About enhancement

forum_thread

zip file or JAR manifest missing

I found the message: Error opening zip file or JAR manifest missing: /E:/projects/ObjectDB/bin/objectdb.jar Some of projects can read the DB, but others can not read or write the DB. #1 2011-06-28 15:38 I found the message: Error opening zip file or JAR manifest missing : / E :/ projects / Obje ...

 
issue

Internal exception

Hello. We got the following stacktrace. Can you explain me what this internal exception means and why it was thrown? It only happens when the entities are enhanced. Best regards BTC ES   Bug Version: 2.7.1 Priority: Critical Status: Closed Replies: 3 Type:  Bug ...

 
manual

ObjectDB 2.6 Developer's Guide

Welcome to ObjectDB for Java/JPA Developer's Guide. Here you can learn how to develop database applications using ObjectDB and JPA (Java Persistence API). The main purpose of this guide is to make you productive with ObjectDB and JPA in a ...

 
api-jdo

jdoPreClear()

Called before the values in the instance are cleared.(Method of javax.jdo.listener.ClearCallback)

 
api-jdo

jdoPreDelete()

Called before the instance is deleted.(Method of javax.jdo.listener.DeleteCallback)

 
api-jdo

javax.jdo.listener.StoreCallback

This interface is used to notify instances of store events.(Interface of JDO)

 
forum_thread

Bidirectional OneToMany is slow on updated items

Hello, I have a problem with the following situation. I insert persons with addresses. In the first run, they are all new with a new address. It runs fast. In the second run, the persons are all loaded and got a second address. This seams to be much slower. The Entities are all enhanced by the javaagent (which you can see in the contained eclipse launch configuration) Is there any way to speed it up?       #1 2013-02-22 10:02 Hello, I have a problem with the following situation. I insert persons with addresses. In the fir ...

 
api-jdo

PersistenceCapable.CHECK_WRITE

If jdoFieldFlags for a field includes CHECK_WRITE, then the field has been enhanced to call the jdoStateManager on write if the jdoFlags setting is not READ_WRITE_OK;.(Static Field of javax.jdo.spi.PersistenceCapable)

 
api-jdo

preClear(event)

This method is called before the implementation calls the instance method ClearCallback.jdoPreClear and before it clears the values in the instance to their Java default values.(Method of javax.jdo.listener.ClearLifecycleListener)

 
issue

Mapped by fields are not initialized by JOIN FETCH in queries

As demonstrated in this forum thread, a mapped by collection field with lazy fetch mode is not initialized in results of a query that uses JOIN FETCH on that collection field (when enhancement is used). ... query that uses JOIN FETCH on that collection field (when enhancement is used). ObjectDB Support ObjectDB - ...