ObjectDB ObjectDB

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5

How to store and compare Date up to sec.

ObjectDB identifies simpler date/time instances, such as in your question, and their storage consumes less space. support Support
5

Mapped (Inverse) LAZY @OneToMany vs. Unmapped LAZY @OneToMany

object when it is loaded in order to identify changes on commit. In previous versions of ObjectDB
5

Using multiple databases

Is it possible for an ObjectDB PersistenceManger/EntityManager to connect to more than one database at a time? Also, can objects in one database reference objects in another database (e.g. through globally unique identifiers)? jonb Jon Brumfitt You can use as many databases as needed at the same
5

Pre-detach loading: retrieval by navigation not working in if statement

me ages to finally find/identify this problem, as I did not imagine that performing the load access
5

JPQL keyword in entity - what to do?

.o._PersistenceException: Unexpected query token 'type': Identifier is expected at com.objectdb
5

Query with FETCH JOIN returns multiple results instead of one.

and fetch its services. Demand object is identified and found correctly, but as it is associated
5

Failover from Master to Slave

operations by your application: identifying a failure, moving to the replicated database url, switching
5

Lock prevents PersistenceManager.close when retainValues = false

at least the relevant threads)? Does VisualVM identify a deadlock? support Support These are all the threads
1

Internal Exception and Index Problems

how this happened, and unfortunately the Doctor doesn't include checks to identify this mismatch
1

ObjectDB 2.4.0

Added support of entity collections as query parameters. Added support of running ObjectDB within Eclipse 3.7 wrapper jar. Added support of sharing an identifier name for a variable and a parameter in the same query. Added support for using ObjectDB with GlassFish 3.1.2. Added handling missing

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.

Need Help?

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