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Forum
12

Import data from MySQL

mysql data into objectdb? Currently to import data from other databases to ObjectDB you will have to write your own conversion program. If you use JPA with MySQL you can retrieve old data from MySQL ... Replication feature. You may subscribe to this feature request to increase its priority. See also the migration path from JPA / Hibernate forum thread. gzdillon
Issue
12

InternalException - error reading field from "queue" database

from ObjectDB queue at rbccm.felix.objectdb.messaging.ObjectDbMessagePipe.take(Unknown Source ... .lang.RuntimeException: Error getting message from data at rbccm.felix.objectdb.messaging ... . there are broken references from entity object field values (probably in _payload) to a type
Forum
12

java.lang.ClassCastException in OSGi runtime when loading data from DB

ClassCastExceptions on my "entity" classes when I try to read data from the DB. In a very old (2011?) forum ... typedQuery = entityManager.createQuery("SELECT FROM Person p WHERE p.id = 1", Person.class ... is available from two different class loaders: A Person class that is specified in your query. A Person class
Forum
12

drop a column from table

Hi, I want to drop one column from my database table suppose i have 3 column (id, name, address) now i want to drop address. then what will be the query or procedure..   Just remove the field from ... the field from the entity class you will have to iterate over all the relevant objects, mark them as dirty
Manual
12

JPA Persistable Types

only once even if they are referenced multiple times. Referencing instances of other persistable types from multiple ... most cases ObjectDB can overcome a missing no-arg constructor. Aside from these constraints ... : boolean, byte, short, char, int, long, float and double. Equivalent wrapper classes from package
Manual
12

Strings in JPQL and Criteria Queries

(when present) specifies from which position to start the search. LOWER and UPPER - Changing String Case ... ] FROM] str) function returns a string after removing leading and/or trailing characters (usually space characters). For example: TRIM(' UK ') is evaluated to 'UK'. TRIM(LEADING FROM ' UK
Forum
12

"Rebuild Class Indexes" from the command line?

Hi, Is there a way to "Rebuild Class Indexes" from the command line? I have just added a new index and want to make sure the DBs with previously persisted entities have a BTree with all entities ... running the ObjectDB Doctor, which is run from the command line. ObjectDB 1.x included an Explorer
Issue
12

Allow removal of entity class from ObjectDB & Explorer

Hi. It would be very useful to be able to delete an entire entity class from ObjectDB, but especially from Explorer. This is very useful for everyone, but also for clients that don't own a license, thus they're limited to 10 entities / db. During the life time of a software, many changes appear
Issue
12

Can't open DB-file with explorer, but from within my code it works

Hi, The problem occured since an update from my old-version (2.4.7_08) to the new version(2.4.7_18): 1) my recent db-file, created with the old-version, has been copied to the local db-folder ... programatically (from within my code) without any errors 4) the db doctor ends without error messages
Forum
12

Changing existing objects from Entity to Embedded

Hi, I realised that I have a mistake (from application logic point of view) in one of my JDO metadata files:        from version 2.7.2_09 and it made no difference. Looks like