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13

Insert time increases as db grows.

have index on String column. Entities are not enhanced and inserts are committed in a separate ... ? 4410 Arsenii With enhanced classes you may get much better performance. Enhancement is very easy. For example, you can apply enhancement by: > java -javaagent:c:\objectdb\bin\objectdb.jar
13

Entity Update - Is the documentation up to date?

if your classes are not enhanced. If your classes are enhanced, these changes will not trigger making ... ) is changed, will that be detected? It's just changes to elements that are not detected in enhanced ... The behavior is different for enhanced classes and non enhanced classes. With non enhanced classes - any change
0

jdoPreClear()

Method javax.jdo.listener.ClearCallback void jdoPreClear() Called before the values in the instance are cleared. Transient fields should be cleared in this method. Associations between this instance and others in the runtime environment should be cleared. This method is not modified by the enhancer. Since: JDO 2.0
0

javax.jdo.spi.StateInterrogation

javax.jdo.spi Interface StateInterrogation This interface is implemented by a non-binary-compatible JDO implementation to provide state interrogation for non-enhanced persistent classes. A call to JDOHelper to get the status of an instance is handled internally if the parameter instance implements
0

javax.jdo.listener.ClearCallback

environment should be cleared. This method is not modified by the enhancer. Since: JDO 2.0
0

javax.jdo.listener.DeleteCallback

. Access to field values after this call are disallowed. This method is modified by the enhancer
0

preClear(event)

and others in the runtime environment should be cleared. This method is not modified by the enhancer
0

jdoPreDelete()

after this call are disallowed. This method is modified by the enhancer so that fields referenced can be used in the business logic of the method. Since: JDO 2.0
0

jdoNewObjectIdInstance()

. It is intended only for application identity. If the class has been enhanced for datastore
0

javax.jdo.listener.ClearLifecycleListener

the enhancer, so access to fields is not mediated. Parameters: event - the clear event. Since: JDO 2.0

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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