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Optimistic locking: prevent version increment on entity collection attribute

of entities (one to many relationship) with an optimistic locking strategy supported by a version field. Is it possible to prevent the increment of the version of entity E when entities are added to or ... a mapped by) then adding and removing entities should not change the version. Otherwise the version

Is persistence version 2.1 supported?

Using the current version of persistence.xml leads to an error: <?xml version="1.0" encoding="UTF-8" ?> <!--<persistence xmlns="http ... .xsd" version="1.0">--> <!-- ObjectDB doesn't seem to like version 2.x persitence.xml

Database is erased after deploying a new web application version

;a new version of the web application (WAR file) and deploy it from Tomcat's manager, I get a new ... it: When running a new web application version, I get an exception saying this file ... the current web application version and then deploy the new one. Something still keeps this file

Is there an API to get the current version of ObjectDB that's being used?

Is there an API to get the current version of ObjectDB that's being used? This would be very handy to have, because it is somewhat difficult to know what version of the ObjectDB you are currently using since the objectdb.jar filename remains the same for all versions (which is not

How to retrieve the ObjectDB version number?

Hi! We need  the ObjectDB version for debug purpose/logging. With the Connection object the Database name & version can be retrieved. For ObjectDB, which is the best (JPA) method to get the version

Latest version with license for evaluation

looking to evaluate ObjectDB - Can you please let me know the latest version maven entry i got confused as the downloads have version in 2.5.X series and maven has it till 2.4.0. Kindly let ... properly. We need support for at least 50 entities or full blown version where we could test it properly

version 2.8.9_06 significantly slower for queries compared to 2.8.9

we tried (you have our example database form former issues) the latest version, did ... >Version 2.8.9_01 fixed an issue with queries (issue #2858) but had a known query performance regression. It was fixed in version 2.8.9_02 but maybe there is another relevant 

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

> Can see correct version of objectdb-2.6.9_02 in /build/web/WEB-INF/lib. version. Q: How can one interrogate objectdb for the version at run-time ... of the ObjectDB version in the header of the log output. webel Dr Darren Kelly Answered

Error 990... and then new version?

still show the old version, and the new version does not seem to be in that repository... or at least I ... version this time!  Here is updated (and filtered for brevity) stacktrace:   joshua Joshua Chambers Could you please try ObjectDB version 2.7.6 or 2.7.6

Entity Version History

ObjectDB manages automatic version_field">entity versioning (for optimistic lock purposes). Every entity object modification is reflected by a new version number. Naturally, previous values in the entity object that are overridden by new values