About manual

121-130 of 200Refresh
Issue
1

Removing of an entity removes also another entity type

in the ObjectDB manual: Updating entity objects in the database using an UPDATE query ... a separate EntityManager. See also this relevant paragraph in the ObjectDB manual: Removing entity objects
Forum
1

Replication Error

to both servers. Thank you! Now it works. Why do i have to do this manually? The manual says
Forum
1

Some technical questions

? Do readers block writers? ObjectDB implements the standard JPA locking model - see this manual page. (2 ... queries). Thank you. I understand JPA locking, as described in the manual. But what locking mechanism does
Forum
1

Uninitialized primary key (id = 0)

with no @GeneratedValue and you do not initialize it manually. Yes, at first, there is no @GeneratedValue ... objects with IDs > 0 that you previously set manually. You may also try a different strategy
Forum
1

Update is ignored by ObjectDB

the manual in more details: There is one case, however, where enhancement is required. Non persistable ... the manual: Persistent fields should not be defined as public and accessed or modified directly from
Forum
1

Updating existing persistence entries

. It is still supported but only when using JDO rather than JPA. You should use the new manual ... and committing it on save. I never close the session manually, is that ok? Thank you very much! Andreas
Issue
1

cannot delete objects after crash (see issue 2283)

enables manual recovery by running the Transaction Replayer. - is the replication possible using ... some risk (as indicated in the manual). Modern OS and disk managers may optimise IO operations by
Forum
1

multiple connection using share folder

on one computer. See this manual page. Find the ip address or host name of that computer. Access the database using a full url connection including host and port (see this manual page). Do not use
Forum
0

"Attempt to lock a non entity object" error

  Error was caused - from the ObjectDB manual - by: "The following operations clear the entire
Forum
0

"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. http://www.objectdb.com/database/jdo/manual/chapter9 Thanks   Rebuilding an index currently requires