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32

Database server with an application

Hi, I read the database server section of the manual - and it looks like it is not possible to connect to a Database embedded with an application from another application - is that correct? The way to go is to have the DB server running by itself and then the 2 other applications connecting
32

RT Java application recording into 100DB run OOM after a few hours.

Hi, I am running a java application that records data from 100 feeds into 100 different database - this is done is one thread. It works fine several hours - and suddenly i got an out of memory issue ... - so it must be using the default somewhere). 2/ Using Netbeans, I profiled the application and I noticed
32

Persist not working when ObjectDB and another db is used in the same application (through spring) with different tx managers

Hi, Object are not being persisted when ObjectDB and another db is used in the same application (through spring) with different tx managers, please find an example of this below. Any help is greatly appreciate as we are currently evaluating ObjectDB to use in our new enterprise application
32

Can I use the objectDB in android application?

I'm interesting in the ObjectDB, and I want to know if it passiable run at the android application. The ObjectDB does not support other program language , but can the export an relational database models and data,when they have to change. wamdy wamdy Android is currently not supported
32

Refresh data in application after database data has changed

Hi, I have a Java program that can manage and create some Person objects. When I start my application and I want to add a person with the same national number as a person already in the database, my program has to block the creation. So far so good. Now... I have a person in my database
32

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
32

internal object DB locking in an embedded multi threaded application

Hi, we are using Embeded objectDB 2.4.4_06 in a highly multithreaded concurrent manner and we have noticed a performance problem in our application that seems to be attributed to ObjectDb's internal locking. When profiling our app in JVisualVm we notice a large number of threads are blocked
32

Rename Application StringIdentity

I don't think JDO supports altering an entity's Application Identity. Does ObjectDB? @PersistenceCapable public class MyClass implements Serializable, Cloneable{ @Id private StringIdentity id; ... } PersistenceManager persistenceManager = ...; Transaction transaction
32

How to connect to an embedded ObjectDB in a JPA/JEE application?

It is easy to change the properties in persistence.xml file to connect to an ObjectDB server. But I could not find any reference who to connet to an embedded objectdb in a JEE/JPA application through changing persistence.xml file. Can any one please help ? buddhika75 M H B Ariyaratne Just replace
6

Application not starting after enhancement

I added the class enhancer to my build script and I get the expected output of a list with the enhanced classes. Now if I try to deploy my created application I get the following error: Caused by: java.lang.AbstractMethodError: Receiver class org.test.app.base.models.Data does not define or

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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