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37

using objectdb.jar in writing data to mariadb or mysql db

and reduce the use of regular sql patterns. Can my application use the objectdb.jar to write to mariadb or mysql using native java JPA API and in some cases JPQL or must i store to an Objectdb unique database? Moreso, does Objectdb have backup tools to back up the singular object database file
37

ObjectDB Clustering VS Hadoop Hbase

of the performance problem. The ObjectDB cluster may be a distributed database, I guess. But I dont know ... Hbase and ObjectDB clustering? TIA gzdillon Lai Yang ObjectDB supports master-slave cluster, in ... . All the servers in an ObjectDB cluster maintain a full copy of the database. In HBase data is divided
37

How to have a distribuited GWT application with ObjectDB and Spring?

A needs to access the remote database in hosts of point B or Point C. As database we use Objectdb ... me? Silent Hill Lorenzo Vinci We will be happy to help you regarding using ObjectDB, but apparently ... and it fails to work with ObjectDB, please explain what you do and what doesn't work, and we will try to help
37

Where Does ObjectDB Block/Lock?

. With my PersistenceManager multiThreaded=true architecture, I desire to know where ObjectDB is actually ... () if optimistic=true? 5) ObjectDB 1.0 Manual (Support > Knowledge Base > ObjectDB 1.0 Manual > 5. JDO ... transactions are preferred." But, newer version 2.6.8_05 ObjectDB defaults optimistic=true, perhaps implying
37

Failed to create a new file 'target\objectdb\log\archive' (error 112)

Hi, we are using ObjectDB 2.4.6_10 (embedded mode). The pre-registration of a data type ... \objectdb". The folder "target\objectdb\log" does not exist yet. Do we have to create ... -register types in database [11:47:18]: [com.rbccm.felix.server:integration-test] [ObjectDB 2.4.6_10] javax
37

Add class to objectdb ?

. Here is the problem i got : Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at com.objectdb.o.NED.h(NED.java:97) at com.objectdb.o.NED.j(NED.java:188) at com.objectdb.o.NED.actionPerformed ... .setVisible(Window.java:1014) at java.awt.Dialog.setVisible(Dialog.java:1003) at com.objectdb.o.RTR
37

In memory processing for ObjectDB

speeds very high. We like ObjectDb because its simplicity and the performance benchmarks ... for ObjectDB where recovery is possible, something like prevalyer etc. Basically we want to hit a huge Transaction per second limit and making sure if ObjectDB can help us here. Additionally the only cache I
37

Join performance in Objectdb

(                 "objectdb:$objectdb/db/test.tmp;drop");         EntityManager em = emf.createEntityManager ... of Objectdb seems to be based on the size of fields of entities: JPQL> select count(e.id) from Page e ... but then it would work faster. > The aggreiation of Objectdb seems to be based on the size of fields of entities. I
37

Which storage fits best to ObjectDB?

Hi, we are just about to put together a new server for our applications using ObjectDB (v 2.6). We have a dilemma about the storage holding the ObjectDB files: if to invest in a mirrored RAID of SSDs ... . The reason we are asking the question in this forum is that we would need to know how ObjectDB
37

How find out ObjectDB version at runtime (in a web app)

Am getting inconsistent results with the "objectdb.temp.no-enhancement-crc-check" system property of objectdb-2.6.9_02 in a Glassfish web app. Can see correct version of objectdb-2.6.9_02 in /build ... script) Object clearly indicates the version. Q: How can one interrogate objectdb for the version

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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