ObjectDB Database Search

must connect to ObjectDB before the restart or whether ObjectDB can be restarted while the client is down and then have the client with the upgraded schema connect . That is to say, is it valid

static void main(String[] args) {         String $ connection ... .createEntityManagerFactory($ connection );            

Hi, I am new to JDO and trying to get the PersistenceManager.detachCopy functionality working. I am using ObjectDB 2.8.3 I am 1-saving an object to the db 2-loading that object from the db 3-creating a detached copy 4-closing the connection 5-modifying the detached copy 6-re-opening the connection

Hi! We need  the ObjectDB version for debug purpose/logging. Our project supports also EclipseLink - http://stackoverflow.com/questions/3493495/getting-database- connection -in-pure-jpa-setup With the Connection object the Database name & version can be retrieved. For ObjectDB

= new String[2] ;   test[0] = " connection port=6136 max=100" ;   test[1] = "start";   ... command or argument: connection port=6136 max=100 (error 531) Am not sure this is the right place to ask

Hi , i have nearly finished my project on my workstation.Which has license of objectdb activated because its internet connected . But now i need to copy my project to LAN server which is private LAN ... You can also run the activation process without an Internet connection . A link will be displayed in the console

JDBC connection . The entity classes use  no  JPA annotations, as some of our internal

statements) nor minimal (are 7 database connections really required to demonstrate the issue?).  

I have being searching all around for how to do this but still no luck. I want objectdb to be able to listen in server mode to other connections from another machine where client is installed. I will like to have objectdb on machine A, while B,C, D can access the database in a using code like

the web-app is running, I have no intention of closing the connection to the database

Is there a tutorial or instructions as how to setup a connection in JDeveloper to ObjectDB? Thanks nat nat101 Nat Gross No, but you may be able to use the Maven examples (included in the ObjectDB download file) by importing them to JDeveloper. support Support ok. thanks. nat101 Nat Gross

one  EntityManagerFactory per application, with multiple  EntityManager instances for multiple database connections . support Support

is to simply get an instance of an object from the database which is no longer connected in any way

and the office is, at home I'm on a wired connection , at the office I'm on wireless. Are you prehaps

than 3 seconds, i.e. maybe less than 100ms. See the sentence after in #2, which is connected

Explorer doesn't open file...see attached error message and odb.  Explorer doesn't cleanly close the connection either (due to error I presume). Many thanks Russ russ0ne Russell Martin Should add that Doctor doesn't find any issues and file works fine programmatically. russ0ne Russell Martin

, all " connected " offers are also removed (cascade). After that, when I iterate over offers in store

to the doc, the following code will always connect to the master unless the master goes down. 

database file name. Under http://www.objectdb.com/java/jpa/start/ connection it is explained

to minimize the time that the database is locked for backup (e.g. when the connection between the client

Hi  I'm very new to objectdb . I have bought a server and really want to use it. Our code works well with eclipselink and postgresql - until we stress it which is why I'm trying to get objected to work. realy wierd things are going on ... we are using hessian to connect our remote clients

!!! ayugoyal13 Ayush Goyal Close all connection to the database (close the EntityManagerFactory), restore, open it again. support Support

an EntityManager  in the connection pool of a live E ntityManagerFactory , where that EntityManager

addon connects to the odb file, could it be adapted to make queries to the database. The customer

the connection between these two tables correctly or not. 3.2. Both POJO-s extend my own class "Pojo.class

I was previously using embedded mode without any problem.  Today I tried to switch to server mode, and after connecting and doing some db operations I got this: [ObjectDB 2.0.3_04] Unexpected exception (Error 990) Generated by Java HotSpot(TM) Client VM 1.6.0_21 (on Windows 7 6.1

For a POC, we are considering using ObjectDB. The app is multi-threaded, multi-user, rest API service with UI. Let's say we want to deploy our app across 10 linux boxes and instead of each of these boxes connecting to a shared remote RDBMS we want them to each have an embedded ObjectDB

could be clients that do not close their connections to the server (i.e. closing the EntityManagerFactory

is a pain, everytime we start it it connects directly to the database and then we have the access error

to the classloader and get information about the new schema. I have tried to connect to the "old" db

. Should it work that way? Or are we supposed to start them both before allowing clients to connect the master

Connection (7)-192.168.120.56] (TRDatabaseServiceImpl.java:286) - Remote user emil executing DB update

another concurrent transaction that cannot yet see the operations of the first transaction. The connection

a whole to die because of lack of memory:  refusing connections and failing individual requests

Customer asked during opened ObjectDb connection (ODB location A) to stop writing and continue to another ODB file (Location B). Does exist some API to achieve that? What is a possible solution? Harman Alexander Golyshkin You have to close the database in location A, copy it from location

Hi, we would like to know if there is any API we can use to get a list of all database files on an ObjectDB server. The ObjectDB explorer has such a feature (File-Open C/S Connection -Browse...). Thanks for help! skolb Sebastian Kolb There is an undocumented method, which is indeed in use by

;   // Open a database connection         // (create a new

Hello All, Can objectdb handle client - server connections from over 200 users? Can it be efficiently used in client-server mode? Code examples where possible will be appreciated. Thank you. Regards kaybel ebele ObjectDB can handle concurrently 200 users (or more). The maximum load

to something which is different in server mode - connection management seemed like a good place to start ... is connecting to quite a few databases so it may be that the problem boils down to the cache/config

.java:617) at java.lang.Thread.run(Thread.java:745) Every worker thread has its own connection

, so if this cannot be done now, you will have to wait with this upgrade until all the client that connect the server can be upgraded. support Support

in our application with thousands of webSocket connections we are facing performance issues (excessive CPU load). We added -XX:+DisableExplicitGC to the JVM arguments and the situation is much better. As we do not do any explicit gc calls it seems that objectdb is doing so hgzwicker Hans-Georg

both are result of a change in your system or upgrading an ObjectDB version? support Support The connection

Added JPA XML validation schema files to Maven/JEE objectdb.jar. Added automatic release of pessimistic locks on client-server connection failure. Fixed an OptimisticLockException bug on commit after flushing a removed modified entity object. Fixed a  NullPointerExeption on new index building

. ( Tomcat says " Connection refused" ) Thanks, Xirt xirt Sylvain This is neither a bug report nor a feature

of connections specified in configuration. Fixed optimistic lock exception on removing of a flushed modified

Fixed a bug in "p.id IN :ids" queries. Fixed a bug in handling NOT =  queries ( issue #536 ). Fixed ClassCastException and NullPointerException in using a composite index in queries ( issue #531 ). Fixed Explorer bugs: editing embedded objects and using connection urls. Fixed

machines so all we do really need to supply should be the server connection url and no objectdb.home

happening always at the same customer. As this customer has 1000 of our apps + around 100 connected

/server interaction is running through a webSocket connection that is save against sending before q reply