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Should I Avoid Compressing Database Files?

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 saw a forum statement, which I can't find now, that led me to believe that ObjectDB database files do not compress well (in general

URGENCY, or in query does not report any objects on first operand having no results

, 2.8.9? (issue #2853 that seems relevant was fixed in build 2.8.9). Can you share a sample database

Verify Error with Java 1.7

), but then give similar error when run under GlassFish .. steps to reproduce - open your Guestbook sample

Query becomes slower on moving from ObjectDB 1.x to ObjectDB 2.x

an index is missing? It would help if you could upload a sample database and a simple test program

How to convert a boolean to an int in the query?

using such casting with criteria queries. The following queries against the world.odb sample database

DB Explorer cannot be opened after schema package renaming of entity types

. Otherwise, you will have to provide a sample database that fails to open in the Explorer, for this issue to be investigated further. support Support

Better OSGI Compability

We are currently using objectdb using osgi. However, the objectdb jar seems to be very monolithic and should be more modular to make it easier to use it with osgi, samples are: - Remove SWING dependency from core objectdb bundle - Externalize persistence and jdo apis and not putting them into

ObjectDB 2.3.1

Added support for using ObjectDB with JBoss AS 7.0. Sample databases (world.odb, points.odb) included in ObjectDB distribution. New default Explorer colors (apply with Tools > Options > Fonts > Reset All). New menu for accessing local databases (in $objectdb/db) in the Explorer. Improved

Update query null error

Could you please demonstrate it with a query that has results with the sample database that you sent


a sample database with the query that causes this exception it may help. support Support I stopped

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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