Entity to Embedded

.<init>(EXA.java:87) at com.objectdb.Explorer$1.run(Explorer.java:57) at java.awt.event
5

_UserException: Attempt to open a database file '...' that is currently in use

I have an application which runs correctly in NetbeansIDE but after building it, it won't just run sometime, the app stop responding to event at a particular point. I was able to reproduce this issue while running the jar file in command line and I got this exception which I have it stack attached
5

Cast exception?

.entity.Player Description: Error during event handling: java.lang.ClassCastException: database.entity
5

ObjectDB JDO - foreign key constraints

you may be able to listen to JDO lifecycle events and then execute cascading operations by using the relevant code. support Support
5

Embedding ObjectDB on server application

during event handling: javax.persistence.PersistenceException: No Persistence provider
5

How to convert a boolean to an int in the query?

them. You can calculate it in a JPA lifecycle event. Currently you cannot convert boolean to int in
5

Object explorer cannot open odb file. ObjectDB many-to-many relationship

.java:79) at com.objectdb.Explorer$1.run(Explorer.java:53) at java.awt.event.InvocationEvent.dispatch
5

Deadlock, if two threads try to close an entity manager

Hello, we get into a deadlock, if two threads try to close an entity manager. The first thread try to close the entity manager factory which close all opened entity managers. The second thread is triggered by an event and try to close the entity manager after a database access. Both threads keep in
1

Can't open DB-file with explorer, but from within my code it works

) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue
1

@PrePersist not working correctly

the event callback method. Notice, however, that using merge as a replacement of persist is inefficient

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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