About diagnosis

Database Doctor

Explains how to use the ObjectDB object database Doctor tool to diagnose and repair database files and damaged Java/JPA/JDO objects.... tool provides two related services: Diagnosis and validation of an ObjectDB database file Checks a given ... the file is not valid (it is corrupted), produces detailed diagnosis report of all the errors. Repair of a corrupted ...

Objectdb Doctor

Hi, I have deleted an instance of ClassA. However, if I try to access ClassB, which has a field of type ClassA, ClassB.classA, then, rather than getting a null pointer for classB.classA, I get an enormous exception. How does the ObjectDB Doctor help? ... in this context in two ways: Running the Doctor in diagnosis mode once in awhile during development and testing can help in ...

ObjectDB Object Database Features

ObjectDB provides a rich set of features, many of them as the result of supporting the JPA and JDO APIs.... . Automatic diagnosis and repair of corrupted database files (the ObjectDB Doctor ). ...

Querying error - java.lang.ClassCastException: com.objectdb.o.STV

I'm getting the ClassCastException below when querying objects. As yet I haven't been able to track down the exact circumstance in which it occurs - saving and querying objects works fine on attempts to recreate - but presumably at some point an object gets saved which objectdb doesn't like. Any pointers as to what is wrong or approaches to investigate further would be much appreciated. ... mode (and then verify the fix by using the Doctor in diagnosis mode). Check if your application can bring the database again ...

Error on commit

I get the following on commit: (v2.3.7_15) Let me know if you need more info. ... running the Doctor in fix mode, but not by running it in diagnosis mode. Anyway, since the problem is solved and there is no way ...

Join query problem with new statetment

Hi, I'm trying to implement some reporting logic in my application and got nasty exception when using query with join. The query code is: ... and the new entity objects. For more precise diagnosis - please post a sample case that reproduces the exception (you may ...