Fast Object Database for Java - with JPA/JDO support

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How to do an Offline Database Backup?

These are questions asked in the context of the proposed architecture described in the forum thread titled, "Sample JDO Architecture for Follow Up Questions". I desire offline backups. I must close all connections, wait for current database activity to stop, and prevent new connections

each 1-2 days objects on some objectdb level lock/block each other


Standalone server needs dependencies?

When I connect to embedded server it works good. But when I connect to a standalone server, it will have invocation errors like can't find getters and setters. To solve this I had to export my persistence classes to a jar in the server and add it to the class path when starting the server

Explorer in 2.3

, threads, query-cache, memory usage, etc...) to use for tuning b. Show all database connections ... 'recent connections'. 2. When editing a field in an @Embedded object, I get an error message: "Attempt

ODB IndexActivation NullPointerException

Support Since we switch from ObjectDB 2.6.8_08 to 2.6.9_07, we get sporadic problems if we connected ... please check if the connection time to the database affects. If the database is closed before building

Bulk Delete and Update - best practice?

the connection string in other circumstances but I need a method that can work in both embedded and server based ... , would be more efficient. drop in the connection url should work also in server mode if the database is not in use by

Exception in thread "main" java.lang.NoSuchFieldError: __odbTracker

at com.package.Network.__odbSet_Connections( at com.package.Network.(Network ... generated method: __odbSet_Connections br Tomasz Tomasz Tomasz Wozniak This might be the result

-XMX settings recommendation

The default is 256M what is the recommended settings based on? It is the size of the DB? number of connections? If the DB has over 200GB of data and max connection of 400 then will I need to make this settings higher? Thanks. Trianglehead Json Error There is no magic formula, but usually larger

JOD problems regarding detachCopy()

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

Out of Memory - Slow leak?

the "consumer" process is connected to 4 server-hosted databases and 9 embedded databases (the embedded ... with the connection so its divided into a 4 part rar archive named java_pid5568.*.rar felixobjectdb

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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