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system exception occurred during an invocation on EJB GuestDao

(WorkerThreadIOStrategy.java:115) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100 ... .WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55) at org.glassfish.grizzly.strategies ... ) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55

How to have a distribuited GWT application with ObjectDB and Spring?

A needs to access the remote database in hosts of point B or Point C. As database we use Objectdb ... and application. I've learnt that with Spring it's possible to create REST services to access the other remote ... , which would be accessed from all the hosts, rather than a separate database for every host. support Support

Dependency from enhanced classes to the objectDB library

.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner ... .ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000 ... .runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access

Multi threading on DMOs by lazy loading

the identical instance of EntityZ. Thread1 access fieldX by lazy loading. Thread2 access fieldY by lazy loading. Thread3 access list by lazy loading. Does the multi threading access on different fields work

New to Product & Having An Issue

. package test.Domain; ...imports.... @Entity @Access(AccessType.PROPERTY) @NamedQueries ... .... @Embeddable @Access(AccessType.PROPERTY) public class DomainId implements Serializable { public ... .runners.ParentRunner.runChildren(ParentRunner.java:180) at org.junit.runners.ParentRunner.access

Concerning coding style of the example in the posting instructions

private instance variables are used and then accessed by external clients without accessors. One example ... must be directly accessed only from within the methods of the entity by the entity instance itself. Instance variables must not be accessed by clients of the entity. The state of the entity is available

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

>                 <user username="admin" password="password">                         <dir path="/" permissions="access ... ="$$$###">                         <dir path="/$user/" permissions="access,modify,create,delete ... ">                         <dir path="/" permissions="access,modify,create,delete

ObjectDB Clustering VS Hadoop Hbase

order for visiting a slave than a master? For the reading balance, one may want to access female information by the master node, and access male information by the slave-1 node, and access ... write access. I can not imagine how do you maintain a flexible database index. Eagerly, I want to test

[ObjectDB 2.5.5_03] Unexpected exception (Error 990)

null. Accessing fields through a null expression is very different from comparison and arithmetic ... spec. I think that accessing a value field using a NULL reference is evaluated to either NULL or UNKNOWN, Accessing an entity is a different story because it implicitly defines an INNER JOIN, i.e

Freeze during save

) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76 ... (QueuedThreadPool.java:565) at org.eclipse.jetty.util.thread.QueuedThreadPool.access$800 ... .access$800(QueuedThreadPool.java:50) at org.eclipse.jetty.util.thread.QueuedThreadPool$2

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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