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Interface used to control the execution of typed queries.(Interface of JPA)


Tutorial issue

Ok, so I'm stuck on the Eclipse tutorial. I have a number of other projects running in Eclipse right now, so I created the new project as specified in Step 1 The only thing I did differently was in steps two and three I used the source folder "Tutorial/src" which is what I used to create the project in Step 1; Here's the output; ... Remove one of them from your project and start with a new empty database. ObjectDB Support ObjectDB - Fast ...


Database absolute filepath

Is there a line of code that can be used to print out my databases absolute path? I have set it as follows: EntityManagerFactory emf = Persistence.createEntityManagerFactory("$objectdb/database/people.odb"); However, the data being shown in *\lib\objectdb\database\people.odb* is different than what is being used in the rest of the application so I think there might be more than one database somehow.... to discard an old database (if exists) and create a new empty database. By default it works only for database files with the temp / ...


Storing objects problem

I want to save this object to database: @Entity public class Device { private String name; private String type; private String ipAddress; private Device parent; @Id private String ID; private String ID_HZMO; @ElementCollection private List<Device> children; }    ... include any indication that the child devices are not empty. Please follow the posting instructions and provide a simple ...



Interface used to control query execution.(Interface of JPA)


multi thread application, id field sporadically null

We are testing objectDB with a multi thread application. Each thread has it's own entityManager created from a common factory. In one thread we receive sometimes an object from the database with the field that is declared as @Id having the value null (what is not correct, we checked that with the explorer). The class is declared like this: ... ... may want to check if using a new EntityManager with an empty cache makes a difference, as well as disabling caches in the ...


TYE NullPointerException

I've been seeing the following stack trace in a couple of tests today: ... data will not be available and the collection would look empty - if it has not been loaded before detachment). If an unexpected ...


zip file or JAR manifest missing

I found the message: Error opening zip file or JAR manifest missing: /E:/projects/ObjectDB/bin/objectdb.jar Some of projects can read the DB, but others can not read or write the DB. ... example, if you are trying to use your application with an empty database. Here are a few possible solution to this problem: ...


Database Explorer

Explains how to run and use the ObjectDB object database Explorer to view and manage Java/JPA/JDO objects visually.... fields, but the [Summary] view is initialized as an empty view. Therefore, unless set, persistent objects are presented in the Tree viewer as an empty set of fields (using "{}"). To set a view for a class, first ...


[ObjectDB 2.6.9] Unexpected exception (Error 990)

[2017-03-29 14:04:44 #1 client] [ObjectDB 2.6.9] Unexpected exception (Error 990)   Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0_121 (on Windows 8.1 6.3). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb.o.InternalException at com.objectdb.o.BYR.o(BYR.java:113) at com.objectdb.o.BYR.w(BYR.java:206) at com.objectdb.o.VUT.j(VUT.java:350) at com.objectdb.o.RST.C(RST.java:194) at com.objectdb.o.RTT.l(RTT.java:134)... the exception on a new / healthy database (i.e. an empty database or a database that has no errors in the Doctor check). ...