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8

ObjectDB with JRebel: copious 'Not Enhanced:' errors with EJBs

these warnings by reducing logging level of the enhancer agent (in objectdb.conf):     <logger name
8

OutofMemory error with Object DB 2.0

-archive path="c:/temp/odb/log/archive/" retain="90" /> <logger name="*" level="fatal
8

ObjectDb.conf Defaults

/archive/" retain="90" /> --> <!-- ok if missing <logger name="*" level="info" /> --> </general
8

Exception when dataset bigger than treshold

path="$objectdb/log/archive/" retain="90" /> <logger name="query.manager" level
8

Unexpected exception during open the database

can still be logged by setting the "index" logger to "debug" level. support Support The issue occurs
8

config optimizing

" /> <log-archive path="$objectdb/log/archive/" retain="90" /> <logger name="*" level="info
8

Setting temp directory location in ObjectDB

" /> <log-archive path="$objectdb/log/archive/" retain="90" /> <logger name="*" level="info
8

locks on pure query activities

="false" stderr="false" /> <log-archive path="$objectdb/log/archive/" retain="90" /> <logger
8

Performance tuning, best practices

/" retain="90" /> <logger name="*" level="info" /> </general> <database> <size initial="256kb" resize
1

NullpointerException at a normal select

When I run the following code: EntityManager em = getEm(); Customer result = null; try {     logger.debug("Ident: "+ident);     result = em.createQuery("Select c from Customer c where c.identifier=:id", Customer.class).setParameter("id", ident).getSingleResult(); } catch (javax.persistence

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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