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New Web Application Tutorials

New ObjectDB/JPA tutorials have been published today: Eclipse/JPA Web Application Tutorial NetBeans/JPA Web Application Tutorial The new tutorials demonstrate how to build a simple database driven web application using ObjectDB and JPA. Understanding these tutorials requires some familiarity
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Newbie : How to return the auto-generated ID

Hello, I am new to this community, as well as JPA and ObjectDB. I want to read the auto-generated ID when I persist a new entity (with @Id @GeneratedValue annotations applied). I am following the following link : http://www.objectdb.com/tutorial/jpa/eclipse/web/entity Thanks. The id is available in
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NullpointerException when execute a merge

.Method.invoke(Method.java:606) at org.eclipse.e4.core.internal.di.MethodRequestor.execute
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NullPointerException when using multithreading

is a simple Eclipse project.  You can import the project and then attach your instance
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Object DB vs EclipseLink/TopLink: Unloaded relationships in detached entities

.eclipse.org/mhonarc/lists/eclipselink-users/msg05258.html: Detached Objects get the connection need
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ObjectDB JDBC to Object compiler

Hello , some products developed by JDBC , So we cannot use ObjectDB. My idea is , you can make JDBC To ObjectDB wizard compiler or something like this. You can eliminate JDBC Requests from Java Code. It can be Intellij or Eclipse IDE plugin for ObjectDB.   It dedects strings and combinations like
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Out of Memory - Slow leak?

I've attached the leak suspects report from Eclipse Memory Manager in the hope it may help. Please let
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Performance in large transactions

we have an example that illustrates the behavior. 1) Import all Eclipse Project's 2) And then Run
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Possible issue with Spring JPA and Embedded

project, and then 'import' into eclipse). I've stripped out as much as I can, but not sure how I
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Primary key generation problem after changing entity package

) at com.objectdb.jpa.EMImpl.persist(EMImpl.java:375) ... 1 more I add my Eclipse project as attachment