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EM close causes an exception

, empty the root tmp directory before starting). Temporary directories should be distinct and locked ... -purge", "true"); does not help. But I empty the tmp directory. And during the execution I saw

Object DB vs EclipseLink/TopLink: Unloaded relationships in detached entities

relationships were null (not even just empty where appropriate), and on various pages I got NullPointerExceptions where non-null collection results (including non-null empty) were expected. As explained to me by

How force always recreate database on redeployment.

to force ObjectDB to always delete or empty the database file on startup ? webel Dr Darren Kelly ... To obtain a connection to an empty database (discarding existing content if any) the drop parameter

Recovery file does not match db file

, which has been fixed in version 2.4.0. Please check if the recovery file (odb$) is empty ... - you should upgrade your server. support Support recovery files aren't completely empty (though are tiny, around 306

Schema Evolution Question

the client application was EMPTY. SUBSEQUENT restart of ObjectDB and client after attempting to access ... (with the old schema) being read by the client using the new schema was empty. CAPdev CAP Dev Thank

problem with lazy loading - unittest project attached

, one entity with 2 related entities. if i use EAGER the test pass, if not the related entity list is empty ... a detached Foo instance and the collection looks empty. support Support thanks for your help

Error reading UTF string (Serialized Objects in Explorer)

.MitgliedVertraegeFragment')).contracts IS EMPTY))) quasado Alexander Adam The attached database is empty

each 1-2 days objects on some objectdb level lock/block each other

.isNextOperations is not empty)or(o.isCurrentOperation is not empty)) hgzwicker Hans-Georg Zwicker the version

Different behavior for casting and not casting

.MitgliedVertraegeFragment')) IS NOT NULL Furthermore, checking for empty collection doesn't return any entity ... .MitgliedVertraegeFragment')).contracts IS NOT EMPTY quasado Alexander Adam Apparently inheritance in casting was broken

Threaded Test - Failed to commit transaction: Unexpected internal exception

;             }             catch(NoResultException nre) {                 //the queue is currently empty ... up with the producer rate (because of some unknown differences between the JDKs) and the queue remains almost empty

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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