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Reading 1.x odb files in ObjectDB 2.x without upgrading

Hi, We have a problem in the backward compatibilty in our software as once we have migrated object db odb file from version 1.x to 2.x, user is unable to open the odb files in the application which is having object db 1.x installed. Is there any way to read odb files from 1.x in object db 2.x
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8

What algorithm in find()

a linear complexity, i.e. O(n). So what algorithm in find()? Can it improved to O(log(n)) complexity ... this forum thread that might be relevant.   I use your codes to commit, the time cost in the attachment shows a O(n) complexity. Why? The cost of insertion is subjected to the number of objects in database
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8

'DROP TABLE' in ODB?

Let's say I no longer need some entity in my project and after deleting all the objects of this type in database I want to remove this type from schema. How can I do this? Is there something like SQL 'drop table' in ODB? This is currently not supported. As far as I understand the main effect
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8

Cannot sort descending, when ordering by caluculated float in a method

Hi, I have found an issue in ordering by a method. I have two entities : Invoice and InvoiceItem ... EDIT: I have found out, that ordering doesn't work in this case at all - it was only a luck, that asc ... (inverse) fields are unavailable to methods in queries, regardless if the method is used in ORDER BY or in
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8

Concerning coding style of the example in the posting instructions

(This forum item was spawned from discussions in a private helpdesk ticket.) I write with reference to the coding example in the posting instructions and many of your other examples posted in ... , compliant entity classes belong in separate files. Secondly, in many forum posting examples, package
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8

Configure ObjectDB in spring context

is to configure entire ObjectDB (optionally objectdb.conf too) in springs context.xml file so that I'd be able ... ObjectDB with Spring Framework in this tutorial. Yes I've seen that option, but my application is not ... database.xml (which is included in application-context.xml) look like this
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8

Deploy ObjectDB in WildFly 10

Hi, I'm currently evaluating ObjectDB and try to deploy my project in WildFly 10. I've installed ObjectDB in the modules directory and added a persistence.xml file: in-memory-db.jar".FIRST_MODULE_USE: org.jboss.msc.service.StartException in
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8

explorer locks local database in readonly mode

hi, my current use case is: execute unit test, verify results in explorer. my problem, i ... down the whole process. i opened the database in readonly mode, but the file will be locked by the explorer ... , so this is now in a very high priority and version 2.3 is expected to support essential improvements. Viewing
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8

ID format in objectdb 2.x for JDOHelper.getObjectId

db tuotrial. I am just wondering, in objectdb 1.x, when i am tring to get the object id ... for the same object in object db 2.x, i am getting Object obj = JDOHelper.getObjectId(logTestRunImpl) obj ... . Can you please let me know if there is any change in the JDOHelper.getObjectId method from object db 1.x
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8

Is there an update on running ObjectDB purely in-memory?

ObjectDB purely in-memory, without a any file on disk? Note that "file on RAM disk", which was proposed in the past, is not an option for the application I have in mind. It would need to be true in ... an unreleased feature for a while, and following your post it is now included in version 2.6.4. In