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Activation error on Schema change

There was an EFI update few days ago on my MB - maybe this was causing problems. Anyway - I had to activate

Problem with distinct select, order by and equivalent alias/attribute path

for the wildfly server instance. Nothing really worked so far but I'll try it again the next days

Error reading UTF string

Good day, I have many errors like this, when try to use java.util.UUID as string in querys. 16:18:41,862 ERROR [org.jboss.ejb3.invocation] (http- JBAS014134: EJB Invocation failed on component AuthenticationBean for method public abstract java.util.UUID granat.dp.ejb

Executing JUnit "all tests" throws "Object ... belongs to another EntityManager" Exception

Good day! I wrote some JUnit tests that create separate objectdb databases and exercise the entities therein (via read/write operations). The tests run fine individually, but when I run "all tests," one fails consistently with the message: com.objectdb.o._JdoUserException: Object 'actr.model.Symbol

Server connection management

The server does not appear to release broken connections. My typical development pattern is to keep reloading my war file in tomcat until the permgen space runs out, and then I kill and restart tomcat. After a few days of this, the server stops responding, and I see the following in the server logs

Vacuum - Reclaiming Unused Space In Odb

I was curious if you could assist me with a challenge we are having with our objectdb database. Our odb files are about 50Gb in size and are written to about a million times a day with both adds and updates. This is creating a lot of unused space in the database that we are wanting to reclaim

Embedded mode usage question

reply ! Will definitely give it a try then in our service POC. Thanks and have a nice day, Dmitri livotov Dmitri Livotov

combined index not used

we take an endDate that is 30 days from the current date (in your case the date of the last Action). The endDate

NullPointerException on initial database creation

reproduces the issue within a couple days. JohnSchneider John Schneider

Negative snapshot user count exception

ObjectDB version for several days (with a clean database of course)? If you can share the database (e.g

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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