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13

EntityManager getMetamodel() causes crash

the tutorial (with class Point) and it works as expected: : (995, 995) (996, 996 ... : : // Store 1000 Point objects in the database: em.getTransaction().begin(); for (int i = 0; i < 1000; i++) { Point p = new Point(i, i); em.persist(p
13

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

and it is designed for a company renting cars which has 2 or 3 different points in a town. So each point of renting has got its own client/server in the same host. The problems comes out when point A has finished the cars to rent and needs to ask for some of them to point B or point C. So GWT application of point
2

javax.persistence.NonUniqueResultException

invocation in the sequence. Typically, this is the point at which this throwable was created and thrown
2

javax.persistence.LockTimeoutException

, which is the last method invocation in the sequence. Typically, this is the point at which this throwable
2

java.lang.RuntimeException

. Typically, this is the point at which this throwable was created and thrown. The last element of the array
2

javax.persistence.NoResultException

, which is the last method invocation in the sequence. Typically, this is the point at which this throwable
2

javax.persistence.OptimisticLockException

of the stack, which is the last method invocation in the sequence. Typically, this is the point
0

javax.jdo.JDOUnsupportedOptionException

. Typically, this is the point at which this throwable was created and thrown. The last element
0

javax.jdo.JDOUserCallbackException

of the stack, which is the last method invocation in the sequence. Typically, this is the point
0

javax.jdo.JDOOptimisticVerificationException

invocation in the sequence. Typically, this is the point at which this throwable was created and thrown

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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