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

us to build a distribuited gwt app. so there are multiple hosts, each one with its own database

OutofMemory error with Object DB 2.0

.objectdb.o.ENT instances with strong references? It may be the result of creating multiple

How force always recreate database on redeployment.

. Currently, to avoid multiple models in the database, I have to undeploy from Glassfish, stop

Multi-Threading/Distributed-Database Questions...

of references, but in this case queries on multiple databases are not be available. support Support

How does objectdb deal with conflicting schemas?

Suppose we have an objectdb network server with multiple clients connecting to it. Some clients have the latest object schema, matching that of the server. But some have an older schema, not using fields that have since been added. Will this work? FastModel Ben Schreiber This is strictly forbidden. You must have the same version of classes everywhere. support Support

Error: Failed to write value of field X using reflection (oneToMany relation)

Hi there! I have been all day trying to solve this. I have read multiple sites and documentation, but I can go through this. I have a clase named Pedido, that have a reference ManyToOne to a clase Cliente. @Entity public class Pedido { @Id @GeneratedValue private long id

evictAll() behavior

. shared by multiple EntityManager / PersistenceManager instances. There are also other differences in

ArrayIndexOutOfBoundsException: -1

, sometimes it will run for a couple of minutes - so is most likely connected to the multiple threads. I

Unexpected error when loading all entity instance

this approach it will be impossible for multiple processes to access the database file. Thanks, Markus

Retrieving Metamodel without Connection

Hello! I use Spring Data JPA. It uses the Metamodel to create repository beans. This triggers a connection to the ObjectDB server. It happens on every start of the Context. If it fails the application isn't available at all. I had the situations multiple times that my database server took longer

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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