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Issue
21

ObjectDB-2.6.9: Failed to commit transaction: Failed to set numeric value of field property Element.id using reflection

to set numeric value of field property com.greensoft.objectdb.test.entity.Element.id using reflection ... .6.9] javax.persistence.RollbackException Failed to commit transaction: Failed to set numeric value ... : com.objectdb.o.UserException: Failed to set numeric value of field property com.greensoft.objectdb
Forum
21

Pessimistic Lock Timeouts setting

._LockTimeoutException: Write lock cannot be granted for a.b.c.d.EE#150. irrespective if I set ... would be that the current application method 'sleep' until the lock is released. Is this possible? I realise setting ...  setting (javax.persistence.lock.timeout) was just added in build 2.2.3_02. Please check
Forum
21

DB Doctor sets type to "unknown" for new fields

to the schema as expected, however their type is set to unknown - we were expecting Boolean. The attached ... ) is set to unknown. Both are defined as Boolean in Java code. As a result, update operations ... to false: UPDATE RecordingMetaData AS r SET r.emergency=false WHERE r.emergency IS NULL DB Explorer
Forum
20

Setting temp directory location in ObjectDB

file. I am using JDO and setting the persistenceManager as follow properties.setProperty("javax.jdo ... " /> But can you please let me know, if i dont want to use the conf file, how can i set the temp directory using my java class  e.g setting through system property or ..... I m using fileName.odb file
Manual
20

JPA Metamodel API

to retrieve sets of types: // Get all the managed classes: // (entity classes, embeddable classes, mapped super classes) Set allManagedTypes = metamodel.getManagedTypes(); // Get all the entity classes: Set allEntityTypes = metamodel.getEntities
Forum
20

Can a Set<E> be a foreign key?

a variable (private Set cellHeldCharacters;) which holds the IDs of the characters within the cell ... /unrecommended to do it for a Set? For a better picture, I have: @Entity public class Character ... ;     private double cellSize;     private Set cellHeldCharacters; And I want to know if I
Forum
20

Understanding Database max-threads objectdb.conf Settings Option

to forum thread mentioned above), I set Database max-threads.  In the documentation, it was not completely clear to me if this setting controlled how many internal threads ObjectDB uses, or if ObjectDB is doing some sort of queue/locking whose depth is determined by this setting (and entries
Forum
20

Iterating over large result set

of given size until whole result set is iterated.  What I'm thinking about is some kind of streaming of result set from database without building whole object graph representing fetched data in application ... with a hint "objectdb.result-fetch" set to "LAZY". Another option is to use a report query, i.e
Forum
20

JPA and handling large data sets

. But exporting large binary data sets is very slow. To avoid memory problems the binary data type is read step ... sets the way is slow. We have an own entity for storing binary data (pictures, documents). Hint ... the next set of objects. Usually the problem is only with setFirstResult and using setMaxResults
Forum
20

JPA query of a Set of terms

of SearchTerm objects. ie. Set terms;     // the set is filled with SearchTerm objects ... : Set terms; // the set is filled with SearchTerm objects