 12 | The error: Type User is not found (error 301) occurs when I query the db for a type before any instances of that type have been persisted, e.g.:
return em.createQuery ("SELECT a FROM User a").getResultList (); What I was expecting was an empty list, not an error. Is there some enhancement |
12 | you can persist any Serializable type by setting the configuration. There is no point in persisting most of the non serializable types such as Thread, because when retrieved from the database it will not ... any collections either. If this feature was in place it wouldn't matter what the object type is, surely? ThreaT |
12 | Hi, Is there a reason why we can't persist an object with a field of type EnumMap in ObjectDB ... type if you enable this ability in the configuration. But using this feature is not recommended. ObjectDB provides better support (i.e. more efficient and portable) for specific types (including collections and maps), based on the JPA specification. EKK |
12 | , Path, Selection, TupleElement A root type in the from clause. Query roots ... (Class type) Perform a typecast upon the expression, returning a new expression object. Perform a typecast upon the expression, returning a new expression object. This method does not cause type |
12 | persisting serializable types, so it should also support URL. This ability is disabled by default ... versions of ObjectDB for .NET and for other platforms. It is less efficient than simple types |
12 | .o.UserException: Failed to generate dynamic type Entities.AbstractLong
at com.objectdb.o.MSG.d(MSG ... .loadClass(ClassLoader.java:357)
... 17 more
[ObjectDB 2.6.1_05] Failed to generate dynamic type |
12 | " [ObjectDB 2.4.1_06] javax.persistence.PersistenceException
Attempt to update types in read only mode (error ... .java:48)
Caused by: com.objectdb.o.UserException: Attempt to update types in read only mode |
12 | Trying to run enhancement, I get: [ObjectDB 2.5.5_05] Invalid file type for enhancement: /home/steve/java/spiffymap-svn/sealog-core/build/classes/com/spiffymap/sealog/model/Audit.java (error 104) com.objectdb.o.UserException: Invalid file type for enhancement: /home/steve/java/spiffymap-svn |
12 | over an @entity type I get a generics error. The generic for loop is:
for (Steel s ... don't understand the circumstances) gives this error:
incompatible types
found: java.lang.Object |
12 | classes: [2011-05-31 09:16:24 #5 type.loader] java.lang.ClassNotFoundException: com.greensoft ... .Thread.run(Thread.java:655) [2011-05-31 09:16:24 #6 type.loader] java.lang.ClassNotFoundException |